JP2005064444A - 高周波特性に優れたナノ結晶粒金属粉末の製造方法及びこれを用いた高周波用軟磁性コアの製造方法 - Google Patents
高周波特性に優れたナノ結晶粒金属粉末の製造方法及びこれを用いた高周波用軟磁性コアの製造方法 Download PDFInfo
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- H—ELECTRICITY
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
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- H—ELECTRICITY
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
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- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
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Abstract
本発明は、急速凝固方法(RSP)で製造された非晶質リボンをナノ結晶化熱処理の後、粉砕から得られたナノ結晶粒金属粉末及びその粉末を用いた高周波用軟磁性コアの製造方法に関する。
【解決手段】
本発明による高周波特性に優れた軟磁性コアの製造方法は、RSP方法で製造されたFe系非晶質金属リボンを熱処理してナノ結晶粒金属リボンに変換させる段階;前記ナノ結晶粒金属リボンを粉砕してナノ結晶粒金属粉末を得る段階;前記ナノ結晶粒金属粉末を分級した後、最適の組成均一性を有する粉末の粒度分布で混合する段階;前記混合されたナノ結晶粒金属粉末にバインダーを混合した後、コアを成形する段階;及び前記成形されたコアを熱処理した後、コアを絶縁樹脂でコーティングする段階を含むことを特徴とする。
【選択図】 図1
Description
Claims (8)
- 急速凝固方法(RSP)で製造されたFe系非晶質金属リボンを熱処理してナノ結晶粒金属リボンに変換させる段階;
前記ナノ結晶粒金属リボンを粉砕してナノ結晶粒金属粉末を得る段階;
前記ナノ結晶粒金属粉末を分級した後、最適の組成均一性を有する粉末の粒度分布で混合する段階;
前記混合されたナノ結晶粒金属粉末にバインダーを混合した後、コアを成形する段階;及び
前記成形されたコアを焼鈍処理した後、コアを絶縁樹脂でコーティングする段階を含むことを特徴とする高周波特性に優れた軟磁性コアの製造方法。 - 前記非晶質金属リボンのナノ結晶化熱処理は、窒素雰囲気下で400〜600℃の温度で0.2〜2時間の範囲にて行うことを特徴とする請求項1に記載の高周波特性に優れた軟磁性コアの製造方法。
- 前記粉末の粒度分布は、-100〜+140mesh通過分:15〜65%、-140〜+200mesh通過分:35〜85%からなることを特徴とする請求項1に記載の 高周波特性に優れた軟磁性コアの製造方法。
- 前記バインダーとしては、低融点グラスを1.5〜5重量%含むことを特徴とする請求項1に記載の高周波特性に優れた軟磁性コアの製造方法。
- 前記焼鈍処理は、大気雰囲気下で300〜500℃の温度で0.2〜3.8時間の範囲にて行うことを特徴とする請求項1に記載の高周波特性に優れた軟磁性コアの製造方法。
- 急速凝固方法(RSP)で製造されたFe系非晶質金属リボンを熱処理してナノ結晶粒金属リボンに変換させる段階;
前記ナノ結晶粒金属リボンを粉砕してナノ結晶粒金属粉末を得る段階;
前記ナノ結晶粒金属粉末を分級した後、最適の組成均一性を有するように-100〜+140mesh通過分:15〜65%と、-140〜+200mesh通過分:35〜85%の粉末の粒度分布で混合する段階を含むことを特徴とする高周波特性に優れた軟磁性コア用ナノ結晶粒金属粉末の製造方法。 - 前記ナノ結晶粒金属粉末を得るために使用されるFe系非晶質金属リボンは、基本組成としてFeと、準金属としてP、C、B、Si、Al、Geの中のいずれか一つ以上と、Nb、Cu、Hf、Zr、Tiの中のいずれか一つ以上を必須的に含む非晶質合金からなることを特徴とする請求項6に記載の高周波特性に優れた軟磁性コア用ナノ結晶粒金属粉末の製造方法。
- 前記非晶質金属リボンのナノ結晶化熱処理は、窒素雰囲気下で400〜600℃の温度で0.2〜2時間の範囲にて行うことを特徴とする請求項6に記載の高周波特性に優れた軟磁性コア用ナノ結晶粒金属粉末の製造方法。
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Also Published As
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CN1579682A (zh) | 2005-02-16 |
DE10348810B4 (de) | 2006-04-20 |
DE10348810A1 (de) | 2005-03-17 |
KR20050018235A (ko) | 2005-02-23 |
US7175717B2 (en) | 2007-02-13 |
KR100531253B1 (ko) | 2005-11-28 |
JP4274896B2 (ja) | 2009-06-10 |
CN1232376C (zh) | 2005-12-21 |
US20050034787A1 (en) | 2005-02-17 |
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