JPS5723037A - Method for cooling strip - Google Patents

Method for cooling strip

Info

Publication number
JPS5723037A
JPS5723037A JP9748380A JP9748380A JPS5723037A JP S5723037 A JPS5723037 A JP S5723037A JP 9748380 A JP9748380 A JP 9748380A JP 9748380 A JP9748380 A JP 9748380A JP S5723037 A JPS5723037 A JP S5723037A
Authority
JP
Japan
Prior art keywords
strip
temp
cooling
formula
difference
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
JP9748380A
Other languages
Japanese (ja)
Other versions
JPS6259171B2 (en
Inventor
Katsumi Makihara
Kenichi Yanagi
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 JP9748380A priority Critical patent/JPS5723037A/en
Publication of JPS5723037A publication Critical patent/JPS5723037A/en
Publication of JPS6259171B2 publication Critical patent/JPS6259171B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To prevent deformation of a strip caused by ununiform cooling by a method wherein temp. difference of the strip, longitudinal elastic coefficient and linear expansion coefficient are measured when a deformation amount is reached to a max. tolerance value and a contact length of the strip and a cooling roll is controlled so as to make different thermal stress calculated from average temp difference of the strip lower than a yield point of said strip. CONSTITUTION:Usually, when a width direction of the strip is fixed, extension DELTAL of the strip due to temp. difference DELTAT of longitudinal both end parts is imparted by a formula I when linear expansion coefficient is alpha and a length is L and strain epsilon is shown by a formula II. Further, thermal stress sigma of the strip plate is shown by a formula III (wherein E is longitudinal elastic coefficient). On the other hand, if thermal stress partially generated in cooling the strip by a practical cooling roll is made smaller than a yield point sigmaS of the strip, any deformation of the strip is not generated. That is, the temp, difference DELTAT may by controlled so as to satisfy a condition of a formula IV. As the result, quality deterioration of the strip due to deformation during cooling can be prevented beforehand.
JP9748380A 1980-07-18 1980-07-18 Method for cooling strip Granted JPS5723037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9748380A JPS5723037A (en) 1980-07-18 1980-07-18 Method for cooling strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9748380A JPS5723037A (en) 1980-07-18 1980-07-18 Method for cooling strip

Publications (2)

Publication Number Publication Date
JPS5723037A true JPS5723037A (en) 1982-02-06
JPS6259171B2 JPS6259171B2 (en) 1987-12-09

Family

ID=14193512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9748380A Granted JPS5723037A (en) 1980-07-18 1980-07-18 Method for cooling strip

Country Status (1)

Country Link
JP (1) JPS5723037A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495009A (en) * 1982-07-08 1985-01-22 Kawasaki Steel Corporation Method of cooling cold steel strip with cooling rolls
US4705579A (en) * 1983-02-03 1987-11-10 Nippon Steel Corporation Method for cooling a metal strip in a continuous annealing furnace
JPS63109804A (en) * 1986-10-25 1988-05-14 アキレス株式会社 Production of artificial leather shoes
JPH0717694U (en) * 1991-10-15 1995-03-31 季子 幸野 Bicycle basket cover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495009A (en) * 1982-07-08 1985-01-22 Kawasaki Steel Corporation Method of cooling cold steel strip with cooling rolls
US4705579A (en) * 1983-02-03 1987-11-10 Nippon Steel Corporation Method for cooling a metal strip in a continuous annealing furnace
JPS63109804A (en) * 1986-10-25 1988-05-14 アキレス株式会社 Production of artificial leather shoes
JPH0717694U (en) * 1991-10-15 1995-03-31 季子 幸野 Bicycle basket cover

Also Published As

Publication number Publication date
JPS6259171B2 (en) 1987-12-09

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