JPS5496407A - Heating method for steel material - Google Patents

Heating method for steel material

Info

Publication number
JPS5496407A
JPS5496407A JP351378A JP351378A JPS5496407A JP S5496407 A JPS5496407 A JP S5496407A JP 351378 A JP351378 A JP 351378A JP 351378 A JP351378 A JP 351378A JP S5496407 A JPS5496407 A JP S5496407A
Authority
JP
Japan
Prior art keywords
antioxidant
applying
parts
refractory
decarbonization
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
JP351378A
Other languages
Japanese (ja)
Other versions
JPS5643293B2 (en
Inventor
Minoru Kitayama
Toshio Odajima
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 JP351378A priority Critical patent/JPS5496407A/en
Publication of JPS5496407A publication Critical patent/JPS5496407A/en
Publication of JPS5643293B2 publication Critical patent/JPS5643293B2/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces

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)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To prevent the oxidation or decarbonization of the surface in heating furnace, by applying refractory material layer on the surface of steel material and moreover, applying antioxidant on it. CONSTITUTION:Lowering of yield and deterioration of quality of rolled product by the surface flaw originated by oxidation, are prevented by applying refractory material at first and next, applying antioxidant at the time of heating steel materials, such as slab, bellet, bloom etc., in heating furnace. Moreover, lowering of material strength by decarbonization of the surface is prevented. On this occasion, 100-2000 wt. parts of SiO2 and 100-2000 wt. parts of refractory materials, such as Al2O3, Cr2O3, NiO, GuO, TiO2, MnO2, CoO, ZrO2, kaolin etc., against 100 wt. parts of MgO and binder, are used for the refractory materials and the refractory materials are used at the rate of 50-2000g/m<2>. Chamotte -SiO2-Al- synthetic mica- colloidal silica-water soluble resin antioxidant, are used for the antioxidant.
JP351378A 1978-01-17 1978-01-17 Heating method for steel material Granted JPS5496407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP351378A JPS5496407A (en) 1978-01-17 1978-01-17 Heating method for steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP351378A JPS5496407A (en) 1978-01-17 1978-01-17 Heating method for steel material

Publications (2)

Publication Number Publication Date
JPS5496407A true JPS5496407A (en) 1979-07-30
JPS5643293B2 JPS5643293B2 (en) 1981-10-12

Family

ID=11559433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP351378A Granted JPS5496407A (en) 1978-01-17 1978-01-17 Heating method for steel material

Country Status (1)

Country Link
JP (1) JPS5496407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02277726A (en) * 1989-04-20 1990-11-14 Kawasaki Steel Corp Method and equipment for continuously annealing stainless steel strip
CN102453794A (en) * 2010-11-02 2012-05-16 中国科学院过程工程研究所 A high-temperature anti-decarburization coating material for spring steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02277726A (en) * 1989-04-20 1990-11-14 Kawasaki Steel Corp Method and equipment for continuously annealing stainless steel strip
CN102453794A (en) * 2010-11-02 2012-05-16 中国科学院过程工程研究所 A high-temperature anti-decarburization coating material for spring steel

Also Published As

Publication number Publication date
JPS5643293B2 (en) 1981-10-12

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