CN202367198U - Antioxidant adding device - Google Patents
Antioxidant adding device Download PDFInfo
- Publication number
- CN202367198U CN202367198U CN2011205459434U CN201120545943U CN202367198U CN 202367198 U CN202367198 U CN 202367198U CN 2011205459434 U CN2011205459434 U CN 2011205459434U CN 201120545943 U CN201120545943 U CN 201120545943U CN 202367198 U CN202367198 U CN 202367198U
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- CN
- China
- Prior art keywords
- iron boron
- neodymium iron
- oxidant
- antioxidant
- material powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an antioxidant adding device, which comprises an antioxidant storage tank, wherein the antioxidant storage tank is communicated with a pressurized nitrogen input tube with a control valve; and the antioxidant addition device is characterized in that: a box cover-shaped movable connecting block of which the inner diameter is matched with that of a tank opening at the upper end of a neodymium iron boron powder tank is arranged on the neodymium iron boron powder tank; a cavity is formed inside the connecting block; the bottom of the cavity is provided with a bottom cover plate; 10 to 200 pores are formed on the bottom cover plate; an output tail end of an antioxidant output tube in the antioxidant storage tank is communicated with the cavity of the connecting block through the control valve; and an antioxidant enters the cavity of the connecting block, is atomized through the pores on the bottom cover plate and enters the neodymium iron boron powder tank. The neodymium iron boron powder can be effectively prevented from being oxidized, the antioxidant atomized through the pores is sprayed into the powder, a powder agglomeration phenomenon can be effectively prevented, and the oxidation resistance of the powder is improved; and therefore, the performance of the product is improved, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of antioxidant adding apparatus.
Background technology
The technological process of production of Sintered NdFeB magnet is " raw material → vacuum melting → suction hydrogen fragmentation → air-flow abrasive dust → pressing under magnetic field → wait static pressure → vacuum-sintering → mill processing → electroplating surface "; Thereby be easy to cause performance to descend with the anti-living oxidation reaction of oxygen even scrap through the neodymium iron boron material powder that obtains behind the air-flow abrasive dust; Therefore need in neodymium iron boron material powder, to add anti-oxidant and prevent the oxidation of neodymium iron boron material powder; Existing anti-oxidant adding method is that the valve of neodymium iron boron material powder jar is directly opened, and anti-oxidant is poured in the neodymium iron boron material powder jar, then valve-off; Again batch can being loaded onto batch mixer is rotated and rolls; Anti-oxidant is evenly wrapped up on neodymium iron boron material powder surface, thereby neodymium iron boron material powder and airborne oxygen are completely cut off, reduced the possibility of neodymium iron boron material powder oxidation.There is following shortcoming in above anti-oxidant adding method: air got into batch can when 1) neodymium iron boron material powder tank valve was opened, and made partly and expected that powder and airborne oxygen react and oxidation; 2) directly pour anti-oxidant into after, neodymium iron boron material powder is prone to clustering phenomena, the anti-oxidant skewness causes problems such as producing neodymium iron boron material powder non-oxidizability difference and waste of material.
The utility model content
The purpose of the utility model is to provide a kind of antioxidant adding apparatus; To realize effectively to avoid oxygen to get into neodymium iron boron material powder jar; Solve the conglomeration problem of neodymium iron boron material powder simultaneously, anti-oxidant is evenly distributed on neodymium iron boron material powder surface, thereby prevent the oxidation of neodymium iron boron material powder; Improve the performance of neodymium iron boron magnetic body, reduce production costs.
The technical scheme of the utility model is; Comprise the anti-oxidant holding vessel, the anti-oxidant holding vessel is communicated with the pressurized nitrogen input pipe that has by-pass valve control, it is characterized in that; Jar lid shape that mouthful internal diameter surely closes that above neodymium iron boron material powder jar, is provided with an internal diameter and neodymium iron boron material powder jar upper end flexibly connects piece; The inside of said contiguous block is a cavity, and bottom is a bottom plate, on bottom plate, has 10～200 pores; The output of the anti-oxidant efferent duct in the anti-oxidant holding vessel is terminal to be communicated with the cavity of contiguous block through by-pass valve control, and the cavity of anti-oxidant entering contiguous block gets into neodymium iron boron material powder jar through the pore atomizing back of bottom plate.
Said pore is the aperture of φ 2mm～φ 5mm.
The pore atomizing back of cavity bottom it that the anti-oxidant of the utility model gets into contiguous block gets into neodymium iron boron material powder jar; Can effectively avoid oxygen to get into neodymium iron boron material powder jar, solve the conglomeration problem of neodymium iron boron material powder simultaneously, realize that anti-oxidant evenly distributes on neodymium iron boron material powder surface, thereby prevent the oxidation of neodymium iron boron material powder, improve the performance of neodymium iron boron magnetic body, reduce production costs.
Description of drawings
Fig. 1 is the main pseudosection of embodiment 1.
The specific embodiment
Embodiment:
With reference to accompanying drawing 1:
Antioxidant adding apparatus; Comprise nitrogen input pipe 1, input pipe valve 2, anti-oxidant holding vessel 3, anti-oxidant efferent duct 4, efferent duct valve 5 and output contiguous block 6; The bottom of output contiguous block 6 has the pore 9 of 20 φ 2, and anti-oxidant 10 is stored in the anti-oxidant holding vessel 3, and output contiguous block 6 is connected on the jar mouth of neodymium iron boron material powder jar 7; The jar of neodymium iron boron material powder jar 7 a mouthful place is equipped with valve 8, and neodymium iron boron material powder 11 is stored in the neodymium iron boron material powder jar 7.
The course of work of the utility model is following: open input pipe valve 2; Nitrogen is through nitrogen input pipe 1 input anti-oxidant holding vessel 3; Anti-oxidant holding vessel 3 internal gas pressures increase, and open efferent duct valve 5 again, and anti-oxidant 10 exports in the cavity of output contiguous block 6 through anti-oxidant efferent duct 4; Anti-oxidant gets into neodymium iron boron material powder jar 7 after 9 atomizings of output contiguous block 6 bottom pores; The addition of anti-oxidant is successively closed input pipe valve 2, efferent duct valve 5 and neodymium iron boron material powder tank valve 8 after reaching technological requirement, frees output contiguous block 6 with neodymium iron boron material powder jar 7 to be connected again, and anti-oxidant adds operation to be accomplished.
The course of work of the utility model is following: open nitrogen input pipe valve; Nitrogen is through nitrogen input pipe input anti-oxidant holding vessel; Anti-oxidant holding vessel internal gas pressure increases, and opens the efferent duct valve again, and anti-oxidant exports in the cavity of output contiguous block through the anti-oxidant efferent duct; Anti-oxidant gets into neodymium iron boron material powder jar after the pore atomizing of output contiguous block bottom; The addition of anti-oxidant is successively closed input pipe valve, efferent duct valve and neodymium iron boron material powder tank valve after reaching technological requirement, frees output flexible connection piece with neodymium iron boron material powder jar to be connected again, and anti-oxidant adds operation to be accomplished.
Open nitrogen input pipe valve during work; Nitrogen is through nitrogen input pipe input anti-oxidant holding vessel; Anti-oxidant holding vessel internal gas pressure increases, and opens the efferent duct valve again, and anti-oxidant exports in the cavity of output contiguous block through the anti-oxidant efferent duct; Anti-oxidant gets into neodymium iron boron material powder jar after the pore atomizing of output contiguous block bottom; The addition of anti-oxidant is successively closed input pipe valve, efferent duct valve and valve after reaching technological requirement, frees output flexible connection piece with neodymium iron boron material powder jar to be connected again, and anti-oxidant adds operation to be accomplished.The whole operation process has only nitrogen and anti-oxidant to get into neodymium iron boron material powder jar; Thereby can effectively prevent the oxidation of neodymium iron boron material powder; Anti-oxidant is sprayed in the material powder after the pore atomizing, can effectively prevent to expect the powder clustering phenomena, further strengthens material powder oxidation resistance; Thereby the raising performance of products reduces cost.
Claims (2)
1. antioxidant adding apparatus; Comprise the anti-oxidant holding vessel, the anti-oxidant holding vessel is communicated with the pressurized nitrogen input pipe that has by-pass valve control, it is characterized in that; Jar lid shape that mouthful internal diameter surely closes that above neodymium iron boron material powder jar, is provided with an internal diameter and neodymium iron boron material powder jar upper end flexibly connects piece; The inside of said contiguous block is a cavity, and bottom is a bottom plate, on bottom plate, has 10～200 pores; The output of the anti-oxidant efferent duct in the anti-oxidant holding vessel is terminal to be communicated with the cavity of contiguous block through by-pass valve control, and the cavity of anti-oxidant entering contiguous block gets into neodymium iron boron material powder jar through the pore atomizing back of bottom plate.
2. a kind of antioxidant adding apparatus according to claim 1 is characterized in that, said pore is the aperture of φ 2mm～φ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205459434U CN202367198U (en) | 2011-12-23 | 2011-12-23 | Antioxidant adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205459434U CN202367198U (en) | 2011-12-23 | 2011-12-23 | Antioxidant adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202367198U true CN202367198U (en) | 2012-08-08 |
Family
ID=46590922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205459434U Expired - Fee Related CN202367198U (en) | 2011-12-23 | 2011-12-23 | Antioxidant adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202367198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362647A (en) * | 2016-08-31 | 2017-02-01 | 郑州机械研究所 | Powder passivation equipment and passivation agent adding device thereof |
| JP2022042969A (en) * | 2020-09-03 | 2022-03-15 | 煙台東星磁性材料株式有限公司 | Atomizing device and atomizing method of additives to neodymium-iron-boron-based alloy powder |
-
2011
- 2011-12-23 CN CN2011205459434U patent/CN202367198U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362647A (en) * | 2016-08-31 | 2017-02-01 | 郑州机械研究所 | Powder passivation equipment and passivation agent adding device thereof |
| CN106362647B (en) * | 2016-08-31 | 2019-03-15 | 郑州机械研究所有限公司 | A kind of powder passivation equipment and its passivator adding set |
| JP2022042969A (en) * | 2020-09-03 | 2022-03-15 | 煙台東星磁性材料株式有限公司 | Atomizing device and atomizing method of additives to neodymium-iron-boron-based alloy powder |
| EP3970881A1 (en) | 2020-09-03 | 2022-03-23 | Yantai Shougang Magnetic Materials Inc. | Device and method for the addition of liquid additives in the form of a spray during a jet milling step in a process for the manufacture of sintered ndfeb alloy magnets |
| JP7280007B2 (en) | 2020-09-03 | 2023-05-23 | 煙台東星磁性材料株式有限公司 | Apparatus and method for spraying additive to Nd--Fe--B alloy powder |
| US11986836B2 (en) | 2020-09-03 | 2024-05-21 | Yantai Dongxing Magnetic Materials Inc. | Device and method for the addition of liquid additives in the form of a spray during a jet milling step in a process for the manufacture of sintered NdFeB alloy magnets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |