CN104550986A - High-vacuum rapid quenching furnace - Google Patents
High-vacuum rapid quenching furnace Download PDFInfo
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- CN104550986A CN104550986A CN201410837632.3A CN201410837632A CN104550986A CN 104550986 A CN104550986 A CN 104550986A CN 201410837632 A CN201410837632 A CN 201410837632A CN 104550986 A CN104550986 A CN 104550986A
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- crucible
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Abstract
The invention relates to a rapid quenching furnace, in particular to a rapid quenching furnace for manufacturing neodymium-iron-boron magnetic powder. The rapid quenching furnace comprises a furnace body, a vacuum system, a power supply system, a cooling channel and a finished product collecting bucket. Crucibles and a rapid quenching roll are arranged in the furnace body, a sensing coil is arranged above the rapid quenching roll and can externally cover the crucibles, the crucibles are mounted on a fixing displacement device, and a vacuum degree of the vacuum system in the furnace body is higher than 3.4X10<-2>pa when the vacuum system works. The rapid quenching furnace has the advantages that the structure of the rapid quenching furnace is simplified, and accordingly technological processes can be optimized.
Description
Technical field
The present invention relates to a kind of quick quenching furnace.Especially a kind of quick quenching furnace producing NdFeB magnetic powder.
Background technology
In bonded permanent magnet production, the most frequently used raw material are NdFeB magnetic powders; therefore the technology of preparing of NdFeB magnetic powder is the manufacturing key technology of current magnet; under prior art, the chances are for the preparation flow of NdFeB magnetic powder: first mixed by a certain percentage by the raw materials such as neodymium iron boron; then high-temperature fusion becomes aluminium alloy; block foundry alloy is cooled in cooling frame; then block foundry alloy is placed on melting in the crucible in quick quenching furnace; and under the protection of argon gas, use overflow quick quenching technique to obtain alloy thin band, be broken into magnetic by Crystallizing treatment.Crystallizing treatment under prior art, mainly in order to make magnetic possess even, tiny nanocrystalline structure.But the process so preparing magnetic just contains rapid quenching and Annealing Crystallization twice heat treatment, and this have impact on the production efficiency of magnetic to a certain extent.Need in addition to inject argon gas in fast quenching process in quick quenching furnace, in practical operation, the preparation of argon gas also very not easily, which increases the production cost of equipment.Magnet producers are finding the quick quenching furnace that a kind of structure is simple, technological process is few.
Summary of the invention
The demand of the quick quenching furnace that people are simple to structure in order to meet, technological process is few, the invention provides a kind of structure simple, the high vacuum quick quenching furnace of process optimization, concrete technical scheme is as follows:
A kind of high vacuum induction furnace, comprise body of heater, vacuum system, electric power system, cooling duct and finished product collecting vessel, crucible and fast quenching roller is provided with in described body of heater, induction coil is provided with above described fast quenching roller, described induction coil can cover in crucible outward, described crucible is arranged on fixing shift unit, and the vacuum in described body of heater during vacuum system work is greater than 3.4*10
-2pa.
Above-mentioned high vacuum quick quenching furnace, wherein said fixing shift unit comprises crucible fixed head, elevating mechanism and rotating mechanism, and described crucible fixed head is arranged on the fixed axis of elevating mechanism, and described fixed axis is also connected with rotating mechanism.
Above-mentioned high vacuum quick quenching furnace, wherein said crucible bottom is provided with spout hole.
Above-mentioned high vacuum induction furnace, described vacuum system comprises the air compressor machine unit and control system that are connected by pipeline with body of heater.
Advantage of the present invention is: 1, simplify quick quenching furnace structure, and compared with the quick quenching furnace of prior art, the environment of high vacuum no longer needs argon gas anti-oxidation, therefore no longer needs to inject compressing device, simplifies the structure, reduces manufacturing cost.2, optimize the technological process of production, the technology of fast quenching under employing high vacuum environment, magnetic does not need this process of Annealing Crystallization, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the principle schematic of high vacuum quick quenching furnace of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, foregoing invention technical scheme is further elaborated:
A kind of high vacuum induction furnace, comprise body of heater 1, vacuum system 2, described vacuum system 2 comprises the air compressor machine unit and control system that are connected by pipeline with body of heater, electric power system 3, cooling duct 4 and finished product collecting vessel 5, be provided with crucible 6 and fast quenching roller 7 in described body of heater 1, be provided with induction coil 8 above described fast quenching roller 13, described induction coil 8 can cover in outward crucible 6, described crucible 6 is arranged on fixing shift unit 9, and vacuum when described vacuum system 2 works is greater than 3.4*10
-2pa.Operationally, the crucible 6 that foundry alloy is housed is transported to the inside of induction coil 8 by fixing shift unit 9, foundry alloy heating and melting is become aluminium alloy by the induction coil 8 after energising, and aluminium alloy overflows on fast quenching roller 7 by crucible 6, and aluminium alloy fast quenching on fast quenching roller 7 becomes alloy thin band.Body of heater 6 inner chamber will guarantee that vacuum is greater than 3.4*10
-2the high vacuum environment of pa, directly can obtain the magnetic possessing even, tiny nanocrystalline structure characteristic after such guarantee fast quenching, the magnetic prepared through high vacuum quick quenching furnace of the present invention does not need Annealing Crystallization process just can meet the requirement of magnet manufacture.In addition, because vacuum is very high, so the oxygen content of body of heater 6 inside is few, the quality of magnetic can not be affected because of oxidation, therefore just not need to inject anti-oxidation argon gas.
Above-mentioned high vacuum quick quenching furnace, wherein said fixing shift unit 9 comprises crucible fixed head 91, elevating mechanism 93 and rotating mechanism 95, described crucible fixed head 91 is arranged on the fixed axis 931 of elevating mechanism 93, and described fixed axis 931 is also connected with rotating mechanism 95.In order to also reduce production cost as far as possible while high vacuum environment in guarantee body of heater 6, that just must reduce the number of times of blowing as far as possible.Therefore once can put into multiple crucible 6 in quick quenching furnace of the present invention, they carry out rotation successively, until the foundry alloy in all crucibles 6 is all produced and completely just needed to open fire door and carry out blowing again.Concrete, described crucible fixed head 91 is circular, described crucible 6 is distributed on crucible fixed head 91 centered by the center of circle of crucible fixed head 91, after crucible 6 aluminium alloy being positioned at induction coil 8 inside uses, elevating mechanism 93 moves up, crucible 6 is pulled out induction coil 8, rotated to an angle by rotating mechanism 95 again and this crucible 6 shifted out, meanwhile, the crucible 6 that another is equipped with foundry alloy moves to above induction coil 8 just, at this moment elevating mechanism 93 moves down again, just achieves the alternately conversion between two crucibles 6.
Above-mentioned high vacuum quick quenching furnace, is provided with spout hole bottom wherein said crucible 6.In view of special construction of the present invention, bottom crucible 6, directly open spout hole, aluminium alloy flows directly on fast quenching roller 7, simple and convenient.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (4)
1. a high vacuum induction furnace, comprise body of heater, vacuum system, electric power system, cooling duct and finished product collecting vessel, it is characterized in that: in described body of heater, be provided with crucible and fast quenching roller, induction coil is provided with above described fast quenching roller, crucible is covered in outside described induction coil, described crucible is arranged on fixing shift unit, and the vacuum in described body of heater during vacuum system work is greater than 3.4*10
-2pa.
2. high vacuum induction furnace as claimed in claim 1, it is characterized in that: described fixing shift unit comprises crucible fixed head, elevating mechanism and rotating mechanism, described crucible fixed head is arranged on the fixed axis of elevating mechanism, and described fixed axis is also connected with rotating mechanism.
3. high vacuum induction furnace as claimed in claim 1 or 2, is characterized in that: described crucible bottom is provided with spout hole.
4. high vacuum induction furnace as claimed in claim 3, is characterized in that: described vacuum system comprises the air compressor machine unit and control system that are connected by pipeline with body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837632.3A CN104550986A (en) | 2014-12-29 | 2014-12-29 | High-vacuum rapid quenching furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837632.3A CN104550986A (en) | 2014-12-29 | 2014-12-29 | High-vacuum rapid quenching furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550986A true CN104550986A (en) | 2015-04-29 |
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ID=53068644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410837632.3A Pending CN104550986A (en) | 2014-12-29 | 2014-12-29 | High-vacuum rapid quenching furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727672A (en) * | 2023-08-11 | 2023-09-12 | 包头市科锐微磁新材料有限责任公司 | Vacuum rapid quenching furnace roller shaft structure and three-way moving mechanism comprising same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265682A (en) * | 1978-09-19 | 1981-05-05 | Norboru Tsuya | High silicon steel thin strips and a method for producing the same |
| JPH01205402A (en) * | 1988-02-10 | 1989-08-17 | Kobe Steel Ltd | Manufacture of rare earth fe-b magnetic powder |
| CN1068056A (en) * | 1992-07-08 | 1993-01-20 | 冶金工业部钢铁研究总院 | Vacuum quick quenching furnace |
| JPH0547538A (en) * | 1991-08-07 | 1993-02-26 | Tdk Corp | Manufacture of superthin soft magnetic alloy thin strip and magnetic core using the same |
| CN2282950Y (en) * | 1996-11-29 | 1998-06-03 | 中国科学院金属研究所 | Vacuum quick hardening furnace |
| CN2450221Y (en) * | 2000-11-03 | 2001-09-26 | 罗阳 | Permanent-magnet material rotary quenching fast setting device |
| CN1316308A (en) * | 2001-02-26 | 2001-10-10 | 沈阳工业大学 | Planar slip casting technology for making powder and its technological equipment |
| CN2487474Y (en) * | 2001-04-18 | 2002-04-24 | 孙宝玉 | Vacuum quick hardening furnace |
| CN204545418U (en) * | 2014-12-29 | 2015-08-12 | 东莞市海天磁业有限公司 | high vacuum quick quenching furnace |
-
2014
- 2014-12-29 CN CN201410837632.3A patent/CN104550986A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265682A (en) * | 1978-09-19 | 1981-05-05 | Norboru Tsuya | High silicon steel thin strips and a method for producing the same |
| JPH01205402A (en) * | 1988-02-10 | 1989-08-17 | Kobe Steel Ltd | Manufacture of rare earth fe-b magnetic powder |
| JPH0547538A (en) * | 1991-08-07 | 1993-02-26 | Tdk Corp | Manufacture of superthin soft magnetic alloy thin strip and magnetic core using the same |
| CN1068056A (en) * | 1992-07-08 | 1993-01-20 | 冶金工业部钢铁研究总院 | Vacuum quick quenching furnace |
| CN2282950Y (en) * | 1996-11-29 | 1998-06-03 | 中国科学院金属研究所 | Vacuum quick hardening furnace |
| CN2450221Y (en) * | 2000-11-03 | 2001-09-26 | 罗阳 | Permanent-magnet material rotary quenching fast setting device |
| CN1316308A (en) * | 2001-02-26 | 2001-10-10 | 沈阳工业大学 | Planar slip casting technology for making powder and its technological equipment |
| CN2487474Y (en) * | 2001-04-18 | 2002-04-24 | 孙宝玉 | Vacuum quick hardening furnace |
| CN204545418U (en) * | 2014-12-29 | 2015-08-12 | 东莞市海天磁业有限公司 | high vacuum quick quenching furnace |
Non-Patent Citations (1)
| Title |
|---|
| 石富: "《稀土永磁材料制备技术》", 31 January 2007 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727672A (en) * | 2023-08-11 | 2023-09-12 | 包头市科锐微磁新材料有限责任公司 | Vacuum rapid quenching furnace roller shaft structure and three-way moving mechanism comprising same |
| CN116727672B (en) * | 2023-08-11 | 2023-10-20 | 包头市科锐微磁新材料有限责任公司 | Vacuum rapid quenching furnace roller shaft structure and three-way moving mechanism comprising same |
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Application publication date: 20150429 |
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