JP2005057230A - Fe系非晶質金属粉末の製造方法およびこれを用いた軟磁性コアの製造方法 - Google Patents
Fe系非晶質金属粉末の製造方法およびこれを用いた軟磁性コアの製造方法 Download PDFInfo
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- 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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- 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
- H01F1/15341—Preparation processes therefor
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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
- H01F1/20—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 in the form of particles, e.g. powder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/08—Cores, Yokes, or armatures made from powder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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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- Manufacturing Cores, Coils, And Magnets (AREA)
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粉砕して得られた大電流において優れた直流重畳特性を有し、コア損失も良好である、Fe系非晶質金属粉末を用いた非晶質軟磁性コアの製造方法に関する。
【解決手段】
本発明による非晶質軟磁性コアの製造方法は、Fe系非結晶質合金を使用して急速凝固方法で製造された非晶質金属リボンを予備熱処理する段階;前記非晶質金属リボンを粉砕して非晶質金属粉末を得る段階;前記非晶質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;前記混合された非晶質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。
【選択図】 図1
Description
RSP方法で製造された組成Fe78-Si13-B9非晶質リボンを大気雰囲気下で300℃、1時間熱処理して、予備熱処理された非晶質金属リボンを得た。前記非晶質金属リボンを粉砕機を用いて粉砕した後、分級を通して-100〜+140mesh通過分:40%、-140〜+200mesh通過分:60%を得た。
以後、前記コア成形体を450℃の温度で30分間保持する焼鈍処理を行ってから、コアの表面にエポキシ樹脂を100μmの厚さでコーティングした後、透磁率、直流重畳、コア損失の特性を測定して下記の表1に表した。
実施例1と同一な方法で製造するが、非晶質粉末の粒度を-100〜+140mesh通過分:70%、-140〜+200mesh通過分:30%を使用した。圧出成形を通じてコア成形の際、成形後コアの表面にクラックが生じて熱処理後コアが破れる現像が発生した。
実施例1と同一な方法で製造するが、非晶質粉末の粒度を-100〜+140mesh通過分:10%、-140〜+200mesh通過分:90%を使用した。コーティング後、磁性特性を評価した時、透磁率が45ほど示されたが、これは-100〜+140mesh通過分:40%、-140〜+200mesh通過分:60%を使用した実施例1においてのコアの透磁率より20%ほど低い値である。
実施例1と同一な方法で製造するが、バインダーの含量を各々重量%として0.3%、0.7%、2%、2.5%使用した。
実施例1と同一な方法で製造するが、焼鈍処理の際、熱処理の温度を各々290、300、400、500、510℃、熱処理の時間は10分から8時間まで変化しながら行った。表2は、熱処理の温度と熱処理の時間による透磁率の変化を表したものである。
Claims (7)
- Fe系非晶質金属リボンを予備熱処理する段階;
前記非晶質金属リボンを粉砕して非晶質金属粉末を得る段階;
前記非晶質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;
前記混合された非晶質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、前記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非晶質軟磁性コアの製造方法。 - 前記非晶質金属リボンは、急速凝固方法(RSP)で製造されたことを特徴とする請求項1に記載の非晶質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:35〜45%、-140〜+200mesh通過分:55〜65%からなることを特徴とする請求項1に記載の非晶質軟磁性コアの製造方法。
- 前記バインダーは、フェノール、ポリイミド及びエポキシの中から選択されたいずれか一つを0.5〜2重量%含むことを特徴とする請求項1に記載の非晶質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0.3時間ないし4.3時間の範囲にて行うことを特徴とする請求項1に記載の非晶質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予備熱処理する段階;
前記非晶質金属リボンを粉砕して非晶質金属粉末を得る段階;及び
前記非晶質金属粉末を分級した後、-100〜+140mesh通過分:35〜45%、-140〜+200mesh通過分:55〜65%として、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から構成されることを特徴とする直流重畳特性に優れた軟磁性コア用非晶質金属粉末の製造方法。 - 前記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のいずれか一つ以上を必須的に含む非結晶質合金からなることを特徴とする請求項6に記載の直流重畳特性に優れた軟磁性コア用非晶質金属粉末の製造方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030054445A KR100545849B1 (ko) | 2003-08-06 | 2003-08-06 | 철계 비정질 금속 분말의 제조방법 및 이를 이용한 연자성코어의 제조방법 |
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| Publication Number | Publication Date |
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| JP2005057230A true JP2005057230A (ja) | 2005-03-03 |
| JP4274897B2 JP4274897B2 (ja) | 2009-06-10 |
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Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7172660B2 (ja) |
| JP (1) | JP4274897B2 (ja) |
| KR (1) | KR100545849B1 (ja) |
| CN (1) | CN1232375C (ja) |
| DE (1) | DE10348808B4 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008141011A (ja) * | 2006-12-01 | 2008-06-19 | Hitachi Powdered Metals Co Ltd | アモルファス圧粉磁心 |
| WO2009139368A1 (ja) | 2008-05-16 | 2009-11-19 | 日立金属株式会社 | 圧粉磁心及びチョーク |
| WO2010095496A1 (ja) * | 2009-02-20 | 2010-08-26 | アルプス・グリーンデバイス株式会社 | 圧粉コア |
| JP2012164845A (ja) * | 2011-02-08 | 2012-08-30 | Hitachi Metals Ltd | 圧粉磁心 |
| JP2016027656A (ja) * | 2015-09-03 | 2016-02-18 | 日立金属株式会社 | 圧粉磁心の製造方法 |
| WO2021145708A1 (ko) * | 2020-01-16 | 2021-07-22 | 코오롱인더스트리 주식회사 | 복합재 |
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| WO2021145708A1 (ko) * | 2020-01-16 | 2021-07-22 | 코오롱인더스트리 주식회사 | 복합재 |
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| US12331385B2 (en) | 2020-01-16 | 2025-06-17 | Kolon Industries, Inc. | Composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050015563A (ko) | 2005-02-21 |
| DE10348808A1 (de) | 2005-03-03 |
| KR100545849B1 (ko) | 2006-01-24 |
| JP4274897B2 (ja) | 2009-06-10 |
| CN1579681A (zh) | 2005-02-16 |
| US20050028889A1 (en) | 2005-02-10 |
| CN1232375C (zh) | 2005-12-21 |
| DE10348808B4 (de) | 2006-04-20 |
| US7172660B2 (en) | 2007-02-06 |
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