KR20040020840A - 망간-아연계 페라이트, 트랜스용 자심 및 트랜스 - Google Patents
망간-아연계 페라이트, 트랜스용 자심 및 트랜스 Download PDFInfo
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Abstract
Description
Claims (9)
- Fe2O3: 51.5∼57.0mol% 및 ZnO : 0∼15mol%(단, 0은 포함하지 않는다)를 포함하고, 잔부가 실질적으로 MnO로 이루어지는 기본 성분중에, Co3O4환산으로 0∼5000ppm(단, 0은 포함하지 않는다)의 Co 산화물을 함유하는 망간-아연(Mn-Zn)계 페라이트에 있어서,상기 페라이트에 있어서의 하기식 (1)의 값α이 α≥ 0.93인 것을 특징으로 하는 망간-아연계 페라이트.α=((Fe2+-Mn3+-Co3+)×(4.29×A+1.91×B+2.19×C+2.01×D))/((A-B-C-D)×100) … 식(1)단, 식(1) 중, (Fe2+-Mn3+-Co3+) : [wt%], A : Fe2O3[mo1%], B : MnO[mol%], C : ZnO[mo1%], D : CoO[mol%]이다.
- Fe2O3: 51.5∼57.0mol% 및 ZnO : 0∼15mol% (단, 0은 포함하지 않는다)를 포함하고, 잔부가 실질적으로 MnO로 이루어지는 기본성분 중에, Co3O4환산으로 0∼5000ppm(단, 0은 포함하지 않는다)의 Co 산화물을 함유하는 망간-아연계 페라이트에 있어서,상기 페라이트에 대해, 100kHz, 200mT의 정현파 교류 자계를 인가하여, 75℃와 120℃에서 각각 측정된 코어 로스의 값을 Pcv1로 하고, 상기 Pcv1의 측정후의 페라이트를, 고온 저장(175℃의 분위기 중에 96시간 저장)한 후에, Pcv1의 측정과 동일 조건으로 각각 측정된 코어 로스의 값을 Pcv2로 했을 때, 하기식 (2)로 표시되는 코어 로스 열화율이 75℃에서 3% 이하 또는 120℃에서 5% 이하인 것을 특징으로 하는 망간-아연계 페라이트.코어 로스 열화율(%)=((Pcv1-Pcv2)/Pcv1)×100 … 식(2)
- Fe2O3: 51.5∼57.0mol% 및 ZnO : 0∼15mol% (단, 0은 포함하지 않는다)를 포함하고, 잔부가 실질적으로 MnO로 이루어지는 기본성분 중에, Co3O4환산으로 0∼5000ppm(단, 0은 포함하지 않는다)의 Co 산화물을 함유하는 망간-아연계 페라이트에 있어서,상기 페라이트에 대해, 100kHz, 200mT의 정현파 교류 자계를 인가하여, 75℃와 120℃에서 각각 측정된 코어 로스의 값을 Pcv1로 하고, 상기 Pcv1의 측정후의 페라이트를, 고온 저장(200℃의 분위기 중에 96시간 저장)한 후에, Pcv1의 측정과 동일 조건으로 각각 측정된 코어 로스의 값을 Pcv3로 했을 때, 하기식 (3)으로 표시되는 코어 로스 열화율이 75℃에서 27% 이하 또는 120℃에서 30% 이하인 것을 특징으로 하는 망간-아연계 페라이트.코어 로스 열화율(%)=((Pcv1-Pcv3)/Pcv1)×100 … 식(3)
- 제1항 내지 제3항 중 어느 한항에 있어서,부성분으로서, SiO2: 50∼220ppm, CaO : 120∼1400ppm을 함유하는 것을 특징으로 하는 망간-아연계 페라이트.
- 제4항에 있어서, 부성분으로서, Nb2O5: 0∼500ppm(단, 0은 포함하지 않는다), ZrO2: 0∼500ppm(단, 0은 포함하지 않는다), Ta2O5: 0∼1000ppm(단, 0은 포함하지 않는다), V2O5: 0∼500ppm(단, 0은 포함하지 않는다), HfO2: 0∼500ppm(단, 0은 포함하지 않는다) 중의 1종 이상을 함유하는 것을 특징으로 하는 망간-아연계 페라이트.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 페라이트중의 인(P) 및 붕소(B)의 함유량이 인(P) ≤35ppm 또는 붕소(B) ≤35ppm인 것을 특징으로 하는 망간-아연계 페라이트.
- 제1항 내지 제3항 중 어느 한 항 기재의 망간-아연계 페라이트로 구성되어 있는 것을 특징으로 하는 트랜스용 자심.
- 제7항 기재의 트랜스용 자심의 주위에 코일이 감겨있는 것을 특징으로 하는 트랜스.
- Fe2O3: 51.5∼57.0mo1% 및 ZnO : 0∼15mo1%(단, 0은 포함하지 않는다)를 포함하고, 잔부가 실질적으로 MnO로 이루어지는 기본 성분중에, Co3O4환산으로 0∼5000ppm(단, 0은 포함하지 않는다)의 Co 산화물을 함유하는 망간-아연계 페라이트를 제조하는 방법에 있어서,상기 조성 범위가 되도록 원료를 준비하는 원료 준비 공정과,상기 원료에 바인더를 가하여 소정 형상으로 성형하고, 예비 성형체를 형성하는 성형 공정과,상기 예비 성형체를 소성하는 소성 공정을 가지고,상기 소성 공정이 고온 유지 공정을 가지고,상기 고온 유지 공정에서의 유지 온도가, 1250℃∼1400℃이고,소성 분위기의 산소 분압을 PO2(%)로 하고, 유지 온도를 T(K)로 했을 때, 하기 (4)식을 만족하는 PO2로 소성하는 것을 특징으로 하는 망간-아연계 페라이트의 제조 방법.Log(PO2)= a-13000/T … 식(4)단, 식(4)중의 a는 6.95≤a≤8.85이다.
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JPJP-P-2002-00257015 | 2002-09-02 | ||
JP2002257015 | 2002-09-02 | ||
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JPJP-P-2003-00067949 | 2003-03-13 |
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US (1) | US6905629B2 (ko) |
EP (1) | EP1394116A1 (ko) |
KR (1) | KR100522222B1 (ko) |
CN (1) | CN1231927C (ko) |
HK (1) | HK1063877A1 (ko) |
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Cited By (4)
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KR101380323B1 (ko) * | 2012-10-25 | 2014-04-01 | 익스팬테크주식회사 | 페라이트를 이용한 전자기 펄스 차단용 emp 필터 |
KR20150101946A (ko) * | 2014-02-27 | 2015-09-04 | 티디케이가부시기가이샤 | 페라이트 소결체 및 이것을 사용한 전자 부품, 및 전원 장치 |
KR20220096419A (ko) * | 2020-12-31 | 2022-07-07 | 순천대학교 산학협력단 | 변압기 지지대 및 그 제조 방법 |
KR20220096420A (ko) * | 2020-12-31 | 2022-07-07 | 순천대학교 산학협력단 | 복수개의 서포터를 갖는 변압기 지지대 및 그 제조 방법 |
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JPWO2006054749A1 (ja) * | 2004-11-19 | 2008-06-05 | 日立金属株式会社 | 低損失Mn−Znフェライト及びこれを用いた電子部品並びにスイッチング電源 |
US7508794B2 (en) * | 2005-11-29 | 2009-03-24 | Cisco Technology, Inc. | Authorizing an endpoint node for a communication service |
JP2007238339A (ja) * | 2006-03-06 | 2007-09-20 | Tdk Corp | Mn−Zn系フェライト材料 |
JP5019023B2 (ja) * | 2006-03-30 | 2012-09-05 | Tdk株式会社 | Mn−Zn系フェライト材料 |
JP5578766B2 (ja) * | 2008-01-23 | 2014-08-27 | Jfeケミカル株式会社 | MnZn系フェライトおよびトランス用磁心 |
JP5332254B2 (ja) | 2008-03-25 | 2013-11-06 | Tdk株式会社 | フェライト焼結体 |
JP5546135B2 (ja) * | 2009-01-29 | 2014-07-09 | Jfeケミカル株式会社 | MnZn系フェライトコアおよびその製造方法 |
TWI456598B (zh) * | 2013-08-05 | 2014-10-11 | China Steel Corp | 高電阻係數錳鋅鐵氧磁粉及磁蕊之製造方法 |
US10304602B2 (en) | 2014-08-29 | 2019-05-28 | Hitachi Metals, Ltd. | MnZn-based ferrite and method for manufacturing the same |
CN111138182A (zh) * | 2019-12-31 | 2020-05-12 | 天长市中德电子有限公司 | 一种制备高磁导率锰锌铁氧体的方法 |
JP7092160B2 (ja) * | 2020-04-02 | 2022-06-28 | Tdk株式会社 | フェライト組成物、電子部品、および、電源装置。 |
JP7185791B2 (ja) * | 2020-07-14 | 2022-12-07 | Jfeケミカル株式会社 | MnZn系フェライト |
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JPS5950072A (ja) | 1982-09-11 | 1984-03-22 | 住友特殊金属株式会社 | 酸化物磁性材料及びその製造方法 |
JPS60132301A (ja) | 1983-12-20 | 1985-07-15 | Sumitomo Special Metals Co Ltd | 酸化物磁性材料 |
JPH081844B2 (ja) | 1992-08-08 | 1996-01-10 | 日立フェライト株式会社 | 電源用高周波低損失フェライト |
JPH06310320A (ja) | 1993-04-22 | 1994-11-04 | Matsushita Electric Ind Co Ltd | 酸化物磁性体材料 |
DE69428593T2 (de) * | 1994-04-27 | 2002-06-06 | Tdk Corp | Ferrit und ferritkern für schaltnetzteile |
JPH08191011A (ja) | 1994-11-07 | 1996-07-23 | Kawasaki Steel Corp | Mn−Zn−Co系フェライト磁心材料 |
JP3849808B2 (ja) | 1995-06-23 | 2006-11-22 | 日立金属株式会社 | 液晶バックライト用低損失フェライト |
DE59601546D1 (de) | 1995-09-15 | 1999-05-06 | Siemens Matsushita Components | Mangan-Zink-Ferrit |
JPH11214213A (ja) * | 1998-01-23 | 1999-08-06 | Tdk Corp | フェライト、ならびにトランスおよびその駆動方法 |
JP2001080952A (ja) * | 1999-09-09 | 2001-03-27 | Tdk Corp | 磁性フェライト材料 |
JP4761175B2 (ja) | 2000-02-07 | 2011-08-31 | 日立金属株式会社 | 低損失フェライトおよびこれを用いた磁心 |
JP4279995B2 (ja) | 2001-02-07 | 2009-06-17 | Tdk株式会社 | MnZn系フェライト |
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- 2003-09-02 KR KR10-2003-0061050A patent/KR100522222B1/ko active IP Right Grant
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101380323B1 (ko) * | 2012-10-25 | 2014-04-01 | 익스팬테크주식회사 | 페라이트를 이용한 전자기 펄스 차단용 emp 필터 |
KR20150101946A (ko) * | 2014-02-27 | 2015-09-04 | 티디케이가부시기가이샤 | 페라이트 소결체 및 이것을 사용한 전자 부품, 및 전원 장치 |
KR20220096419A (ko) * | 2020-12-31 | 2022-07-07 | 순천대학교 산학협력단 | 변압기 지지대 및 그 제조 방법 |
KR20220096420A (ko) * | 2020-12-31 | 2022-07-07 | 순천대학교 산학협력단 | 복수개의 서포터를 갖는 변압기 지지대 및 그 제조 방법 |
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KR100522222B1 (ko) | 2005-10-17 |
US20040090302A1 (en) | 2004-05-13 |
CN1231927C (zh) | 2005-12-14 |
EP1394116A1 (en) | 2004-03-03 |
TW200405365A (en) | 2004-04-01 |
HK1063877A1 (en) | 2005-01-14 |
US6905629B2 (en) | 2005-06-14 |
CN1495809A (zh) | 2004-05-12 |
TWI228729B (en) | 2005-03-01 |
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