KR900010044A - Electrical insulation film formation method of non-oriented electrical steel sheet - Google Patents

Electrical insulation film formation method of non-oriented electrical steel sheet Download PDF

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Publication number
KR900010044A
KR900010044A KR1019880017922A KR880017922A KR900010044A KR 900010044 A KR900010044 A KR 900010044A KR 1019880017922 A KR1019880017922 A KR 1019880017922A KR 880017922 A KR880017922 A KR 880017922A KR 900010044 A KR900010044 A KR 900010044A
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KR
South Korea
Prior art keywords
solution
steel sheet
electrical steel
added
film formation
Prior art date
Application number
KR1019880017922A
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Korean (ko)
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KR910002724B1 (en
Inventor
유영종
Original Assignee
정명식
포항종합제철 주식회사
박태준
재단법인 산업과학기술연구소
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Priority to KR1019880017922A priority Critical patent/KR910002724B1/en
Publication of KR900010044A publication Critical patent/KR900010044A/en
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Publication of KR910002724B1 publication Critical patent/KR910002724B1/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

내용 없음No content

Description

무방향성 전기강판의 전기절연피막 형성방법Electrical insulation film formation method of non-oriented electrical steel sheet

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

Claims (1)

무방향성 전기강판의 전기절연피막을 형성시키는 방법에 있어서, 86%의 인산 100g에 대하여 실리카분을 1.5-15g 첨가하여 제1인산 알루미늄 또는 제1인산 마그네슘염용액을 제조한다음(제1액), 제1액내의 85%인산 100g에 대하여 산화칼슘 28.7-31.0g 또는 산화마그네슘 22-29g 중 적어도 1종을 무수크롬산 100g에 용해시킨 크롬산염액을 2-10 (CrO3기준으로), 에틸렌그리콜을 5-70g(크롬산염 용액내의 CrO3100g에 대하여)을 첨가한다음, 콜로이달실리카를 고형분으로 7-95g(상기 제1액내의 인산(85%)100g)에 대하여) 첨가시킨 처리액을 전기강판표면에 균일하에 도포하고 소둔하는 것을 특징으로 하는 무방향성전기강판의 전기절연피막형성방법.In the method for forming an electrical insulating film of a non-oriented electrical steel sheet, 1.5-15 g of silica powder is added to 100 g of 86% phosphoric acid to prepare a first aluminum phosphate solution or a first magnesium phosphate salt solution (first solution). 2-10 (based on CrO 3 ) and chromium chromate solution in which at least one of calcium oxide 28.7-31.0g or magnesium oxide 22-29g was dissolved in 100g of 85% phosphoric acid in the first solution. 5-70 g (to 100 g of CrO 3 in the chromate solution) were added, and then the treatment solution in which 7 to 95 g of colloidal silica was added as a solid (to 100 g of phosphoric acid (85%) in the first solution) was added. A method of forming an electrical insulating film of a non-oriented electrical steel sheet, characterized in that it is applied and annealed uniformly on the surface of the electrical steel sheet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880017922A 1988-12-30 1988-12-30 Process for forming insulated coating of non oriented electrical steel sheets KR910002724B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880017922A KR910002724B1 (en) 1988-12-30 1988-12-30 Process for forming insulated coating of non oriented electrical steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880017922A KR910002724B1 (en) 1988-12-30 1988-12-30 Process for forming insulated coating of non oriented electrical steel sheets

Publications (2)

Publication Number Publication Date
KR900010044A true KR900010044A (en) 1990-07-06
KR910002724B1 KR910002724B1 (en) 1991-05-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880017922A KR910002724B1 (en) 1988-12-30 1988-12-30 Process for forming insulated coating of non oriented electrical steel sheets

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KR (1) KR910002724B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384452B1 (en) * 1996-12-09 2003-08-27 주식회사 포스코 Composition for forming non-grain oriented magnetic strip insulating coating film and method for forming insulating coating film using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384452B1 (en) * 1996-12-09 2003-08-27 주식회사 포스코 Composition for forming non-grain oriented magnetic strip insulating coating film and method for forming insulating coating film using the same

Also Published As

Publication number Publication date
KR910002724B1 (en) 1991-05-03

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