CN2490528Y - Neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace - Google Patents
Neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace Download PDFInfo
- Publication number
- CN2490528Y CN2490528Y CN 01248403 CN01248403U CN2490528Y CN 2490528 Y CN2490528 Y CN 2490528Y CN 01248403 CN01248403 CN 01248403 CN 01248403 U CN01248403 U CN 01248403U CN 2490528 Y CN2490528 Y CN 2490528Y
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- heater
- heating chamber
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- rare earth
- permanent
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Abstract
The utility model relates to a specialized equipment for producing neodymium ferroboron rare earth permanent-magnetic material, in particular to a neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace, which comprises a furnace body and a heating chamber arranged inside the furnace body and the jet nozzle arranged on the wall of the heating chamber. The utility model is characterized in that: one side of the furnace body is provided with a valve, and the furnace body is connected with a sealed manipulation box with a vacuum pipe through the valve. The utility model aims to effectively solve the problems of product such as oxidation, poor evenness and uniformity of cooling.
Description
The utility model relates to a kind of special equipment of producing Nd-Fe-B rare earth permanent magnetic material.
The vacuum sintering furnace that domestic production at present is used for permanent-magnet rare-earth NdFeB alloy adopts horizontal type structure, and front end opens the door, and heating chamber is the garden column-shaped barrel of horizontal positioned.The structure of air-cooled heat exchange has two kinds: a kind of is the rear portion that built-in blower fan, heat exchanger are installed in body of heater, a kind of outside that is blower fan and heat exchanger at body of heater.Cooling air is blown into from the rear portion of body of heater, through air devider, is blown in the heating chamber by one group of pipeline.Present sintering furnace all is to open fire door earlier in operation, and the material of packing into vacuumizes the back heating, opens fire door after the cooling and takes out material.Because very easily oxidation of permanent-magnet rare-earth NdFeB alloy, therefore, all there is the defective of two aspects in present sintering furnace: the one, and can not make material keep isolated with air always, cause the material oxidation, properties of product are low; The 2nd, inhomogeneous cooling is even, and consistency of product is poor.
At above problem, the utility model provides a kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace, and its purpose is to solve the product oxidation effectively, the problem that aspects such as cooling uniformity and consistency difference exist.
The utility model comes to be realized by the following technical programs:
A kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace, it includes body of heater, the heating chamber that is provided with, and is provided with nozzle on the wall of heating chamber in body of heater, it is characterized in that: the side at body of heater is provided with valve, and body of heater connects with a seal operation case that has vacuum line by valve.
Gloves seat place on the seal operation case is provided with and vacuumizes protective cover, and vacuumizing protective cover is to be connected with vacuum line by vacuum hose.
The bottom of seal operation case is provided with dumper.
In body of heater, be provided with heat-proof device and annular passage.
Advantage of the present utility model and effect:
Technical scheme provided by the utility model can solve the product oxidation well, the problem that aspects such as cooling uniformity and consistency difference exist.Nd-Fe-B rare earth permanent magnetic material is very easily oxidation when sinter molding; on each process procedure of producing Nd-Fe-B rare earth permanent magnetic material, all need under vacuum state or protective atmosphere, carry out; the designed seal operation case of the utility model can be operated under protective atmosphere, can operate under vacuum state again.When only the seal operation case being filled protective gas, use protective gas that the air displacement in the seal operation case is fallen, need to consume a large amount of protective gas, and after the seal operation case vacuumized, charge into protective gas again, can save a large amount of protective gas.
Another characteristics of the present utility model are that the external Design at heating chamber has an annular passage, and between annular passage and heating chamber inner chamber, nozzle is housed, the cooling air that cooling blower is blown into heating chamber is blown in the heating chamber by nozzle, cooling rate is even, consistency of product is good, reduced the loss of heat simultaneously, energy savings.
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 has the structural representation of the seal operation case of vacuum line for the utility model;
Accompanying drawing 3 is the structural representation of the utility model seal operation case.
The utility model is specifically described by execution mode below in conjunction with accompanying drawing:
Sintering furnace provided by the utility model is that the rear design at road 1 has a seal operation case 7, and be connected with body of heater 1 by a valve 6, the other end design of seal operation case 7 has the input and output material valve, but live-roller 11 transported materials that transmission mechanism links to each other are housed in the case, also design in the seal operation case 7 truck 10 is arranged, under the drive of transmission mechanism, can realize charging discharging in body of heater 1.Simultaneously, operation gloves, observation window, operating desk and illuminating lamp also are housed on the seal operation case 7.
The permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace is provided with heating chamber 2, heat-proof device 5 and annular passage 3 in body of heater 1,2 of annular passage 3 and heating chambers are provided with nozzle 4.Side at body of heater 1 is provided with valve 6, and body of heater 1 connects with a seal operation case 7 that has vacuum line 12 by valve 6.The bottom of seal operation case 7 is provided with dumper 10.
Seal-packed material is packed in the seal operation case; vacuumize then, reach certain vacuum degree after, in control box, charge into protective gas; then the packing of material is opened; and be placed in the magazine, be placed on then on the truck, send in the body of heater heating chamber; truck withdraws from; shut valve, vacuumize again, heat-agglomerating, cooling.
Be concrete structure of the present utility model mark below: 1, body of heater, 2, heating chamber, 3, annular passage; 4, nozzle, 5, heat-proof device, 6, vacuum valve; 7, seal operation case, 8, observation window, 9, the operator block set; 10, dumper; 11, transmit the material device, 12, vacuum line, 13, vacuum hose; 14, vacuumize protective cover, 16, valve.
The level of production magnetic energy product of present domestic Nd-Fe-Bo permanent magnet material is about N40, and the highest magnetic energy product also can only reach N45, and can produce the product of N45～N48 by the Nd-Fe-Bo permanent magnet material that the technical scheme that the utility model provides is produced.
Claims (4)
1, a kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace, the heating chamber (2) that it includes body of heater (1), be provided with, and on the wall of heating chamber (2), be provided with nozzle (4) in body of heater (1), it is characterized in that: the side at body of heater (1) is provided with valve (6), and body of heater (1) connects with a seal operation case (7) that has vacuum line (12) by valve (6).
2, a kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace according to claim 1; it is characterized in that: the gloves seat (9) on the seal operation case (7) is located to be provided with and is vacuumized protective cover (14), and to vacuumize protective cover (14) be by vacuum hose (13), be connected with vacuum line (12).
3, a kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace according to claim 1, it is characterized in that: the bottom of seal operation case (7) is provided with dumper (10).
4, a kind of permanent-magnet rare-earth NdFeB alloy vacuum sintering furnace according to claim 1 is characterized in that: be provided with heat-proof device (5) and annular passage (3) in body of heater (1), be provided with nozzle (4) between annular passage (3) and heating chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248403 CN2490528Y (en) | 2001-06-26 | 2001-06-26 | Neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248403 CN2490528Y (en) | 2001-06-26 | 2001-06-26 | Neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490528Y true CN2490528Y (en) | 2002-05-08 |
Family
ID=33659055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248403 Expired - Lifetime CN2490528Y (en) | 2001-06-26 | 2001-06-26 | Neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490528Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801693A (en) * | 2012-11-08 | 2014-05-21 | 沈阳中北通磁科技股份有限公司 | Rare earth permanent magnetic alloy flexible sintering process method |
| CN107321977A (en) * | 2016-04-29 | 2017-11-07 | 沈阳中北通磁科技股份有限公司 | A kind of rare earth permanent magnet vacuum sintering method and vacuum-sintering Equipment for Heating Processing |
| CN114799165A (en) * | 2022-04-28 | 2022-07-29 | 江苏华普干燥工程有限公司 | Box type sintering furnace |
-
2001
- 2001-06-26 CN CN 01248403 patent/CN2490528Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801693A (en) * | 2012-11-08 | 2014-05-21 | 沈阳中北通磁科技股份有限公司 | Rare earth permanent magnetic alloy flexible sintering process method |
| CN103801693B (en) * | 2012-11-08 | 2016-01-06 | 沈阳中北通磁科技股份有限公司 | RE permanent magnetic alloy flexible sintered process |
| CN107321977A (en) * | 2016-04-29 | 2017-11-07 | 沈阳中北通磁科技股份有限公司 | A kind of rare earth permanent magnet vacuum sintering method and vacuum-sintering Equipment for Heating Processing |
| CN107321977B (en) * | 2016-04-29 | 2022-12-23 | 沈阳中北通磁科技股份有限公司 | Rare earth permanent magnet vacuum sintering method and vacuum sintering heat treatment equipment |
| CN114799165A (en) * | 2022-04-28 | 2022-07-29 | 江苏华普干燥工程有限公司 | Box type sintering furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110626 Granted publication date: 20020508 |