CN2596295Y - Vacuum smelting fast coagulation furnace - Google Patents
Vacuum smelting fast coagulation furnace Download PDFInfo
- Publication number
- CN2596295Y CN2596295Y CN 03210982 CN03210982U CN2596295Y CN 2596295 Y CN2596295 Y CN 2596295Y CN 03210982 CN03210982 CN 03210982 CN 03210982 U CN03210982 U CN 03210982U CN 2596295 Y CN2596295 Y CN 2596295Y
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- CN
- China
- Prior art keywords
- vacuum
- drum
- vacuum smelting
- crucible
- alloy
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- Expired - Lifetime
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Abstract
The utility model discloses a vacuum smelting fast coagulation furnace which is used for producing neodymium-iron-boron rare-earth permanent magnet alloy materials and rare-earth hydrogen storing alloy materials. The vacuum smelting fast coagulation furnace is composed of a vacuum system, a furnace casing, a coil of an induction heater, a crucible, a pouring box, a rotating wheel, a drum, etc., wherein, the coil of the induction heater, the crucible, the pouring box, the rotating wheel, the drum, etc. are positioned in the vacuum furnace casing; a spiral sheet is fixedly arranged in the drum; the outer wall of the drum is coated with a cooling device; the drum can rotate in the forward direction or in the reverse direction and can be aslant arranged, with an angel formed with the horizontal line. Alloy sheets can be quickly and uniformly cooled by the structure; the microstructure and the exterior shape are ideal, the width of columnar crystal is uniform, the size of a crystal grain is smaller, and the alloy flakes can not have agglomeration and conglobation. The utility model has the integrated appearances of big sheets, high magnetic energy product, easy pulverization, convenient material discharge and the realization of mass production; various products which are manufactured by the alloy sheets have very good performance.
Description
Technical field
The utility model relates to a kind of vacuum smelting fast solidification stove of producing permanent-magnet rare-earth NdFeB alloy material and rare earth hydrogen storage alloy material.
Background technology
Over past ten years, the vacuum melting technology development is very fast, the patent that the design people once applied for (application number 01241236.8) has been announced a kind of vacuum smelting fast solidification stove, be to produce main a kind of vacuum smelting fast solidification stove of using in permanent-magnet rare-earth NdFeB alloy material and the rare earth hydrogen storage alloy material at present, it mainly is made up of vacuum system, feeder, vacuum furnace shell, crucible, tundish, chill roll and rotating disk etc.Its permanent-magnet rare-earth NdFeB alloy material and rare earth hydrogen storage alloy material are finished in vacuum smelting fast solidification stove like this: under vacuum environment or protective atmosphere; make metal and alloy material fusing in the Frequency Induction Heating mode; and liquation is cast on the chill roll of rotation; liquation is cooled off rapidly; crystallize into thin slice, continue cooling on the rotating disk below thin slice drops to.Though this vacuum smelting fast solidification stove has solved the problem of the inhomogeneous and incompatible production in enormous quantities of alloy composition that general vacuum melting furnace exists, also has following shortcoming:
1. after getting rid of flakiness, use the rotating disk cooling, cooldown rate is relatively slow, and the microstructure of as cast condition rapid hardening alloy sheet is also not ideal, and for example: the homogeneous grain size of column crystal is relatively poor, and the column crystal width is inhomogeneous; Because cooldown rate is relatively slow, crystallite dimension is relatively large.
2. because cooldown rate is slow, and the thin slice that throws away does not also solidify fully, just enter in the collector,, form the phenomenon of reuniting, luming so cause thin slice to bond together.
3. because the rotating disk fast rotational is smashed thin slice, the thin slice that obtains is more broken relatively.
4. because the microstructure of rapid hardening thin slice is relatively poor relatively, have the phenomenon of reunion, caking to take place again and thin slice more in small, broken bits, so the product that makes with this thin slice, as: Nd-Fe-B permanent magnetism, performances such as hydrogen bearing alloy are relatively low.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of cooldown rate fast and even, the unimpeded vacuum smelting fast solidification stove of discharging on the basis of above-mentioned vacuum smelting fast solidification stove.
In order to solve the problems of the technologies described above, the utility model is made up of vacuum system, vacuum furnace shell, induction heater coils, crucible, tundish, runner and cylinder etc., induction heater coils, crucible, tundish, runner, cylinder etc. are positioned at the vacuum drying oven shell, induction heater coils be wrapped in crucible around, tundish is positioned at the side of crucible, runner is positioned at the side-lower of tundish, and cylinder is positioned at the side of runner; Install flight in the cylinder; Cylinder outer wall coats cooling device; Cylinder can rotate under the drive of transmission mechanism forward or backwards, and cylinder can also be obliquely installed with horizontal line is angled.
Owing to adopted cylinder and cylinder outer wall to coat cooling device, be fixed with the flight of stirring action simultaneously in the cylinder, make alloy sheet can be rapidly, the uniform cooling.The thin slice that obtains has comparatively ideal microstructure and outer shape, as: the column crystal width is even, and crystallite dimension is less; Caking, the aggregation phenomenon of alloy sheet have been eliminated; The alloy sheet that obtains is very complete, has large stretch of outward appearance; The magnetic energy product height is easily pulverized; The various products that utilize this alloy sheet to make have extraordinary performance.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
In Fig. 1 as can be seen; after alloy material joined crucible 1; sealing vacuum furnace shell 3; start vacuum system 2; whole body of heater is under vacuum state or the protective atmosphere; after the energising; be wrapped in crucible 1 induction heater coils 11 all around and begin heating; under Medium frequency induction; alloy material melted by heat in the crucible 1; make melted alloy liquation flow to tundish 10 and dropped on the runner 4 that is arranged on the tundish side-lower by the angle of adjusting crucible 1; be connected with the cooling medium of circulation in the runner 4, the alloy liquation cooled off and the formation alloy sheet rapidly, the sheet alloy sheet is thrown in the cylinder 9 under the centrifugal action of runner 4 generations of rotation; cylinder 9 outer walls coat cooling device 6 and have been fixed with the flight 7 of stirring action within it on the wall; alloy sheet in the cylinder 9 is ceaselessly stirred, thereby reach rapid cooling purpose, by adjusting the direction of rotation of cylinder 9; under the promotion of flight 7, can discharge the good alloy sheet of cooling easily.
Cylinder 9 of the present utility model is connected with the transmission mechanism 8 that the body of heater outside can rotate forward or backwards, under the drive of transmission mechanism 8, cylinder 9 can rotate forward or backwards, and rotating speed can be regulated, for the convenience of discharging, this cylinder 9 can also be obliquely installed with horizontal line is angled.
Cooling device 6 of the present utility model can be a cooling jacket, also can be cooling tube, behind the feeding cooling medium, can both reach cooling purpose equally, and its cooling medium can be water, freon, liquid nitrogen etc.
Be provided with heater in the tundish 10 of the present utility model, its objective is to make the alloy liquation in flow process, avoid cooling, to influence crystallization effect.
The utility model can realize that continuous charging is to increase work efficiency after loading onto charge door on the vacuum furnace shell 3.
Claims (6)
1. vacuum smelting fast solidification stove, comprise vacuum system, vacuum furnace shell, induction heater coils, crucible, tundish and runner, described induction heater coils, crucible, tundish and runner are positioned at described vacuum furnace shell, it is characterized in that runner (4) side in the vacuum furnace shell (3) is provided with cylinder (9), cylinder (9) outer wall coats cooling device (6).
2. a kind of vacuum smelting fast solidification stove according to claim 1 is characterized in that installing in the described cylinder (9) flight (7).
3. a kind of vacuum smelting fast solidification stove according to claim 1 is characterized in that described cooling device (6) is a cooling jacket.
4. a kind of vacuum smelting fast solidification stove according to claim 1 is characterized in that described cooling device (6) is a cooling tube.
5. a kind of vacuum smelting fast solidification stove according to claim 1 is characterized in that described cylinder (9) is connected with the transmission mechanism that can rotate forward or backwards (8).
6. a kind of vacuum smelting fast solidification stove according to claim 1 is characterized in that described cylinder (9) tiltable setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210982 CN2596295Y (en) | 2003-01-17 | 2003-01-17 | Vacuum smelting fast coagulation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210982 CN2596295Y (en) | 2003-01-17 | 2003-01-17 | Vacuum smelting fast coagulation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596295Y true CN2596295Y (en) | 2003-12-31 |
Family
ID=33754201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210982 Expired - Lifetime CN2596295Y (en) | 2003-01-17 | 2003-01-17 | Vacuum smelting fast coagulation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596295Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580819A (en) * | 2018-05-05 | 2018-09-28 | 沈阳中北真空技术有限公司 | A kind of vacuum induction melting slab stove, alloy casting piece manufacturing method and alloy casting piece |
-
2003
- 2003-01-17 CN CN 03210982 patent/CN2596295Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580819A (en) * | 2018-05-05 | 2018-09-28 | 沈阳中北真空技术有限公司 | A kind of vacuum induction melting slab stove, alloy casting piece manufacturing method and alloy casting piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Zhong Bei Tong Ci Technologies Co., Ltd. Assignor: Shenyang Zhongbei Vacuum Technology Co., Ltd. Contract fulfillment period: 2006.1.9 to 2013.1.17 Contract record no.: 2009210000107 Denomination of utility model: Vacuum smelting quick condensation furnace Granted publication date: 20031231 License type: Exclusive license Record date: 20090408 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.1.9 TO 2013.1.17; CHANGE OF CONTRACT Name of requester: SHENYANG ZHONGBEI TONGCI SCIENCE CO., LTD. Effective date: 20090408 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Zhong Bei Tong Ci Technologies Co., Ltd. Assignor: Shenyang Zhongbei Vacuum Technology Co., Ltd. Contract fulfillment period: 2007.1.9 to 2013.1.16 Contract record no.: 2009210000107 Denomination of utility model: Vacuum smelting quick condensation furnace Granted publication date: 20031231 License type: Exclusive license Record date: 20090408 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.1.9 TO 2013.1.16; CHANGE OF CONTRACT Name of requester: SHENYANG ZHONGBEI TONGCI SCIENCE CO., LTD. Effective date: 20090408 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130117 Granted publication date: 20031231 |