KR910006518A - Magnesium Oxide Coating and Coating Method for Electric Steel - Google Patents

Magnesium Oxide Coating and Coating Method for Electric Steel Download PDF

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KR910006518A
KR910006518A KR1019900014201A KR900014201A KR910006518A KR 910006518 A KR910006518 A KR 910006518A KR 1019900014201 A KR1019900014201 A KR 1019900014201A KR 900014201 A KR900014201 A KR 900014201A KR 910006518 A KR910006518 A KR 910006518A
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magnesia
chlorine content
slurry
added
silicon steel
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KR1019900014201A
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KR0173781B1 (en
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에스. 라이트 웨이드
에이. 머피 로빈
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알. 에이취. 존슨
암코 인크.
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C21D8/1283Application of a separating or insulating coating
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02Extraction of non-metals
    • C21D3/04Decarburising

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

내용 없음No content

Description

전기 강용 산화 마그네슘 코팅 및 코팅 방법Magnesium Oxide Coating and Coating Method for Electric Steel

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (26)

a) 대부분의 입자들이 200 미만의 시트르산 활성을 갖는 마그네시아, b) 상기 마그네시아 중의 총 염소 함량이 상기 마그네시아의 중량을 기준으로 0.01-0.20중량%이고, 이중의 0.01중량% 이상이 Mg, Ca, Na 및/또는 K로 구성되는 군중에서 선택된 금속 염화물로부터 제공되는 염소, c) 최대 15%의 TiO2, d) 최대 10%의 SiO2, e) 최대 15%의 Cr 및 f) 최대 0.3%의 B로 구성되고, 25℃ 이하로 유지되는 고온의 최종 풀림(anneal) 처리 전에 배향된 냉간 압연 규소강을 코팅하기 위한 마그네시아 슬러리.a) magnesia in which most of the particles have less than 200 citric acid activity, b) the total chlorine content in the magnesia is 0.01-0.20% by weight based on the weight of the magnesia, of which at least 0.01% is Mg, Ca, Na And / or chlorine provided from a metal chloride selected from the group consisting of K, c) up to 15% TiO 2 , d) up to 10% SiO 2 , e) up to 15% Cr and f) up to 0.3% B A magnesia slurry for coating cold rolled silicon steel oriented before a final high temperature annealing treatment maintained at 25 ° C. or less. 제1항에 있어서, 5-10중량%의 TiO2가 첨가되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein 5-10% by weight of TiO 2 is added. 제1항에 있어서, 상기 마그네시아가 0-15℃의 온도로 유지되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1, wherein the magnesia is maintained at a temperature of 0-15 ° C. 제1항에 있어서, 상기 총 염소 함량이 0.015-0.15%인 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the total chlorine content is 0.015-0.15%. 제1항에 있어서, 상기 금속 염화물이 0.015-0.12%의 염소 함량을 제공하는 양으로 첨가되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the metal chloride is added in an amount that provides a chlorine content of 0.015-0.12%. 제1항에 있어서, 상기 금속 염화물이 0.02-0.10%의 염소 함량을 제공하는 양으로 첨가되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the metal chloride is added in an amount that provides a chlorine content of 0.02-0.10%. 제1항에 있어서, 상기 금속 염화물이 Mg, Na 및/또는 K으로 구성된 군중에서 선택된 금속의 염화물이고 0.015 내지 0.10%의 총 염소 함량을 제공하는 양으로 첨가되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the metal chloride is a chloride of a metal selected from the group consisting of Mg, Na and / or K and is added in an amount that provides a total chlorine content of 0.015 to 0.10%. 제1항에 있어서, 상기 금속이 Ca이고, 0.015-0.07%의 총 염소 함량을 제공하는 양으로 첨가되는 것이 특징인 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the metal is Ca and added in an amount that provides a total chlorine content of 0.015-0.07%. 제1항에 있어서, 상기 강이 AIN 억제제 계를 갖는 고 투자율의 규소강이고, 3-7%의 SiO2및 0.05-0.15%의 붕소를 상기 마그네시아에 첨가시키는 것이 특징인 마그네시아 슬러리.The magnesia slurry according to claim 1, wherein the steel is a high permeability silicon steel having an AIN inhibitor system and 3-7% SiO 2 and 0.05-0.15% boron are added to the magnesia. 제1항에 있어서, 2.5-5%의 Cr을 첨가하는 것이 특징인 마그네시아 슬러리.Magnesia slurry according to claim 1, characterized in that 2.5-5% Cr is added. 제1항에 있어서, 상기 규소강이 정규 배향된 임상 규소강이고, 상기 마그네시아 최대 20%의 인산염 첨가제및 최대 0.15%의 붕소를 포함하는 것을 특징으로 하는 마그네시아 슬러리.The magnesia slurry of claim 1 wherein the silicon steel is a normally oriented clinical silicon steel and comprises up to 20% phosphate additive and up to 0.15% boron in the magnesia. 제11항에 있어서, 상기 인산염 첨가제가 4-15%양의 인산칼슘이고, 상기 SiO2는 3-7%이고, 상기 Cr은 2-10%이고, 상기 붕소는 최대 0.10%인 것이 특징인 마그네시아 슬러리.12. The magnesia of claim 11 wherein the phosphate additive is 4-15% calcium phosphate, the SiO 2 is 3-7%, the Cr is 2-10%, and the boron is at most 0.10%. Slurry. (a) 규소강을 스트립(strip)으로 냉각 압연시키는 단계, (b) 사기 스트립의 탄소 함량을 0.003% 이하로 줄이는 단계, (c) 마그네이사 욕조를 빙점 이상으로부터 25℃까지의 온도로 유지시키는 단계, (d) 총 염소 함량이 0.01-0.20중량%이고, 이중 0.01% 이상이 Mg, Ca, Na 및(또는) K중에서 선택된 금속의 염화물을 첨가함으로써 제공되며, 대부분의 마그네시아 입자가 200 미만의 시트르산 활성을 갖는 마그네시아 코팅제로 코팅하는 단계, (e) 상기 마그네시아를 건조하여 과량의 물을 제거시키는 단계, 및 (f) 고온의 최종 풀림을 행하여 유리 막을 형성함으로써 개선된 자성을 발휘하는 단계로 이루어진 것이 특징인, 배향된 규소강에 전기 절연 코팅을 제조하는 방법.(a) cold rolling silicon steel into strips, (b) reducing the carbon content of fraud strips to 0.003% or less, and (c) maintaining the Magnesia bath at a temperature from above freezing point to 25 ° C. (D) a total chlorine content of 0.01-0.20% by weight, at least 0.01% of which is provided by adding chlorides of metals selected from Mg, Ca, Na and / or K, with most magnesia particles of less than 200 Coating with a magnesia coating having citric acid activity, (e) drying the magnesia to remove excess water, and (f) performing final high temperature annealing to exert improved magnetic properties by forming a glass film. Characterized in that a method for producing an electrically insulating coating on oriented silicon steel. 제13항에 있어서, 상기 최종 풀림 단계 후에 레이저 도메인(domain) 정련 단계가 사용되는 것이 특징인 방법.The method of claim 13, wherein a laser domain refining step is used after the final unwinding step. 제13항에 있어서, 염소의 0.015-0.15%가 Mg, Na, Ca 및/또는 K로 구성된 군중에서 선택된 금속의 염화물로서 첨가되는 것이 특징인 방법.The method of claim 13, wherein 0.015-0.15% of chlorine is added as a chloride of a metal selected from the group consisting of Mg, Na, Ca and / or K. 제13항에 있어서, 상기 강 스트립 상에 코팅시키기 전에 상기 마그네시아를 0-15℃로 유지시키는 것이 특징인 방법.The method of claim 13, wherein the magnesia is maintained at 0-15 ° C. prior to coating on the steel strip. 제13항에 있어서, 상기 마그네시아가 200 이상의 시트르산 활성을 갖는 불활성 마그네시아 입자를 최대 45%까지 함유하는 것이 특징인 방법.The method of claim 13, wherein the magnesia contains up to 45% of inert magnesia particles having at least 200 citric acid activity. 제13항에 있어서, 상기 마그네시아 500-5000의 시트르산 활성을 갖는 입자를 최대 45%까지 함유하는 것이 특징인 방법.15. The method of claim 13, containing up to 45% of the particles having a citric acid activity of magnesia 500-5000. 제13항에 있어서, 상기 마그네시아 중에 존재하는 염소 함량과 상기 금속 염화물 중의 염소 함량이 합이 0.015-0.12%의 총 염소 함량을 제공하는 것이 특징인 방법.The method according to claim 13, wherein the chlorine content in the magnesia and the chlorine content in the metal chloride provide a total chlorine content of 0.015-0.12%. 제13항에 있어서, 상기 마그네시아 중에 존재하는 염소 함량과 상기 금속 염화물 중의 염소 함량의 합이 0.02-0.10%의 총 염소 함량을 제공하는 것이 특징인 방법.The method of claim 13 wherein the sum of the chlorine content present in the magnesia and the chlorine content in the metal chloride provides a total chlorine content of 0.02-0.10%. 제13항에 있어서, 상기 총 염소 함량이 0.015-0.10%이고, 상기 금속 염화물이 Mg, Na 및/또는 K로 구성되는 군중에서 선택된 금속의 염화물인 것이 특징인 방법.The method according to claim 13, wherein the total chlorine content is 0.015-0.10% and the metal chloride is a chloride of a metal selected from the group consisting of Mg, Na and / or K. 제13항에 있어서, 상기 금속이 Ca이고, 0.015-0.7%의 염소 함량을 제공하는 양으로 첨가되는 것이 특징인 방법.The method of claim 13, wherein the metal is Ca and added in an amount that provides a chlorine content of 0.015-0.7%. 제13항에 있어서, 상기 마그네시아가 a) 최대 15%의 TiO2, b) 최대 10% SiO2, c) 최대 15%의 Cr 및 d) 최대 0.3%의 B를 포함하는 것이 특징인 방법.The method of claim 13, wherein the magnesia comprises a) at most 15% TiO 2 , b) at most 10% SiO 2 , c) at most 15% Cr and d) at most 0.3% B. 제23항에 있어서, 상기 강이 정규 배향의 입상 규소강이고, 상기 마그네시아가 최대 20%의 인산염 및 최대 0.15%의 붕소를 포함하는 것이 특징인 방법.24. The method of claim 23, wherein the steel is granular silicon steel in normal orientation and the magnesia comprises up to 20% phosphate and up to 0.15% boron. 제24항에 있어서, 상기 마그네시아가 4-15%양의 인산칼슘, 2-10%의 Cr, 최대 0.10%의 B및 3-7%의 SiO2를 포함하는 것이 특징인 방법.The method of claim 24, wherein the magnesia comprises 4-15% calcium phosphate, 2-10% Cr, up to 0.10% B, and 3-7% SiO 2 . 제23항에 있어서, 상기 강이 고 투자율의 배향된 입상 규소강이고, 상기 마그네시아가 5-10%의 TiO2, 3-7%의 SiO2, 2.5-5%의 Cr 및 0.05-0.15%의 B를 포함하는 것이 특징인 방법.24. The method of claim 23, wherein the steel is a high permeability oriented granular silicon steel, the magnesia being 5-10% TiO 2 , 3-7% SiO 2 , 2.5-5% Cr and 0.05-0.15% A method characterized by comprising B. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900014201A 1989-09-08 1990-09-08 Magnesium oxide coating for electrical steels and the method of coating KR0173781B1 (en)

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US40471489A 1989-09-08 1989-09-08
US404,714 1989-09-08

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BR9004444A (en) 1991-09-10
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CA2024226A1 (en) 1991-03-09
KR0173781B1 (en) 1999-02-18
CA2024226C (en) 2000-02-15
DE69015060T2 (en) 1995-04-27
EP0416420A2 (en) 1991-03-13
DE69015060D1 (en) 1995-01-26
JPH03120376A (en) 1991-05-22
JP2686455B2 (en) 1997-12-08

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