CN104087725B - High-strength steel thermoforming area heating installation - Google Patents
High-strength steel thermoforming area heating installation Download PDFInfo
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- CN104087725B CN104087725B CN201410318126.3A CN201410318126A CN104087725B CN 104087725 B CN104087725 B CN 104087725B CN 201410318126 A CN201410318126 A CN 201410318126A CN 104087725 B CN104087725 B CN 104087725B
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Abstract
The invention discloses a kind of high-strength steel thermoforming area heating installation, only can realize the mechanical property of materials be uniformly distributed problem for overcoming prior art, high-strength steel thermoforming area heating installation comprises upper mechanism, lower mechanisms and heating arrangements.Lower mechanisms comprises the identical upper bolster pillar stiffener (2) of 4 structures and lower base (11), the bottom of the upper bolster pillar stiffener (2) that 4 structures are identical adopts welding process to be vertically fixed on the corner place of lower base (11), lower mechanisms is passed through its underpart base (11) and is adopted lower base standing bolt (10) to be connected with ground, upper mechanism comprises upper bolster (1), on the upper surface of the upper bolster pillar stiffener (2) that 4 structures that upper mechanism is arranged in lower mechanisms by its upper bolster (1) are identical, and adopt welding process to be fixedly connected with by the lower surface of the upper surface of upper bolster pillar stiffener (2) with upper bolster (1), heating arrangements is arranged on the ground on rear side of lower mechanisms.
Description
Technical field
The present invention relates to a kind of ferrous metal thermoforming heating unit, or rather, the present invention relates to a kind of high-strength steel thermoforming area heating installation.
Background technology
Along with the quick growth of national economy, the raising of living standards of the people, automobile pollution significantly rise, the problems such as the energy, environmental pollution, traffic safety also highlight day by day, how under the prerequisite ensureing vehicle safety, automobile lightweight becomes automobile industry important topic urgently to be resolved hurrily.High-strength steel, with the high advantage of its unit weight crashworthiness, ensures the main raw of Crash Safety Design of Vehicles after becoming automotive light weight technology.And high-strength steel hot forming techniques realizes the stamping important way of high strength bodywork parts high precision.In forming process, boron steel is heated to about 900 DEG C, makes it uniform austenitic, then with stamping in the mould of cooling system, pressurize rapid quenching cooling simultaneously, makes austenitic transformation be martensite, increases substantially part strength.At present, the martensitic steel obtained by heat forming technology has the breakdown point of more than 1500MPa and the elongation of 5 ~ 6%.However, the safety component with uniform high strength degree can not meet energy absorption capacity requirement usually, the high component of intensity not necessarily can the collision energy-absorbing effect of lift structure to greatest extent, and rational structural strength distribution just can improve deformation tendency and the energy absorption characteristics of part.As: center body pillar stiffening plate, the intensity of its upper end design should be very high, and elongation is lower, and the intensity of lower end design should be very low, and elongation is higher.Like this, when center body pillar is subject to side collision, because stiffening plate lower end is softer, first produce distortion, guide impact force sill strip direction downwards to transmit, thus reduce the intrusion volume in B post upper end (occupant's chest height location) passenger protection district.And be make the different sites of Same Part have different mechanical propertys, realize performance by areal distribution, traditional method has:
1. tailor welded technology (TWB), weld together by AHSS and other Medium And Low Strength Steels, realize performance by areal distribution, and the shortcoming of this method is weld seam in TWB limits the plasticity of plate, thus greatly reduces the complicacy of part shape; Meanwhile, need the coating removing surface of steel plate before welding, this can make the problem producing plate oxidation in heat-processed; And the discontinuous design difficulty too increasing shaping dies of the thickness of slab that the welding of different thickness plate causes.
2. milled sheet technology (TRB), the thickness namely by using the roll of different size to change same plate different positions in the operation of rolling.The shortcoming of the method is that the change of sheet thickness can increase the difficulty of die design in order to guarantee part shape tolerance range and the good contact between plate and mould; Simultaneously because the restriction of stock layout constraint causes the material use efficiency of the method on the low side, cost is higher.
3. aftertreatment tempering process, the method is after the part obtaining complete formation of martensite, carries out aftertreatment tempering to its regional area, makes this place's Martensitic phase transformation be the low strength phase that toughness is good.The shortcoming of the method is after part forming completes, and needs the extra several minutes that consumes to carry out aftertreatment tempering.Except above-mentioned traditional method, the normal method adopted is thermoforming " Local cooling method " now, by high tensile steel plate uniform austenitic and after completing thermoforming, by in quench cooled process, control the rate of cooling of different sites, realize Same Part different sites and there is different phase composite, and then obtain the object of different mechanical property, namely the position that rate of cooling is large generates the martensitic phase that intensity is high, hardness is large, the position that rate of cooling is little generates the soft phase that intensity is low, elongation is high, and this Principle of Process consults Fig. 1.But " Local cooling method " also Shortcomings part, namely in quenching process, requires higher (namely rate of cooling varies) to plate rate of cooling, needs to control accurately.Meanwhile, for making some position generate soft phase, need to reduce its rate of cooling, reduce rate of cooling and mean and extend manufacture cycle, this contradicts with the target of enhancing productivity in actual production.
Consult Fig. 1 and Fig. 2, most hot formed research of high-strength steel is all mainly for the degradation production of austenite phase in its process of cooling now, and ignores austenitic forming process.The present invention starts with from austenitic formation process, by applying different heating conditions to plate different sites, obtain different materials, such as: a part of plate is heated to lower than austenitic transition temperature, then this part maintains the original composition (non-austenitizing) of plate, the i.e. soft phase of the mixing of ferrite and pearlite, and another part is heated above austenitic transition temperature, austenite phase can be obtained, be shaped this plate quenching afterwards traditionally, just can not only be had the soft phase of mixing of ferrite and pearlite but also be there is the part of the hard phase of martensite.
Summary of the invention
Technical problem to be solved by this invention overcomes prior art only can realize the equally distributed problem of the mechanical property of materials, provides a kind of high-strength steel thermoforming area heating installation.
Following technical scheme is adopted to realize for solving the problems of the technologies described above the present invention: described high-strength steel thermoforming area heating installation comprises upper mechanism, lower mechanisms and heating arrangements.
Lower mechanisms comprises upper bolster pillar stiffener and lower base, lower mechanisms is connected with ground bolt by lower base, upper mechanism comprises upper bolster, on the upper surface of the upper bolster pillar stiffener that 4 structures that upper mechanism is arranged in lower mechanisms by upper bolster are identical, and adopting welding process to be fixedly connected with the lower surface of upper bolster by the upper surface of upper bolster pillar stiffener, heating arrangements is arranged on the ground on rear side of lower mechanisms.
Lower mechanisms described in technical scheme also includes lower heat-conducting plate, lower cooling block pedestal, lower cooling block that 6 structures are identical, thermopair that steady brace that 2 structures are identical is identical with 18 structures.The bottom of the upper bolster pillar stiffener that 4 structures are identical adopts welding process to be vertically fixed on the corner place of lower base symmetrically, lower cooling block pedestal is arranged on the upper surface of the lower base between the identical upper bolster pillar stiffener of 4 structures, welding process is adopted to connect between the two, it is stationary fit that the lower cooling block that 6 structures are identical is arranged in the identical through hole of 6 structures of lower cooling block pedestal upper end, lower heat-conducting plate is arranged on the top end face of lower cooling block pedestal, welding process is adopted to connect between the two, in the groove of the identical the installation of TC of 18 structures on lower heat-conducting plate, each thermopair adopts spot welding to be connected in the groove on lower heat-conducting plate, the steady brace that 2 structures are identical is arranged in the dowel hole of lower heat-conducting plate upper surface side, both are connected by welding.
Lower heat-conducting plate described in technical scheme is rectangular slab class formation part, the base area sum of the upper heat-conducting plate that its working area is identical with 6 structures is identical, thickness is identical with upper heat-conducting plate thickness, the red copper material of same employing good heat conductivity, lower heat-conducting plate upper surface equidistantly arranges the identical groove of 6 array structures symmetrically, in groove, thermopair is installed, the surrounding of lower heat-conducting plate be provided with arrange wire and the access opening is communicated with groove, lower heat-conducting plate side is evenly arranged the dowel hole of installation steady brace.
Upper mechanism described in technical scheme also includes the identical cylinder barrel of 12 structures, piston rod that 12 structures are identical, upper heat-conducting plate that upper cooling block that 6 structures are identical is identical with 6 structures.Upper bolster is the box typed structure part of the hollow of cuboid, the lower surface of upper bolster is provided with the identical circular hole of 12 structures, the circular hole that 12 structures are identical is divided into 6 row from left to right on the lower surface of upper bolster, often 2, row front and back, the upper end of the cylinder barrel that 12 structures are identical loads in the identical circular hole of 12 structures for being fixedly connected with, the piston rod that 12 structures are identical loads in the identical cylinder barrel of 12 structures for being slidably connected, the upper cooling block upper end that successively with 6 structures are identical from left to right, the lower end of the piston rod that 12 structures are identical adopts and is threaded, the bottom surface of the upper cooling block that 6 structures the are identical upper heat-conducting plate upper surface identical with 6 structures adopts welding process to connect.
Upper cooling block described in technical scheme is rectangular structure part, the top end face of upper cooling block is vertically arranged with the internal thread hole that 2 structures for connecting are identical, upper cooling block is vertically arranged with 4 manholes be parallel to each other and namely goes up cooling water channel, the upper cooling water channel of manhole formula divides two-layer layout, the diameter of upper cooling water channel is 40 ~ 60mm, the width between centers of every layer of adjacent two upper cooling water channel are 150 ~ 180mm, and the upper cooling water channel of levels in the vertical direction width between centers is 120 ~ 150mm.
Heating arrangements described in technical scheme comprises the identical hot-plate cover of 6 structures, hot-plate that 6 structures are identical, hot-plate support bar that 6 structures are identical, heating arrangements base slide block that 6 structures are identical, heating arrangements base back shroud that heating arrangements base is identical with 6 structures.The hot-plate cover that 6 structures are identical is positioned at the topmost of whole heating arrangements, the two ends, left and right of the upper surface of the hot-plate that the two ends, left and right of the cambered inner surface of the hot-plate cover that 6 structures are identical are identical with 6 structures successively contact and adopt and are welded to connect, the top end face of the hot-plate support bar that the cambered inner surface of the hot-plate cover that 6 structures are identical is identical with 6 structures is successively connected by welding, identical with 6 structures successively heating arrangements base slide block upper surface in the identical hot-plate support bar lower end of 6 structures adopts and is welded to connect, the heating arrangements base slide block that 6 structures are identical loads in the identical track of 6 structures on heating arrangements base for being slidably connected, the Track Rear that the heating arrangements base back shroud that 6 structures are identical is identical with the structure of 6 on heating arrangements base adopts and is welded to connect.
Heating arrangements base described in technical scheme is the plate structure part of rectangle, the upper surface of heating arrangements base is provided with the track of 6 cuboids that structure is identical, article 6, the track of the cuboid that structure is identical is processed with the groove slideway for installing the identical heating arrangements base slide block of 6 structures hot-plate support bar lower end identical with 6 structures that cross section is inverted T-shape, article 6, the front end of the groove slideway on the track of the cuboid that structure is identical is closed, article 6, the rear end of the groove slideway on the track of the cuboid that structure is identical is unlimited, the two ends, left and right of heating arrangements base are provided with the bolt hole for installing heating arrangements standing bolt.
Hot-plate described in technical scheme is rectangular flat-type structural part, the model that its lower surface is provided with the semicolumn bodily form be parallel to each other is the infrared heating pipe of HLS, heating tube radius is 15 ~ 20mm, 6 ~ 8 heating tubes arranged by each hot-plate, and in heating tube, spacing is in the heart 45 ~ 50mm.
Hot-plate described in technical scheme is positioned at directly over high-strength steel plate, keeps the vertical gap of 0.1m between the two.
Compared with prior art the invention has the beneficial effects as follows:
1. high-strength steel thermoforming area heating installation of the present invention achieves the good transition between each position that same steel plate has a different performance in thickness, mechanical property etc.
Traditional laser assembly solder plate can realize different sites on same plate and have the characteristic of different performance, but the existence of weld seam limits the plasticity of plate, thus reduces the complicacy of formation of parts shape.The discontinuous difficulty too increasing die design of the thickness of slab that different sheet thicknesses causes.The present invention designs thermoforming heating unit, heating unit can be made to produce different heat at different positions, extra process is not carried out for plate, due to reasons such as heat exchanges during heating, transitional region is there is in the middle of plate high-temperature zone (austenitizing) and cold zone (non-austenitizing), plate performance is seamlessly transitted, solves the problem that traditional tailor welded causes because of weld seam.
2. high-strength steel thermoforming area heating installation of the present invention does not need operation bidirectional and device, shortens the production cycle, improves productivity, simultaneously can save energy.
The present invention, by means of only adjustment thermoforming heat-processed, just reaches re-set target.With need to add in production line compared with extra operation (weld, rolling, tempering) now, reduce production process, reduce facility investment, enhance productivity, quality product is easy to control.Meanwhile, the present invention has given up traditional process furnace, and plate heating becomes and has more specific aim, is not needing the position of high temperature (austenitizing), is reducing its heat energy, avoids producing unnecessary heat exhaustion, so also there is the advantage of save energy.
3. high-strength steel thermoforming area heating installation of the present invention overcomes in thermoforming " Local cooling method " contradiction reducing rate of cooling and between enhancing productivity.
The present invention is directed to now commonplace " Local cooling method " for obtaining soft phase, have to reduce rate of cooling, this problem of production efficiency must be reduced, take the measure of starting with from heat-processed, just determine not assimilating of final drip molding composition when heating, can remain unchanged during cooling conventionally cools fast.So both solved above-mentioned contradiction, and also can directly use traditional hot stamping die, need not redesign mould.
4. high-strength steel thermoforming area heating installation of the present invention can realize producing in enormous quantities, also can regulate softening position on plate as required simultaneously.
The present invention devises six independent infrared thermal radiation hot-plates, can according to the demand of part mechanical property, regulate temperature and the firing order of infrared heating plate, thus regulate the position of martensite (firmly) phase and ferrite and pearlite mixing (soft) phase, consult Fig. 3, in figure: 1 is martensitic phase, 2 is ferrite and pearlite mixed phase, three kinds of different plate phase composition distribution situations can be realized, as: plate region intermediate is martensitic phase, two end regions are ferrite and pearlite mixed phase, or plate region intermediate is ferrite and pearlite mixed phase, two end regions are martensitic phase, or the left one side of something of plate is martensitic phase, right one side of something is ferrite and pearlite mixed phase.
5. high-strength steel thermoforming area heating installation of the present invention can realize the diversity of a certain specific region phase by the heating path controlling plate.
Consult Fig. 2, for a certain region of plate, if its Heating temperature is higher than Ac3, insulation for some time, the austenite phase that composition is single can be obtained; If its Heating temperature is lower than Ac1, then moiety is still plate original composition, i.e. ferrite and pearlite mixed phase; In heat-processed, phase composite composition, except being subject to Heating temperature impact, is also subject to the impact of soaking time.If Heating temperature is between Ac1 and Ac3, then moiety is the mixture of austenite, ferrite and pearlite phase, by regulating Heating temperature and soaking time, can change the relative proportion between each composition phase composition.
6. high-strength steel thermoforming area heating installation of the present invention considers the hot formed best forming temperature of high-strength steel.
Consult Fig. 4, after a part of plate is heated to austenitizing temperature, continue through infrared heating plate to irradiate its constant temperature, after making its complete uniform austenitic, withdraw from infrared heating plate, make the position of heat-conducting plate to austenitizing apply suitable pressure, cool fast, make it be cooled to about 650 DEG C, now the hardenability value of material reaches maximum value, and in this temperature range, the plasticity of plate is best.And another part plate during this period of time only heats, be heated to less than 720 DEG C a certain temperature (in this device being 650 DEG C), make its not austenitizing, maintain original ferrite and pearlite mixed phase.After the temperature of two portions plate all meets the demands, by this suitable shaping again can on demand intensity distribution plate take out, be put on traditional hot-forming die, be shaped, cooling, required thermoform can be obtained.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is the continuous cooling transformation graphic representation of existing thermoforming " Local cooling method " institute foundation;
Fig. 2 is the laser heating transformation curve figure of thermoforming " local heating technique " institute foundation;
Namely the different plate phase composition distribution situation schematic diagram of the first achieved by high-strength steel thermoforming area heating installation of the present invention of Fig. 3-a realizes plate region intermediate is martensitic phase, and two end regions are the situation of ferrite and pearlite mixed phase;
Namely Fig. 3-b the second achieved by high-strength steel thermoforming area heating installation of the present invention different plate phase composition distribution situation schematic diagram realizes plate region intermediate is ferrite and pearlite mixed phase, and two end regions are the situation of martensitic phase;
Namely Fig. 3-c the third different plate phase composition distribution situation schematic diagram achieved by high-strength steel thermoforming area heating installation of the present invention realizes plate left end region is martensitic phase, and right end region is the situation of ferrite and pearlite mixed phase;
Fig. 4 is the change trend curve figure of the hardenability value N of boron steel under existing differing temps;
Fig. 5 is the axonometric projection graph of the upper mechanism structure composition in high-strength steel thermoforming area heating installation of the present invention;
Fig. 6 is the axonometric projection graph of the lower mechanisms structure composition in high-strength steel thermoforming area heating installation of the present invention;
Fig. 7 is the axonometric projection graph of the heating arrangements structure composition in high-strength steel thermoforming area heating installation of the present invention;
Fig. 8 is the sectional view at A-A place in Fig. 7;
Fig. 9 is the schematic diagram of the thermopair distributing position on lower heat-conducting plate in high-strength steel thermoforming area heating installation of the present invention;
Figure 10 is the front view of high-strength steel thermoforming area heating installation structure of the present invention composition;
Figure 11 is the front view of the heating arrangements structure composition in high-strength steel thermoforming area heating installation of the present invention;
Figure 12 is the front view of single hot-plate and hot-plate cover in the heating arrangements of high-strength steel thermoforming area heating installation of the present invention;
Figure 13 is the sectional view at B-B place in Fig. 7;
Figure 14 is the axonometric projection graph of the first step operation of high-strength steel thermoforming area heating installation of the present invention for realizing plate in Fig. 3 and carrying out for distribution situation 1 mutually;
Figure 15 is the axonometric projection graph of second step operation of high-strength steel thermoforming area heating installation of the present invention for realizing plate in Fig. 3 and carrying out for distribution situation 1 mutually;
Figure 16 is the axonometric projection graph of the first step operation of high-strength steel thermoforming area heating installation of the present invention for realizing plate in Fig. 3 and carrying out for distribution situation 3 mutually;
Figure 17 is the axonometric projection graph of second step operation of high-strength steel thermoforming area heating installation of the present invention for realizing plate in Fig. 3 and carrying out for distribution situation 3 mutually;
Figure 18 is the axonometric projection graph of three step operation of high-strength steel thermoforming area heating installation of the present invention for realizing plate in Fig. 3 and carrying out for three kinds of distribution situations mutually;
In figure: 1. upper bolster, 2. upper bolster pillar stiffener, 3. cylinder barrel, 4. piston rod, 5. goes up cooling block, 6. goes up cooling water channel, 7. go up heat-conducting plate, 8. descend heat-conducting plate, 9. descend cooling block pedestal, 10. lower base standing bolt, 11. lower base, 12. times cooling blocks, 13. times cooling water channels, 14. steady braces, 15. high-strength steel plates, 16. hot-plate covers, 17. hot-plates, 18. hot-plate support bars, 19. heating arrangements base slide blocks, 20. heating arrangements bases, 21. heating arrangements standing bolts, 22. heating arrangements base back shrouds, 23. thermopairs.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained in detail:
High-strength steel thermoforming area heating installation of the present invention comprises upper mechanism, lower mechanisms and heating arrangements.
Consult Fig. 5, described upper mechanism includes the identical upper heat-conducting plate 7 of identical upper cooling block 5,6 structures of upper bolster 1,12 cylinder barrels that structure is identical 3,12 piston rods that structure is identical 4,6 structures; In other words, described upper mechanism includes upper bolster 1, A group punching press assembly, B group punching press assembly, C group punching press assembly, D group punching press assembly, E group punching press assembly and F group punching press assembly.
Upper bolster 1 is the box typed structure part of the hollow of cuboid, and the hydraulic power system controlling whole upper mechanism is equipped with in the inside of upper bolster 1, and is connected with external control system; (bottom surface) lower surface of upper bolster 1 is provided with the identical circular hole of 12 structures, the circular hole that 12 structures are identical is divided into 6 row from left to right on (bottom surface) lower surface of upper bolster 1, often 2, row front and back, the upper end of the cylinder barrel 3 that 12 structures are identical loads for being fixedly connected with in the identical circular hole of 12 structures, and the piston rod 4 that 12 structures are identical loads in the identical cylinder barrel 3 of 12 structures for being slidably connected.
Cylinder barrel 3 is hollow cylindrical body, and piston rod 4 can be made therein to move up and down.And cylinder barrel 3 identical for 12 structures is divided into 6 groups, be also called A group cylinder barrel, B group cylinder barrel, C group cylinder barrel, D group cylinder barrel, E group cylinder barrel, F group cylinder barrel from left to right respectively, often organize cylinder barrel and comprise the identical cylinder barrel 3 of 2, front and back structure.
Piston rod 4 is bar type structure, and its upper end loads in cylinder cylinder 3, for bearing hydraulic coupling; Piston rod 4 lower end is provided with outside screw, and piston rod 4 is connected with upper cooling block 5 by the outside screw of its lower end, and piston rod 4 drives upper cooling block 5 to move up and down.And piston rod 4 identical for 12 structures is divided into 6 groups, be also called A group piston rod, B group piston rod, C group piston rod, D group piston rod, E group piston rod, F group piston rod from left to right respectively, often organize piston rod and comprise the identical piston rod 4 of 2, front and back structure.
Upper cooling block 5 is rectangular structure part, the top end face of upper cooling block 5 is vertically arranged with the internal thread hole that 2 structures for connecting are identical, namely 4 manholes be parallel to each other that are vertically arranged with along upper cooling block 5 go up cooling water channel 6, transmit by upper heat-conducting plate 7 heat come for ensureing that cooling water channel can absorb quickly and evenly, upper cooling water channel 6 points of two-layer layouts of manhole formula, in embodiment, the diameter of upper cooling water channel 6 is 40mm ~ 60, the width between centers of every layer of adjacent two upper cooling water channel 6 is 150 ~ 180mm, on, in lower floor, cooling water channel 6 is 120 ~ 150mm in thickness (vertically) direction width between centers.And upper cooling block 5 identical for 6 structures is divided into 6 groups, be also called cooling block in cooling block in A group, the upper cooling block of B, the upper cooling block of C, the upper cooling block of D, the upper cooling block of E and F group from left to right respectively.
Upper heat-conducting plate 7 is rectangular plate structure part, its length, width are identical with the length of upper cooling block 5, width respectively, be used for transmitting high-temp and high-strength steel plate material 15 applied pressure, upper heat-conducting plate 7 adopts the red copper material of good heat conductivity, and the heat of high-temp and high-strength steel plate material 15 can be passed to upper cooling block 5 by upper heat-conducting plate 7 fast.Upper heat-conducting plate 7 identical for 6 structures is divided into 6 groups, is also called in heat-conducting plate in A group, B group in heat-conducting plate, C group in heat-conducting plate, D group in heat-conducting plate, E group heat-conducting plate on heat-conducting plate and F group from left to right respectively.
The combination of cylinder barrel 3, piston rod 4, upper cooling block 5, upper heat-conducting plate 7 is defined as punching press assembly, be divided into 6 groups equally, be also called A group punching press assembly, B group punching press assembly, C group punching press assembly, D group punching press assembly, E group punching press assembly and F group punching press assembly from left to right respectively.
Upper bolster 1 is positioned at the topmost of whole high-strength steel thermoforming area heating installation, the bottom surface of upper bolster 1 adopts welding process to be connected with between the external cylindrical surface of the cylinder barrel 3 loaded in circular hole, the upper end of the piston rod 4 that 12 structures are identical loads in the identical cylinder barrel 3 of 12 structures, can slide up and down, the lower end of the piston rod 4 that 12 structures the are identical upper cooling block 5 upper end blind hole identical with 6 structures adopts and is threaded, and the bottom surface of the upper cooling block 5 that 6 structures are identical upper heat-conducting plate 7 upper surface identical with 6 structures contacts and adopt welding process to connect.
Consult Fig. 6 and Fig. 9, described lower mechanisms includes the identical upper bolster pillar stiffener 2 of 4 structures, lower heat-conducting plate 8, lower base standing bolt 10 that lower cooling block pedestal 9,6 structures are identical, lower cooling block 12,2 steady braces that structure is identical 14,18 thermopairs that structure is identical 23 that lower base 11,6 structures are identical.
Upper bolster pillar stiffener 2 is cylinder structural part, the bottom of the upper bolster pillar stiffener 2 that 4 structures are identical adopts welding process to be vertically fixed on the corner place of lower base 11 symmetrically, upper mechanism is flatly arranged on the top end face of the identical upper bolster pillar stiffener 2 of 4 structures by the bottom face at upper bolster 1 four jiaos of places, welding process is adopted to be connected between the top of the upper bolster pillar stiffener 2 that 4 structures are identical and the bottom face at upper bolster 1 four jiaos of places, the symmetry centre conllinear of upper bolster 1 and lower base 11, thus, the identical upper bolster pillar stiffener 2 of 4 structures is for supporting whole upper mechanism.Lower cooling block pedestal 9 is arranged on the upper surface of the lower base 11 between the identical upper bolster pillar stiffener 2 of 4 structures, welding process is adopted to connect between the two, it is stationary fit that the lower cooling block 12 that 6 structures are identical is arranged in the identical through hole of 6 structures of lower cooling block pedestal 9 upper end, lower heat-conducting plate 8 is arranged on the top end face of lower cooling block pedestal 9, welding process is adopted to connect between the two, the thermopair 23 that 18 structures are identical is arranged in the groove on lower heat-conducting plate 8, in the groove that each thermopair 23 adopts spot welding to be connected on lower heat-conducting plate 8.
Consult Fig. 9, lower heat-conducting plate 8 is rectangular slab class formation part, the upper heat-conducting plate 7 bottom surface total area that its working area is identical with 6 structures is identical, thickness is identical with upper heat-conducting plate 7 thickness, the red copper material of same employing good heat conductivity, the heat of high-temp and high-strength steel plate material 15 is passed to fast the lower cooling block 12 that 6 structures in lower cooling block pedestal 9 are identical, lower heat-conducting plate 8 upper surface equidistantly arranges 6 row grooves (often row 3) symmetrically with 300mm, is provided with thermopair 23 in groove.The surrounding of lower heat-conducting plate 8 be provided with arrange wire and the access opening be communicated with groove, wire is adopted to connect thermopair 23 and external control system, guarantee that the metrical information Real-time Feedback of thermopair is to external control system, lower heat-conducting plate 8 side is evenly arranged the dowel hole installing steady brace 14.
Lower cooling block pedestal 9 is rectangular parallelepiped formula structural part, the through hole of even equidistant placement 6 rectangular shapes in middle part, for fixedly mounting lower cooling block 12, be not communicated with between through hole with through hole, reduce the heat transmission between adjacent lower cooling block 12 as few as possible, and the whole area on the lower upper and lower surface of cooling block pedestal 9 and the area equation of lower base 11 upper surface.
Lower base standing bolt 10 in embodiment is the wall screw of Ф 30.
Lower base 11 is rectangular parallelepiped formula cast structure part, and every side, the left and right sides, its underpart equidistant placement 3 bolts hole, for installing lower base standing bolt 10.
Lower cooling block 12 except on top end face without internal thread hole, left and right width respectively outer than the few 20mm of upper cooling block 5 (the few 40mm of whole width) outward, other scantlings of the structure is identical with upper cooling block 5.Namely 4 manholes be parallel to each other that are vertically arranged with along lower cooling block 12 descend cooling water channel 13, transmit by lower heat-conducting plate 8 heat come for ensureing that cooling water channel can absorb quickly and evenly, circular lower cooling water channel 13 points of two-layer layouts, in embodiment, the diameter of lower cooling water channel 13 is 40 ~ 60mm, the width between centers of every layer of adjacent two upper cooling water channel 6 is 150 ~ 180mm, and under upper and lower layer, cooling water channel 13 is 120 ~ 150mm in thickness (vertically) direction width between centers.And lower cooling block 12 identical for 6 structures is divided into 6 groups, to be called under cooling block under A group, the lower cooling block of B group, the lower cooling block of C group, the lower cooling block of D group, E group cooling block under cooling block and F group from left to right.Under the lower cooling block of the lower cooling block of A group, B group, the lower cooling block of C group, D group, under cooling block, E group, under cooling block and F group, cooling block to lay respectively in cooling block in A group, B group in cooling block, C group in cooling block, D group in cooling block, E group in cooling block, F group immediately below cooling block.
Steady brace 14 is small cylinder formula structural part, and steady brace 14 lower end is inserted in the dowel hole of lower heat-conducting plate 8 side, and the upper surface of steady brace 14 exceeds lower heat-conducting plate 8 upper surface 5mm, for positioning one end of high-strength steel plate 15.
Thermopair 23 adopt model be WRNG-430's or model be the thermopair of WRN2G-430, for the real time temperature of high-strength steel plate 15 lower surface of high temperature in measuring apparatus.
Lower heat-conducting plate 8 is positioned at immediately below the identical upper heat-conducting plate 7 of 6 structures, and is in separate stage both when not working.Each thermopair 23 is arranged in the groove of lower heat-conducting plate 8 upper surface successively, and each thermopair 23 is connected in the groove on lower heat-conducting plate 8 by spot welding.The steady brace 14 that 2 structures are identical is arranged in the dowel hole of lower heat-conducting plate 8 upper surface side, and both are connected by welding.The lower surface of lower heat-conducting plate 8 contacts with lower cooling block pedestal 9 upper surface and adopts welding process to be connected, and the lower cooling block 12 that 6 structures are identical is arranged in the through hole of the rectangular shape in the middle part of lower cooling block pedestal 9, and is assembled by shrink-fit.Lower cooling block pedestal 9 lower surface contacts with lower base 11 upper surface and adopts welding process to be connected.Lower base 11 adopts the lower base standing bolt 10 of 6 Ф 30 to be connected with ground.The upper bolster pillar stiffener 2 that 4 structures are identical is positioned at the corner place of lower base 11, the lower surface of the upper bolster pillar stiffener 2 that 4 structures are identical is connected with the upper surface of lower base 11 by welding, and the upper surface of the upper bolster pillar stiffener 2 that 4 structures are identical is connected with the lower surface of upper bolster 1 by welding.
Consult Fig. 7, described heating arrangements comprises the identical heating arrangements base slide block 19 of identical hot-plate support bar 18,6 structures of identical hot-plate cover 16,6 hot-plates that structure is identical 17,6 structures of 6 structures, heating arrangements base back shroud 22 that heating arrangements standing bolt 21,6 structures that heating arrangements base 20,6 structures are identical are identical.
Heating arrangements is arranged on the ground on rear side of lower mechanisms, when the hot-plate support bar 18 that 6 structures in heating arrangements are identical moves forward, the hot-plate 17 that the hot-plate cover 16 that 6 structures can be made identical is identical with 6 structures reaches directly over the lower heat-conducting plate 8 between the identical upper bolster pillar stiffener 2 of 4 structures in lower mechanisms, do not come in contact with high-strength steel plate 15 when high-strength steel plate 15 is heated, between hot-plate 17 and high-strength steel plate 15, keep the vertical gap of 0.1m.
Consult Figure 12, described hot-plate cover 16 is arch sheet class formation part, hot-plate cover 16 identical for 6 structures is divided into 6 groups, is called A group hot-plate cover, B group hot-plate cover, C group hot-plate cover, D group hot-plate cover, E group hot-plate cover and F group hot-plate cover from left to right.
Described hot-plate 17 is rectangular plate structure part, the model that its lower surface is provided with the semicolumn bodily form that one deck is parallel to each other is the infrared heating pipe of HLS, heating tube radius is 15 ~ 20mm, and 6 ~ 8 heating tubes arranged by each hot-plate 17, and in heating tube, spacing is in the heart 45 ~ 50mm.Hot-plate 17 identical for 6 structures is divided into 6 groups, is called A group hot-plate, B group hot-plate, C group hot-plate, D group hot-plate, E group hot-plate and F group hot-plate from left to right.
Hot-plate support bar 18 is Curved circular uniform cross section circular tube structure part, the right-hand member on the top of hot-plate support bar 18 and the medial surface on hot-plate cover 16 top are welded to connect, and the bottom of the bottom of hot-plate support bar 18 is connected to the heating arrangements base slide block 19 of a rectangular structure.Hot-plate support bar 18 identical for 6 structures is divided into 6 groups, is called A group hot-plate support bar, B group hot-plate support bar, C group hot-plate support bar, D group hot-plate support bar, E group hot-plate support bar and F group hot-plate support bar from left to right.
Consult Figure 13, heating arrangements base slide block 19 is cuboid structural part, and heating arrangements base slide block 19 is positioned at the lower end of hot-plate support bar 18, for horizontally slipping in the track on heating arrangements base 20.
Consult Figure 11, the combination of hot-plate cover 16, hot-plate 17, hot-plate support bar 18, heating arrangements base slide block 19 is defined as heating assembly, so described heating arrangements comprises 6 groups of heating assemblies i.e. A group heating assembly, B group heating assembly, C group heating assembly from left to right, D group heats assembly, E group heats assembly, F group heats the identical heating arrangements base back shroud 22 of identical heating arrangements standing bolt 21,6 structures of assembly and heating arrangements base 20,6 structures.
Consult Fig. 7 and Fig. 8, heating arrangements base 20 is the tabular class formation part of rectangle, the upper surface of heating arrangements base 20 is provided with 6 and is processed with the track that cross section is the cuboid of the groove of inverted T-shape thereon, the two ends of groove are closed, and 1 end of groove adopts heating arrangements base back shroud 22 to close.
Heating arrangements standing bolt 21 is the wall screw of Ф 20.
Heating arrangements base back shroud 22 is plate-type structural piece, is positioned at heating arrangements base 20 rear portion, and its surface is perpendicular with ground.
The hot-plate cover 16 that 6 structures are identical is positioned at the topmost of whole heating arrangements, and front and back (left and right) two ends of the upper surface of the hot-plate 17 that front and back (left and right) two ends of the cambered inner surface of the hot-plate cover 16 that 6 structures are identical are identical with 6 structures contact and adopt and are welded to connect.Hot-plate support bar 18 top end face that identical hot-plate cover 16 cambered inner surface of 6 structures is identical with 6 structures is connected by welding.Identical hot-plate support bar 18 lower end of 6 structures heating arrangements base slide block 19 upper surface identical with 6 structures welds, the heating arrangements base slide block 19 that 6 structures are identical is loaded in the identical track of 6 structures on heating arrangements base 20 for being slidably connected, the Track Rear that the heating arrangements base back shroud 22 that 6 structures are identical is identical with 6 structures that 1 end on heating arrangements base 20 opens wide is connected by welding, ensures that heating arrangements base slide block 19 is enclosed in the identical track of 6 structures on heating arrangements base 20.Adopt heating arrangements standing bolt 21 to be fixed on the ground at lower mechanisms rear by whole heating arrangements, wherein, heating arrangements base 20 is coplanar with the lateral symmetry face of the lower base (11) in lower mechanisms.
Wherein go up heat-conducting plate 7 and lower heat-conducting plate 8 adopts red copper material, red copper material is easy to obtain, and heat-conduction coefficient is very large, and is still in solid state shape 900 DEG C time, hot-plate 17 is models of the employing semicolumn bodily form is the infrared heating pipe of HLS, and other part all adopts 4Cr5MoSiV material.
The working process of high-strength steel thermoforming area heating installation of the present invention:
Embodiment 1
Consult 3-a, Figure 14, Figure 15 and Figure 18, realizing plate region intermediate is martensitic phase, and two end regions are the situation of ferrite and pearlite mixed phase; Employing dimensions is the material of 2000mm × 600mm × 1.5mm is that the high-strength steel plate 15 of 22MnB5 is as operand, high-strength steel plate 15 is processed as three regions in length (i.e. 2000mm) direction, martensitic phase region (long 1000mm) is processed as by centre, two ends are ferrite and pearlite mixed phase region (long 500mm), ensure that whole plate all reaches 650 DEG C before forming.
Step is as follows:
1. the material utilizing cutting machine well cutting 1 block specifications to be of a size of 2000mm × 600mm × 1.5mm is the high-strength steel plate 15 of 22MnB5;
2. by mechanism, the high-strength steel plate 15 of well cutting is placed on the upper surface of lower heat-conducting plate 8 of lower mechanisms, and utilize steady brace 14 pairs of high-strength steel plates 15 to position, contact rear thermopair 23 with high-strength steel plate 15 and start measuring tempeature, thermal signal is converted to electrical signal, by peripheral equipment Real Time Observation high-strength steel plate 15 temperature variation;
3. open the trip switch of heating arrangements, make C group heat assembly, D group heating assembly moves forward with the speed of 0.5m/s, stop after mobile 1000mm, now C group heating assembly, D group heat C group hot-plate in assembly, D group hot-plate by immediately below lower heat-conducting plate 8 on correspondence position cover completely but do not come in contact with high-strength steel plate 15, the vertical gap of 0.1m should be kept between the two;
4. make C group heat assembly, D group group heating assembly heats in the middle part of high-strength steel plate 15, keep constant temperature after being heated to 900 DEG C, make complete austenitizing in the middle part of high-strength steel plate 15;
5. make C group heat assembly, D group heating assembly moves backward with the speed of 0.5m/s, stop after mobile 1000mm; During this period of time, punching press assembly C, D group moves downward with the speed of 0.5m/s, until it contacts with high-strength steel plate 15 upper surface, and it is applied to the pressure of 10MPa; Simultaneously, A group heating assembly, B group heating assembly, E group heating assembly, F group heating assembly move forward with the speed of 0.5m/s, stop after mobile 1000mm, now A group heating assembly, B group heating assembly, E group heating assembly, F group heat A group hot-plate, B group hot-plate, E group hot-plate and F group hot-plate in assembly by immediately below lower heat-conducting plate 8 on correspondence position cover completely but do not come in contact with lower heat-conducting plate 8, the vertical gap of maintenance 0.1m;
6. make A group heat assembly, B group heating assembly, E group heating assembly, F group heating assembly heats high-strength steel plate 15 both sides, constant temperature is kept after being heated to 650 DEG C, meanwhile, open be provided with cooling water channel 6 C group on cooling block, cooling block and be provided with the lower cooling block of C group of lower cooling water channel 13 in D group, the switch of the lower cooling block of D group, cool fast in the middle part of high-strength steel plate 15, by regulate be provided with upper cooling water channel 6 C group on cooling block, in D group, cooling block and adjustment are provided with the lower cooling block of C group of lower cooling water channel 13, the flow velocity of liquid stream in the lower cooling block of D group, ensure when high-strength steel plate 15 both sides reach 650 DEG C, also 650 DEG C are reached in the middle part of high-strength steel plate 15, namely whole high-strength steel plate 15 is all approximately 650 ± 10 DEG C,
7.A group heating assembly, B group heating assembly, E group heating assembly, F group heating assembly move backward with the speed of 0.5m/s, stop after mobile 1000mm, meanwhile, cooling block switch under closing cooling block in the upper cooling block of the C group being provided with cooling water channel 6, D group and being provided with the C group time cooling block of lower cooling water channel 13, D group, C group punching press assembly, D group punching press assembly move upward with the speed of 0.5m/s, move it starting position, cut off the signal that thermopair 23 transmits, thermopair 23 thermometric terminates simultaneously;
8. close the trip switch of heating arrangements, by the high-strength steel plate 15 of mechanism clamping high temperature, fast transfer is in press tool, moved downward by pressing machine, driven mold closes up, high-strength steel plate 15 fast ram is shaped, and heat-insulation pressure keeping obtains final thermoforming splicing part.
Embodiment 2
Consult 3-c, Figure 16, Figure 17 and Figure 18, realizing the left one side of something of plate is martensitic phase, and right one side of something is the situation of ferrite and pearlite mixed phase; Employing dimensions is the material of 2000mm × 600mm × 1.5mm is that the high-strength steel plate 15 of 22MnB5 is as operand, high-strength steel plate 15 is processed as two regions in length (i.e. 2000mm) direction, the left side is martensitic phase region (long 1000mm), the right is ferrite and pearlite mixed phase region (long 1000mm), ensures that whole plate all reaches 650 DEG C before forming.
This working process comprises the following steps:
1. utilize material that cutting machine well cutting 1 piece of dimensions is 2000mm × 600mm × 1.5mm to be the high-strength steel plate 15 of 22MnB5;
2. by mechanism, the high-strength steel plate 15 of well cutting is placed on the upper surface of lower heat-conducting plate 8 of lower mechanisms, and utilize steady brace 14 to position it, contact rear thermopair 23 with high-strength steel plate 15 and start measuring tempeature, thermal signal is converted to electrical signal, by peripheral equipment Real Time Observation high-strength steel plate 15 temperature variation;
3. open the trip switch of heating arrangements, A group heating assembly, B group heating assembly, C group heating assembly are moved forward with the speed of 0.5m/s, stop after mobile 1000mm, correspondence position on lower heat-conducting plate 8 covers by hot-plate 17 in now A group heating assembly, B group heating assembly, C group heating assembly completely, but do not come in contact with lower heat-conducting plate 8, keep the vertical gap of 0.1m;
4. make A group heating assembly, B group heating assembly, C group heating assembly heat on the left of high-strength steel plate 15, keep constant temperature after being heated to 900 DEG C, make complete austenitizing on the left of high-strength steel plate 15;
5. make A group heating assembly, B group heating assembly, C group heating assembly move backward with the speed of 0.5m/s, stop after mobile 1000mm; During this period of time, A group punching press assembly, B group punching press assembly, C group punching press assembly move downward with the speed of 0.5m/s, until it contacts with high-strength steel plate 15 upper surface, and it are applied to the pressure of 10MPa; Simultaneously, D group heating assembly, E group heating assembly, F group heating assembly move forward with the speed of 0.5m/s, stop after mobile 1000mm, correspondence position on the right side of lower heat-conducting plate 8 covers but does not come in contact with high-strength steel plate 15 by the hot-plate 17 of now D group heating assembly, E group heating assembly, F group heating assembly completely, should keep the vertical gap of 0.1m between the two;
6. make D group heat assembly, E group heating assembly, F group heating assembly heats on the right side of high-strength steel plate 15, constant temperature is kept after being heated to 650 DEG C, meanwhile, open be provided with cooling water channel 6 A group on cooling block, cooling block in B group, cooling block and be provided with the lower cooling block of A group of lower cooling water channel 13 in C group, the lower cooling block of B group, the lower cooling block switch of C group, cool fast on the left of high-strength steel plate 15, by regulate be provided with upper cooling water channel 6 A group on cooling block, cooling block in B group, cooling block and be provided with the lower cooling block of A group of lower cooling water channel 13 in C group, the lower cooling block of B group, the flow velocity of liquid stream in the lower cooling block of C group, ensure when reaching 650 DEG C on the right side of high-strength steel plate 15, also 650 DEG C are reached on the left of high-strength steel plate 15, namely whole high-strength steel plate 15 is all 650 ± 10 DEG C,
7.D group heating assembly, E group heating assembly, F group heating assembly move backward with the speed of 0.5m/s, stop after mobile 1000mm, meanwhile, the A group of to close in the upper cooling block of the A group being provided with cooling water channel 6, B group cooling block in cooling block, C group and being provided with lower cooling water channel 13 is cooling block, C group cooling block switch down under cooling block, B group down, A group punching press assembly, B group punching press assembly, C group punching press assembly move upward with the speed of 0.5m/s, move it starting position, cut off the signal that thermopair 23 transmits, thermopair 23 thermometric terminates simultaneously;
8. close the trip switch of heating arrangements, by the high-strength steel plate 15 of mechanism clamping high temperature, fast transfer is in press tool, moved downward by pressing machine, driven mold closes up, high-strength steel plate 15 fast ram is shaped, and heat-insulation pressure keeping obtains final thermoforming splicing part.
The pressure wherein applying 10MPa in above-mentioned two embodiments in step 5 is to eliminate the upper heat-conducting plate 7 in high-strength steel plate 15 upper and lower surface and each punching press assembly and the gap between lower heat-conducting plate 8 surface, accelerates thermal conduction.In whole step, the heat of high-strength steel plate 15 passes to the upper cooling block 5 in each punching press assembly by the upper heat-conducting plate 7 in each punching press assembly rapidly, passed to each lower cooling block 12 in lower cooling block pedestal 9 by lower heat-conducting plate 8, heat is absorbed by the recirculated cooling water in the upper cooling water channel 6 in the upper cooling block 5 in each punching press assembly, the lower cooling water channel 13 in lower cooling block 12 rapidly to be taken away.
Claims (8)
1. a high-strength steel thermoforming area heating installation, is characterized in that, described high-strength steel thermoforming area heating installation comprises upper mechanism, lower mechanisms and heating arrangements;
Lower mechanisms comprises upper bolster pillar stiffener (2) and lower base (11), lower mechanisms is connected with ground bolt by lower base (11), upper mechanism comprises upper bolster (1), on the upper surface of the upper bolster pillar stiffener (2) that 4 structures that upper mechanism is arranged in lower mechanisms by upper bolster (1) are identical, and adopting welding process to be fixedly connected with by the lower surface of the upper surface of upper bolster pillar stiffener (2) with upper bolster (1), heating arrangements is arranged on the ground on rear side of lower mechanisms;
Described heating arrangements comprises the identical hot-plate cover (16) of 6 structures, hot-plate (17) that 6 structures are identical, hot-plate support bar (18) that 6 structures are identical, heating arrangements base slide block (19) that 6 structures are identical, heating arrangements base back shroud (22) that heating arrangements base (20) is identical with 6 structures;
The hot-plate cover (16) that 6 structures are identical is positioned at the topmost of whole heating arrangements, the two ends, left and right of the upper surface of the hot-plate (17) that the two ends, left and right of the cambered inner surface of the hot-plate cover (16) that 6 structures are identical are identical with 6 structures successively contact and adopt and are welded to connect, the top end face of the hot-plate support bar (18) that the cambered inner surface of the hot-plate cover (16) that 6 structures are identical is identical with 6 structures is successively connected by welding, identical with 6 structures successively heating arrangements base slide block (19) upper surface in identical hot-plate support bar (18) lower end of 6 structures adopts and is welded to connect, the heating arrangements base slide block (19) that 6 structures are identical loads in the identical track of 6 structures on heating arrangements base (20) for being slidably connected, the Track Rear that the heating arrangements base back shroud (22) that 6 structures are identical is identical with 6 structures on heating arrangements base (20) adopts and is welded to connect.
2. according to high-strength steel thermoforming area heating installation according to claim 1, it is characterized in that, described lower mechanisms also includes lower heat-conducting plate (8), lower cooling block pedestal (9), lower cooling block (12) that 6 structures are identical, thermopair (23) that steady brace (14) that 2 structures are identical is identical with 18 structures;
The bottom of the upper bolster pillar stiffener (2) that 4 structures are identical adopts welding process to be vertically fixed on the corner place of lower base (11) symmetrically, lower cooling block pedestal (9) is arranged on the upper surface of the lower base (11) between the identical upper bolster pillar stiffener (2) of 4 structures, welding process is adopted to connect between the two, it is stationary fit that the lower cooling block (12) that 6 structures are identical is arranged in the identical through hole of 6 structures of lower cooling block pedestal (9) upper end, lower heat-conducting plate (8) is arranged on the top end face of lower cooling block pedestal (9), welding process is adopted to connect between the two, the thermopair (23) that 18 structures are identical is arranged in the groove on lower heat-conducting plate (8), each thermopair (23) adopts spot welding to be connected in the groove on lower heat-conducting plate (8), the steady brace (14) that 2 structures are identical is arranged in the dowel hole of lower heat-conducting plate (8) upper surface side, both are connected by welding.
3. according to high-strength steel thermoforming area heating installation according to claim 2, it is characterized in that, described lower heat-conducting plate (8) is rectangular slab class formation part, the base area sum of the upper heat-conducting plate (7) that its working area is identical with 6 structures is identical, thickness is identical with upper heat-conducting plate (7) thickness, the red copper material of same employing good heat conductivity, lower heat-conducting plate (8) upper surface equidistantly arranges the identical groove of 6 array structures symmetrically, thermopair (23) is installed in groove, the surrounding of lower heat-conducting plate (8) be provided with arrange wire and the access opening be communicated with groove, lower heat-conducting plate (8) side is evenly arranged the dowel hole of installation steady brace (14).
4. according to high-strength steel thermoforming area heating installation according to claim 1, it is characterized in that, described upper mechanism also includes the identical cylinder barrel (3) of 12 structures, piston rod (4) that 12 structures are identical, upper heat-conducting plate (7) that upper cooling block (5) that 6 structures are identical is identical with 6 structures;
The box typed structure part of the hollow that upper bolster (1) is cuboid, the lower surface of upper bolster (1) is provided with the identical circular hole of 12 structures, the circular hole that 12 structures are identical is divided into 6 row from left to right on the lower surface of upper bolster (1), often 2, row front and back, the upper end of the cylinder barrel (3) that 12 structures are identical loads in the identical circular hole of 12 structures for being fixedly connected with, the piston rod (4) that 12 structures are identical loads in the identical cylinder barrel (3) of 12 structures for being slidably connected, upper cooling block (5) upper end that successively with 6 structures are identical from left to right, the lower end of the piston rod (4) that 12 structures are identical adopts and is threaded, the bottom surface of the upper cooling block (5) that 6 structures are identical upper heat-conducting plate (7) upper surface identical with 6 structures adopts welding process to connect.
5. according to high-strength steel thermoforming area heating installation according to claim 4, it is characterized in that, described upper cooling block (5) is rectangular structure part, the top end face of upper cooling block (5) is vertically arranged with the internal thread hole that 2 structures for connecting are identical, upper cooling block (5) is vertically arranged with 4 manholes be parallel to each other and namely goes up cooling water channel (6), upper cooling water channel (6) point two-layer layout of manhole formula, the diameter of upper cooling water channel (6) is 40 ~ 60mm, the width between centers of every layer of adjacent two upper cooling water channel (6) is 150 ~ 180mm, the upper cooling water channel (6) of levels in the vertical direction width between centers is 120 ~ 150mm.
6. according to high-strength steel thermoforming area heating installation according to claim 1, it is characterized in that, the plate structure part that described heating arrangements base (20) is rectangle, the upper surface of heating arrangements base (20) is provided with the track of 6 cuboids that structure is identical, article 6, the track of the cuboid that structure is identical is processed with the groove slideway for installing the identical heating arrangements base slide block (19) of 6 structures hot-plate support bar (18) lower end identical with 6 structures that cross section is inverted T-shape, article 6, the front end of the groove slideway on the track of the cuboid that structure is identical is closed, article 6, the rear end of the groove slideway on the track of the cuboid that structure is identical is unlimited, the two ends, left and right of heating arrangements base (20) are provided with the bolt hole for installing heating arrangements standing bolt (21).
7. according to high-strength steel thermoforming area heating installation according to claim 1, it is characterized in that, described hot-plate (17) is rectangular flat-type structural part, the model that its lower surface is provided with the semicolumn bodily form be parallel to each other is the infrared heating pipe of HLS, heating tube radius is 15 ~ 20mm, upper layout 6 ~ 8 heating tubes of each hot-plate (17), the between centers of adjacent two heating tubes is 45 ~ 50mm.
8. according to high-strength steel thermoforming area heating installation according to claim 1, it is characterized in that, described hot-plate (17) is positioned at directly over high-strength steel plate (15), keeps the vertical gap of 0.1m between the two.
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| TW201639698A (en) * | 2015-05-01 | 2016-11-16 | Metal Ind Res &Development Ct | Method for forming stamping member with a plurality of strengths and hot stamping forming apparatus therefor |
| DE102015113407B4 (en) | 2015-08-13 | 2018-01-11 | Ebner Industrieofenbau Gmbh | Furnace apparatus for heat treating a metal board |
| US10385416B2 (en) * | 2017-03-21 | 2019-08-20 | Ford Global Technologies, Llc | Rapid local annealing of high strength steel |
| DE102017128574B3 (en) * | 2017-12-01 | 2019-03-14 | Ebner Industrieofenbau Gmbh | Temperature control unit for a furnace device for heat treating a circuit board |
| CN108043971B (en) * | 2017-12-08 | 2019-05-17 | 吉林大学 | A kind of hot press-formed method for rapidly and efficiently realizing high-strength steel part capability gradient distribution |
| CN108246896B (en) * | 2018-03-21 | 2023-05-05 | 吉林大学 | Gradient heating device for high-strength steel thermoforming and heating method thereof |
| CN112048608B (en) * | 2020-09-07 | 2021-07-06 | 江苏君安新材料科技有限公司 | Local heating device for hot forming of high-strength steel plate for steel production |
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