CN104195475A - Thick amorphous soft magnetic alloy as well as preparation method and application thereof - Google Patents
Thick amorphous soft magnetic alloy as well as preparation method and application thereof Download PDFInfo
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- CN104195475A CN104195475A CN201410376564.5A CN201410376564A CN104195475A CN 104195475 A CN104195475 A CN 104195475A CN 201410376564 A CN201410376564 A CN 201410376564A CN 104195475 A CN104195475 A CN 104195475A
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Abstract
The invention relates to a thick amorphous soft magnetic alloy. The thick amorphous soft magnetic alloy comprises the following components in parts by weight: 70-80 parts of iron, 5-10 parts of silicon, 5-10 parts of boron and 0.5-2 parts of carbon. The amorphous soft magnetic alloy disclosed by the invention is an amorphous strip steel of which the thickness is 50-60mu m, by virtue of tests, when the amorphous strip steel has a thickness exceeding 50mu m, the amorphous strip steel can be directly punched into various amorphous chips with complicated shapes by a punching device and the amorphous chips are then stacked to prepare various profiled iron cores with complicated shapes and high dimensional precision, the consistency of the product is good and thus the manufacturing process and the manufacturing cost of the profiled iron cores are greatly simplified, the qualification ratio of the product is improved, the production efficiency is improved and the amorphous soft magnetic alloy plays a great promoting role in the development of the amorphous television.
Description
Technical field
The invention belongs to technical field of function materials, relate to magneticsubstance, especially a kind of thickness is at amorphous soft-magnetic alloy of 50-60uM and preparation method thereof.
Background technology
Amorphous soft magnetic material has the advantages such as very high saturated magnetic induction, low-coercivity, low-loss because of it, just progressively replace traditional soft magnetic materialss such as siliconized plate in many Application Areass.The thickness of domestic existing amorphous soft-magnetic alloy band is generally all in 30uM left and right.Make annular core ratio with this band and be easier to, but will make imaging E type or more the iron core of complicated shape is just more difficult.Conventionally the way adopting is first the amorphous band of cutting to be coiled into annular core, then carry out shaping with reshaping clamp, again orthopedic iron core is heat-treated to the rear vacuum-latexed method sizing of using together with fixture, finally carry out mechanical workout with special cutting device, surface grinding machine etc. again.Because operation is more, if every procedure is processed the bad last performance of iron core that all can have influence on, also increase cost of manufacture simultaneously.
Amorphous motor development in recent years rapidly, is done motor stator with non-crystalline material, and because its eddy-current loss when the high-frequency work is little, under 400Hz-10000Hz frequency, loss is the 1/3--1/5 of siliconized plate, has advantages of that loss is low, temperature rise is low.Along with the development of high frequency, high speed and high-performance electric machine technology, particularly automobile drive electric motor uses the alternative silicon steel material of non-crystaline amorphous metal to prepare stator core, thereby reduce the eddy-current loss under its high frequency, improved efficiency, power and the torque density of electric system.Amorphous motor will become following inevitable development trend.But the iron core for all size on amorphous motor is designed to abnormal shape more, comparatively complicated by the special-shaped iron core method of traditional manufacture.
By retrieval, not yet find the patent publication us relevant to patent application of the present invention.
Summary of the invention
The object of the invention is to overcome the deficiency in existing special-shaped iron core manufacturing technology, it is the thick amorphous soft-magnetic alloy band of 50-60um that a kind of thickness is provided, this thick amorphous soft-magnetic alloy band can produce by punching press stack way the special-shaped iron core of various complicated shapes, and dimensional precision is high, manufacturing process is simplified, reduced production cost, improved conforming product rate.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of thick amorphous soft-magnetic alloy, its moiety and parts by weight are as follows:
A preparation method for thick amorphous soft-magnetic alloy as above, step is as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting formation alloy molten solution, melting condition is: smelting temperature 1300-1500 DEG C, smelting time 2-4 hour, vacuum tightness 0.1-1Pa; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit and formed alloy cast ingot, and this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.1-0.2MPa;
(2) alloy cast ingot is put in the Medium frequency induction crucible on spray carrying equipment and carried out secondary smelting, smelting temperature is 1100-1300 DEG C, and smelting time 40-60 minute obtains secondary smelting liquation; Secondary smelting liquation is poured in the tundish through preheating, obtained steel Shui, tundish will be selected the higher pressure with increase steel Shui, improves the density of band; Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, in copper rod, be provided with super cooling system, ensure that speed of cooling is at 1,500,000 spend/S of degree/S-170 ten thousand, spray the thick amorphous soft-magnetic alloy band of thickness at 50-60um by the distance of adjusting between nozzle and copper rod, obtain thick amorphous soft-magnetic alloy.
And described step (2) middle preheating temperature is 1200-1300 DEG C.
And the described step (2) height of middle tundish is 280-300mm.
The application of thick amorphous soft-magnetic alloy as above aspect the special-shaped iron core of manufacture.
Advantage of the present invention and positively effect are:
1, amorphous soft-magnetic alloy of the present invention is that thickness is at 50-60um amorphous band, by experiment, after exceeding 50um, directly goes out thickness of amorphous strip the amorphous sheet of various complicated shapes with regard to available pressing equipment, again these amorphous sheets are stacked up and just can be made into the special-shaped iron core of various complicated shapes and dimensional precision is high, good product consistency, thereby manufacturing process and the manufacturing cost of special-shaped iron core are simplified widely, improve conforming product rate, improve production efficiency, for very large pushing effect has been played in the development of amorphous motor.
2, preparation method's method of the present invention is simple, easy to operate, preparation-obtained amorphous soft-magnetic alloy has saved the input of the equipment such as special cutting device, surface grinding machine, band cutting machine, reshaping clamp, improve the stability of producing iron core in enormous quantities, reduced the manufacture difficulty of complicated abnormal shape iron core.
Embodiment
Below in conjunction with embodiment, the present invention is further described; Following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
The method using in the present invention, if no special instructions, is the ordinary method of this area; The equipment using in the present invention, if no special instructions, is the conventional equipment of this area.
Embodiment 1
A kind of thick amorphous soft-magnetic alloy, its moiety and parts by weight are as follows:
Fe70-80 part; Si5-10 part; B5-10 part; C0.5-2 part.
Preparation method, the step of above-mentioned thick amorphous soft-magnetic alloy are as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting (smelting temperature 1300-1500 DEG C, smelting time 2-4 hour, vacuum tightness 0.1-1Pa) formation alloy molten solution; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit (this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.1-0.2MPa) and formed alloy cast ingot;
(2) alloy cast ingot is put into and in the Medium frequency induction crucible of spray on carrying equipment, carried out secondary smelting (smelting temperature is 1100-1300 DEG C, smelting time 40-60 minute) obtain secondary smelting liquation, secondary smelting liquation is poured into through preheating (preheating temperature 1200-1300 DEG C, to ensure the mobility of steel Shui) tundish in, tundish will be selected the pressure with increase steel Shui of higher (280-300mm), improves the density of band.Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, is provided with super cooling system in copper rod, ensure that speed of cooling is at 1,500,000 spend/S of degree/S--170 ten thousand, and this is that alloy strip steel rolled stock is thickeied the key problem in technology that 50-60um still can keep noncrystalline state.Spray the thick amorphous soft-magnetic alloy band of thickness at 50-60um by the distance of adjusting between nozzle and copper rod.
Embodiment 2
A kind of thick amorphous soft-magnetic alloy, its moiety and parts by weight are as follows:
A preparation method for thick amorphous soft-magnetic alloy as above, step is as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting formation alloy molten solution, melting condition is: 1300 DEG C of smelting temperatures, smelting time 2 hours, vacuum tightness 0.1Pa; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit and formed alloy cast ingot, and this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.1MPa;
(2) alloy cast ingot is put in the Medium frequency induction crucible on spray carrying equipment and carried out secondary smelting, smelting temperature is 1100 DEG C, and smelting time 40 minutes, obtains secondary smelting liquation; Secondary smelting liquation is poured in the tundish through preheating, and preheating temperature is 1200, and the height of tundish is 280mm, obtains steel Shui, and tundish will be selected the higher pressure with increase steel Shui, improves the density of band; Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, in copper rod, be provided with super cooling system, ensure that speed of cooling is at 1,500,000 degree/S, by adjusting distance ejection thickness between nozzle and copper rod at 50 thick amorphous soft-magnetic alloy band, obtain thick amorphous soft-magnetic alloy.
Embodiment 3
A kind of thick amorphous soft-magnetic alloy, its moiety and parts by weight are as follows:
A preparation method for thick amorphous soft-magnetic alloy as above, step is as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting formation alloy molten solution, melting condition is: 1400 DEG C of smelting temperatures, smelting time 3 hours, vacuum tightness 0.5Pa; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit and formed alloy cast ingot, and this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.15MPa;
(2) alloy cast ingot is put in the Medium frequency induction crucible on spray carrying equipment and carried out secondary smelting, smelting temperature is 1200 DEG C, and smelting time 50 minutes, obtains secondary smelting liquation; Secondary smelting liquation is poured in the tundish through preheating, and preheating temperature is 1250 DEG C, and the height of tundish is 290mm, obtains steel Shui, and tundish will be selected the higher pressure with increase steel Shui, improves the density of band; Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, in copper rod, be provided with super cooling system, ensure that speed of cooling is at 1,600,000 degree/S6, spray the thick amorphous soft-magnetic alloy band of thickness at 55um by the distance of adjusting between nozzle and copper rod, obtain thick amorphous soft-magnetic alloy.
Embodiment 4
A kind of thick amorphous soft-magnetic alloy, its moiety and parts by weight are as follows:
A preparation method for thick amorphous soft-magnetic alloy as above, step is as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting formation alloy molten solution, melting condition is: 1500 DEG C of smelting temperatures, smelting time 4 hours, vacuum tightness 1Pa; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit and formed alloy cast ingot, and this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.2MPa;
(2) alloy cast ingot is put in the Medium frequency induction crucible on spray carrying equipment and carried out secondary smelting, smelting temperature is 1300 DEG C, and smelting time 60 minutes, obtains secondary smelting liquation; Secondary smelting liquation is poured in the tundish through preheating, and preheating temperature is 1300 DEG C, and the height of tundish is 280-300mm, obtains steel Shui, and tundish will be selected the higher pressure with increase steel Shui, improves the density of band; Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, in copper rod, be provided with super cooling system, ensure that speed of cooling is at 1,700,000 degree/S, spray the thick amorphous soft-magnetic alloy band of thickness at 60um by the distance of adjusting between nozzle and copper rod, obtain thick amorphous soft-magnetic alloy.
The correlation detection result of low magnetic permeability nano-crystal soft magnetic alloy of the present invention:
By experiment, after thickness of amorphous strip exceedes 50um, directly go out the amorphous sheet of various complicated shapes with regard to available pressing equipment, then these amorphous sheets are stacked up and just can be made into the special-shaped iron core of various complicated shapes and have good dimensional precision.The thick amorphous soft-magnetic alloy band of the present invention can directly be gone out by punching press the amorphous sheet of various complicated shapes, then makes the special-shaped iron core of various complicated shapes by stack.Product is sold to Japan, is widely used on all kinds of amorphous motors.
Claims (5)
1. a thick amorphous soft-magnetic alloy, is characterized in that: its moiety and parts by weight are as follows:
2. a preparation method for thick amorphous soft-magnetic alloy as claimed in claim 1, is characterized in that: step is as follows:
(1) by formula accurate feed proportioning, the material preparing is put into vacuum induction furnace back warp and cross vacuum melting formation alloy molten solution, melting condition is: smelting temperature 1300-1500 DEG C, smelting time 2-4 hour, vacuum tightness 0.1-1Pa; Alloy molten solution is poured in the rotated mold filing dish that is provided with refrigerating unit and formed alloy cast ingot, and this refrigerating unit will ensure that the pressure of cooling circulating water is between 0.1-0.2MPa;
(2) alloy cast ingot is put in the Medium frequency induction crucible on spray carrying equipment and carried out secondary smelting, smelting temperature is
1100-1300 DEG C, smelting time 40-60 minute, obtains secondary smelting liquation; Secondary smelting liquation is poured in the tundish through preheating, obtained steel Shui, tundish will be selected the higher pressure with increase steel Shui, improves the density of band; Steel Shui is sprayed onto on high speed rotating copper rod by the nozzle of tundish bottom, in copper rod, be provided with super cooling system, ensure that speed of cooling is at 1,500,000 spend/S of degree/S-170 ten thousand, spray the thick amorphous soft-magnetic alloy band of thickness at 50-60um by the distance of adjusting between nozzle and copper rod, obtain thick amorphous soft-magnetic alloy.
3. the preparation method of thick amorphous soft-magnetic alloy according to claim 2, is characterized in that: described step (2) middle preheating temperature is 1200-1300 DEG C.
4. the preparation method of thick amorphous soft-magnetic alloy according to claim 2, is characterized in that: the described step (2) height of middle tundish is 280-300mm.
5. the application of thick amorphous soft-magnetic alloy as claimed in claim 1 aspect the special-shaped iron core of manufacture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136787A (en) * | 2018-07-20 | 2019-01-04 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800109A (en) * | 2009-12-09 | 2010-08-11 | 青岛云路新能源科技有限公司 | Iron-based amorphous alloy with high soft magnet performance and low cost and manufacturing method thereof |
| CN101853726A (en) * | 2010-05-17 | 2010-10-06 | 南京新康达磁业有限公司 | Soft magnetic material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800109A (en) * | 2009-12-09 | 2010-08-11 | 青岛云路新能源科技有限公司 | Iron-based amorphous alloy with high soft magnet performance and low cost and manufacturing method thereof |
| CN101853726A (en) * | 2010-05-17 | 2010-10-06 | 南京新康达磁业有限公司 | Soft magnetic material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136787A (en) * | 2018-07-20 | 2019-01-04 | 山东海瑞得新材料科技有限公司 | A kind of Fe-based amorphous band and preparation method thereof |
| CN109136787B (en) * | 2018-07-20 | 2021-07-09 | 山东海瑞得新材料科技有限公司 | Iron-based amorphous strip and preparation method thereof |
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