JPWO2017022595A1 - 軟磁性粉末 - Google Patents
軟磁性粉末 Download PDFInfo
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- 239000006247 magnetic powder Substances 0.000 title claims abstract description 110
- 239000002245 particle Substances 0.000 claims abstract description 63
- 239000007789 gas Substances 0.000 claims description 59
- 229910045601 alloy Inorganic materials 0.000 claims description 37
- 239000000956 alloy Substances 0.000 claims description 37
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 238000009689 gas atomisation Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 1
- 239000011162 core material Substances 0.000 description 52
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000009692 water atomization Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
Description
以下に説明する手順で、例1〜15の軟磁性粉末に含まれる中空粒子の数の計測を行った。まず、各試料を2g採取し、軟磁性粉末100重量部に対して3重量部(軟磁性粉末100体積部に対して17体積部)のシリコーン樹脂を添加して混合物を得た。この混合物を100MPaの圧力でプレス成形して、外径10mm、厚さ2.5mmの円板を作製した。この円板を160℃で1時間熱処理することにより硬化させて、成形体を得た。このようにして得られた成形体における軟磁性粉末の体積充填率は75%〜77%であった。なお、体積充填率は、成形体の外径および重量を測定して求めた密度を軟磁性粉末の真比重で除した値である。
例1〜15の軟磁性粉末を磁心材料として用いて、以下に説明する手順でトロイダルコアを作製し、コアロスの測定を行った。まず、各試料を2g採取し、軟磁性粉末100重量部に対して3重量部(軟磁性粉末100体積部に対して17体積部)のシリコーン樹脂を添加して混合物を得た。この混合物を100MPaの圧力でプレス成形し、外径13mm、内径8mm、厚さ2.5mmのトロイダルコアを作製した。このトロイダルコアを160℃で1時間熱処理することにより硬化させた。硬化されたトロイダルコアに、太さ0.24mmの銅線を巻き付けて、一次巻き線および二次巻き線を備えるコイル部品を作製した。一次巻き線および二次巻き線の巻数はそれぞれ16ターンであった。岩通計測株式会社製のB−HアナライザSY−8217を用いて、印加磁界30mT、測定周波数1MHzにおけるコイル部品のコアロスを測定した。結果を表2示す。なお、表1および2において「*」を付したものは比較例である。
Claims (11)
- 中空部を有しない粒子を主成分として含む軟磁性粉末であって、体積充填率が75%以上77%以下となるように前記軟磁性粉末を圧粉成形して得られる成形体の断面において、2.5mm四方の領域に存在する中空粒子の数が40以下である、軟磁性粉末。
- 前記軟磁性粉末が、Feを主成分として含有する合金組成物を含み、前記合金組成物中のFe、CoおよびNiの含有量の合計は72at.%以上85at.%以下(ただし、Coおよび/またはNiの含有量は0at.%であってよい)であり、前記軟磁性粉末はアモルファス構造を含む、請求項1に記載の軟磁性粉末。
- 前記軟磁性粉末の平均粒径が10μm以上70μm以下である、請求項1または2に記載の軟磁性粉末。
- ガスアトマイズ法により母合金の溶湯をジェットガスで粉砕して軟磁性粉末を形成する軟磁性粉末の製造方法であって、溶湯流量(重量基準)をジェットガス流量(体積基準)で除した値が3.1g/L以下である、方法。
- 前記母合金の溶湯をジェットガスで粉砕した後、冷却水で急冷する、請求項4に記載の方法。
- 前記母合金がFeを主成分として含有し、該母合金中のFe、CoおよびNiの含有量の合計は72at.%以上85at.%以下(ただし、Coおよび/またはNiの含有量は0at.%であってよい)である、請求項4または5に記載の方法。
- 前記ジェットガスが不活性ガスを含む、請求項4〜6のいずれか1項に記載の方法。
- 前記ジェットガスがArおよび/またはN2を含む、請求項7に記載の方法。
- 前記ジェットガスが分圧換算で0.5%以上7%以下のH2を含む、請求項7または8に記載の方法。
- 請求項1〜3のいずれか1項に記載の軟磁性粉末と樹脂とを含有する磁性体部と、該磁性体部に埋設されたコイル導体とを有するコイル部品であって、前記磁性体部中の前記軟磁性粉末の含有量が60vol%以上である、コイル部品。
- 請求項1〜3のいずれか1項に記載の軟磁性粉末と樹脂とを含有する磁心コアと、該磁心コアに巻回されたコイル導体とを含むコイル部品であって、前記磁心コア中の前記軟磁性粉末の含有量が60vol%以上である、コイル部品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015152759 | 2015-07-31 | ||
JP2015152759 | 2015-07-31 | ||
PCT/JP2016/072054 WO2017022595A1 (ja) | 2015-07-31 | 2016-07-27 | 軟磁性粉末 |
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JPWO2017022595A1 true JPWO2017022595A1 (ja) | 2018-07-05 |
JP6448799B2 JP6448799B2 (ja) | 2019-01-09 |
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JP2017532528A Active JP6448799B2 (ja) | 2015-07-31 | 2016-07-27 | 軟磁性粉末 |
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US (1) | US11817245B2 (ja) |
JP (1) | JP6448799B2 (ja) |
CN (1) | CN107924743B (ja) |
WO (1) | WO2017022595A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109202092B (zh) * | 2018-09-17 | 2020-06-05 | 横店集团东磁股份有限公司 | 一种使用非真空气雾化制备铁硅铝粉末并制作磁芯的工艺 |
CN109797344A (zh) * | 2019-01-25 | 2019-05-24 | 上海电力学院 | 一种Fe基软磁合金及软磁合金带材制备方法 |
JP6982015B2 (ja) * | 2019-02-04 | 2021-12-17 | 三菱パワー株式会社 | 金属粉末製造装置及びそのガス噴射器 |
JP6597923B1 (ja) | 2019-03-20 | 2019-10-30 | Tdk株式会社 | 磁性体コアおよびコイル部品 |
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