JPS6425962A - Hearth roller - Google Patents

Hearth roller

Info

Publication number
JPS6425962A
JPS6425962A JP18039787A JP18039787A JPS6425962A JP S6425962 A JPS6425962 A JP S6425962A JP 18039787 A JP18039787 A JP 18039787A JP 18039787 A JP18039787 A JP 18039787A JP S6425962 A JPS6425962 A JP S6425962A
Authority
JP
Japan
Prior art keywords
roller
powder
resistance
cobalt
total
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
JP18039787A
Other languages
Japanese (ja)
Inventor
Takeshi Kusumi
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.)
Tokuden Co Ltd Hyogo
Original Assignee
Tokushu Denkyoku 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 Tokushu Denkyoku Co Ltd filed Critical Tokushu Denkyoku Co Ltd
Priority to JP18039787A priority Critical patent/JPS6425962A/en
Publication of JPS6425962A publication Critical patent/JPS6425962A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/56Continuous furnaces for strip or wire
    • C21D9/562Details
    • C21D9/563Rolls; Drums; Roll arrangements

Abstract

PURPOSE:To manufacture a hearth roller excellent in heat resistance and seizure resistance, by applying the hard facing by welding of a powder composed principally of chromium carbide and cobalt to the barrel surface of a roller body by a powder plasma welding method. CONSTITUTION:By using a powder having a composition which consists of 40-70% Cr, 20-50% Co, 2-7% C, 1-20% Mo+W, and <=0.5% other inevitably mixing impurities and to which 0.05-15%, in total, of Ni and iron and 0.5-5%, in total, of Si and Mn are added, if necessary, build-up welding is applied to the barrel surface of a roller body by a powder plasma welding method. Further, a material excellent in various characteristics, such as strength under a high- temp. environment, is used as the base material for roller, and the thickness of a composite hard faced layer composed principally of chromium carbide and cobalt is regulated to about 3-5mm. By this method, the hearth roller free from the seizure phenomenon of scales in a reducing furnace and excellent in resistance to heat and wear can be obtained.
JP18039787A 1987-07-20 1987-07-20 Hearth roller Pending JPS6425962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18039787A JPS6425962A (en) 1987-07-20 1987-07-20 Hearth roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18039787A JPS6425962A (en) 1987-07-20 1987-07-20 Hearth roller

Publications (1)

Publication Number Publication Date
JPS6425962A true JPS6425962A (en) 1989-01-27

Family

ID=16082521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18039787A Pending JPS6425962A (en) 1987-07-20 1987-07-20 Hearth roller

Country Status (1)

Country Link
JP (1) JPS6425962A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010248595A (en) * 2009-04-20 2010-11-04 Ihi Corp Wear-resistant material
JP2017101273A (en) * 2015-11-30 2017-06-08 Jfeスチール株式会社 Toll shaft member in melting metal plating bath and its production method, and production method of melting metal plating steel plate
WO2019193895A1 (en) * 2018-04-02 2019-10-10 株式会社ノリタケカンパニーリミテド Conveyance roller for heating furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010248595A (en) * 2009-04-20 2010-11-04 Ihi Corp Wear-resistant material
JP2017101273A (en) * 2015-11-30 2017-06-08 Jfeスチール株式会社 Toll shaft member in melting metal plating bath and its production method, and production method of melting metal plating steel plate
WO2019193895A1 (en) * 2018-04-02 2019-10-10 株式会社ノリタケカンパニーリミテド Conveyance roller for heating furnace
JPWO2019193895A1 (en) * 2018-04-02 2021-04-08 株式会社ノリタケカンパニーリミテド Transfer roller for heating furnace

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