JP5315183B2 - 圧粉磁心用粉末の製造方法 - Google Patents
圧粉磁心用粉末の製造方法 Download PDFInfo
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- JP5315183B2 JP5315183B2 JP2009213064A JP2009213064A JP5315183B2 JP 5315183 B2 JP5315183 B2 JP 5315183B2 JP 2009213064 A JP2009213064 A JP 2009213064A JP 2009213064 A JP2009213064 A JP 2009213064A JP 5315183 B2 JP5315183 B2 JP 5315183B2
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- powder
- silicon
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- magnetic metal
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- 239000000843 powder Substances 0.000 title claims abstract description 195
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000010703 silicon Substances 0.000 claims abstract description 75
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 claims abstract description 53
- 239000002184 metal Substances 0.000 claims abstract description 53
- 239000001257 hydrogen Substances 0.000 claims abstract description 34
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 34
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002344 surface layer Substances 0.000 claims abstract description 33
- 238000005475 siliconizing Methods 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 150000003377 silicon compounds Chemical class 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 11
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical group [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 21
- 239000000428 dust Substances 0.000 abstract description 14
- 229910017112 Fe—C Inorganic materials 0.000 abstract description 9
- 239000011162 core material Substances 0.000 description 70
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 39
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000000377 silicon dioxide Substances 0.000 description 18
- 238000002474 experimental method Methods 0.000 description 6
- 239000006247 magnetic powder Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Description
図1は、本発明の圧粉磁心用粉末の製造方法を説明したフロー図であり、図2aは、図1のステップS2の浸珪処理にて製造された粉末を模擬した図であり、図2bは、図1のステップS3の徐酸化処理にて製造された圧粉磁心用粉末を模擬した図である。
本発明者等は、高比抵抗の圧粉磁心を得るに必要な圧粉磁心用粉末を形成するシリカ皮膜の形成に際し、浸珪処理後の中間粉末の珪素含有層中の珪素濃度を変化させて、シリカ皮膜が安定的に形成される珪素濃度を特定する実験をおこなった。
Claims (3)
- 炭素元素を含む軟磁性金属粉末の表面に浸珪処理をおこない、次いで徐酸化処理をおこなうことにより、圧粉磁心用粉末を製造する方法において、
前記浸珪処理は、軟磁性金属粉末の表面に少なくとも珪素化合物を含む浸珪用粉末を接触させ、該浸珪用粉末を加熱処理することによって前記珪素化合物から珪素元素を脱離させ、該脱離した珪素元素を前記軟磁性金属粉末の表層に浸透拡散させるものであり、
前記浸珪処理はさらに、水素濃度が10〜50体積%の範囲の水素濃度雰囲気下で実施される、圧粉磁心用粉末の製造方法。 - 前記軟磁性金属粉末が鉄−炭素系合金である、請求項1に記載の圧粉磁心用粉末の製造方法。
- 純鉄を浸炭処理して、炭素元素を含む軟磁性金属粉末である鉄を生成し、これを浸珪処理する、請求項1に記載の圧粉磁心用粉末の製造方法。
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JP2009213064A JP5315183B2 (ja) | 2009-09-15 | 2009-09-15 | 圧粉磁心用粉末の製造方法 |
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JP2011063824A JP2011063824A (ja) | 2011-03-31 |
JP5315183B2 true JP5315183B2 (ja) | 2013-10-16 |
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Cited By (1)
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CN105965012A (zh) * | 2016-06-07 | 2016-09-28 | 广州新莱福磁电有限公司 | 一种软磁合金粉体表面包覆二氧化硅绝缘膜层的方法 |
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JP5814169B2 (ja) * | 2012-03-29 | 2015-11-17 | トヨタ自動車株式会社 | 磁心用粉末の製造方法 |
JP6384642B1 (ja) * | 2017-03-01 | 2018-09-05 | 大日本印刷株式会社 | 熱転写シートとシール型印画シートとの組合せ、および熱転写シート |
US11915847B2 (en) * | 2017-03-09 | 2024-02-27 | Tdk Corporation | Dust core |
CN109192433A (zh) * | 2018-09-27 | 2019-01-11 | 常州古金磁性材料科技有限公司 | 一种具有高磁感应强度的软磁材料及其制备方法 |
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JPS5538931A (en) * | 1978-09-07 | 1980-03-18 | Sumitomo Electric Ind Ltd | Production of raw material powder for powder metallurgy |
JP4430607B2 (ja) * | 2005-11-02 | 2010-03-10 | 株式会社ダイヤメット | 表面高Si層被覆鉄粉末の製造方法 |
JP4560077B2 (ja) * | 2007-11-12 | 2010-10-13 | トヨタ自動車株式会社 | 磁心用粉末および磁心用粉末の製造方法 |
JP4422773B2 (ja) * | 2008-04-18 | 2010-02-24 | トヨタ自動車株式会社 | 圧粉磁心用粉末とその製造方法 |
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CN105965012A (zh) * | 2016-06-07 | 2016-09-28 | 广州新莱福磁电有限公司 | 一种软磁合金粉体表面包覆二氧化硅绝缘膜层的方法 |
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