JPS55122622A - Descaling method and apparatus thereof - Google Patents

Descaling method and apparatus thereof

Info

Publication number
JPS55122622A
JPS55122622A JP2988179A JP2988179A JPS55122622A JP S55122622 A JPS55122622 A JP S55122622A JP 2988179 A JP2988179 A JP 2988179A JP 2988179 A JP2988179 A JP 2988179A JP S55122622 A JPS55122622 A JP S55122622A
Authority
JP
Japan
Prior art keywords
coil
strip
cooling
scale layer
cooled
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
JP2988179A
Other languages
Japanese (ja)
Inventor
Tomoaki Kimura
Mitsuru Kubo
Masahiko Ito
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 JP2988179A priority Critical patent/JPS55122622A/en
Publication of JPS55122622A publication Critical patent/JPS55122622A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To remove scale efficiently, by cooling high temperature steel coil directly in a liquid bath to form a scale layer, and mechanically crushing and removing the scale layer while uncoiling.
CONSTITUTION: After hot rolling, a high temperature coil 1 is bundled with a coil band as required, and mounted on a mount 3 of a water cooling pit 2, and is immersed in cooling water 4 to be cooled. In this case, the coil temperature after cooling should be preferably less than 250°C and more than 70°C. The cooled coil 1 is let off by a let-off machine 5, and the rear end of a preceding strip and the front end of the coil 1 being let off are connected by welding with a welding machine 7, so that a strip 13 is supplied continuously. The strip is controlled of the tension by a bridle roller 11, and rolled at draft of 0.5W4% by means of a skin pass mill 12, and the scale layer is crushed, and the strip is finally descaled by a brushing device 6.
COPYRIGHT: (C)1980,JPO&Japio
JP2988179A 1979-03-16 1979-03-16 Descaling method and apparatus thereof Pending JPS55122622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2988179A JPS55122622A (en) 1979-03-16 1979-03-16 Descaling method and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2988179A JPS55122622A (en) 1979-03-16 1979-03-16 Descaling method and apparatus thereof

Publications (1)

Publication Number Publication Date
JPS55122622A true JPS55122622A (en) 1980-09-20

Family

ID=12288310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2988179A Pending JPS55122622A (en) 1979-03-16 1979-03-16 Descaling method and apparatus thereof

Country Status (1)

Country Link
JP (1) JPS55122622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579504A (en) * 1980-06-23 1982-01-19 Nisshin Steel Co Ltd Manufacture of hot rolled steel strip with excellent descalability
JPS5775217A (en) * 1980-10-28 1982-05-11 Sumitomo Metal Ind Ltd Descaling method for steel plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897713A (en) * 1972-03-27 1973-12-12
JPS5215421A (en) * 1975-07-26 1977-02-05 Nippon Steel Corp Mechanical descaling method
JPS5278630A (en) * 1975-12-25 1977-07-02 Hitachi Ltd Descaling method
JPS52104423A (en) * 1976-03-01 1977-09-01 Ishikawajima Harima Heavy Ind Method of and device for descaling steel strip and the like
JPS53133533A (en) * 1977-04-26 1978-11-21 Ishikawajima Harima Heavy Ind Co Ltd Mechanical descaline equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897713A (en) * 1972-03-27 1973-12-12
JPS5215421A (en) * 1975-07-26 1977-02-05 Nippon Steel Corp Mechanical descaling method
JPS5278630A (en) * 1975-12-25 1977-07-02 Hitachi Ltd Descaling method
JPS52104423A (en) * 1976-03-01 1977-09-01 Ishikawajima Harima Heavy Ind Method of and device for descaling steel strip and the like
JPS53133533A (en) * 1977-04-26 1978-11-21 Ishikawajima Harima Heavy Ind Co Ltd Mechanical descaline equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5775217A (en) * 1980-10-28 1982-05-11 Sumitomo Metal Ind Ltd Descaling method for steel plate

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