JPS56156718A - Manufacture of cold rolled steel plate - Google Patents

Manufacture of cold rolled steel plate

Info

Publication number
JPS56156718A
JPS56156718A JP6020780A JP6020780A JPS56156718A JP S56156718 A JPS56156718 A JP S56156718A JP 6020780 A JP6020780 A JP 6020780A JP 6020780 A JP6020780 A JP 6020780A JP S56156718 A JPS56156718 A JP S56156718A
Authority
JP
Japan
Prior art keywords
steel plate
scales
cold rolled
cooled
atmosphere
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
JP6020780A
Other languages
Japanese (ja)
Other versions
JPS6250530B2 (en
Inventor
Hajime Hinoto
Teruo Iura
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 JP6020780A priority Critical patent/JPS56156718A/en
Publication of JPS56156718A publication Critical patent/JPS56156718A/en
Publication of JPS6250530B2 publication Critical patent/JPS6250530B2/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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips

Landscapes

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

Abstract

PURPOSE:To reduce steps of a process and labor by cold rolling a steel plate directly with adhering scales and making box annealing in the atmosphere of nonreducing gas and thereby enabling easy removing of scales. CONSTITUTION:A hot rolled steel plate carrying adhered scales is directly cold rolled at a rolling reduction of 70% to obtain a steel plate covered with black fine powdery scales. This is box annealed in the nonreducing atmosphere, for instance gaseous N2 etc., and cooled in the furnace. Scales adhered to the surface of the cooled steel plate can be removed easily by the drive thrust method and the liquid honing method. The steel plate made rolled free from scales is excellent in cleanness of the surface and adherence of coating.
JP6020780A 1980-05-07 1980-05-07 Manufacture of cold rolled steel plate Granted JPS56156718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6020780A JPS56156718A (en) 1980-05-07 1980-05-07 Manufacture of cold rolled steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6020780A JPS56156718A (en) 1980-05-07 1980-05-07 Manufacture of cold rolled steel plate

Publications (2)

Publication Number Publication Date
JPS56156718A true JPS56156718A (en) 1981-12-03
JPS6250530B2 JPS6250530B2 (en) 1987-10-26

Family

ID=13135463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6020780A Granted JPS56156718A (en) 1980-05-07 1980-05-07 Manufacture of cold rolled steel plate

Country Status (1)

Country Link
JP (1) JPS56156718A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133410A (en) * 1978-04-08 1979-10-17 Nippon Steel Corp Production of cold rolled steel sheets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133410A (en) * 1978-04-08 1979-10-17 Nippon Steel Corp Production of cold rolled steel sheets

Also Published As

Publication number Publication date
JPS6250530B2 (en) 1987-10-26

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