JPS5770019A - Method for improving exfollation of scale on surface of hot rolled steel plate - Google Patents

Method for improving exfollation of scale on surface of hot rolled steel plate

Info

Publication number
JPS5770019A
JPS5770019A JP14567780A JP14567780A JPS5770019A JP S5770019 A JPS5770019 A JP S5770019A JP 14567780 A JP14567780 A JP 14567780A JP 14567780 A JP14567780 A JP 14567780A JP S5770019 A JPS5770019 A JP S5770019A
Authority
JP
Japan
Prior art keywords
steel plate
resin
cooling water
exfollation
scale
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.)
Pending
Application number
JP14567780A
Other languages
Japanese (ja)
Inventor
Toshihiko Odohira
Takato Shigemura
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP14567780A priority Critical patent/JPS5770019A/en
Publication of JPS5770019A publication Critical patent/JPS5770019A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To form a wustite layer on the surface of steel plates and to improve the descaling property, by adding a water soluble organic resin or the resin and metallic powder to the cooling water ejected upon the surface of steel plates to control the coiling temperature at the runout table, and by burning it with a heat maintained by the steel plates. CONSTITUTION:To control the coiling temperature of a steel plate 6 which has just completed its finish rolling, cooling water 4 is ejected upon the surface of the steel plate 6 from a nozzle 3 at a runout table 2 installed between the exit of a finishing mill and a coiler 5 in a hot rolling machine. When a water soluble organic resin or the resin and metallic powder are added to the cooling water 4, these substances are burned by the heat maintained by the steel plate 6. In this way, a film composed of a carbinized resin or of a carbinized resin and a metallic oxide is formed on the surface of the steel plate 6, and the descaling property is improved.
JP14567780A 1980-10-20 1980-10-20 Method for improving exfollation of scale on surface of hot rolled steel plate Pending JPS5770019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14567780A JPS5770019A (en) 1980-10-20 1980-10-20 Method for improving exfollation of scale on surface of hot rolled steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14567780A JPS5770019A (en) 1980-10-20 1980-10-20 Method for improving exfollation of scale on surface of hot rolled steel plate

Publications (1)

Publication Number Publication Date
JPS5770019A true JPS5770019A (en) 1982-04-30

Family

ID=15390527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14567780A Pending JPS5770019A (en) 1980-10-20 1980-10-20 Method for improving exfollation of scale on surface of hot rolled steel plate

Country Status (1)

Country Link
JP (1) JPS5770019A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216770B1 (en) * 1997-11-17 2001-04-17 Sms Schloemann-Siemag Aktiengesellschaft Method of improving the surface quality of a continuously cast slab
JP2013237101A (en) * 2012-04-20 2013-11-28 Kobe Steel Ltd Steel having excellent hydrogen induced cracking resistance and method for producing the same
JP2014214374A (en) * 2013-04-30 2014-11-17 株式会社神戸製鋼所 Method of producing hot rolled steel sheet and hot rolled steel sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216770B1 (en) * 1997-11-17 2001-04-17 Sms Schloemann-Siemag Aktiengesellschaft Method of improving the surface quality of a continuously cast slab
JP2013237101A (en) * 2012-04-20 2013-11-28 Kobe Steel Ltd Steel having excellent hydrogen induced cracking resistance and method for producing the same
JP2014214374A (en) * 2013-04-30 2014-11-17 株式会社神戸製鋼所 Method of producing hot rolled steel sheet and hot rolled steel sheet

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