JPS579504A - Manufacture of hot rolled steel strip with excellent descalability - Google Patents

Manufacture of hot rolled steel strip with excellent descalability

Info

Publication number
JPS579504A
JPS579504A JP8391980A JP8391980A JPS579504A JP S579504 A JPS579504 A JP S579504A JP 8391980 A JP8391980 A JP 8391980A JP 8391980 A JP8391980 A JP 8391980A JP S579504 A JPS579504 A JP S579504A
Authority
JP
Japan
Prior art keywords
coiling
strip
steel strip
descaling
hot
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
JP8391980A
Other languages
Japanese (ja)
Other versions
JPS6327089B2 (en
Inventor
Masaro Kubota
Ichiu Takagi
Tomoaki Kimura
Mitsuru Kubo
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.)
Hitachi Ltd
Nippon Steel Nisshin Co Ltd
Original Assignee
Hitachi Ltd
Nisshin Steel Co 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 Hitachi Ltd, Nisshin Steel Co Ltd filed Critical Hitachi Ltd
Priority to JP8391980A priority Critical patent/JPS579504A/en
Publication of JPS579504A publication Critical patent/JPS579504A/en
Publication of JPS6327089B2 publication Critical patent/JPS6327089B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/22—Lateral spread control; Width control, e.g. by edge rolling

Landscapes

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

Abstract

PURPOSE: To manufacture a hot rolled steel strip in a coiled state entirely having an excellent properties for descaling, by coiling the strip at coiling temperature higher than a prescribed coiling temperature at an early stage of coiling, and thereafter at a prescribed coiling temperature, and by water cooling the strip as it is in the coiled state.
CONSTITUTION: A steel strip, hot rolled by a hot strip mill, is coiled at the ≥650°C coiling temperature at an early stage of coiling and thereafter at ≥570°C. Then, this hot coil, as it is in the coiled state, is water cooled. Or, the hot coil in the coiled state is cooled by dipping it in a warm water tank. Hereby, the entire coil is effectively prepared for a high efficient descaling work. The present metod is effectively applicable to both of mechanical descaling and chemical descaling.
COPYRIGHT: (C)1982,JPO&Japio
JP8391980A 1980-06-23 1980-06-23 Manufacture of hot rolled steel strip with excellent descalability Granted JPS579504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8391980A JPS579504A (en) 1980-06-23 1980-06-23 Manufacture of hot rolled steel strip with excellent descalability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8391980A JPS579504A (en) 1980-06-23 1980-06-23 Manufacture of hot rolled steel strip with excellent descalability

Publications (2)

Publication Number Publication Date
JPS579504A true JPS579504A (en) 1982-01-19
JPS6327089B2 JPS6327089B2 (en) 1988-06-01

Family

ID=13816003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8391980A Granted JPS579504A (en) 1980-06-23 1980-06-23 Manufacture of hot rolled steel strip with excellent descalability

Country Status (1)

Country Link
JP (1) JPS579504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109290377A (en) * 2018-09-25 2019-02-01 燕山大学 Eight cold mill group plate shape control method for rolling of one kind and system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897713A (en) * 1972-03-27 1973-12-12
JPS5450437A (en) * 1977-09-30 1979-04-20 Hitachi Ltd Method and equipment for descaling hot rolled steel sheet
JPS54126635A (en) * 1978-03-25 1979-10-02 Ishikawajima Harima Heavy Ind Co Ltd Treating method for hot rolling steel strip
JPS55122622A (en) * 1979-03-16 1980-09-20 Nisshin Steel Co Ltd Descaling method and apparatus thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897713A (en) * 1972-03-27 1973-12-12
JPS5450437A (en) * 1977-09-30 1979-04-20 Hitachi Ltd Method and equipment for descaling hot rolled steel sheet
JPS54126635A (en) * 1978-03-25 1979-10-02 Ishikawajima Harima Heavy Ind Co Ltd Treating method for hot rolling steel strip
JPS55122622A (en) * 1979-03-16 1980-09-20 Nisshin Steel Co Ltd Descaling method and apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109290377A (en) * 2018-09-25 2019-02-01 燕山大学 Eight cold mill group plate shape control method for rolling of one kind and system
CN109290377B (en) * 2018-09-25 2019-08-02 燕山大学 Eight cold mill group plate shape control method for rolling of one kind and system

Also Published As

Publication number Publication date
JPS6327089B2 (en) 1988-06-01

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