CN113235016A - Superfine soft magnetic alloy powder and preparation method thereof - Google Patents
Superfine soft magnetic alloy powder and preparation method thereof Download PDFInfo
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- CN113235016A CN113235016A CN202110531142.0A CN202110531142A CN113235016A CN 113235016 A CN113235016 A CN 113235016A CN 202110531142 A CN202110531142 A CN 202110531142A CN 113235016 A CN113235016 A CN 113235016A
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- China
- Prior art keywords
- alloy powder
- soft magnetic
- powder
- magnetic alloy
- mixture
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- 239000000843 powder Substances 0.000 title claims abstract description 42
- 229910001004 magnetic alloy Inorganic materials 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 238000009692 water atomization Methods 0.000 claims abstract description 7
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 238000000889 atomisation Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a superfine soft magnetic alloy powder and a preparation method thereof, wherein the alloy powder comprises the following alloy elements by mass percent, Si 2.0-3.0%, Cr4.0-5.0%, and the balance Fe; the method comprises the following steps: s1, mixing the three raw materials of Si, Cr and Fe according to a ratio, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-; and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder. The powder produced by the invention has fine granularity, controllable oxygen content, low impurity content, high yield of finished products, better sphericity and excellent magnetic property; meanwhile, the FeSiCr magnetically soft alloy powder has high magnetic conductivity, and due to the addition of Cr, the corrosion resistance is good, the powder is classified to D50 of 4-6 mu m after water-gas combined atomization, the oxygen content is lower than 3000ppm, the direct-current superposition is good, the eddy-current loss is low, and the yield can reach 40% -45%.
Description
Technical Field
The invention relates to the technical field of superfine soft magnetic alloy powder, in particular to superfine soft magnetic alloy powder and a preparation method thereof.
Background
At present, sharp products in the domestic diamond tools are popular in the market, and the conventional water atomization method is generally adopted for production at present, but the method has lower working efficiency, and the produced powder has thicker granularity.
Disclosure of Invention
The invention aims to provide superfine soft magnetic alloy powder which has high sharpness and high density and effectively improves the working efficiency of a diamond tool and a preparation method thereof aiming at the defects and the defects of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the superfine soft magnetic alloy powder has the innovation points that: the alloy powder comprises Si2.0-3.0 wt%, Cr4.0-5.0 wt%, and Fe for the rest.
The preparation method of the superfine magnetically soft alloy powder has the innovation points that the method comprises the following steps:
s1, mixing the three raw materials of Si, Cr and Fe according to a ratio, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-;
and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder.
The invention has the beneficial effects that:
the powder produced by the invention has fine granularity, controllable oxygen content, low impurity content, high yield of finished products, better sphericity and excellent magnetic property; meanwhile, the FeSiCr magnetically soft alloy powder has high magnetic conductivity, and due to the addition of Cr, the corrosion resistance is good, the powder is classified to D50 of 4-6 mu m after water-gas combined atomization, the oxygen content is lower than 3000ppm, the direct-current superposition is good, the eddy-current loss is low, and the yield can reach 40% -45%.
Detailed Description
The present invention will be further described with reference to the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The superfine soft magnetic alloy powder has Si2.0-3.0 wt%, Cr4.0-5.0 wt% and Fe for the rest.
A preparation method of superfine soft magnetic alloy powder comprises the following steps:
s1, mixing the three raw materials of Si, Cr and Fe according to the proportion, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-;
and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder.
The soft magnetic alloy powder produced by the method is classified until D50 is 4-6 mu m, the oxygen content is lower than 3000ppm, the direct current superposition is good, the eddy current loss is low, and the yield can reach 44%.
Example 2
The superfine soft magnetic alloy powder has Si2.0-3.0 wt%, Cr4.0-5.0 wt% and Fe for the rest.
A preparation method of superfine soft magnetic alloy powder comprises the following steps:
s1, mixing the three raw materials of Si, Cr and Fe according to the proportion, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-;
and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder.
The soft magnetic alloy powder produced by the method is classified until D50 is 4-6 mu m, the oxygen content is lower than 3000ppm, the direct current superposition is good, the eddy current loss is low, and the yield can reach 41%.
Example 3
The superfine soft magnetic alloy powder has Si2.0-3.0 wt%, Cr4.0-5.0 wt% and Fe for the rest.
A preparation method of superfine soft magnetic alloy powder comprises the following steps:
s1, mixing the three raw materials of Si, Cr and Fe according to the proportion, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-;
and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder.
The soft magnetic alloy powder produced by the method is classified until D50 is 4-6 mu m, the oxygen content is lower than 3000ppm, the direct current superposition is good, the eddy current loss is low, and the yield can reach 43%.
The alloy powder produced by the method has fine granularity and higher surface energy.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (2)
1. An ultrafine soft magnetic alloy powder, characterized in that: the alloy powder comprises Si2.0-3.0 wt%, Cr4.0-5.0 wt%, and Fe for the rest.
2. A method for preparing the ultra-fine soft magnetic alloy powder according to claim 1, comprising the steps of:
s1, mixing the three raw materials of Si, Cr and Fe according to a ratio, putting the mixture into an intermediate frequency furnace for smelting, melting the mixture to 1680-;
and S2, drying, screening, grading and batching the powder after high-pressure water atomization to obtain the finished product of the soft magnetic alloy powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110531142.0A CN113235016A (en) | 2021-05-16 | 2021-05-16 | Superfine soft magnetic alloy powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110531142.0A CN113235016A (en) | 2021-05-16 | 2021-05-16 | Superfine soft magnetic alloy powder and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113235016A true CN113235016A (en) | 2021-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110531142.0A Pending CN113235016A (en) | 2021-05-16 | 2021-05-16 | Superfine soft magnetic alloy powder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113235016A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156543A (en) * | 2022-07-15 | 2022-10-11 | 河南弘博新材料有限公司 | Iron-nickel alloy powder production process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07179983A (en) * | 1993-12-24 | 1995-07-18 | Toshiba Electron Eng Corp | Sintered soft-magnetic material having high electric resistance value and its production |
| JP2008041979A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Powdered Metals Co Ltd | Soft magnetic member having airtightness and manufacturing method therefor |
| JP2013098210A (en) * | 2011-10-28 | 2013-05-20 | Taiyo Yuden Co Ltd | Coil type electronic component |
| CN103165258A (en) * | 2011-12-15 | 2013-06-19 | 太阳诱电株式会社 | Coil-type electronic component |
| CN105945294A (en) * | 2016-06-02 | 2016-09-21 | 泉州天智合金材料科技有限公司 | Iron-silicon-chromium soft magnetic powder, preparation method and application thereof |
| CN106024255A (en) * | 2015-03-31 | 2016-10-12 | 太阳诱电株式会社 | Magnetic body and electronic component comprising the same |
| JP2018170330A (en) * | 2017-03-29 | 2018-11-01 | 大同特殊鋼株式会社 | Soft magnetic metal powder |
| CN110880395A (en) * | 2018-09-05 | 2020-03-13 | Tdk株式会社 | Soft magnetic composition, magnetic core, and coil-type electronic component |
-
2021
- 2021-05-16 CN CN202110531142.0A patent/CN113235016A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07179983A (en) * | 1993-12-24 | 1995-07-18 | Toshiba Electron Eng Corp | Sintered soft-magnetic material having high electric resistance value and its production |
| JP2008041979A (en) * | 2006-08-08 | 2008-02-21 | Hitachi Powdered Metals Co Ltd | Soft magnetic member having airtightness and manufacturing method therefor |
| JP2013098210A (en) * | 2011-10-28 | 2013-05-20 | Taiyo Yuden Co Ltd | Coil type electronic component |
| CN103165258A (en) * | 2011-12-15 | 2013-06-19 | 太阳诱电株式会社 | Coil-type electronic component |
| CN106024255A (en) * | 2015-03-31 | 2016-10-12 | 太阳诱电株式会社 | Magnetic body and electronic component comprising the same |
| CN105945294A (en) * | 2016-06-02 | 2016-09-21 | 泉州天智合金材料科技有限公司 | Iron-silicon-chromium soft magnetic powder, preparation method and application thereof |
| JP2018170330A (en) * | 2017-03-29 | 2018-11-01 | 大同特殊鋼株式会社 | Soft magnetic metal powder |
| CN110880395A (en) * | 2018-09-05 | 2020-03-13 | Tdk株式会社 | Soft magnetic composition, magnetic core, and coil-type electronic component |
Non-Patent Citations (1)
| Title |
|---|
| 刘坤杰等: "水气联合雾化法制备铁基预合金粉末及其在金刚石工具中的应用" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156543A (en) * | 2022-07-15 | 2022-10-11 | 河南弘博新材料有限公司 | Iron-nickel alloy powder production process |
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| PB01 | Publication | ||
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Application publication date: 20210810 |