JPS5443823A - Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing - Google Patents

Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing

Info

Publication number
JPS5443823A
JPS5443823A JP11078177A JP11078177A JPS5443823A JP S5443823 A JPS5443823 A JP S5443823A JP 11078177 A JP11078177 A JP 11078177A JP 11078177 A JP11078177 A JP 11078177A JP S5443823 A JPS5443823 A JP S5443823A
Authority
JP
Japan
Prior art keywords
time
sheet
strain relief
steel sheet
electromagnetic steel
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
JP11078177A
Other languages
Japanese (ja)
Other versions
JPS617451B2 (en
Inventor
Minoru Kitayama
Motoharu Nakamura
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP11078177A priority Critical patent/JPS5443823A/en
Publication of JPS5443823A publication Critical patent/JPS5443823A/en
Publication of JPS617451B2 publication Critical patent/JPS617451B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To prevent the seizure of an electromagnetic steel sheet at the time of strain relief annealing after temper rolling by coating the surface of the sheet after cold rolling an annealing with a treating liquid of a specific compsn. to form an insulating film. CONSTITUTION:At the time of continuous annealing a temper rolling of a cold rolled electromagnetic steel sheet, the sheet after continuous annealing is coated with a treating liquid contg. one or more out of chromic acid, phosphoric acid and their salts or further contg. an inorg. colloidal substance such as colloidal silica or almina and an org. material such as ordinary temp. curing type alkyd resin or maleic resin. THe coating is then heated to 100-350 deg.C in a short time to form a 0.02- 0.8g/m<2> thick insulating film in case of contg. the colloidal substance or a 0.3-1.0g/ m<2> film in other cases. At the time of strain relief annealing after temper rolling, the seizure of the sheet can be prevented owing to the film, resulting in no deterioration of electric characteristics as an electromagnetic sheet.
JP11078177A 1977-09-14 1977-09-14 Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing Granted JPS5443823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11078177A JPS5443823A (en) 1977-09-14 1977-09-14 Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11078177A JPS5443823A (en) 1977-09-14 1977-09-14 Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing

Publications (2)

Publication Number Publication Date
JPS5443823A true JPS5443823A (en) 1979-04-06
JPS617451B2 JPS617451B2 (en) 1986-03-06

Family

ID=14544442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11078177A Granted JPS5443823A (en) 1977-09-14 1977-09-14 Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing

Country Status (1)

Country Link
JP (1) JPS5443823A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038068A (en) * 1983-08-10 1985-02-27 Sumitomo Metal Ind Ltd Formation of insulating film to electromagnetic steel plate
JPH01316424A (en) * 1988-06-16 1989-12-21 Nippon Steel Corp Formation of insulating film on grain-oriented magnetic steel sheet having excellent core workability and magnetic characteristic
JPH09122582A (en) * 1995-11-08 1997-05-13 Kawasaki Steel Corp Non-oriented silicon steel sheet excellent in punchability and annealed seizing resistance
WO2012011442A1 (en) * 2010-07-23 2012-01-26 新日本製鐵株式会社 Electromagnetic steel sheet and process for production thereof
JP5005844B2 (en) * 2010-10-29 2012-08-22 新日本製鐵株式会社 Electrical steel sheet and manufacturing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015013A (en) * 1973-04-30 1975-02-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015013A (en) * 1973-04-30 1975-02-17

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038068A (en) * 1983-08-10 1985-02-27 Sumitomo Metal Ind Ltd Formation of insulating film to electromagnetic steel plate
JPH0443715B2 (en) * 1983-08-10 1992-07-17 Sumitomo Metal Ind
JPH01316424A (en) * 1988-06-16 1989-12-21 Nippon Steel Corp Formation of insulating film on grain-oriented magnetic steel sheet having excellent core workability and magnetic characteristic
JPH0420987B2 (en) * 1988-06-16 1992-04-07 Nippon Steel Corp
JPH09122582A (en) * 1995-11-08 1997-05-13 Kawasaki Steel Corp Non-oriented silicon steel sheet excellent in punchability and annealed seizing resistance
WO2012011442A1 (en) * 2010-07-23 2012-01-26 新日本製鐵株式会社 Electromagnetic steel sheet and process for production thereof
JP5093411B2 (en) * 2010-07-23 2012-12-12 新日本製鐵株式会社 Magnetic steel sheet used for resin-molded laminated iron core and manufacturing method thereof
KR101458753B1 (en) * 2010-07-23 2014-11-05 신닛테츠스미킨 카부시키카이샤 Electromagnetic steel sheet used for resin molded laminated core and process for production thereof
US11377569B2 (en) 2010-07-23 2022-07-05 Nippon Steel Corporation Electrical steel sheet and method for manufacturing the same
JP5005844B2 (en) * 2010-10-29 2012-08-22 新日本製鐵株式会社 Electrical steel sheet and manufacturing method thereof
JPWO2012057168A1 (en) * 2010-10-29 2014-05-12 新日鐵住金株式会社 Electrical steel sheet and manufacturing method thereof

Also Published As

Publication number Publication date
JPS617451B2 (en) 1986-03-06

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