JP6299873B2 - 水アトマイズ金属粉末の製造方法 - Google Patents
水アトマイズ金属粉末の製造方法 Download PDFInfo
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- 239000002184 metal Substances 0.000 title claims description 254
- 229910052751 metal Inorganic materials 0.000 title claims description 254
- 239000000843 powder Substances 0.000 title claims description 179
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 151
- 238000004519 manufacturing process Methods 0.000 title claims description 48
- 238000001816 cooling Methods 0.000 claims description 214
- 238000009835 boiling Methods 0.000 claims description 46
- 238000002347 injection Methods 0.000 claims description 34
- 239000007924 injection Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 31
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 14
- 238000005280 amorphization Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 9
- 229910008423 Si—B Inorganic materials 0.000 claims description 7
- 229910000521 B alloy Inorganic materials 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 96
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 239000000463 material Substances 0.000 description 18
- 238000002425 crystallisation Methods 0.000 description 14
- 239000011261 inert gas Substances 0.000 description 13
- 230000008018 melting Effects 0.000 description 13
- 238000002844 melting Methods 0.000 description 13
- 230000008025 crystallization Effects 0.000 description 12
- 238000009692 water atomization Methods 0.000 description 12
- 239000003507 refrigerant Substances 0.000 description 11
- 239000000110 cooling liquid Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000002826 coolant Substances 0.000 description 7
- 239000000428 dust Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 6
- 239000002923 metal particle Substances 0.000 description 6
- 239000005300 metallic glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000009689 gas atomisation Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 125000001475 halogen functional group Chemical group 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 239000012255 powdered metal Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 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
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- B22F9/00—Making metallic powder or suspensions thereof
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/002—Making metallic powder or suspensions thereof amorphous or microcrystalline
- B22F9/008—Rapid solidification processing
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
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- 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
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- B22F9/00—Making metallic powder or suspensions thereof
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- 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
- B22F9/10—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 using centrifugal force
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- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- 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
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
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- 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
- B22F2009/0828—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 with water
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- 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
- B22F2009/0832—Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating
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- 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
- B22F2009/086—Cooling after atomisation
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- 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
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Description
(1)溶融金属流に水を噴射し、該溶融金属流を分断して金属粉末とし、該金属粉末を冷却する水アトマイズ金属粉末の製造方法において、前記冷却に加えて前記金属粉末にさらに、前記金属粉末の表面温度より高い極小熱流速点(MHF点)を有する冷却能力の二次冷却を施し、前記二次冷却は、前記冷却後の前記金属粉末の温度が該二次冷却における極小熱流速点(MHF点)以下で非晶質化のための必要冷却開始温度以上の温度範囲から行う、水アトマイズ金属粉末の製造方法。
(2)(1)において、前記二次冷却が、前記溶融金属流の分断に使用する水とは異なる水を使用して、水噴射を行う冷却である、水アトマイズ金属粉末の製造方法。
(3)(2)において、前記水噴射を行う冷却が、水温:10℃以下、噴射圧:5MPa以上の噴射水を使用する冷却である、水アトマイズ金属粉末の製造方法。
(4)(1)において、前記二次冷却が、前記冷却後の冷却水、該冷却水とともに落下する分断された溶融金属、および金属粉末の落下経路上に設置された容器による冷却である、水アトマイズ金属粉末の製造方法。
(5)(1)において、前記二次冷却が、前記冷却後の冷却水、該冷却水とともに落下する分断された溶融金属、および金属粉末の落下経路上に設置された衝突板による冷却である、水アトマイズ金属粉末の製造方法。
(6)(4)又は(5)において、前記冷却が、前記水温:30℃以下、あるいはさらに、噴射圧:5MPa以上の水を噴射し、前記溶融金属流を分断して金属粉末とし該金属粉末を冷却する、水アトマイズ金属粉末の製造方法。
(7)(1)ないし(6)のいずれかにおいて、前記溶融金属が、Fe−B系合金、あるいはFe−Si−B系合金からなり、前記水アトマイズ金属粉末が非晶質金属粉末を90%以上含有する粉末である、水アトマイズ金属粉末の製造方法。
図3に示す水アトマイズ金属粉末製造装置を用いて金属粉末を製造した。
(実施例2)
図4に示す水アトマイズ金属粉末製造装置を用いて金属粉末を製造した。
(実施例3)
図5に示す水アトマイズ金属粉末製造装置を用いて金属粉末を製造した。
2 溶解炉
3 タンディッシュ
4 溶湯ガイドノズル
5 ノズルヘッダー
6 水噴射ノズル
7 噴射水
8 溶融金属流
8a 金属粉末
9 チャンバー
10 ホッパー
11 不活性ガスバルブ
12 オーバーフローバルブ
13 金属粉回収バルブ
14 水アトマイズ金属粉末製造装置
15 冷却水タンク
16 チラー(低温冷却水製造装置)
17 高圧ポンプ
18 冷却水配管
21 二次冷却水(冷却噴射水)
22 二次冷却水用バルブ
26 二次冷却水噴射ノズル
27 二次冷却水用高圧ポンプ
28 二次冷却水用冷却水配管
41 容器
42 衝突板
Claims (2)
- 溶融金属流に水を噴射し、該溶融金属流を分断して溶融状態を含む金属粉末とするとともに、該溶融状態を含む金属粉末を冷却して水アトマイズ金属粉末とする水アトマイズ金属粉末の製造方法において、
前記冷却として、
前記溶融金属流に、水温:30℃以下、あるいはさらに、噴射圧:5MPa以上の分断用の噴射水を吹き付ける一次冷却を施し、
さらに、前記溶融状態を含む金属粉末が落下する途中の、前記一次冷却後の前記溶融状態を含む金属粉末の表面温度が、遷移沸騰状態あるいはさらに核沸騰状態になる温度範囲まで冷却する二次冷却を施し、
前記二次冷却として、水温:10℃以下、噴射圧:5MPa以上の冷却噴射水の噴射を行う、水アトマイズ金属粉末の製造方法。 - 前記溶融金属が、Fe−B系合金、あるいはFe−Si−B系合金からなり、前記水アトマイズ金属粉末中の非晶質化率が90%以上である、請求項1に記載の水アトマイズ金属粉末の製造方法。
Applications Claiming Priority (3)
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JP2015068227 | 2015-03-30 | ||
JP2015068227 | 2015-03-30 | ||
PCT/JP2016/001412 WO2016157762A1 (ja) | 2015-03-30 | 2016-03-14 | 水アトマイズ金属粉末の製造方法 |
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JPWO2016157762A1 JPWO2016157762A1 (ja) | 2017-04-27 |
JP6299873B2 true JP6299873B2 (ja) | 2018-03-28 |
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US (1) | US10589356B2 (ja) |
JP (1) | JP6299873B2 (ja) |
KR (1) | KR102020548B1 (ja) |
CN (1) | CN107427926B (ja) |
CA (1) | CA2976743C (ja) |
SE (1) | SE542692C2 (ja) |
WO (1) | WO2016157762A1 (ja) |
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WO2015151420A1 (ja) * | 2014-03-31 | 2015-10-08 | Jfeスチール株式会社 | アトマイズ金属粉末の製造方法 |
KR102020548B1 (ko) | 2015-03-30 | 2019-09-10 | 제이에프이 스틸 가부시키가이샤 | 물 애토마이즈 금속 분말의 제조 방법 |
JP7039126B2 (ja) * | 2016-12-28 | 2022-03-22 | Dowaエレクトロニクス株式会社 | 銅粉およびその製造方法 |
WO2018123809A1 (ja) * | 2016-12-28 | 2018-07-05 | Dowaエレクトロニクス株式会社 | 銅粉およびその製造方法 |
CN110225804B (zh) * | 2017-01-27 | 2022-09-27 | 杰富意钢铁株式会社 | 软磁性铁粉的制造方法 |
CA3084963C (en) * | 2017-12-07 | 2022-05-03 | Jfe Steel Corporation | Method for manufacturing atomized metal powder |
CN107876789A (zh) * | 2017-12-14 | 2018-04-06 | 民乐县锦世建材新材料有限责任公司 | 一种水雾化生产金属粉末的方法 |
KR102339241B1 (ko) | 2018-03-09 | 2021-12-14 | 충남대학교산학협력단 | 구형 금속 입자의 제조방법 |
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EP3838451B1 (en) | 2018-10-11 | 2024-01-10 | JFE Steel Corporation | Method for producing water-atomized metal powder |
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