CN107177745A - A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices - Google Patents
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices Download PDFInfo
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- CN107177745A CN107177745A CN201710358793.8A CN201710358793A CN107177745A CN 107177745 A CN107177745 A CN 107177745A CN 201710358793 A CN201710358793 A CN 201710358793A CN 107177745 A CN107177745 A CN 107177745A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14708—Fe-Ni based alloys
- H01F1/14716—Fe-Ni based alloys in the form of sheets
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Abstract
It is first 1 in mass ratio by iron and molybdenum the invention discloses a kind of iron nickel molybdenum magnetically soft alloy method for preparing slices：1~1.2 ratio melts in vacuum induction smelting furnace and pours into molybdenum-iron intermediate alloy block；The smelting ferroferrite of 2%~8% molybdenum-iron intermediate alloy block, 75%~85% nickel, 0.05%~0.4% phosphorus, 0.1%~0.45% sulphur and residual mass percentage is melted in sensing smelting furnace by mass percentage again, when alloy molten solution temperature after fusing rises to 1530~1580 DEG C, pour into a mould to form alloy sheet using rapid hardening, thin slice, which is immersed in the water after cooling, carries out drying process, and acquisition thickness is uniform, do not lump, aoxidize few alloy sheet.The present invention can solve the problem of precious metal molybdenum scaling loss is big when iron nickel-molybdenum alloy is smelted, and the alloy sheet of preparation can be directly used for powder process processed, and ball milling goes out alloy powder, and simplification of flowsheet reduces production cost；The situation of alloy oxidation in production process is reduced simultaneously, is enhanced product performance.
Description
Technical field
The present invention relates to a kind of iron nickel molybdenum magnetically soft alloy method for preparing slices, category alloy material smelts applied technical field.
Background technology
As electronics industry is continued to develop, the requirement more and more higher to magnetic material, metal soft magnetic alloy powder core is to use
The soft magnetic materials of powder metallurgically manufacturing, has the advantage that other magnetic materials hardly match in many application scenarios.In all gold
Belong in soft magnetic-powder core, iron nickel molybdenum soft magnetic alloy powder core has minimum loss, highest Q values, and stability is good, frequency of use scope
When wide, different frequencies works the advantages of noiseless.But the difficulty of preparation technology of iron nickel-molybdenum alloy powder body material is big, technique threshold
It is high.
At present, domestic and international different manufacturers prepare the method for iron nickel-molybdenum alloy powder body material mainly include mechanical alloying method,
Atomization, hot rolling crush method etc..Mechanical alloying method prepares iron nickel molybdenum soft-magnetic alloy powder body technology simply, but cycle length, energy consumption
Greatly, easily oxidation, performance reduction.Atomization is divided into aerosolization and water atomization, and gas atomization makes spherical powder, purity it is high but
Insufficient formability, difficult compacting, price；Water atomization makes irregular shape powder, and oxygen content is high, impurity is more, powder core loss is high, performance
Difference.Hot rolling crush method is to use alloy smelting casting ingot-forming, first pass through high temperature heavy reduction hot rolling ingot it is blocking after, then it is broken,
Powder processed, due to using air induced melting, is directly added into precious metal molybdenum in smelting process, causes the loss of metal molybdenum big, about
For 8% or so, significant wastage is caused.The process flow of such a manufacturing process is long simultaneously, and material and energy loss are big, alloy oxygen
Change serious；Common equipment of hot rolling does not reach technological requirement, then the powder made through ball milling during other high temperature heavy reduction hot rolling ingot
Bodily form looks are not good；Although powder good moldability prepared by heavy reduction equipment of hot rolling, performance is good, expensive, cause hot rolling
The alloy powder integrated cost height of crush method making, long flow path, equipment investment are big.
The content of the invention
In order to overcome the defect of prior art, the technical problems to be solved by the invention are to propose a kind of iron nickel molybdenum soft magnetism
The preparation method of alloy sheet, alloy sheet is poured into using rapid hardening is smelted, without hot rolling can direct ball milling, for making iron
Nickel molybdenum magnetically soft alloy powder, technological process is short, material and energy loss are small.For up to this purpose, the present invention uses following technical side
Case：
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices that the present invention is provided, implements as follows：
S10：It is 1 in mass ratio by iron and molybdenum：1~1.2 ratio pours into molybdenum-iron after being melted in vacuum induction smelting furnace
Intermediate alloy block；
S20：By mass percentage by 2%~8% molybdenum-iron intermediate alloy block made by step S10,75%~85%
Nickel, 0.05%~0.4% phosphorus, the smelting ferroferrite of 0.1%~0.45% sulphur and residual mass percentage is in sensing smelting
Melted in furnace, wherein the mass percent sum of the p and ses is 0.2%~0.5%；
S30：The alloy molten solution temperature melted in the sensing smelting furnace is risen to after 1530~1580 DEG C, poured using rapid hardening
Note forms alloy sheet；
S40：The alloy sheet is immersed in cooling water and cooled down；
S50：Processing is dried to the alloy sheet after cooling.
It is preferred that, it is again that molybdenum-iron intermediate alloy block addition is described after other raw material have melted in step S20
Sense smelting furnace fusing.
It is preferred that, in step S20, mass percent >=0.08% of the phosphorus, the mass percent of the sulphur >=
0.12%.
It is preferred that, in step s 30, the cast comprises the following steps：
S31：Alloy molten solution is poured into funnel brick；
S32：The alloy flowed out from the funnel hole of funnel brick is received with the upper shed of the tundish moved back and forth to melt
Liquid；
S33：Received using the chute being fixedly connected with the tundish described in the under shed outflow from the tundish
Alloy molten solution；
S34：The alloy molten solution is back and forth cast on the rapid hardening roller of high-speed rotation from the sprue gate of the chute；
S35：With the rapid hardening roller is by the alloy molten solution rapid hardening and quickly throws away to form alloy sheet.
It is preferred that, the tundish and chute are heated before being additionally included in step S31.
It is preferred that, the rotary electric machine and water-cooling system of the rapid hardening roller are opened before being additionally included in step S31.
It is preferred that, the rotary electric machine is stepless speed-change motor.
It is preferred that, the temperature of the cooling water is maintained at less than 10 DEG C.
It is preferred that, the drying process includes drying and dried.
Present invention has the advantages that：First by metal molybdenum and iron it is made under vacuo in molybdenum-iron using vacuum induction smelting furnace
Between alloy block, then with antivacuum sensing smelting furnace add nickel, the raw material such as iron and molybdenum-iron intermediate alloy block and smelt rapid hardening and tap a blast furnace nickel
Molybdenum alloy thin slice, can largely reduce scaling loss of the precious metal molybdenum during alloy smelting；Smelt in raw material and add
The p and ses of proper content can improve the fragility of the alloy.The alloy sheet becomes more crisp after being cooled down through rapid hardening, more favorably
In making iron nickel molybdenum soft-magnetic alloy powder.Rapid hardening roller service life can be improved by moving back and forth cast, lift the producing efficiency of thin slice.
The iron nickel-molybdenum alloy thin slice of preparation can be directly used for powder process processed, and ball milling goes out alloy powder；Simplification of flowsheet, reduction is produced into
This；The situation of alloy oxidation in preparation process is reduced simultaneously, is enhanced product performance.
Brief description of the drawings
The part of front view is cutd open when the chute for the alloy sheet apparatus for pouring that Fig. 1 uses for embodiment one is moved to the rightmost side
Depending on schematic diagram；
The part of front view is cutd open when the chute for the alloy sheet apparatus for pouring that Fig. 2 uses for embodiment one is moved to the leftmost side
Depending on schematic diagram；
Fig. 3 is the partial cutaway view schematic of alloy sheet apparatus for pouring left view in Fig. 1.
Embodiment
Technical scheme is further illustrated below by embodiment.
Embodiment one
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices that the present embodiment is provided, uses the alloy shown in Fig. 1~3
Thin slice apparatus for pouring 100.The alloy sheet apparatus for pouring 100, including casing 10, funnel brick 20, tundish 30, chute 40,
Drive mechanism 50, rapid hardening roller 60, cold plate 70 and cooling water tank 80.The inwall of casing 10 is fixed with a nothing by screw
The support 11 that magnetic steel plate is made；The high 100mm sintered by refractory material circular funnel brick 20 is set up in the support 11
On, the wide-mouth that its top is diameter 200mm, bottom is provided with the funnel hole 21 of an a diameter of 25mm.The height made by refractory material
It is provided with the tundish 30 of 400mm prolate staving shape, the tundish 30 with the oval upper shed 31 that major axis is 650mm
The load coil 33 set with the cast passage of the circular under sheds 32 of a diameter of 25mm and around the cast passage.By
High 100mm, the wide 500mm chute 40 of refractory material making, the chute 40 include the Breadth Maximum of the recessed formation in upper surface
Sprue gate 42 and be arranged at interior that the width extended for 250mm carrier 41, from carrier 41 to side is 20mm
Net 43 is heated provided with resistance-type in portion.The drive mechanism 50 includes setting at the underface 600mm of funnel hole 21 in casing 10
There are a long 1000mm guide rail 51 and the hydraulic stem 52 positioned at the side of guide rail 51, hydraulic cylinder 53 and the control hydraulic stem
52 and the controller 54 of hydraulic cylinder 53.The end positions of guide rail 51 are provided with the first limit switch 51A and the second limit switch
51B, forms 900mm moving section, and the midpoint of the moving section is located on the axis 21A of funnel hole 21.In described
Between the fixed mounts 34 that are made with the chute 40 by steel plate of bag 30 be fixedly connected, and be set up in the moving section, it is described
The one end of hydraulic stem 52 connects the hydraulic cylinder 53, and the other end connects the outside of the chute 40.The rapid hardening being made up of fine copper material
Roller 60 is arranged in the casing 10 at the lower section 50mm of sprue gate 42, and its width is 500mm, a diameter of 300mm, the speed
Solidifying roller 60 also includes the electrodeless motor 61 being arranged at outside the casing 10 and the water-cooling system for cooling down the rapid hardening roller 60
62, the position at the sprue gate 42 is located at directly over the axis of rapid hardening roller 60；The water-cooling system 62 includes being located at the speed
Water pump 62A outside solidifying roller 60, the waterway 62B inside the rapid hardening roller 60, the connection water pump 62A and waterway
62B oral siphon 62C and outlet pipe 62D.Described the inner of cold plate 70 is arranged on the rapid hardening roller 60 in the casing 10
Lower section, outer end extends to outside the casing 10, and its upper surface is in ramped shaped and is tilted down along bearing of trend, the cold plate
70 also include the oral siphon 72 and outlet pipe 73 located at internal waterway 71, the connection water pump 62A and waterway 71.No
The cooling water tank 80 for steel matter of becoming rusty is located at outside the casing 10, described cold built with cooling water of the water temperature below 10 DEG C
The solidifying outer end of plate 70 is located at the overthe openings of the cooling water tank 80, and the water-cooling system 62 also includes an outside cooling water tank (figure
Do not show), the water inlet of the water pump 62A, the outlet pipe 62D and the outlet pipe 73 are connected with the outside cooling water tank,
Carry out circulating cooling.
The iron nickel molybdenum magnetically soft alloy method for preparing slices comprises the following steps：
S10：It is 1 in mass ratio by iron and molybdenum：1.2 ratios are poured into the middle of molybdenum-iron after being melted in vacuum induction smelting furnace
Alloy block；
S20：75% nickel, 0.1% phosphorus, 0.1% sulphur and 16.8% smelting ferroferrite are existed by mass percentage
Sense in smelting furnace and melt；After above-mentioned raw material have melted, then the molybdenum-iron for by mass percentage making 8% step S10
Intermediate alloy block adds the sensing smelting furnace fusing, and begins to warm up tundish 30 and chute 40；
S30：When alloy molten solution temperature in the sensing smelting furnace is risen into 1530 DEG C, the water storage of cooling water tank 80 to 2/3
Ice cube is put into behind place, keeps cooling water temperature below 10 DEG C, opens the Water-cooling circulating of water-cooling system 62 and cold plate 70, start
The electrodeless motor 61 of rapid hardening roller 60 simultaneously adjusts rotating speed to 480 revs/min, at the same time, the liquid is controlled by the controller 54
Depression bar 52 is flexible so as to drive the tundish 30 and chute 40 in the first limit switch 51A and the second limit switch 51B
Moved in the moving section of formation；
S31：Alloy molten solution is poured into the funnel brick 20 from the sensing smelting furnace；
S32：The alloy flowed out from the funnel hole 21 of funnel brick 20 is received with the upper shed 31 of the tundish 30
Liquation；
S33：The stable institute flowed out of under shed 32 from the tundish 30 is received using the carrier 41 of the chute 40
State alloy molten solution, and slow down and stablize the flow velocity of the alloy molten solution using the larger undertaking space of the carrier 41；
S34：By the alloy molten solution with stable flow velocity from the sprue gate 42 of the chute 40 along the left side in Fig. 1 and Fig. 2
Right direction is back and forth cast on the rapid hardening roller 60 of high-speed rotation；
S35：When the alloy molten solution is contacted with the rapid hardening roller 60, the property of the quick conductive of rapid hardening roller 60 is made full use of
Matter cools down the alloy molten solution and it is quickly thrown away to the alloy sheet 90 to form that thickness is 0.2-0.5mm；
S40：The alloy sheet 90 gets rid of on the upper surface of the cold plate 70, and outwards sliding under gravity
Go out, 70 pairs of the cold plate alloy sheet 90 carries out secondary cooling during skidding off；Cooling water tank 80 is received from institute
The alloy sheet 90 of the landing of cold plate 70 is stated, it is sufficiently cool to the middle alloy sheet 90 using cooling water therein, and pass through
Add ice cube and keep the temperature of cooling water below 10 DEG C, it is ensured that to the cooling effect of the alloy sheet 90；
S50：After after the alloy sheet 90 completely cooling, it is drawn off and dries moisture, is then placed in temperature for 150 DEG C
Baking oven in, drying alloy sheet on moisture.
In the present embodiment, the alloy molten solution falls into the upper shed 31 of the tundish 30 from the funnel hole 21,
Flow into the carrier 41 of the chute 40 through pouring into a mould passage, under shed 32, the flow velocity of the alloy molten solution through the funnel brick 20,
Tundish 30 and the three-stage cast passage of the formation of chute 40 smoothly flow out from the sprue gate 42 after slowing down and are cast in institute
State the surface of rapid hardening roller 60.Load coil 33 and resistance-type the heating net 43 of the tundish 30 and chute 40, can be effective
The guarantee alloy molten solution when the tundish 30 and chute 40 flow keeping temperature；Certainly, to the He of tundish 30
The mode of heating of chute 40 is not limited to the mode of sensing heating or resistance heating, as long as the alloy molten solution can be kept to be poured into
Temperature before the rapid hardening roller 60.As shown in figure 1, when the left side of the chute 40 touches first limit switch
During 51A, the funnel hole 21 is located to press close to the position of the right-hand member of upper shed 31, the signal through the first limit switch 51A
Feedback, the controller 54 controls the hydraulic stem 52 to shrink, so as to drive the tundish 30 and chute 40 to move right.Such as
Shown in Fig. 2, when the right side of the chute 40 touches the second limit switch 51B, the funnel hole 21 is located to press close to institute
The position of the left end of upper shed 31 is stated, the signal feedback through the second limit switch 51B, the controller 54 controls the hydraulic pressure
Bar 52 extends, so as to drive the tundish 30 and chute 40 to be moved to the left.In the reciprocal shifting of above-mentioned tundish 30 and chute 40
During dynamic, the alloy molten solution that the funnel hole 21 is poured into a mould maintains to flow into the upper shed 31 of the tundish 30 all the time, will not
Cause the waste of alloy molten solution, also will not caused by the alloy molten solution spilt miscellaneous part damage.The sprue gate 42 is simultaneously
Also correspond to and moved back and forth in the top of rapid hardening roller 60, so that the uniform width in the rapid hardening roller 60 is back and forth poured into a mould, filled
Divide the cooling surface using the rapid hardening roller 60, and due to the limitation of moving section, it is ensured that the alloy that sprue gate 42 is flowed out melts
Liquid is all fallen within the rapid hardening roller 60.Due to moving back and forth for sprue gate 42 so that the alloy sheet 90 is uniformly scattered in institute
On the upper surface for stating cold plate 70, secondary cooling is carried out；Hereafter, because the inclination angle of the cold plate 70 is designed, through secondary cooling
The cooling water tank 80 that slips into slowly that can also be evenly distributed of alloy sheet 90 carry out last water cooling.
In the present embodiment, molybdenum-iron intermediate alloy by metal molybdenum and iron is made using vacuum induction smelting furnace under vacuo
Block, then with antivacuum sensing smelting furnace add nickel, the raw material such as iron and molybdenum-iron intermediate alloy block and smelt rapid hardening and tap a blast furnace nickel-molybdenum alloy
Thin slice, burn out rate of the precious metal molybdenum during whole alloy smelting is only 0.2% or so；Smelt and add appropriate in raw material
The p and ses of content can improve the fragility of the alloy, and the alloy sheet becomes more crisp after quick cooling, is more beneficial for system
Make iron nickel molybdenum soft-magnetic alloy powder.The cooling effect of each cooling step can be made full use of by moving back and forth cast, improve rapid hardening roller
Service life, lifts the producing efficiency of thin slice.
Embodiment two
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices that the present embodiment is provided, wherein being poured using to a kind of alloy sheet
Dispensing device, the alloy sheet apparatus for pouring is similar with the alloy sheet apparatus for pouring in embodiment one, but is not provided with cold plate
70, other sizes are slightly different, and will not be described here.
The iron nickel molybdenum magnetically soft alloy method for preparing slices that the present embodiment is provided comprises the following steps：
S10：It is 1 in mass ratio by iron and molybdenum：1.1 ratios are poured into the middle of molybdenum-iron after being melted in vacuum induction smelting furnace
Alloy block；
S20：By mass percentage by 80% nickel, 0.08% phosphorus, 0.22% sulphur and 14.7% smelting ferroferrite
Melted in sensing smelting furnace；After above-mentioned raw material have melted, then the molybdenum for by mass percentage making 5% step S10
Iron intermediate alloy block adds the sensing smelting furnace fusing, and begins to warm up tundish 30 and chute 40；Implement interchangeable
In example, the mass percent of the p and ses in this step can replace with 0.18% and 0.12% respectively；
S30：Alloy molten solution temperature in the sensing smelting furnace is risen to 1540 DEG C；By the water storage of cooling water tank 80 to 2/3
Ice cube is put into behind place, keeps cooling water temperature below 10 DEG C, opens water-cooling system 62；Start the electrodeless motor 61 of rapid hardening roller 60
And rotating speed is adjusted to 550 revs/min；At the same time, control the hydraulic stem 52 flexible to drive institute by the controller 54
Tundish 30 and chute 40 is stated to move in the moving section of the first limit switch 51A and the second limit switch 51B formation；
S31：Alloy molten solution is poured into the funnel brick 20 from the sensing smelting furnace；
S32：The alloy flowed out from the funnel hole 21 of funnel brick 20 is received with the upper shed 31 of the tundish 30
Liquation；
S33：The stable institute flowed out of under shed 32 from the tundish 30 is received using the carrier 41 of the chute 40
State alloy molten solution, and slow down and stablize the flow velocity of the alloy molten solution using the larger undertaking space of the carrier 41；
S34：By the alloy molten solution with stable flow velocity from the sprue gate 42 of the chute 40 along the left side in Fig. 1 and Fig. 2
Right direction is back and forth cast on the rapid hardening roller 60 of high-speed rotation；
S35：When the alloy molten solution is contacted with the rapid hardening roller 60, the property of the quick conductive of rapid hardening roller 60 is made full use of
Matter cools down the alloy molten solution and it is quickly thrown away to the alloy sheet 90 to form that thickness is 0.2-0.5mm；
S40：The cooling water tank 80 receives the alloy sheet 90 for getting rid of to fall from the rapid hardening roller 60, utilizes cooling water therein
It is sufficiently cool to the middle alloy sheet 90, and the temperature of cooling water is kept below 10 DEG C by adding ice cube, it is ensured that to institute
State the cooling effect of alloy sheet 90；
S50：After after the alloy sheet 90 completely cooling, it is drawn off and dries moisture, is then placed in temperature for 150 DEG C
Baking oven in, drying alloy sheet on moisture.
Embodiment three
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices that the present embodiment is provided, wherein being poured using to a kind of alloy sheet
Dispensing device, the alloy sheet apparatus for pouring is similar with the alloy sheet apparatus for pouring in embodiment two, will not be described here.
A kind of iron nickel molybdenum magnetically soft alloy method for preparing slices that the present embodiment is provided includes step：
S10：It is 1 in mass ratio by iron and molybdenum：1 ratio is poured into the middle of molybdenum-iron after being melted in vacuum induction smelting furnace and closed
Gold bullion；
S20：By mass percentage by 85% nickel, 0.05% phosphorus, 0.45% sulphur and 12.5% smelting ferroferrite
Melted in sensing smelting furnace；After above-mentioned raw material have melted, then the molybdenum for by mass percentage making 2% step S10
Iron intermediate alloy block adds the sensing smelting furnace fusing, and begins to warm up tundish 30 and chute 40；Implement interchangeable
In example, the mass percent of the p and ses in this step can be replaced 0.4% and 0.1%；
S30：Alloy molten solution temperature in the sensing smelting furnace is risen to 1580 DEG C；The water storage of cooling water tank 80 is at 2/3
After be put into ice cube, keep cooling water temperature less than 10 DEG C, open water-cooling system 62, the electrodeless motor 61 of startup rapid hardening roller 60 is simultaneously
Rotating speed is adjusted to 520 revs/min；At the same time, control the hydraulic stem 52 flexible by the controller 54 so as to drive described
Tundish 30 and chute 40 are moved in the moving section of the first limit switch 51A and the second limit switch 51B formation；
S31：Alloy molten solution is poured into the funnel brick 20 from the sensing smelting furnace；
S32：The alloy flowed out from the funnel hole 21 of funnel brick 20 is received with the upper shed 31 of the tundish 30
Liquation；
S33：The stable institute flowed out of under shed 32 from the tundish 30 is received using the carrier 41 of the chute 40
State alloy molten solution, and slow down and stablize the flow velocity of the alloy molten solution using the larger undertaking space of the carrier 41；
S34：By the alloy molten solution with stable flow velocity from the sprue gate 42 of the chute 40 along the left side in Fig. 1 and Fig. 2
Right direction is back and forth cast on the rapid hardening roller 60 of high-speed rotation；
S35：When the alloy molten solution is contacted with the rapid hardening roller 60, the property of the quick conductive of rapid hardening roller 60 is made full use of
Matter cools down the alloy molten solution and it is quickly thrown away to the alloy sheet 90 to form that thickness is 0.2-0.5mm；
S40：The cooling water tank 80 receives the alloy sheet 90 for getting rid of to fall from the rapid hardening roller 60, utilizes cooling water therein
It is sufficiently cool to the middle alloy sheet 90, and the temperature of cooling water is kept below 10 DEG C by adding ice cube, it is ensured that to institute
State the cooling effect of alloy sheet 90；
S50：After after the alloy sheet 90 completely cooling, it is drawn off and dries moisture, is then placed in temperature for 200 DEG C
Baking oven in, drying alloy sheet on moisture.
In summary, the iron nickel molybdenum magnetically soft alloy method for preparing slices that the present invention is provided, first using vacuum induction smelting furnace
Under vacuo by metal molybdenum and it is iron be made molybdenum-iron intermediate alloy block, then add the former materials such as nickel, iron with antivacuum sensing smelting furnace
Material and molybdenum-iron intermediate alloy block are smelted rapid hardening and tapped a blast furnace nickel-molybdenum alloy thin slice, can largely reduce precious metal molybdenum in alloy smelting
Scaling loss during refining；The fragility of the alloy, the alloy can be improved by smelting the p and ses of addition proper content in raw material
Thin slice becomes more crisp after quick cooling, is more beneficial for making iron nickel molybdenum soft-magnetic alloy powder.Speed can be improved by moving back and forth cast
The service life of solidifying rod, lifts the producing efficiency of alloy sheet.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (9)
1. a kind of iron nickel molybdenum magnetically soft alloy method for preparing slices, it is characterised in that implement as follows：
S10：It is 1 in mass ratio by iron and molybdenum：1~1.2 ratio is poured into the middle of molybdenum-iron after being melted in vacuum induction smelting furnace
Alloy block；
S20：2%~8% is made by step S10 by mass percentage molybdenum-iron intermediate alloy block, 75%~85% nickel,
The smelting ferroferrite of 0.05%~0.4% phosphorus, 0.1%~0.45% sulphur and residual mass percentage is in sensing smelting furnace
Fusing, wherein the mass percent sum of the p and ses is 0.2%~0.5%；
S30：The alloy molten solution temperature melted in the sensing smelting furnace is risen to after 1530~1580 DEG C, shape is poured into a mould using rapid hardening
Into 0.2~0.5mm of thickness alloy sheet；
S40：The alloy sheet is immersed in cooling water and cooled down；
S50：Processing is dried to the alloy sheet after cooling.
2. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 1, it is characterised in that：In step S20,
The molybdenum-iron intermediate alloy block is added the sensing smelting furnace fusing by other raw material again after having melted.
3. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 1, it is characterised in that：In step S20, institute
State mass percent >=0.08% of phosphorus, mass percent >=0.12% of the sulphur.
4. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 1, it is characterised in that：In step s 30, institute
Cast is stated to comprise the following steps：
S31：Alloy molten solution is poured into funnel brick；
S32：The alloy molten solution flowed out from the funnel hole of funnel brick is received with the upper shed of the tundish moved back and forth；
S33：Received and melted from the under shed outflow alloy of the tundish using the chute being fixedly connected with the tundish
Liquid；
S34：The alloy molten solution is back and forth cast on the rapid hardening roller of high-speed rotation from the sprue gate of the chute；
S35：With the rapid hardening roller is by the alloy molten solution rapid hardening and quickly throws away to form alloy sheet.
5. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 4, it is characterised in that：It is additionally included in step
The tundish and chute are heated before S31.
6. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 4, it is characterised in that：It is additionally included in step
The rotary electric machine and water-cooling system of the rapid hardening roller are opened before S31.
7. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 6, it is characterised in that：The rotary electric machine is
Stepless speed-change motor.
8. iron nickel molybdenum magnetically soft alloy method for preparing slices as claimed in any of claims 1 to 7, it is characterised in that：
The temperature of the cooling water is maintained at less than 10 DEG C.
9. iron nickel molybdenum magnetically soft alloy method for preparing slices according to claim 8, it is characterised in that：The drying process bag
Include drying and dry.
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| CN114318172A (en) * | 2022-01-04 | 2022-04-12 | 西南科技大学 | Iron-nickel alloy with ultrahigh soft magnetic performance and preparation method thereof |
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Effective date of registration: 20211207 Address after: 510642 No. five, 483 mountain road, Guangzhou, Guangdong, Tianhe District Patentee after: SOUTH CHINA AGRICULTURAL University Address before: 510000 courtyard, 88 Jinhui street, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG IRON AND STEEL INSTITUTE |