JPS5625922A - Production of hot rolled plate and sheet of low carbon steel with superior cold rolling - Google Patents

Production of hot rolled plate and sheet of low carbon steel with superior cold rolling

Info

Publication number
JPS5625922A
JPS5625922A JP9984479A JP9984479A JPS5625922A JP S5625922 A JPS5625922 A JP S5625922A JP 9984479 A JP9984479 A JP 9984479A JP 9984479 A JP9984479 A JP 9984479A JP S5625922 A JPS5625922 A JP S5625922A
Authority
JP
Japan
Prior art keywords
carbon steel
hot
low carbon
cooling
rolled plate
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
JP9984479A
Other languages
Japanese (ja)
Other versions
JPS5933167B2 (en
Inventor
Teruaki Ikeda
Hiroaki Ueno
Toshio Iwamoto
Toshihiro Konishi
Akishige Yoshida
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 JP9984479A priority Critical patent/JPS5933167B2/en
Publication of JPS5625922A publication Critical patent/JPS5625922A/en
Publication of JPS5933167B2 publication Critical patent/JPS5933167B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE: To make it possible to produce hot rolled plate and sheet of low carbon steel with superior cold rolling under low heating energy by hot-processing low carbon steel slab at a low temperature, cooling it by means of both air cooling and water cooling and reeling it at a low temperature.
CONSTITUTION: Low carbon steel slab is hot-rolled at 1050W1200°C which is lower than the heating temperature 1,200W1,280°C used for usual hot-rolling. The finish rolling temperature is also made relatively low temperature of Ar3 transformation point W 650°C to make grains rough and soft. The heat-treated slab is cooled so that it is air-cooled at the average cooling speed of 10W20°C/sec for ≥4 sec in the first half of the cooling table and water-cooled at the average cooling speed of ≥30°C/sec in the latter half and is reeled at 480W600°C. As the result, the edge- most portion is sufficiently recrystalized and soft hot-rolled plate with even quality to the width direction without loss of acid washing can be produced under low heating energy.
COPYRIGHT: (C)1981,JPO&Japio
JP9984479A 1979-08-07 1979-08-07 Method for producing low carbon hot rolled steel sheet with good cold rollability Expired JPS5933167B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9984479A JPS5933167B2 (en) 1979-08-07 1979-08-07 Method for producing low carbon hot rolled steel sheet with good cold rollability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9984479A JPS5933167B2 (en) 1979-08-07 1979-08-07 Method for producing low carbon hot rolled steel sheet with good cold rollability

Publications (2)

Publication Number Publication Date
JPS5625922A true JPS5625922A (en) 1981-03-12
JPS5933167B2 JPS5933167B2 (en) 1984-08-14

Family

ID=14258104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9984479A Expired JPS5933167B2 (en) 1979-08-07 1979-08-07 Method for producing low carbon hot rolled steel sheet with good cold rollability

Country Status (1)

Country Link
JP (1) JPS5933167B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861228A (en) * 1981-10-06 1983-04-12 Kawasaki Steel Corp Production of original black plate for ultra thin galvanized steel plate having excellent shape
JPS5996224A (en) * 1982-11-26 1984-06-02 Nippon Kokan Kk <Nkk> Manufacture of hot rolled mild steel sheet for working

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861228A (en) * 1981-10-06 1983-04-12 Kawasaki Steel Corp Production of original black plate for ultra thin galvanized steel plate having excellent shape
JPS6053086B2 (en) * 1981-10-06 1985-11-22 川崎製鉄株式会社 Manufacturing method for ultra-thin galvanized steel sheets with excellent shape
JPS5996224A (en) * 1982-11-26 1984-06-02 Nippon Kokan Kk <Nkk> Manufacture of hot rolled mild steel sheet for working
JPH0369971B2 (en) * 1982-11-26 1991-11-06 Nippon Kokan Kk

Also Published As

Publication number Publication date
JPS5933167B2 (en) 1984-08-14

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