JPS5613434A - Warm keeping method for high temperature steel material - Google Patents

Warm keeping method for high temperature steel material

Info

Publication number
JPS5613434A
JPS5613434A JP8691579A JP8691579A JPS5613434A JP S5613434 A JPS5613434 A JP S5613434A JP 8691579 A JP8691579 A JP 8691579A JP 8691579 A JP8691579 A JP 8691579A JP S5613434 A JPS5613434 A JP S5613434A
Authority
JP
Japan
Prior art keywords
steel material
waste slag
aluminum
organic
high temperature
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
JP8691579A
Other languages
Japanese (ja)
Inventor
Hiroshi Takechi
Katsura Tsuchiya
Masaya Tsutsumi
Taketoshi Taira
Nobuzo Tamura
Seihachiro Takagi
Noboru Yokomi
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
Nippon Steel Metal Products Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Metal Products 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 Nippon Steel Corp, Nippon Steel Metal Products Co Ltd filed Critical Nippon Steel Corp
Priority to JP8691579A priority Critical patent/JPS5613434A/en
Publication of JPS5613434A publication Critical patent/JPS5613434A/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
    • 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

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)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To prevent the heat radiation of high temperature steel material, by applying the mixture of specified ratio of aluminum waste slag or aluminum waste slag and organic or inorganic carbon on the surface of the steel material having a fixed ratio. CONSTITUTION:Film is formed by applying the aluminum waste slag containing 1-10% salt and cryolite (AlF3.3NaF) on the surface of steel material heated at 300-1,400 deg.C and heat radiation is prevented. Or, mixture of said waste slag and organic or inorganic carbon at 50:1-50:20 ratio, is applied. Constituent of the aluminum waste slag is, for example, 55.0-65.0 aluminum oxide, 8-20 metallic aluminum having a warm keeping effect and also, the component forming a uniform film, is 1-4% salt, 1-5% cryolite. Organic or inorganic carbon is burnt after application and heat transmission is lowered by generated carbonic acid gas. Binding agent, such as sodium tetrapolyphosphate, etc., is allowed to use for application, but <=20% whole solid matter is used.
JP8691579A 1979-07-11 1979-07-11 Warm keeping method for high temperature steel material Pending JPS5613434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8691579A JPS5613434A (en) 1979-07-11 1979-07-11 Warm keeping method for high temperature steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8691579A JPS5613434A (en) 1979-07-11 1979-07-11 Warm keeping method for high temperature steel material

Publications (1)

Publication Number Publication Date
JPS5613434A true JPS5613434A (en) 1981-02-09

Family

ID=13900137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8691579A Pending JPS5613434A (en) 1979-07-11 1979-07-11 Warm keeping method for high temperature steel material

Country Status (1)

Country Link
JP (1) JPS5613434A (en)

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