CN102912370A - Method for removing rust from neodymium iron boron - Google Patents
Method for removing rust from neodymium iron boron Download PDFInfo
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- CN102912370A CN102912370A CN 201110222386 CN201110222386A CN102912370A CN 102912370 A CN102912370 A CN 102912370A CN 201110222386 CN201110222386 CN 201110222386 CN 201110222386 A CN201110222386 A CN 201110222386A CN 102912370 A CN102912370 A CN 102912370A
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- iron boron
- neodymium iron
- boron product
- polar plate
- rust
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Abstract
The invention discloses a method for removing rust from a neodymium iron boron product. The method comprises the following steps: demagnetizing the neodymium iron boron product; ultrasonically washing the demagnetized neodymium iron boron product; and magnetizing the ultrasonically washed neodymium iron boron product. A rust-removing device comprises a vacuum system, an upper polar plate, a lower polar plate, a shielding plate, an inflator and a heater, wherein the upper polar plate, the shielding plate and the inflator are arranged at the upper part of a vacuum chamber; the lower polar plate is arranged at the lower part of the vacuum chamber; and the distance between the upper polar plate and the lower polar plate is 25 to 35 mm. By adoption of the technical scheme, the process is simple to operate and the size error and the magnetic characteristic of parts are not influenced.
Description
Technical field
The present invention relates to a kind of derusting process of neodymium iron boron product, what be specifically related to is a kind of derusting method of efficient neodymium iron boron product.
Background technology
Derusting method can be divided into four classes: hand cleaning, chemical rust removing, ultrasonic cleaning and mechanical rust removal, and hand cleaning speed is slow, and efficient is low, the chemical rust removing shortcoming is that the rust cleaning effect is undesirable, do not reach the purpose of rust cleaning, chemical pollution is large. and what mechanical rust removal was often referred to is exactly the physics rust cleaning, and maximum characteristics are: rust cleaning speed is fast, effective, the rust cleaning cost is low, in rust cleaning, can also eliminate the burr on surface, foreign material, effects on surface have certain beautification function.Controllability is high.Especially for heavy steel plate, reinforcing bar, steel, the steel construction rust cleaning. because the physical property of Nd-Fe-B alloys material, so that NdFeB material is easy to get rusty, NdFeB material was placed in the air after 10 hours, will get rusty, so for the higher NdFeB material of dimensional requirement, its derusting method becomes and is even more important.
Summary of the invention
The present invention provides a kind of derusting method of neodymium iron boron product according to above-mentioned deficiency.
For achieving the above object, technical scheme of the present invention is a kind of derusting method of neodymium iron boron product, and implementation step is:
Neodymium iron boron product is demagnetized;
With the neodymium iron boron product Ultrasonic after the demagnetization;
Neodymium iron boron product behind the Ultrasonic is magnetized.
Described rust-removing device refers to be comprised of vacuum system, top crown, bottom crown, shielding slab, aerator and well heater, top crown wherein, shielding slab and aerator are arranged in the top of vacuum chamber, and bottom crown is arranged in the bottom of vacuum chamber, and the distance between the upper bottom crown is 25～35 millimeters.
The beneficial effect of technique scheme is: derusting process is simple, does not affect scale error and the magnetic properties of part.
Embodiment
Below in conjunction with embodiment the present invention is made specific description.
A kind of derusting method of neodymium iron boron goods comprises demagnetization, ultrasonic cleaning, be provided with top crown, bottom crown is implemented the plasma body rust cleaning in the vacuum chamber of well heater and aerator, magnetize, iron boron goods to be eliminated rust place on the ground connection bottom crown after demagnetization and cleaning, be evacuated to the 10 torr orders of magnitude, the halogen tungsten lamp well heater is heated to 90 ℃ to workpiece, keeps constant temperature: be filled with hydrogen by aerator, hydrogen pressure is 7 torrs, and quantity is 0.5; Top crown connects radio frequency power source, and its power is 80W; Power density is 0.12W/cm
3. being filled with the hydrogen optimal force is 4 torrs, and the hydrogen optimum flow is 0.7, and best radio frequency power 100W, optimum power intensity are 0.16W/cm
3. rust-removing device refers to by vacuum system, top crown, bottom crown, shielding slab, aerator and well heater form, wherein top crown, shielding slab and aerator are arranged in the top of vacuum chamber, and bottom crown is arranged in the bottom of vacuum chamber, and the distance between the upper bottom crown is 25～35 millimeters.Top crown is the dish shape, and its bottom has several ventilating pits, and adopt on the electric lids that screw is that fixedly inlet pipe 21 is connected the upper end; Aerator is by gas-filled valve, electric lids, and shower nozzle, top crown and screw form, and gas-filled valve is arranged on the axis of vacuum chamber, and its outside is surrounded by insulation thimble and metal sleeve, the end of electric lids gas-filled valve.
Claims (2)
1. the derusting method of a neodymium iron boron product is characterized in that implementation step is:
1) neodymium iron boron product is demagnetized;
2) the neodymium iron boron product Ultrasonic after will demagnetizing;
3) neodymium iron boron product behind the Ultrasonic is magnetized.
2. method according to claim 1, it is characterized in that: described rust-removing device refers to be comprised of vacuum system, top crown, bottom crown, shielding slab, aerator and well heater, top crown wherein, shielding slab and aerator are arranged in the top of vacuum chamber, bottom crown is arranged in the bottom of vacuum chamber, and the distance between the upper bottom crown is 25～35 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110222386 CN102912370A (en) | 2011-08-04 | 2011-08-04 | Method for removing rust from neodymium iron boron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110222386 CN102912370A (en) | 2011-08-04 | 2011-08-04 | Method for removing rust from neodymium iron boron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102912370A true CN102912370A (en) | 2013-02-06 |
Family
ID=47610937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110222386 Withdrawn CN102912370A (en) | 2011-08-04 | 2011-08-04 | Method for removing rust from neodymium iron boron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102912370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568425A (en) * | 2017-03-09 | 2018-09-25 | 天津邦特磁性材料有限公司 | A kind of derusting method of neodymium iron boron product |
| WO2019192227A1 (en) * | 2018-04-04 | 2019-10-10 | 赫斯提亚深圳生物科技有限公司 | Electrode assembly, manufacturing method therefor, and aerosol generating apparatus |
-
2011
- 2011-08-04 CN CN 201110222386 patent/CN102912370A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568425A (en) * | 2017-03-09 | 2018-09-25 | 天津邦特磁性材料有限公司 | A kind of derusting method of neodymium iron boron product |
| WO2019192227A1 (en) * | 2018-04-04 | 2019-10-10 | 赫斯提亚深圳生物科技有限公司 | Electrode assembly, manufacturing method therefor, and aerosol generating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130206 |