JPS5457414A - Method and apparatus for cooling steel sheet - Google Patents

Method and apparatus for cooling steel sheet

Info

Publication number
JPS5457414A
JPS5457414A JP12403277A JP12403277A JPS5457414A JP S5457414 A JPS5457414 A JP S5457414A JP 12403277 A JP12403277 A JP 12403277A JP 12403277 A JP12403277 A JP 12403277A JP S5457414 A JPS5457414 A JP S5457414A
Authority
JP
Japan
Prior art keywords
steel sheet
cooling water
flow rate
cooled
water
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
JP12403277A
Other languages
Japanese (ja)
Other versions
JPS6043209B2 (en
Inventor
Shoji Onaka
Mitsumasa Kanetaka
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP52124032A priority Critical patent/JPS6043209B2/en
Publication of JPS5457414A publication Critical patent/JPS5457414A/en
Publication of JPS6043209B2 publication Critical patent/JPS6043209B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE: To cool rapidly and without scattering the steel sheet, by cooling the upper surface of the steel sheet with the cooling water of laminar flow and the lower surface of the steel sheet with the spraying of cooling water and by feeding both of the above cooling water respectively under the prescribed pressure and while regulating the flow rate, when the thick steel sheet is cooled on line.
CONSTITUTION: The thick steel sheet 3 which has been hot rolled with the rolling mill 1, is cooled with water at the cooling zone 22. At this time, the upper surface of the steel sheet is cooled with the cooling water from the laminar flow nozzles 4 and the lower surface of the steel sheet is cooled with the cooling water from the spray nozzles 6. Both of the above cooling water are branched from the same duct and the water to be fed to the spray nozzles 6 is sent to the flow rate regulating valves 17a and 17b under a pressure of 2W5 kg/cm2 as it is without reducing its pressure. The above cooling water is sent to the header groups 7 for the spray nozzles 6 while regulating the flow rate of cooling water according to the thickness, temperature, etc. of the steel sheet 3. The water to be fed to the laminar flow nozzles 4 is decompressed further with the secondary reducing valve 12 after having been decompressed with the primary reducing valves 11a and 11b, and is sent to the header groups 5 under a pressure of 1kg/cm2 after the flow rate has been regulated with the flow rate regulating valve 13
COPYRIGHT: (C)1979,JPO&Japio
JP52124032A 1977-10-18 1977-10-18 steel plate cooling system Expired JPS6043209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52124032A JPS6043209B2 (en) 1977-10-18 1977-10-18 steel plate cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52124032A JPS6043209B2 (en) 1977-10-18 1977-10-18 steel plate cooling system

Publications (2)

Publication Number Publication Date
JPS5457414A true JPS5457414A (en) 1979-05-09
JPS6043209B2 JPS6043209B2 (en) 1985-09-27

Family

ID=14875332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52124032A Expired JPS6043209B2 (en) 1977-10-18 1977-10-18 steel plate cooling system

Country Status (1)

Country Link
JP (1) JPS6043209B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106422A (en) * 1980-12-23 1982-07-02 Kobe Steel Ltd Method for cooling hot-rolled steel sheet
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
JP2014097525A (en) * 2012-11-15 2014-05-29 Jfe Steel Corp Steel plate cooling device and steel plate cooling method
WO2019174826A1 (en) * 2018-03-12 2019-09-19 Sms Group Gmbh Cooling unit of a laminar cooling device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0268819U (en) * 1988-11-10 1990-05-24
CN107971345B (en) * 2016-10-25 2020-01-31 宝山钢铁股份有限公司 Process control system and control method for steel pipe on-line cooling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS431260Y1 (en) * 1964-10-28 1968-01-22
JPS5128560A (en) * 1974-09-03 1976-03-10 Mitsubishi Heavy Ind Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS431260Y1 (en) * 1964-10-28 1968-01-22
JPS5128560A (en) * 1974-09-03 1976-03-10 Mitsubishi Heavy Ind Ltd

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106422A (en) * 1980-12-23 1982-07-02 Kobe Steel Ltd Method for cooling hot-rolled steel sheet
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
JP2014097525A (en) * 2012-11-15 2014-05-29 Jfe Steel Corp Steel plate cooling device and steel plate cooling method
WO2019174826A1 (en) * 2018-03-12 2019-09-19 Sms Group Gmbh Cooling unit of a laminar cooling device
CN111836687A (en) * 2018-03-12 2020-10-27 Sms集团有限公司 Cooling group of laminar flow cooling device
JP2021516620A (en) * 2018-03-12 2021-07-08 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Cooling group of lamina cooling device
CN111836687B (en) * 2018-03-12 2023-03-31 Sms集团有限公司 Cooling group of laminar flow cooling device
US11745237B2 (en) 2018-03-12 2023-09-05 Sms Group Gmbh Cooling unit of a laminar cooling device

Also Published As

Publication number Publication date
JPS6043209B2 (en) 1985-09-27

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