JPS6479381A - Protective coating material for annealing - Google Patents

Protective coating material for annealing

Info

Publication number
JPS6479381A
JPS6479381A JP14062188A JP14062188A JPS6479381A JP S6479381 A JPS6479381 A JP S6479381A JP 14062188 A JP14062188 A JP 14062188A JP 14062188 A JP14062188 A JP 14062188A JP S6479381 A JPS6479381 A JP S6479381A
Authority
JP
Japan
Prior art keywords
coating material
protective coating
annealing
powder
nonhydratable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14062188A
Other languages
Japanese (ja)
Other versions
JP2683036B2 (en
Inventor
Hirotake Ishitobi
Yasuo Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP63140621A priority Critical patent/JP2683036B2/en
Publication of JPS6479381A publication Critical patent/JPS6479381A/en
Application granted granted Critical
Publication of JP2683036B2 publication Critical patent/JP2683036B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277—Modifying 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
    • C21D8/1283—Application of a separating or insulating coating

Abstract

PURPOSE:To obtain a protective coating material for annealing giving a clean, smooth surface nearly free from oxide to a grain-oriented silicon steel sheet by mixing nonhydratable powder of Ca or Sr metasilicate or Ca aluminate with Al2O3 powder in a prescribed ratio. CONSTITUTION:This protective coating material for annealing is composed of 15-60wt.% nonhydratable powder of Ca or Sr metasilicate or Ca aluminate and the balance Al2O3 powder. The protective coating material is used in the final box annealing of a grain-oriented silicon steel sheet and gives a clean, smooth surface nearly free form oxide.
JP63140621A 1987-06-10 1988-06-09 Annealing agent Expired - Fee Related JP2683036B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63140621A JP2683036B2 (en) 1987-06-10 1988-06-09 Annealing agent

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-143180 1987-06-10
JP14318087 1987-06-10
JP63140621A JP2683036B2 (en) 1987-06-10 1988-06-09 Annealing agent

Publications (2)

Publication Number Publication Date
JPS6479381A true JPS6479381A (en) 1989-03-24
JP2683036B2 JP2683036B2 (en) 1997-11-26

Family

ID=26473079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63140621A Expired - Fee Related JP2683036B2 (en) 1987-06-10 1988-06-09 Annealing agent

Country Status (1)

Country Link
JP (1) JP2683036B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04259329A (en) * 1991-02-12 1992-09-14 Sumitomo Metal Ind Ltd Production of grain-oriented silicon steel sheet excellent in blankability
WO2018097100A1 (en) * 2016-11-28 2018-05-31 Ｊｆｅスチール株式会社 Grain-oriented electromagnetic steel sheet and method for producing grain-oriented electromagnetic steel sheet
JP2018090852A (en) * 2016-12-01 2018-06-14 Ｊｆｅスチール株式会社 Production method of directional electromagnetic steel sheet
CN109923223A (en) * 2016-10-26 2019-06-21 Posco公司 Oriented electrical steel annealing separator composition, oriented electrical steel and its manufacturing method
WO2020149336A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for manufacturing grain-oriented electrical steel sheet
WO2020149337A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for manufacturing grain-oriented electrical steel sheet
CN114395663A (en) * 2021-12-31 2022-04-26 重庆望变电气（集团）股份有限公司 Annealing separant, preparation method of annealing separant suspension and preparation method of underlayer-free low-temperature high-magnetic-induction oriented silicon steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5589423A (en) * 1978-12-27 1980-07-07 Kawasaki Steel Corp Preparation of directional silicon steel plate without undercoating
JPS5996278A (en) * 1982-11-25 1984-06-02 Kawasaki Steel Corp Separating agent for annealing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5589423A (en) * 1978-12-27 1980-07-07 Kawasaki Steel Corp Preparation of directional silicon steel plate without undercoating
JPS5996278A (en) * 1982-11-25 1984-06-02 Kawasaki Steel Corp Separating agent for annealing

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04259329A (en) * 1991-02-12 1992-09-14 Sumitomo Metal Ind Ltd Production of grain-oriented silicon steel sheet excellent in blankability
EP3533885A4 (en) * 2016-10-26 2019-09-04 Posco Annealing separator composition for oriented electrical steel sheet, oriented electrical steel sheet, and method for manufacturing oriented electrical steel sheet
US11946114B2 (en) 2016-10-26 2024-04-02 Posco Co., Ltd Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet
US20220119910A1 (en) * 2016-10-26 2022-04-21 Posco Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet
US11225700B2 (en) * 2016-10-26 2022-01-18 Posco Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet
CN109923223A (en) * 2016-10-26 2019-06-21 Posco公司 Oriented electrical steel annealing separator composition, oriented electrical steel and its manufacturing method
KR20190069486A (en) * 2016-11-28 2019-06-19 제이에프이 스틸 가부시키가이샤 METHOD FOR MANUFACTURING ORGANIC ELECTRIC STEEL SHEET
RU2709911C1 (en) * 2016-11-28 2019-12-23 ДжФЕ СТИЛ КОРПОРЕЙШН Textured electromagnetic steel sheet and method of producing textured electromagnetic steel sheet
JPWO2018097100A1 (en) * 2016-11-28 2018-11-22 Ｊｆｅスチール株式会社 Directional electrical steel sheet and method for manufacturing the grain oriented electrical steel sheet
US11781196B2 (en) 2016-11-28 2023-10-10 Jfe Steel Corporation Grain-oriented electromagnetic steel sheet and method of producing grain-oriented electromagnetic steel sheet
WO2018097100A1 (en) * 2016-11-28 2018-05-31 Ｊｆｅスチール株式会社 Grain-oriented electromagnetic steel sheet and method for producing grain-oriented electromagnetic steel sheet
JP2018090852A (en) * 2016-12-01 2018-06-14 Ｊｆｅスチール株式会社 Production method of directional electromagnetic steel sheet
WO2020149336A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for manufacturing grain-oriented electrical steel sheet
WO2020149337A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Method for manufacturing grain-oriented electrical steel sheet
JPWO2020149336A1 (en) * 2019-01-16 2021-11-25 日本製鉄株式会社 Manufacturing method of grain-oriented electrical steel sheet
JPWO2020149337A1 (en) * 2019-01-16 2021-11-25 日本製鉄株式会社 Manufacturing method of grain-oriented electrical steel sheet
RU2768900C1 (en) * 2019-01-16 2022-03-25 Ниппон Стил Корпорейшн Method of producing electrical steel sheet with oriented grain structure
CN114395663A (en) * 2021-12-31 2022-04-26 重庆望变电气（集团）股份有限公司 Annealing separant, preparation method of annealing separant suspension and preparation method of underlayer-free low-temperature high-magnetic-induction oriented silicon steel

Also Published As

Publication number Publication date
JP2683036B2 (en) 1997-11-26

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Legal Events

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LAPS Cancellation because of no payment of annual fees