JPS5641063A - Production of high chromium roll of tough core material - Google Patents

Production of high chromium roll of tough core material

Info

Publication number
JPS5641063A
JPS5641063A JP11713079A JP11713079A JPS5641063A JP S5641063 A JPS5641063 A JP S5641063A JP 11713079 A JP11713079 A JP 11713079A JP 11713079 A JP11713079 A JP 11713079A JP S5641063 A JPS5641063 A JP S5641063A
Authority
JP
Japan
Prior art keywords
amount
core material
molten metal
high chromium
outer layer
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
JP11713079A
Other languages
Japanese (ja)
Other versions
JPS5920417B2 (en
Inventor
Shiro Nakamura
Takashi Hashimoto
Yoshihiro Nakagawa
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 JP11713079A priority Critical patent/JPS5920417B2/en
Publication of JPS5641063A publication Critical patent/JPS5641063A/en
Publication of JPS5920417B2 publication Critical patent/JPS5920417B2/en
Expired 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)

Abstract

PURPOSE:To accelerate graphitization as against the increase in Cr amount and improve the strength and toughness of core material by adding an inoculant of a proper amount with respect to the Si amount of the composition to the core material molten metal to be poured to the outer layer centrifugally cast by a high chromium material of the specific Cr amount. CONSTITUTION:A top pouring vertical mold 9 is constituted by a centrifugal casting mold 4 havng therein an outer layer 1 formed by a high chromium material containing 13-27wt% Cr and upper, lower dies 7, 6. Core material molten metal of ductile cast iron or high class cast iron is poured from a ladle 12 or the like through the pouring basin 8 placed on the upper die 7. At this time, an inoculant 14 of Fe-Si systems is continuously and uniformly added at 0.1-1.0wt% based on the Si amount in the molten metal compositin to the core material molten metal from the hopper 13 above the pouring basin 8. The reasin for limiting the Cr amount in the outer layer 1 is: The one of this range has both abrasion resistance and surface roughening resistance.
JP11713079A 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material Expired JPS5920417B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11713079A JPS5920417B2 (en) 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11713079A JPS5920417B2 (en) 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material

Publications (2)

Publication Number Publication Date
JPS5641063A true JPS5641063A (en) 1981-04-17
JPS5920417B2 JPS5920417B2 (en) 1984-05-12

Family

ID=14704176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11713079A Expired JPS5920417B2 (en) 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material

Country Status (1)

Country Link
JP (1) JPS5920417B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548653A (en) * 1980-10-31 1985-10-22 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Cast cold rolling roll and its method of manufacture
CN102380598A (en) * 2011-11-02 2012-03-21 张立庆 Manufacturing process of piston of hydraulic cylinder
KR101193719B1 (en) 2009-08-27 2012-10-26 현대제철 주식회사 Manufacturing Method of casting roll

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548653A (en) * 1980-10-31 1985-10-22 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Cast cold rolling roll and its method of manufacture
KR101193719B1 (en) 2009-08-27 2012-10-26 현대제철 주식회사 Manufacturing Method of casting roll
CN102380598A (en) * 2011-11-02 2012-03-21 张立庆 Manufacturing process of piston of hydraulic cylinder

Also Published As

Publication number Publication date
JPS5920417B2 (en) 1984-05-12

Similar Documents

Publication Publication Date Title
DE3062505D1 (en) Method and apparatus for the continuous casting of several strands
JPS5641063A (en) Production of high chromium roll of tough core material
FR2444245A1 (en) Metallurgical furnace wall unit prodn. process - shapes heat-resistant material into mould wall for cast metal cooling block
US4039326A (en) Antiscorific powder for the casting of steels into ingot molds
JPS54103729A (en) Highly tough ductile cast iron core roll for compound roll
JPS57198241A (en) Pig iron as starting material for manufacturing cv cast iron casting and manufacture of cv cast iron casting using it
JPS55145158A (en) Free cutting bearing steel and its manufacture
JPS5641061A (en) Production of high chromium roll of tough core material
JPS57101646A (en) Composite roll for rolling plate
JPS5735661A (en) Composite sleeve roll for rolling wide flange beam and its manufacture
JPS5641064A (en) Production of high chromium roll having cavity on core part
JPS5531167A (en) Manufacture of wear resistant cast iron
JPS5585655A (en) Steel for plastic molding metal mold
JPS579852A (en) Cast iron product with partially different graphite form and its manufacture
JPS5641062A (en) Production of high chromium roll having cavity in core
JPS566758A (en) Steel for mold and its production
JPS57126952A (en) Production of killed steel ingot for hot rolling
JPS5662655A (en) Production of bottomed hollow steel ingot
JPS57192243A (en) Clad steel pipe excellent in abrasion resistance and weldability
JPS57192242A (en) Clad steel pipe excellent in abrasion resistance and weldability
JPS56163060A (en) Casting method for spheroidal graphite cast iron
Bhat et al. Development of Continuous Casting Mold Powders
JPS57177850A (en) Hardening material for casting and hardening
JPS555161A (en) Production of sleeve for variable crown roll
JPS5620119A (en) Preventing method for formation of surface crack in continuously cast billet