JPS55158873A - Production of high alloy cast iron roll - Google Patents

Production of high alloy cast iron roll

Info

Publication number
JPS55158873A
JPS55158873A JP6703979A JP6703979A JPS55158873A JP S55158873 A JPS55158873 A JP S55158873A JP 6703979 A JP6703979 A JP 6703979A JP 6703979 A JP6703979 A JP 6703979A JP S55158873 A JPS55158873 A JP S55158873A
Authority
JP
Japan
Prior art keywords
cast iron
production
inner shell
roll
austenitizing
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
JP6703979A
Other languages
Japanese (ja)
Other versions
JPS5715648B2 (en
Inventor
Tamotsu Hashizume
Yoshihiro Nakagawa
Takashi Hashimoto
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP6703979A priority Critical patent/JPS55158873A/en
Publication of JPS55158873A publication Critical patent/JPS55158873A/en
Publication of JPS5715648B2 publication Critical patent/JPS5715648B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To excel in wear resistance and toughness, regardless of the roll size, by austenitizing the outer shell surface layer at a specified temperature and the inner shell at a lowest possible temperature, after as-casting. CONSTITUTION:In production of a compound roll having the outer shell made of high all by cast iron containing 3.0-5.0% Ni and 0.2-0.8% Mo, and the inner shell made of tough cast iron, a cast compound roll 3 is preliminarily borne on rotating rollers 4, 4, and the flames of a burner 6 installed in the interior of ring-shaped heating elements 5, 5' are injected to the surface of the drum part to heat it. The outer surface layer should be 850 deg.C or more, and the inner shell about 600 deg.C. Thus, after austenitizing the base, the heating elements 5, 5' are continuously moved, and cooling water is injected from a cooling body 7 to perform quenching and isothermal heat treatment at 200-450 deg.C continuously.
JP6703979A 1979-05-28 1979-05-28 Production of high alloy cast iron roll Granted JPS55158873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6703979A JPS55158873A (en) 1979-05-28 1979-05-28 Production of high alloy cast iron roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6703979A JPS55158873A (en) 1979-05-28 1979-05-28 Production of high alloy cast iron roll

Publications (2)

Publication Number Publication Date
JPS55158873A true JPS55158873A (en) 1980-12-10
JPS5715648B2 JPS5715648B2 (en) 1982-03-31

Family

ID=13333310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6703979A Granted JPS55158873A (en) 1979-05-28 1979-05-28 Production of high alloy cast iron roll

Country Status (1)

Country Link
JP (1) JPS55158873A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5886914A (en) * 1981-11-18 1983-05-24 Kubota Ltd Composite roll
KR100781188B1 (en) 2006-06-23 2007-11-30 삼영기계(주) Heating processing method for surface of piston ring and a piston ring

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127824A (en) * 1974-03-29 1975-10-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127824A (en) * 1974-03-29 1975-10-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5886914A (en) * 1981-11-18 1983-05-24 Kubota Ltd Composite roll
JPH0252565B2 (en) * 1981-11-18 1990-11-14 Kubota Tetsuko Kk
KR100781188B1 (en) 2006-06-23 2007-11-30 삼영기계(주) Heating processing method for surface of piston ring and a piston ring

Also Published As

Publication number Publication date
JPS5715648B2 (en) 1982-03-31

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