CN103753162A - Roll bending forming device and forming method for ten-hole micro-channel flat tubes - Google Patents
Roll bending forming device and forming method for ten-hole micro-channel flat tubes Download PDFInfo
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- CN103753162A CN103753162A CN201410021043.8A CN201410021043A CN103753162A CN 103753162 A CN103753162 A CN 103753162A CN 201410021043 A CN201410021043 A CN 201410021043A CN 103753162 A CN103753162 A CN 103753162A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- Bending Of Plates, Rods, And Pipes (AREA)
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Abstract
The invention discloses a roll bending forming device for ten-hole micro-channel flat tubes. The roll bending forming device comprises an uncoiling machine, a straightening machine and a roll bending forming unit which are sequentially arranged. The roll bending forming unit comprises an upper row of mill rolls, a lower row of mill rolls, a brazing flux coating device and a product straightening device, multi-pass roll bending forming roll pairs are sequentially configured to form the upper row of mill rolls and the lower row of mill rolls, the brazing flux coating device and the product straightening device are arranged among the roll bending forming roll pairs, gaps are reserved between the upper row of mill rolls and the lower row of mill rolls, and the shapes and the sizes of the gaps are matched with the shapes and the sizes of the ten-hole micro-channel flat tubes. The invention further discloses a forming method implemented by the forming device. The roll bending forming device and the forming method have the advantages that precision dies can be omitted, a series of problems caused during continuous extrusion can be solved, and the manufactured flat tubes are stable in quality; the extrusion speed normally ranges from 2 meters per minute to 3 meters per minute when ten-hole micro-channel flat tubes are manufactured in an extrusion mode, but the roll bending technological manufacturing speed is higher than 80 meters per minute, and the manufacturing efficiency can be improved by 20 times as compared with the traditional extrusion mode; additional welding techniques are omitted in roll bending forming procedures, and integral heat exchangers can be manufactured only by the aid of a brazing technique.
Description
Technical field
The present invention relates to for processing manufacture method and the equipment technical field of micro-channel flat for heat exchange, specifically, what relate to is a kind of roll forming device and manufacturing process of ten hole micro-channel flat.
Background technology
The air-condition heat exchanger that heating ventilation refrigeration industry is used, what use traditionally is bronzing pipe or efficient riffled tube and the outer fin aluminum pipe of circle.Due to the restriction to freon refrigerant, condenser, the evaporimeter of current air conditioning for automobiles, the pipe sheet type structure that no longer adopts copper pipe aluminium foil to manufacture, nearly all automobile all adopts aluminum cocurrent flow type condenser and laminated evaporator, they have advantages of lightweight, heat exchange performance good.Parallel flow heat exchanger, adopts porous micro channel flat tube, and its channel size is in 0.5mm left and right, and the quantity of microchannel is more, size is less, and its anti-burst ability is stronger, exchange capability of heat better.
Produce at present the mode that air-conditioning antipriming pipe mainly adopts aluminum product hot extrusion, continuously extruded technology is that employing pole aluminium is blank, microflute along squeegee roller is sent into pinch roller, frictional force by microflute both sides is brought blank into die cavity, because friction heats up, is out of shape, produce Plastic Flow, enter mold diversion hole, extruded product.Extrusion process has following limitation:
1, production cost is high.In extrusion process, the condition of work of extrusion die is severe, and the mandrel surface friction of aluminum metal stream and acicular texture is strong, and the die working length rate of wear is fast, and die life is short.The often polishing again of extrusion die work band.
2, production equipment energy consumption is large.Die change need to, through 14 procedures, affect operating efficiency.Extruding force demand is large, and equipment power consumption is high.
3, unstable product quality.The technological parameters such as the temperature of continuously extruded process, speed, squeegee roller running clearance are a kind of dynamically-adjusting parameter of interdependence, continuously extruded meeting produces more than pressure, the pollutants such as the oxide-film on blank top layer, greasy dirt and aqueous vapor are easily directly extruded in goods, have a strong impact on the classical production process of product quality porous micro channel flat tube.
Through retrieval, find Chinese invention patent: the production line of flat metal tube and the manufacture method of flat metal tube, publication number: 101186014, application number: 200710301550.7, this disclosure of the invention a kind of production line of flat metal tube and the manufacture method of flat metal tube: " production line of described flat metal tube at least comprises a rolling device, online length compensation device and a flat metal tube extruder, and described online length compensation device is used for dynamically adjusting the time that Metallic rod arrives next step operation.Described flat metal tube manufacture method comprises the Metallic rod base after founding to utilize rolling device to roll into by the Metallic rod support member of online length compensation device, to send into continuous extruder after Metallic rod Metallic rod is squeezed into flat metal tube, described online length compensation device dynamically adjusts by Metallic rod support member the time that Metallic rod arrives next step operation, by the continuous extruder that is supplied to of Metallic rod stable and continuous." this invention is by being used online compensation device; although can solve some problems; because what still adopt is continuous extruding technology; so still there is above-mentioned problem; so need a kind of new processing technology badly; obtain higher Product Precision, more excellent properties of product, the significantly feature such as energy-conservation, low cost, high yield.
Through retrieval, find Chinese invention patent: roll forming manufacture method and the equipment of porous micro channel flat tube, publication number: CN102179697A, application number: 201110073278.8, this disclosure of the invention a kind of roll forming manufacture method and equipment of porous micro channel flat tube: " first metal coil tape, after uncoiling aligning on-line cleaning, is delivered to roll squeezer and is suppressed microflute; Metal blank enters into the multi-step forming roll of arranged in order afterwards, and roll bends to symmetrical both sides the band material transporting from straightened condition successively gradually; Finally, then the both sides of described symmetry are connected, form described porous micro channel flat tube." although this invention avoided the series of problems occurring in continuous extruding technology, this invention has following limitation in the specific implementation: first, need to before roll bending, to band material, carry out the compacting of microflute, therefore to band material, have strict demand; Have, the welding of described symmetrical both sides need to add extra bond technology again, has seriously hindered tubulation speed.
Summary of the invention
The present invention is directed to above shortcomings in prior art, a kind of roll forming device and manufacturing process of ten hole micro-channel flat is provided.The present invention has avoided the series of problems of continuously extruded middle appearance, has also avoided the limitation occurring in the roll forming of existing microchannel simultaneously.
The present invention is achieved by the following technical solutions.
According to an aspect of the present invention, a kind of roll forming device of ten hole micro-channel flat is provided, comprise the uncoiler, straightener and the roll forming unit that set gradually, wherein, described roll forming unit comprise two rows roll arranged in order being formed by multi-pass roll forming roller and be arranged at roll forming roller between painting brazing flux device and product straightener, above push aside roller and under push aside and between roller, be provided with the gap suitable with ten hole micro-channel flat shape and size;
Described uncoiler, for discharging the metal blank of package;
Described straightener, for make metal blank more smooth send into shaping stage;
Described two rows roll, for by straight metal blank gradually bend to ten hole micro-channel flat;
Described painting brazing flux device, is coated with a certain amount of brazing flux for the folding intersection at metal blank, thereby carries out soldering after being shaped;
Described product straightener, keeps straight for the metal blank that guarantees to send to, and lateral sliding and shake occur while avoiding charging.
Preferably, described roll forming roller is to being symmetrical structure.
Preferably, described roll forming roller is to having Precise outline structure.
Preferably, the rear end of described roll forming unit is provided with high speed cutting means, the described high speed cutting means ten hole micro-channel flat that cutting is produced according to length requirement.
Preferably, described roll forming unit comprises 24 passage roll forming rollers pair, described painting brazing flux device comprises that the first painting brazing flux device and second is coated with brazing flux device, wherein, first is coated with brazing flux device is arranged on the 9th passage roll forming roller to locating, and second is coated with brazing flux device is arranged on the 16th passage roll forming roller to locating.
Preferably, described first is coated with brazing flux device is provided with 5 Glue dripping heads, and described second is coated with brazing flux device is provided with 4 Glue dripping heads.
Preferably, described multi-pass roll forming roller is to being comprised of a series of preform rollers and smart forming rolls.
According to another aspect of the present invention, provide a kind of manufacturing process of roll forming device of above-mentioned ten hole micro-channel flat, comprised the following steps:
Step 1, metal coil tape passes through uncoiler and straightener successively, forms metal blank, and sends into roll forming unit;
Step 2, the metal blank roll forming roller that the multi-pass by arranged in order has symmetrical contoured cross section is successively to repeatedly bending;
Preferably, in described step 2, metal blank is through twice 180 degree turnovers, and each turnover makes the closed hole of the overlapped formation of metal blank.
Preferably, described ten hole micro-channel flat have along center line symmetrical structure, and the both sides of center line are respectively five passages.
Preferably, the cross sectional shape of described five microchannels is roughly rectangle.
Preferably, described metal coil tape adopts the clad aluminum strip paper tinsel with heat conveyance performance, and described clad aluminum strip paper tinsel comprises three layers, and wherein, intermediate layer is Al-Mn alloy, and the coated thickness in two sides in intermediate layer is the Al-Si solder alloy of clad aluminum strip paper tinsel 10%.
Utilize roll forming device and the manufacturing process of ten hole micro-channel flat provided by the invention, the roll forming roller pair by the multi-pass of arranged in order with contoured profile, by coiled material or individual sheet material gradually carry out transverse curvature, make the shape of specific end face; This manufacturing process belongs to flexible forming process, and replaceable different embossing passage roll forming roller pair, can produce circular cross-section, square-section and variable cross-section passage.
The roll forming device of ten hole micro-channel flat provided by the invention and manufacturing process, its production efficiency is high, and product surface quality is good, and dimensional accuracy is high, and length is unrestricted; Can high speed tubulation, speed of production is greater than 80 ms/min; Can full automation, by row's roller roll forming, working environment is clean, pollution-free, and low noise is energy-conservation; Ten microchannels, hole that utilize the present invention to produce to obtain are flat, constant product quality, and in roll bending process, aluminum strip, in good stress state, can guarantee that microchannel has higher dimensional accuracy, and it is longer respectively to arrange life-span of roller; The high-quality heat transmission clad aluminum strip paper tinsel adopting, take Al-Mn alloy as core, two-sided coated thickness is the Al-Si solder alloy of clad aluminum strip paper tinsel 10%, not only there is good surface quality, accurate size and smooth plate shape, and even tissue, forming property are good, especially the uniformity of clad and weldability are very excellent.
The metal coil tape that the present invention adopts is and the similar aluminium alloy roll coil of strip of fin, being easy to anticorrosion controls, and the welding procedure of flat tube is all soldering processes with the welding of fin flat tube, only need to when tubulation, coat a certain amount of brazing flux, after tubulation, with the fin assembling, in soldering oven, carry out together soldering, do not need extra special welding procedure; The flat tube steady quality of producing, has significantly energy-conservation, low cost, high yield, tubulation speed high.
Compared with prior art, advantage of the present invention and beneficial effect are:
First, do not need more accurate mould in the production of micro-channel flat, avoided the series of problems of continuously extruded middle appearance, the quality of the flat tube of producing is more stable;
Secondly, while adopting fashion of extrusion to produce, extrusion speed is conventionally at 2-3 m/min, and roll bending explained hereafter speed is greater than 80 ms/min, and production efficiency improves more than 20 times compared with conventional extruded mode;
Meanwhile, avoided adding extra welding procedure in roll forming process, only by soldering processes, can realize the production of whole heat exchanger.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the roll forming device structural representation of the present invention's ten hole micro-channel flat;
Fig. 2 is the ten hole micro-channel flat sectional views that utilize the present invention to prepare;
Fig. 3 is the rough schematic view of ten hole micro-channel flat roll forming processes;
Fig. 4 is that in the roll forming process of ten hole micro-channel flat, flower type changes schematic diagram;
In figure: 1 is uncoiler, 2 is straightener, and 3 is roll forming unit, and 4 is the first painting brazing flux device, and 5 is product straightener, and 6 is the second painting brazing flux device, and 7 is high speed cutting means, and 8 is ten hole micro-channel flat.
The specific embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented take technical solution of the present invention under prerequisite, has provided detailed embodiment and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Please refer to Fig. 1 to Fig. 4.
The present embodiment provides a kind of roll forming device of ten hole micro-channel flat, comprise the uncoiler, straightener and the roll forming unit that set gradually, wherein, described roll forming unit comprise two rows roll arranged in order being formed by multi-pass roll forming roller and be arranged at roll forming roller between painting brazing flux device and product straightener, above push aside roller and under push aside and between roller, be provided with the gap suitable with ten hole micro-channel flat shape and size;
Described uncoiler, for discharging the metal blank of package;
Described straightener, for make metal blank more smooth send into shaping stage;
Described two rows roll, for by straight metal blank gradually bend to ten hole micro-channel flat;
Described painting brazing flux device, is coated with a certain amount of brazing flux for the folding intersection at metal blank, thereby carries out soldering after being shaped.
Further, described roll forming roller is to being symmetrical structure.
Further, described roll forming roller is to having Precise outline structure.
Further, the rear end of described roll forming unit is provided with high speed cutting means, the described high speed cutting means ten hole micro-channel flat that cutting is produced according to length requirement.
Further, described roll forming unit comprises 24 passage roll forming rollers pair, described painting brazing flux device comprises that the first painting brazing flux device and second is coated with brazing flux device, wherein, first is coated with brazing flux device is arranged on the 9th passage roll forming roller to locating, and second is coated with brazing flux device is arranged on the 16th passage roll forming roller to locating.
Further, described first is coated with brazing flux device is provided with 5 Glue dripping heads, and described second is coated with brazing flux device is provided with 4 Glue dripping heads.
Further, described multi-pass roll forming roller is to being comprised of a series of preform rollers and smart forming rolls.
The manufacturing process of the roll forming device of above-mentioned ten hole micro-channel flat, comprises the following steps:
Step 1, metal coil tape passes through uncoiler and straightener successively, forms metal blank, and sends into roll forming unit;
Step 2, the metal blank roll forming roller that the multi-pass by arranged in order has symmetrical contoured cross section is successively to repeatedly bending;
Further, described ten hole micro-channel flat have along center line symmetrical structure, and the both sides of center line are respectively five passages.
Further, the cross sectional shape of described five microchannels is roughly rectangle.
Further, described metal coil tape adopts the clad aluminum strip paper tinsel with heat conveyance performance, and described clad aluminum strip paper tinsel comprises three layers, and wherein, intermediate layer is Al-Mn alloy, and the coated thickness in two sides in intermediate layer is the Al-Si solder alloy of clad aluminum strip paper tinsel 10%.
The present embodiment is specially:
As shown in Figure 1, the manufacturing process of the roll forming device of the ten hole micro-channel flat that the present embodiment provides, comprises the steps:
First, grandfather tape material is that bandwidth is 53mm, the metal coil tape that wall thickness is 0.265mm, and its material is the composite that the aluminium alloy by three layers of heterogeneity forms; Metal belting, after uncoiler 1 uncoiling, straightener 2 alignings, is delivered to roll forming unit 3;
Afterwards, the multi-pass roll forming roller centering of metal blank entering order configuration is shaped gradually, and its forming process as shown in Figure 3; During this period, plate need to be through twice 180 degree turnovers, each turnover all can make the closed hole of the overlapped formation of plate, therefore before twice turnover, need to coat a certain amount of brazing flux for soldering in the relevant position on metal belting, here, before painting brazing flux device 4 is arranged on roll forming operation He #16 road, #9 road roll forming operation; From roll forming unit, be just configured as ten hole micro-channel flat after out;
Finally, then through product straightener 5, deliver in high speed cutting means 6 and cut online, obtain satisfactory ten hole micro-channel flat products.
As shown in Figure 2, application said method manufacturing product is out a kind of folding flat tube with ten microchannels, ten hole micro-channel flat namely, described ten hole micro-channel flat have upper wall portions, lower wall portion, left wall portion and right wall portion, described left wall portion and described right wall portion have arcuate shape, and described arcuate shape is roughly semicircle or half-oval shaped.
As shown in Figure 4, the roll bending technical process of ten hole micro-channel flat is comprised of following 24 passages:
After #2 road roll forming operation, plate both sides form the U-shaped groove 23 that Open Side Down, and the plate 22 into next step roll bending is left in groove outside;
After #3 road roll forming operation, form opening up U-shaped groove 24;
After #4 road roll forming operation, form downward opening U-shaped groove 25;
After #5 road roll forming operation, form crimp 26;
After #6 road roll forming operation, plate starts inside turnover, forms outer wall 28 and the excessive circular arc 27 of passage, and the angle of this road roll bending turnover is 45 °;
After #7 road roll forming operation, plate continues inwardly turnover, and the angle after turnover is 60 °;
After #8 road roll forming operation, turnover forms transition arc 30 and channel outer wall 31, and in the middle of plate, reflexed becomes upwards arc 32 simultaneously, and the arc degree of depth is Hs, and object is that after making plate turnover, resilience reduces, and obtains better turnover angle.The angle of this procedure turnover is 85 °;
After #9 road roll forming operation, plate continues turnover, and in the middle of plate, arc 32 of reflexed highly strengthen Hd.The angle turning down after this procedure is 90 °;
After #10 road roll forming operation, the turnover of plate turnover part, to inner side, recovers straightened condition in the middle of plate;
After #11 road roll forming operation, inwardly turnover is continued in plate both sides, and turnover angle is 125 °;
After #12 road roll forming operation, inwardly turnover is continued in plate both sides, and turnover angle is 160 °;
After #13 road roll forming operation, at plate middle part, form the arc 34 of downward recurvation, in order that laminating is better in the middle of both sides turnover part and plate, reduce to turn down part resilience;
After #14 road roll forming operation, dogleg section and the laminating of plate mid portion, the closed passage 35 that forms of groove 33 and groove 34.Passage 35 runs through the longitudinal of whole plate. U-shaped groove 23 and 25 is towards upper, with the public sidewall of passage 35.Crimp 26 is towards the opposite with straight line;
After #15 road roll forming operation, formed the 3rd turnover circular arc 36, groove 23,25 and passage 35 rotation turnovers, final groove 23,25 will form remaining passage 35 in the laminating of plate mid portion;
After #16 road roll forming operation, groove 23,25 and passage 35 turnovers become large gradually, and sidewall circular arc 36 length increase.The angle turning down after this procedure is 42 degree;
After #17 road roll forming operation, groove 23,25 and passage 35 turnovers become large gradually, and sidewall circular arc 36 length increase.The angle that this procedure turns over rear folding is 62 degree;
After #18 road roll forming operation, groove 23,25 and passage 35 infoldings become greatly gradually, and sidewall circular arc 36 length increase.Angle after this procedure turnover is 85 degree;
After #19 road roll forming operation, groove 23,25 and passage 35 infoldings become greatly gradually, and sidewall circular arc 36 length increase.Angle after this procedure turnover is 95 degree;
After #20 road roll forming operation, groove 23,25 and passage 35 infoldings become greatly gradually, and sidewall circular arc 36 length increase.Angle after this procedure turnover is 116 degree;
After #21 road roll forming operation, groove 23,25 and passage 35 infoldings become greatly gradually, and sidewall circular arc 36 length increase.Angle after this procedure turnover is 138 degree;
After #22 road roll forming operation, groove 23,25 and passage 35 infoldings become greatly gradually, and sidewall circular arc 36 length increase.Angle after this procedure turnover is 160 degree;
After #23 road roll forming operation, groove 23,25 and passage 35 turnovers and the laminating of plate mid portion, groove 23 and the closed passage 35 that forms of groove 25, outer wall 29 is perfect closed at plate mid portion.Outer wall 37 parallels with outer wall 38, with the common tube channel outer wall that forms of circular arc 36.Crimp 26 and circular arc 36 laminatings.Passage 35 has ten;
Through #17 road roll forming operation, this procedure object is precision truing, makes the final ten hole micro-channel tubes shapes that form more perfect.
In the present embodiment:
The roll forming technique of ten hole micro-channel flat, comprises the steps:
First, metal coil tape is delivered to roll forming unit after uncoiling, aligning;
Afterwards, the metal belting forming rolls that the multi-pass by arranged in order has a symmetrical contoured cross section successively repeatedly bends, and forms described ten hole micro-channel flat;
The last micro-channel flat through aligning, cut formation again with random length.
The ten hole micro-channel flat that obtain are along center line symmetry, and every side has five passages.
Described roll forming technique is by the multi-pass of arranged in order, to have the forming rolls of contoured profile, coiled material or individual sheet material gradually carry out transverse curvature, to make the shape of specific end face.
Described roll forming explained hereafter efficiency is high, and product surface quality is good, and dimensional accuracy is high, and length is unrestricted.
Described roll forming technique can high speed tubulation, and speed of production is greater than 80 ms/min.
Described roll forming technique can full automation, and main by row's roller roll forming, working environment is clean, pollution-free, and low noise is energy-conservation.
Described roll forming technique belongs to flexible forming process, and replaceable different embossing passage roll, can produce circular cross-section, square-section and variable cross-section passage.
Described roll forming handicraft product steady quality, in roll bending process, aluminum strip, in good stress state, can guarantee that microchannel has higher dimensional accuracy, and it is longer respectively to arrange life-span of roller.
The high-quality heat transmission clad aluminum strip paper tinsel of described roll forming process using, take Al-Mn alloy as core, the Al-Si solder alloy that two-sided coated thickness is 10%, it not only has good surface quality, accurate size and smooth plate shape, and even tissue, forming property are good, especially the uniformity of clad and weldability are very excellent.
The present embodiment provides the roll forming device of ten hole micro-channel flat, comprising:
Uncoiler, for discharging the metal blank of package;
Straightener, for make metal blank more smooth send into shaping stage;
Roll forming unit, straight metal blank gradually bend to micro-channel flat;
Be coated with brazing flux device, for the folding intersection at metal blank, be coated with a certain amount of brazing flux, to carry out soldering after being shaped.
High speed cutting means, for ten hole micro-channel tubes of progressive forming being carried out to restriction and the cutting of length direction, described high speed cutting machine can match with forming speed, the ten hole micro-channel flat that length cutting is produced as requested.
Product straightener, makes the metal blank of sending to keep straight, and lateral sliding and shake occur while avoiding charging.
Described roll forming unit is comprised of a series of preform roller and smart forming rolls, and wherein top and bottom rolls shape and gap are determined by the size of produced flat tube.
Described painting brazing flux device is installed on roll forming unit #9 road roll bending equipment He 16 road roll bending equipment.
Described painting brazing flux device has two different covers, 5 Glue dripping heads of a set of employing, in addition 4 Glue dripping heads of a set of employing.
After described roll forming unit, be provided with cutting machine, described cutting machine obtains the micro-channel flat that length cutting is produced on request.
Described roll forming unit is provided with a series of rollers pair with Precise outline cross section, and the right contoured surface of described roller is symmetric shape, described metal belting along described roller to advancing, bending is shaped gradually.
First described roll forming process is bent into roughly rectangular zigzag fashion by the both sides of described metal blank, and through twice 180 degree turnovers, making described Sheet metal forming is more afterwards described ten hole micro-channel flat.
At the overlapping of tube wall, the method by soldering connects described micro-channel flat.
Described soldering processes require, in forming process, in the relevant position of metal belting, to be coated with a certain amount of brazing flux.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. the roll forming device of a hole micro-channel flat, it is characterized in that, comprise the uncoiler, straightener and the roll forming unit that set gradually, wherein, described roll forming unit comprise two rows roll arranged in order being formed by multi-pass roll forming roller and be arranged at roll forming roller between painting brazing flux device and product straightener, above push aside roller and under push aside and between roller, be provided with the gap suitable with ten hole micro-channel flat shape and size;
Described uncoiler, for discharging the metal blank of package;
Described straightener, for make metal blank more smooth send into shaping stage;
Described two rows roll, for by straight metal blank gradually bend to ten hole micro-channel flat;
Described painting brazing flux device, is coated with a certain amount of brazing flux for the folding intersection at metal blank, thereby carries out soldering after being shaped;
Described product straightener, keeps straight for the metal blank that guarantees to send to, and lateral sliding and shake occur while avoiding charging.
2. the roll forming device of ten hole micro-channel flat according to claim 1, is characterized in that, described roll forming roller is to being symmetrical structure.
3. the roll forming device of ten hole micro-channel flat according to claim 1, is characterized in that, described roll forming roller is to having Precise outline structure.
4. the roll forming device of ten hole micro-channel flat according to claim 1, is characterized in that, described multi-pass roll forming roller is to being comprised of a series of preform rollers and smart forming rolls.
5. the roll forming device of ten hole micro-channel flat according to claim 1, is characterized in that, the rear end of described roll forming unit is provided with high speed cutting means, the described high speed cutting means ten hole micro-channel flat that cutting is produced according to length requirement.
6. according to the roll forming device of ten hole micro-channel flat described in any one in claim 1 to 5, it is characterized in that, described roll forming unit comprises 24 passage roll forming rollers pair, described painting brazing flux device comprises that the first painting brazing flux device and second is coated with brazing flux device, wherein, first is coated with brazing flux device is arranged on the 9th passage roll forming roller to locating, and second is coated with brazing flux device is arranged on the 16th passage roll forming roller to locating.
7. the roll forming device of ten hole micro-channel flat according to claim 6, is characterized in that, described first is coated with brazing flux device is provided with 5 Glue dripping heads, and described second is coated with brazing flux device is provided with 4 Glue dripping heads.
8. a manufacturing process for the roll forming device of ten hole micro-channel flat described in any one in claim 1 to 7, is characterized in that, comprises the following steps:
Step 1, metal coil tape passes through uncoiler and straightener successively, forms metal blank, and sends into roll forming unit;
Step 2, the metal blank roll forming roller that the multi-pass by arranged in order has symmetrical contoured cross section is successively to repeatedly bending;
Step 3, first be coated with brazing flux device and second be coated with brazing flux device respectively the 9th passage roll forming roller to the 16th passage roll forming roller to locating, the folding intersection of metal blank is coated with to a certain amount of brazing flux, after being shaped, carry out soldering;
Step 4, the metal blank after bending passes through product straightener and high speed cutting means successively, cuts and forms the ten hole micro-channel flat with random length.
9. the manufacturing process of the roll forming device of ten hole micro-channel flat according to claim 8, is characterized in that, in described step 2, metal blank is through twice 180 degree turnovers, and each turnover makes the closed hole of the overlapped formation of metal blank.
10. the manufacturing process of the roll forming device of ten hole micro-channel flat according to claim 8, it is characterized in that, described metal coil tape adopts the clad aluminum strip paper tinsel with heat conveyance performance, described clad aluminum strip paper tinsel comprises three layers, wherein, intermediate layer is Al-Mn alloy, and the coated thickness in two sides in intermediate layer is the Al-Si solder alloy of clad aluminum strip paper tinsel 10%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021043.8A CN103753162B (en) | 2014-01-17 | 2014-01-17 | The roll forming device of ten hole micro-channel flat and manufacturing process |
| JP2015006876A JP6660086B2 (en) | 2014-01-17 | 2015-01-16 | Microchannel flat tube roll forming machine and forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021043.8A CN103753162B (en) | 2014-01-17 | 2014-01-17 | The roll forming device of ten hole micro-channel flat and manufacturing process |
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| CN105215099A (en) * | 2015-09-17 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of new cold bend type steel device |
| CN106040776A (en) * | 2016-07-13 | 2016-10-26 | 上海爱斯达克汽车空调系统有限公司 | Manufacturing method for folding multi-channel flat tube |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09239474A (en) * | 1996-03-12 | 1997-09-16 | Matsushita Electric Ind Co Ltd | Method and device for fin forming of strip material |
| KR20020026674A (en) * | 2000-10-02 | 2002-04-12 | 윤완중 | Device and method for molding a radiation fin for heat sink |
| CN201385171Y (en) * | 2009-04-01 | 2010-01-20 | 辽宁科技大学 | Solid-solid phase continuous brazing and rolling device of stainless steel clad plate |
| CN102179697A (en) * | 2011-03-25 | 2011-09-14 | 无锡凯博易机电科技有限公司 | Roll bending formation manufacturing method and equipment for porous microchannel flat pipe |
| CN202114066U (en) * | 2011-05-17 | 2012-01-18 | 江西布兰森科技有限公司 | One-step flat pipe forming roll combination die |
| CN102353294A (en) * | 2011-08-30 | 2012-02-15 | 阳江市宝马利汽车空调设备有限公司 | Folding-type microchannel porous flat pipe and molding method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127320U (en) * | 1981-01-31 | 1982-08-09 | ||
| JPH0741331B2 (en) * | 1987-03-30 | 1995-05-10 | カルソニック株式会社 | Welding tube for heat exchanger and manufacturing method thereof |
| JPH11104768A (en) * | 1997-09-29 | 1999-04-20 | Zexel:Kk | Manufacturing device for heat exchanger tube |
| US20060230617A1 (en) * | 2005-04-13 | 2006-10-19 | Kent Scott E | Fabricated, brazed metal heat exchanger tube manufacture |
| US7657986B2 (en) * | 2007-01-04 | 2010-02-09 | Delphi Technologies, Inc. | Method of making a folded condenser tube |
| CN100537127C (en) * | 2007-12-21 | 2009-09-09 | 金龙精密铜管集团股份有限公司 | Production line for metal flat tube and method for manufacturing metal flat tube |
| CN103492827B (en) * | 2011-01-31 | 2016-06-29 | 马勒国际有限公司 | The method manufacturing the double; two nose pipe fittings for heat exchanger |
| US8661676B2 (en) * | 2011-03-29 | 2014-03-04 | Frank G. McNulty | Rotary die forming process and apparatus for fabricating multi-port tubes |
| JP6047304B2 (en) * | 2012-05-11 | 2016-12-21 | 株式会社Uacj | High strength aluminum alloy brazing sheet and method for producing the same |
| JP2012196713A (en) * | 2012-05-14 | 2012-10-18 | Keihin Thermal Technology Corp | Method for manufacturing flat pipe and manufacturing apparatus of flat pipe semifinished product |
-
2014
- 2014-01-17 CN CN201410021043.8A patent/CN103753162B/en active Active
-
2015
- 2015-01-16 JP JP2015006876A patent/JP6660086B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09239474A (en) * | 1996-03-12 | 1997-09-16 | Matsushita Electric Ind Co Ltd | Method and device for fin forming of strip material |
| KR20020026674A (en) * | 2000-10-02 | 2002-04-12 | 윤완중 | Device and method for molding a radiation fin for heat sink |
| CN201385171Y (en) * | 2009-04-01 | 2010-01-20 | 辽宁科技大学 | Solid-solid phase continuous brazing and rolling device of stainless steel clad plate |
| CN102179697A (en) * | 2011-03-25 | 2011-09-14 | 无锡凯博易机电科技有限公司 | Roll bending formation manufacturing method and equipment for porous microchannel flat pipe |
| CN202114066U (en) * | 2011-05-17 | 2012-01-18 | 江西布兰森科技有限公司 | One-step flat pipe forming roll combination die |
| CN102353294A (en) * | 2011-08-30 | 2012-02-15 | 阳江市宝马利汽车空调设备有限公司 | Folding-type microchannel porous flat pipe and molding method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874649A (en) * | 2015-04-07 | 2015-09-02 | 苏州金童机械制造股份有限公司 | Sheet metal roll-forming system |
| CN105127264A (en) * | 2015-08-05 | 2015-12-09 | 武铭旗 | Edging machine special for electric tricycle |
| CN105127264B (en) * | 2015-08-05 | 2017-07-18 | 武铭旗 | A kind of special folding brake of electro-tricycle |
| CN105215099A (en) * | 2015-09-17 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of new cold bend type steel device |
| CN106040776A (en) * | 2016-07-13 | 2016-10-26 | 上海爱斯达克汽车空调系统有限公司 | Manufacturing method for folding multi-channel flat tube |
| WO2018010201A1 (en) * | 2016-07-13 | 2018-01-18 | 上海爱斯达克汽车空调系统有限公司 | Method for manufacturing folded multi-channel flat tube |
| CN106767093A (en) * | 2016-12-27 | 2017-05-31 | 无锡逸龙铝热科技有限公司 | A kind of straight forming tabletting type radiator flat tube |
| CN106767091A (en) * | 2016-12-27 | 2017-05-31 | 无锡逸龙铝热科技有限公司 | A kind of multi-channel special flat tube and its production method |
| CN106767093B (en) * | 2016-12-27 | 2023-12-05 | 无锡逸龙铝热科技有限公司 | Direct forming tabletting type radiator flat tube |
| CN106629174A (en) * | 2017-02-14 | 2017-05-10 | 珠海格力智能装备技术研究院有限公司 | Unreel feed mechanism and body processing equipment |
| CN109604367A (en) * | 2018-12-24 | 2019-04-12 | 上海交通大学 | The roll forming device and manufacturing process of the collapsible micro-channel flat of Varying-thickness |
| CN113118238A (en) * | 2021-04-02 | 2021-07-16 | 西安交通大学 | Integrated forming device and process for annular flat tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015134376A (en) | 2015-07-27 |
| CN103753162B (en) | 2016-05-04 |
| JP6660086B2 (en) | 2020-03-04 |
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