JPS57101673A - Formation of uniform undercoating film in directional silicon steel plate - Google Patents

Formation of uniform undercoating film in directional silicon steel plate

Info

Publication number
JPS57101673A
JPS57101673A JP17768480A JP17768480A JPS57101673A JP S57101673 A JPS57101673 A JP S57101673A JP 17768480 A JP17768480 A JP 17768480A JP 17768480 A JP17768480 A JP 17768480A JP S57101673 A JPS57101673 A JP S57101673A
Authority
JP
Japan
Prior art keywords
steel plate
annealing
silicon steel
formation
undercoating film
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
JP17768480A
Other languages
Japanese (ja)
Other versions
JPS6013430B2 (en
Inventor
Yoshio Obata
Seiji Obara
Katsuo Sadayori
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 JP17768480A priority Critical patent/JPS6013430B2/en
Publication of JPS57101673A publication Critical patent/JPS57101673A/en
Publication of JPS6013430B2 publication Critical patent/JPS6013430B2/en
Expired 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)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To form an undercoating film with excellent uniformity and close adhesiveness by a method wherein a silicon steel plate is subjected to decarburization and annealing and, thereafter, a surface of the steel plate is ground to a specific thickness and, after an annealing separating agent is coated thereon, final high temp annealing is carried out. CONSTITUTION:After a steel plate is subjected to decarburization and annealing, mainly, a FeO component of a thin oxide film formed on an uppermost layer thereof is removed by grinding or pickling to a thickness of about 0.025-0.5g/m<2> per side surface of the surface of the steel plate and unequality of every coil or in a coil width direction is corrected to equalize a surface layer. Subsequently, as an annealing separating agent, MgO or the like is coated thereon and, thereafter, high temp annealing is carried out. Thereby, a product yield or commodity value can be enhanced.
JP17768480A 1980-12-16 1980-12-16 Method for forming a uniform base film on grain-oriented silicon steel sheet Expired JPS6013430B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17768480A JPS6013430B2 (en) 1980-12-16 1980-12-16 Method for forming a uniform base film on grain-oriented silicon steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17768480A JPS6013430B2 (en) 1980-12-16 1980-12-16 Method for forming a uniform base film on grain-oriented silicon steel sheet

Publications (2)

Publication Number Publication Date
JPS57101673A true JPS57101673A (en) 1982-06-24
JPS6013430B2 JPS6013430B2 (en) 1985-04-06

Family

ID=16035291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17768480A Expired JPS6013430B2 (en) 1980-12-16 1980-12-16 Method for forming a uniform base film on grain-oriented silicon steel sheet

Country Status (1)

Country Link
JP (1) JPS6013430B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225619A2 (en) * 1985-12-06 1987-06-16 Nippon Steel Corporation Grain-oriented electrical steel sheet having improved glass film properties and low watt loss and a process for producing same
JPS62151521A (en) * 1985-12-26 1987-07-06 Nippon Steel Corp Manufacture of low iron loss grain oriented electrical sheet superior in glass film characteristic

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225619A2 (en) * 1985-12-06 1987-06-16 Nippon Steel Corporation Grain-oriented electrical steel sheet having improved glass film properties and low watt loss and a process for producing same
JPS62151521A (en) * 1985-12-26 1987-07-06 Nippon Steel Corp Manufacture of low iron loss grain oriented electrical sheet superior in glass film characteristic
JPH0327629B2 (en) * 1985-12-26 1991-04-16 Nippon Steel Corp

Also Published As

Publication number Publication date
JPS6013430B2 (en) 1985-04-06

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