JPS5641061A - Production of high chromium roll of tough core material - Google Patents

Production of high chromium roll of tough core material

Info

Publication number
JPS5641061A
JPS5641061A JP11712879A JP11712879A JPS5641061A JP S5641061 A JPS5641061 A JP S5641061A JP 11712879 A JP11712879 A JP 11712879A JP 11712879 A JP11712879 A JP 11712879A JP S5641061 A JPS5641061 A JP S5641061A
Authority
JP
Japan
Prior art keywords
molten metal
core material
contents
cast iron
pouring
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
JP11712879A
Other languages
Japanese (ja)
Other versions
JPS5920415B2 (en
Inventor
Shiro Nakamura
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 JP54117128A priority Critical patent/JPS5920415B2/en
Publication of JPS5641061A publication Critical patent/JPS5641061A/en
Publication of JPS5920415B2 publication Critical patent/JPS5920415B2/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 substitute the previously poured molten metal with the post pouring of less Cr diffusion and improve the toughness of a roll by pouring core material molten metal from the lower part of the outer layer centrifugally cast with the specific high chromium material and allowing the same to overflow from the upper part. CONSTITUTION:A vertical mold 12 is constituted by a high chromium outer layer 1 containing 13-27wt% Cr provided within a centrifugally casting mold 4 and upper, lower dies 7, 6. Next, core material molten metal of ductile cast iron or high- class cast iron is continuously poured into the mold 12 via a pouring basin 13, a pouring pipe 14 and a cross gate 10 and the molten metal is overflowed from a discharge port 11. This causes the previously poured molten metal of increased Cr contents by washing the inside surface of the outside layer 1 to overflow successively from the discharge port 11, so that the post poured core material molten metal of less Cr contents of <=0.9% Cr contents is filled in the mold 12. The reason for limiting the Cr contents of the core material molten metal of the ductile cast iron or high- class cast iron is: If the amount becomes more than the limited amount, toughness will decrease.
JP54117128A 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material Expired JPS5920415B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54117128A JPS5920415B2 (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
JP54117128A JPS5920415B2 (en) 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material

Publications (2)

Publication Number Publication Date
JPS5641061A true JPS5641061A (en) 1981-04-17
JPS5920415B2 JPS5920415B2 (en) 1984-05-12

Family

ID=14704126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54117128A Expired JPS5920415B2 (en) 1979-09-11 1979-09-11 Manufacturing method of high chromium roll with strong core material

Country Status (1)

Country Link
JP (1) JPS5920415B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50142292A (en) * 1974-05-04 1975-11-15
US8328703B2 (en) 2009-05-29 2012-12-11 Acos Villares S.A. Rolling mill cast roll

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104525889B (en) * 2014-12-31 2016-09-07 中钢集团邢台机械轧辊有限公司 A kind of manufacture method of high-speed steel roll

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493820A (en) * 1972-05-01 1974-01-14
JPS5037019A (en) * 1973-08-08 1975-04-07
JPS5343623A (en) * 1976-10-01 1978-04-19 Yodogawa Steel Works Method of manufacturing centrifugal casting heavy compound roll and device for arranging bottom pouring pipe for the method
JPS5376119A (en) * 1976-12-17 1978-07-06 Hitachi Metals Ltd Highhhardness highhchrome roll and method of making same
JPS54103727A (en) * 1978-02-01 1979-08-15 Kubota Ltd Ductile cast roll excellent in toughness

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493820A (en) * 1972-05-01 1974-01-14
JPS5037019A (en) * 1973-08-08 1975-04-07
JPS5343623A (en) * 1976-10-01 1978-04-19 Yodogawa Steel Works Method of manufacturing centrifugal casting heavy compound roll and device for arranging bottom pouring pipe for the method
JPS5376119A (en) * 1976-12-17 1978-07-06 Hitachi Metals Ltd Highhhardness highhchrome roll and method of making same
JPS54103727A (en) * 1978-02-01 1979-08-15 Kubota Ltd Ductile cast roll excellent in toughness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50142292A (en) * 1974-05-04 1975-11-15
US8328703B2 (en) 2009-05-29 2012-12-11 Acos Villares S.A. Rolling mill cast roll

Also Published As

Publication number Publication date
JPS5920415B2 (en) 1984-05-12

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