JPS5271318A - Preventing generation of cracksproduced on surface of hearth roll - Google Patents

Preventing generation of cracksproduced on surface of hearth roll

Info

Publication number
JPS5271318A
JPS5271318A JP14772875A JP14772875A JPS5271318A JP S5271318 A JPS5271318 A JP S5271318A JP 14772875 A JP14772875 A JP 14772875A JP 14772875 A JP14772875 A JP 14772875A JP S5271318 A JPS5271318 A JP S5271318A
Authority
JP
Japan
Prior art keywords
cooling
hearth roll
roll
cracksproduced
preventing generation
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
JP14772875A
Other languages
Japanese (ja)
Inventor
Yoshihiro Katsuya
Takabumi Sueyoshi
Masaru Mochida
Mineo Murata
Yoshio Saito
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP14772875A priority Critical patent/JPS5271318A/en
Publication of JPS5271318A publication Critical patent/JPS5271318A/en
Pending 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
    • C21D9/66—Tower-type furnaces

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

Abstract

PURPOSE:To prevent the generation of cracks due to the temperature difference to the direction of axis of the hearth roll, by cooling the part of the hearth roll which does not contact the steel belt with the gas for cooling of the same kind with the gas of the at mosphere inside the furnace from the outer circumference of the roll, or by cooling the above part by making flow the fluid for cooling into the inside of the roll.
JP14772875A 1975-12-11 1975-12-11 Preventing generation of cracksproduced on surface of hearth roll Pending JPS5271318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14772875A JPS5271318A (en) 1975-12-11 1975-12-11 Preventing generation of cracksproduced on surface of hearth roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14772875A JPS5271318A (en) 1975-12-11 1975-12-11 Preventing generation of cracksproduced on surface of hearth roll

Publications (1)

Publication Number Publication Date
JPS5271318A true JPS5271318A (en) 1977-06-14

Family

ID=15436814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14772875A Pending JPS5271318A (en) 1975-12-11 1975-12-11 Preventing generation of cracksproduced on surface of hearth roll

Country Status (1)

Country Link
JP (1) JPS5271318A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119208A (en) * 1977-03-28 1978-10-18 Nippon Kokan Kk <Nkk> Preventing method for meandering of strip in continuous annealing furnace
JPS53130210A (en) * 1977-04-20 1978-11-14 Chugai Ro Kogyo Kaisha Ltd Continuous vertical heat treating furnace having roll chamber
JPS59181859U (en) * 1983-05-19 1984-12-04 新日本製鐵株式会社 Heat treatment furnace hearth roll protection and cleaning equipment
US6444163B1 (en) 2001-03-06 2002-09-03 Kawasaki Steel Corporation Heat shielding apparatus for vertical continuous annealing furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119208A (en) * 1977-03-28 1978-10-18 Nippon Kokan Kk <Nkk> Preventing method for meandering of strip in continuous annealing furnace
JPS53130210A (en) * 1977-04-20 1978-11-14 Chugai Ro Kogyo Kaisha Ltd Continuous vertical heat treating furnace having roll chamber
JPS5723733B2 (en) * 1977-04-20 1982-05-20
JPS59181859U (en) * 1983-05-19 1984-12-04 新日本製鐵株式会社 Heat treatment furnace hearth roll protection and cleaning equipment
JPS6328200Y2 (en) * 1983-05-19 1988-07-29
US6444163B1 (en) 2001-03-06 2002-09-03 Kawasaki Steel Corporation Heat shielding apparatus for vertical continuous annealing furnace

Similar Documents

Publication Publication Date Title
JPS5354106A (en) Vertical direct heating furnace
JPS52119473A (en) Reclamation apparatus for active carbon
JPS5271318A (en) Preventing generation of cracksproduced on surface of hearth roll
JPS5223102A (en) Process for manufacturing formed coke
JPS5223107A (en) Method for manufacturing metallurgical formed coke
JPS5237903A (en) Apparatus for blowing cooling gas into the quenching chamber of a coke dry quenching plant
JPS5316307A (en) Operating method for hot stove
JPS5244703A (en) Disjointing method of hot blast furnace dome
JPS5241602A (en) Vertical, internal heating, continuous coke oven
JPS5314105A (en) Executing method for construction of blast furnace trough
JPS5248503A (en) Method for cooling furnace wall
ES461386A1 (en) Process for upgrading iron ore pellets
JPS5364603A (en) Supporting apparatus for furnace body of converter equipped with coolingdevice
JPS51147407A (en) A method for operation of blast furnaces by leakage detection in the b last furnace
JPS5372003A (en) Coke oven door
JPS51151611A (en) Water cooled skid for continuous heating furnaces
JPS5221001A (en) Method for preventing deposition of carbon to ceiling brick of coking chamber of coke oven
JPS5238503A (en) Installation for dry-quenching of coke
JPS51151212A (en) Rh degassing apparatus blowing oxidizing gas directly into circulating molten steel at reduced pressure
JPS5281637A (en) Furnace cover for arc furnaces
JPS5281009A (en) Heating furnace with holding equipment
JPS529608A (en) Groove type induction furnace
JPS51135814A (en) Method for operating blast furnace
JPS536939A (en) Moten metal leak detecting system
JPS52117211A (en) Hot stove