CN101540226B - Magnetic powder with abrasion resistance - Google Patents
Magnetic powder with abrasion resistance Download PDFInfo
- Publication number
- CN101540226B CN101540226B CN2008100866812A CN200810086681A CN101540226B CN 101540226 B CN101540226 B CN 101540226B CN 2008100866812 A CN2008100866812 A CN 2008100866812A CN 200810086681 A CN200810086681 A CN 200810086681A CN 101540226 B CN101540226 B CN 101540226B
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- magnetic powder
- magnetic
- abrasion resistance
- wear
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention belongs to the technical field of magnetism, and provides magnetic powder with abrasion resistance. The magnetic powder is characterized by containing the following materials in percentage by weight: 0 to 10 percent of Si (except 0), 0 to 10 percent of Cr (except 0), 0 to 2 percent of Nb (including 0), and the balance of Fe; and in additional, the magnetic powder contains a few impurities, such as Mn. The magnetic powder with the abrasion resistance is characterized in that the magnetic powder is spherical particles or flaky particles, has the particle size distribution of between 10 nm and 100 mu m, and has the characteristics of high saturation magnetization intensity, good abrasion resistance, difficulty in sintering and the like.
Description
Technical field
The present invention relates to a kind of wear-resisting magnetic, belong to technical field of magnetic materials.
Background technology
Magnetic is usually used in fields such as packaging for foodstuff industry, printing industry, textile industry, and magnetic of the prior art is scarcely high temperature resistant, not wear-resisting; Under the state of high temperature, wear into powder easily, sinter piece into, thereby lose the characteristic of magnetic.
The magnetic of domestic present production, owing to form difference fully, its performance and this magnetic difference are very big.Disclose a kind of coercive force when being shaped to bonded permanent magnet in the Chinese patent 200410034695 and reduced slight ferromagnetic oxide powder.Be with alkaline-earth metal as constituent, the bonded permanent magnet ferromagnetic oxide powder for predetermined moulding test the time below the coercitive 6000e of being reduced in.This magnetic be by with average grain diameter more than the 0.50um to the fine powder of 1.0um and more than the average grain diameter 2.50um to the fine powder of 1.0um and more than the average grain diameter 2.5um to the fine powder of 1.0um and more than the average grain diameter 2.5um to the meal of 5.0um, in the ratio of this fine powder account for that 15-40 weight % mixes and.But the resistance to wear of this magnetic and agglutinating property are relatively poor.
Disclose a kind of magnetic among the Japan Patent 02-250901, but its chemical composition is also different with Japan Patent, is embodied on latter two element, on (chromium, niobium) and Co and the content range thereof.Certainly its performance is also just obviously different, is embodied in this patent poor-performing on its resistance to wear and the agglutinating property especially.
Inventor front also provides the magnetic patent of invention of ZL2004100023885, and is authorized.Further research provides following invention.
Summary of the invention
An object of the present invention is to addressing the above problem, a kind of wear-resisting magnetic is provided, this magnetic is the magnetic of ferrous alloy, and anti-wear performance is good.
For achieving the above object, a technical scheme of the present invention provides a kind of wear-resisting magnetic, and it is formed by weight percentage composition and counts: Si:0-10%; Cr:0-10% is except 0; Nb:0-2%, 0 not except; All the other are Fe.In addition, still contain a small amount of impurity, as Mn.A kind of wear-resisting magnetic of the present invention is characterized by spherical particle, or flake shaped particle, and particle size distribution is at 10nm-100um, and magnetic of the present invention has the saturation magnetization height, resistance to wear is good, not characteristics such as easy-sintering.------fragmentation---powder process of removing slag that technological process of the present invention is as follows: by the prior art melting.
Embodiment
Enumerate embodiment below, the present invention is further specified, but the present invention is not only limited to these embodiment.
A percentage by weight Cr2%, Nb0.01%, Si:0.01%, the Fe97.98% powder mixes.
B is in addition melting in stove, treat melting fully after.
C powder by atomization, controlled condition are according to the different of atomization method and equipment and difference makes particle size distribution at 10nm-100um.
Claims (2)
1. wear-resisting magnetic is characterized in that being made of the material of following percentage: Si:0-10%, except 0; Cr:0-10% is except 0; Nb:0-3%, 0 not except; All the other compositions are Fe, and described magnetic is spherical particle or flake shaped particle; Above-mentioned substance is put in addition melting of stove, treat melting back powder by atomization fully, promptly get wear-resisting magnetic.
2. the described a kind of wear-resisting magnetic of root a tree name claim 1 is characterized in that its particle size distribution is at 10nm-100 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100866812A CN101540226B (en) | 2008-03-18 | 2008-03-18 | Magnetic powder with abrasion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100866812A CN101540226B (en) | 2008-03-18 | 2008-03-18 | Magnetic powder with abrasion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101540226A CN101540226A (en) | 2009-09-23 |
| CN101540226B true CN101540226B (en) | 2011-07-27 |
Family
ID=41123358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100866812A Ceased CN101540226B (en) | 2008-03-18 | 2008-03-18 | Magnetic powder with abrasion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101540226B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4956011A (en) * | 1990-01-17 | 1990-09-11 | Nippon Steel Corporation | Iron-silicon alloy powder magnetic cores and method of manufacturing the same |
-
2008
- 2008-03-18 CN CN2008100866812A patent/CN101540226B/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4956011A (en) * | 1990-01-17 | 1990-09-11 | Nippon Steel Corporation | Iron-silicon alloy powder magnetic cores and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101540226A (en) | 2009-09-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20110727 Termination date: 20170318 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20201202 Decision number of declaring invalidation: 47011 Granted publication date: 20110727 |
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| IW01 | Full invalidation of patent right |