JPS5450437A - Method and equipment for descaling hot rolled steel sheet - Google Patents

Method and equipment for descaling hot rolled steel sheet

Info

Publication number
JPS5450437A
JPS5450437A JP11670677A JP11670677A JPS5450437A JP S5450437 A JPS5450437 A JP S5450437A JP 11670677 A JP11670677 A JP 11670677A JP 11670677 A JP11670677 A JP 11670677A JP S5450437 A JPS5450437 A JP S5450437A
Authority
JP
Japan
Prior art keywords
rolled steel
steel sheet
sheet
hot rolled
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.)
Pending
Application number
JP11670677A
Other languages
Japanese (ja)
Inventor
Mitsuru Kubo
Toshiyuki Kajiwara
Tadashi Nishino
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP11670677A priority Critical patent/JPS5450437A/en
Publication of JPS5450437A publication Critical patent/JPS5450437A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To thoroughly descale hot rolled steel sheet with high efficiency and no environmental pollution by qeunching the sheet of a predetermined temp. range at a predetermined cooling rate, follwed by mechanical descaling.
CONSTITUTION: Hot rolled steel sheet 1 of 723W570°C is uncoiled by uncioler 2, cooled by cooler 3 to a temp. below 200°C at a cooling rate over 20°C/min, bent by 1.5W15% with bending roll 4, thoroughly descaled with brushing unit 5, and rolled round cioder 6. It is desirable to begin the above processes whtn the sheet hot coiler in a hot rolling process is in the range of 570W723°C. The above processes are begun after heating the coiled sheet to 570W723°C if necessary. The cooling is pref. begun from the outside of the metal strip
COPYRIGHT: (C)1979,JPO&Japio
JP11670677A 1977-09-30 1977-09-30 Method and equipment for descaling hot rolled steel sheet Pending JPS5450437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11670677A JPS5450437A (en) 1977-09-30 1977-09-30 Method and equipment for descaling hot rolled steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11670677A JPS5450437A (en) 1977-09-30 1977-09-30 Method and equipment for descaling hot rolled steel sheet

Publications (1)

Publication Number Publication Date
JPS5450437A true JPS5450437A (en) 1979-04-20

Family

ID=14693804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11670677A Pending JPS5450437A (en) 1977-09-30 1977-09-30 Method and equipment for descaling hot rolled steel sheet

Country Status (1)

Country Link
JP (1) JPS5450437A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5686602A (en) * 1979-12-14 1981-07-14 Ishikawajima Harima Heavy Ind Co Ltd Rolling plant
JPS56160825A (en) * 1980-05-16 1981-12-10 Mitsubishi Heavy Ind Ltd Descaling device of steel plate
JPS56163258A (en) * 1980-05-19 1981-12-15 Mitsubishi Heavy Ind Ltd Descaling method for steel plate
JPS579504A (en) * 1980-06-23 1982-01-19 Nisshin Steel Co Ltd Manufacture of hot rolled steel strip with excellent descalability
JPS5739024A (en) * 1980-08-20 1982-03-04 Nisshin Steel Co Ltd Scale removing method for hot rolled steel strip
JPS57156216U (en) * 1981-03-24 1982-10-01
JPS60118317A (en) * 1983-11-29 1985-06-25 Nippon Steel Corp Carrying method of hot rolling band steel
JPS63183714A (en) * 1987-01-24 1988-07-29 Hitachi Ltd Hot rolling line

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5686602A (en) * 1979-12-14 1981-07-14 Ishikawajima Harima Heavy Ind Co Ltd Rolling plant
JPS56160825A (en) * 1980-05-16 1981-12-10 Mitsubishi Heavy Ind Ltd Descaling device of steel plate
JPS56163258A (en) * 1980-05-19 1981-12-15 Mitsubishi Heavy Ind Ltd Descaling method for steel plate
JPS579504A (en) * 1980-06-23 1982-01-19 Nisshin Steel Co Ltd Manufacture of hot rolled steel strip with excellent descalability
JPS6327089B2 (en) * 1980-06-23 1988-06-01 Nitsushin Seiko Kk
JPS5739024A (en) * 1980-08-20 1982-03-04 Nisshin Steel Co Ltd Scale removing method for hot rolled steel strip
JPS57156216U (en) * 1981-03-24 1982-10-01
JPS60118317A (en) * 1983-11-29 1985-06-25 Nippon Steel Corp Carrying method of hot rolling band steel
JPS63183714A (en) * 1987-01-24 1988-07-29 Hitachi Ltd Hot rolling line

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