CN2501886Y - Vacuum continuous crystallization furnace - Google Patents
Vacuum continuous crystallization furnace Download PDFInfo
- Publication number
- CN2501886Y CN2501886Y CN 01256412 CN01256412U CN2501886Y CN 2501886 Y CN2501886 Y CN 2501886Y CN 01256412 CN01256412 CN 01256412 CN 01256412 U CN01256412 U CN 01256412U CN 2501886 Y CN2501886 Y CN 2501886Y
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- crystallization
- powder
- stove
- vacuum continuous
- continuous crystallization
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Abstract
The utility model relates to a vacuum continuous crystallization furnace belonging to metallurgy powder preparation technique field, which is in particular used for the preparation for the neodymium iron boron and other cryptomere, crystallite alloy powder material. The utility model is characterized in that: a motor(5) drives the crystallization chamber furnace drum(1) to rotate, and the cavity of the furnace drum is provided with a spiral bar(2), and the outside of the furnace drum is the electric heating(3) and insulation layer(4), and on the discharge place, the wave tube(7) is connected with powder cooling collecting tank(6). The utility model has the advantages that: the temperature rise is rapid in the crystallization chamber, and the powder body is rapidly heated and cooled from the feed port to the discharge port, which can ensure the synchronism for the alloy powder structure changing and the tiny uniformity of the grain size during the crystallization process, thereby avoiding the producing of big grain and oxygenation.
Description
Technical field:
The utility model is a kind of vacuum continuous crystallization stove, belongs to the metallurgical powder preparing technical field, is specially adapted to the preparation of neodymium iron boron and other thin crystalline substances, microcrystallizing alloy powdered material.
Background technology:
The preparation metallurgical powder particularly prepares NdFeB magnetic powder, through batching melting, fast quenching, obtains the fast quenching powder, and quenched powder must carry out the crystallization processing before the compacting bonded permanent magnet.Crystallization furnace adopts resistance at stove tube center, to the magnetic heating crystallization on the travelling belt that rotates around the resistance, and magnetic is sent to discharge port from opening for feed, can obtain the crystallization powder.Its weak point is:
1, travelling belt adopts the 1Gr18Ni9Ti material to make, and because of the sensitized zone of crystallization temperature near the 1Gr18Ni9Ti material, its conveyor materials crystalline phase easily forms poor chromium, and the life-time service travelling belt hardens easily, chaps, fractures, and causes damage, and influence is produced.
2, magnetic is relative immobilized on travelling belt, and powder is heated inhomogeneous, influences product crystallization quality.
3, the powder collection case is open with being connected of crystallization furnace discharge port, can not guarantee the synchronism of crystallization pulverized structure transformation and the tiny homogeneity of grain fineness number.
Summary of the invention:
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and provides a kind of and heat fast and good uniformity, vacuum continuous crystallization stove that the crystallization quality is high.
The purpose of this utility model can reach by following measure: the rotation of driven by motor stove tube, and thorax has spiral bar in the stove tube, and the stove tube is outward heating resistor and thermal insulation layer, and the discharge port place connects powder cooling collection box by corrugated tube.
The purpose of this utility model can also reach by following measure: the stove tube is positioned on the two pairs of rolling brackets in front and back, and roller and motor are installed on the support of horizon adjustable angle; Two foot bottoms of opening for feed side stand all are equipped with jackscrew; Discharge port has segregaion valve, and the powder cooling collection box that is attached thereto is that stainless steel seals double-deck water cooling casing; Powder cooling collection box is that two stainless steels that are placed in rotary disk and interchangeable position seal double-deck water cooling casing.
The utility model is compared prior art and is had following advantage:
The crystallization furnace opening for feed is enclosed construction with storage tank, crystallization furnace discharge port with powder being connected of collection box of cooling; can realize vacuumizing or filling the processing requirement of row's shielding gas; the crystallization chamber of in electric heater, rotating; thorax is the spiral bar structure in its cylindrical shell, can stir the powder thermally equivalent and advance powder to realize continuous production.Crystallization chamber quick heating, powder from the opening for feed to the discharge port, therein ceaselessly the motion, the quick thermally equivalent of powder, cooling fast can guarantee the synchronism of the powdered alloy structural transformation in the crystallization process and the tiny homogeneity of grain fineness number, avoid the generation and the oxidation of big crystal grain.
Description of drawings: accompanying drawing is the utility model structure iron
Wherein: 1 stove tube, 2 spiral bars, 3 electric heaters; 4 thermal insulation layers; 5 motors;
6 collection boxs; 7 corrugated tubes; 8 rotary disks; 9 supports; 10 rolling brackets;
11 segregaion valves; 12 jackscrews.
Embodiment:
As shown in the figure: the stove tube (1) that the high temperature resistant stainless steel pipe is made is positioned on the two pairs of rolling brackets in front and back (10), roller and motor are installed on the support (9) at adjustable angle of inclination, two foot bottoms of opening for feed side stand (9) all are equipped with jackscrew (12), rotation jackscrew (12), adjustable support (9) reaches suitable angle of inclination, realizes regulating the time that powder stops in stove tube (1).Drive stove tube (1) rotation by motor (5) through chain, thorax has spiral bar (2) in the stove tube, the stove tube is outward electric heater (3) and thermal insulation layer (4), discharge port has corrugated tube (7), segregaion valve (11), the powder that is attached thereto cooling collection box (6) is that two stainless steels that are placed in rotary disk (8) and can not stop to produce quick transposition seal double-deck water cooling collection tank, and vacuum meter, tensimeter and inflation, venting, safety valve, recirculated cooling water joint are housed on the casing (6).
During work, powder enters in the stove tube that is rotated by driven by motor from opening for feed, evenly roll to move with the spiral bar on the burner hearth and be sent to discharge port, reach fast and evenly heat, fall into the cooling collection box by the powder after the separation valve door crystallization, in casing, promptly cooled off fast, guaranteed the synchronism of crystallization powder structure transformation and the tiny homogeneity of grain fineness number.
Claims (5)
1. rotary type vacuum continuous crystallization stove, comprise stove tube and electric heater, the motor rotation is sent to discharge port with powder from opening for feed and reaches crystallization, it is characterized in that: motor (5) drives crystallization chamber stove tube (1) rotation, on the thorax spiral bar (2) is arranged in the stove tube, the stove tube is outward electrically heated (3) and thermal insulation layer (4), and the discharge port place connects powder cooling collection box (6) by corrugated tube (7).
2. vacuum continuous crystallization stove as claimed in claim 1 is characterized in that crystallization chamber stove tube (1) is positioned on the two pairs of rolling brackets in front and back (10), and roller and motor are installed on the support (9) at adjustable angle of inclination.
3. vacuum continuous crystallization stove as claimed in claim 1 or 2, the support (9) that it is characterized in that adjustable angle of inclination are that two foot bottoms at the opening for feed side stand all are equipped with jackscrew (12).
4. vacuum continuous crystallization stove as claimed in claim 1 is characterized in that discharge port has segregaion valve (11), and the powder that is attached thereto cooling collection box (6) is that stainless steel seals double-deck water cooling casing.
5. as claim 1 or 4 described vacuum continuous crystallization stoves, it is characterized in that powder cooling collection box (6) is that two identical stainless steels seal double-deck water cooling casing, all be placed in rotary disk (8) and go up and interchangeable position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256412 CN2501886Y (en) | 2001-10-29 | 2001-10-29 | Vacuum continuous crystallization furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256412 CN2501886Y (en) | 2001-10-29 | 2001-10-29 | Vacuum continuous crystallization furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2501886Y true CN2501886Y (en) | 2002-07-24 |
Family
ID=33665382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256412 Expired - Fee Related CN2501886Y (en) | 2001-10-29 | 2001-10-29 | Vacuum continuous crystallization furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2501886Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780977B (en) * | 2010-02-13 | 2012-09-05 | 张保兴 | Energy-saving device for preparing nano-scale lead tetraoxide (red lead) |
| CN103205543A (en) * | 2013-05-05 | 2013-07-17 | 沈阳中北真空磁电科技有限公司 | Vacuum heat treatment method and equipment for permanent NdFeB rare earth magnet device |
| CN103971924A (en) * | 2014-05-07 | 2014-08-06 | 黟县越驰科技电子有限公司 | Magnetic powder crystallizing furnace |
| CN105954074A (en) * | 2016-04-26 | 2016-09-21 | 北京科技大学 | Device for high-throughput preparation of multi-component gradient metal materials |
| CN106111979A (en) * | 2016-08-31 | 2016-11-16 | 广东省钢铁研究所 | A kind of automatic annealing device of magnetically soft alloy powder body decomposed ammonia |
-
2001
- 2001-10-29 CN CN 01256412 patent/CN2501886Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780977B (en) * | 2010-02-13 | 2012-09-05 | 张保兴 | Energy-saving device for preparing nano-scale lead tetraoxide (red lead) |
| CN103205543A (en) * | 2013-05-05 | 2013-07-17 | 沈阳中北真空磁电科技有限公司 | Vacuum heat treatment method and equipment for permanent NdFeB rare earth magnet device |
| CN103971924A (en) * | 2014-05-07 | 2014-08-06 | 黟县越驰科技电子有限公司 | Magnetic powder crystallizing furnace |
| CN103971924B (en) * | 2014-05-07 | 2016-05-25 | 黟县越驰科技电子有限公司 | Magnetic crystallization furnace |
| CN105954074A (en) * | 2016-04-26 | 2016-09-21 | 北京科技大学 | Device for high-throughput preparation of multi-component gradient metal materials |
| CN105954074B (en) * | 2016-04-26 | 2018-08-03 | 北京科技大学 | A kind of high throughput prepares the device of gradient multicomposition composite metal material |
| CN106111979A (en) * | 2016-08-31 | 2016-11-16 | 广东省钢铁研究所 | A kind of automatic annealing device of magnetically soft alloy powder body decomposed ammonia |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU HANJI INVESTMENT CO., LTD. Free format text: FORMER OWNER: ZHOUHE NEW-MATERIALCO., LTD., CHENGDU Effective date: 20060421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060421 Address after: Ken Plaza 308 No. 610017 Sichuan province Chengdu City Shuncheng Street 33 floor GH block Patentee after: Hanji Investment Co., Ltd., Chengdu Address before: 610041, No. three, 28 south section of Ring Road, Chengdu, Sichuan Patentee before: Zhonghe New Materials Co Ltd, Chengdu |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |