KR890002615B1 - Process for manufacturing of silicon steel plate - Google Patents

Process for manufacturing of silicon steel plate

Info

Publication number
KR890002615B1
KR890002615B1 KR8509404A KR850009404A KR890002615B1 KR 890002615 B1 KR890002615 B1 KR 890002615B1 KR 8509404 A KR8509404 A KR 8509404A KR 850009404 A KR850009404 A KR 850009404A KR 890002615 B1 KR890002615 B1 KR 890002615B1
Authority
KR
South Korea
Prior art keywords
manufacturing
steel plate
silicon steel
reduction rate
cold rolling
Prior art date
Application number
KR8509404A
Other languages
Korean (ko)
Other versions
KR870006208A (en
Inventor
Byong-Ryong Kim
Hui-Kyong Mun
Original Assignee
Po Hang Iron & Steel
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 Po Hang Iron & Steel filed Critical Po Hang Iron & Steel
Priority to KR8509404A priority Critical patent/KR890002615B1/en
Publication of KR870006208A publication Critical patent/KR870006208A/en
Application granted granted Critical
Publication of KR890002615B1 publication Critical patent/KR890002615B1/en

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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1233—Cold rolling
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—Hot rolling
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon

Landscapes

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

Abstract

The manufacturing method for silicon steel plate is characterized by finish hot rolling the steel billet at 900 deg.C, air cooling, coiling at 750 deg.C, first cold rolling at 83-86% reduction rate after preliminary annealing, and second cold rolling at 17-25% reduction rate after intermediate annealing. The steel billet comprises (in wt.%) 0.03-0.08% C, 2.5-4.0% Si, 0.05-0.2% Mn, 0.005- 0.04% S, 0.01-0.06% sol.Al, 0.003-0.012% N, and the balance Fe.
KR8509404A 1985-12-14 1985-12-14 Process for manufacturing of silicon steel plate KR890002615B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR8509404A KR890002615B1 (en) 1985-12-14 1985-12-14 Process for manufacturing of silicon steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR8509404A KR890002615B1 (en) 1985-12-14 1985-12-14 Process for manufacturing of silicon steel plate

Publications (2)

Publication Number Publication Date
KR870006208A KR870006208A (en) 1987-07-10
KR890002615B1 true KR890002615B1 (en) 1989-07-20

Family

ID=19244143

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8509404A KR890002615B1 (en) 1985-12-14 1985-12-14 Process for manufacturing of silicon steel plate

Country Status (1)

Country Link
KR (1) KR890002615B1 (en)

Also Published As

Publication number Publication date
KR870006208A (en) 1987-07-10

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Legal Events

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E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19970714

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee