JPS57100809A - Composite sleeve roll for rolling h-steel and its production - Google Patents

Composite sleeve roll for rolling h-steel and its production

Info

Publication number
JPS57100809A
JPS57100809A JP17829180A JP17829180A JPS57100809A JP S57100809 A JPS57100809 A JP S57100809A JP 17829180 A JP17829180 A JP 17829180A JP 17829180 A JP17829180 A JP 17829180A JP S57100809 A JPS57100809 A JP S57100809A
Authority
JP
Japan
Prior art keywords
steel
balance
outside shell
composite sleeve
intermediate 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
JP17829180A
Other languages
Japanese (ja)
Other versions
JPS6021003B2 (en
Inventor
Takashi Hashimoto
Akitoshi Okabayashi
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 JP55178291A priority Critical patent/JPS6021003B2/en
Publication of JPS57100809A publication Critical patent/JPS57100809A/en
Publication of JPS6021003B2 publication Critical patent/JPS6021003B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To obtain a composite sleeve roll free from generation of shrinkage cavity defects by melt-sticking a high chromium material, an intermediate layer and a spheroidal graphite steel material respectively having specific compositions as an outside shell, an intermediate layer and an inside shell into one body and specifying the hardness of the outside shell. CONSTITUTION:The high Cr material consisting of 2.0-3.2 C, 0.5-1.5 Si, 0.5- 1.5 Mn, <=0.1 P, <=0.1 S, 0.8-2.5 Ni, 1.0-2.5 Cr, 0.5-2.0 Mo by weight % and the balance Fe is used as the outside shell. The steel consisting of 1.3-2.5 C, 0.2-2.0 Si, 0.3-2.0 Mn,<=0.1 P, <=0.1 S, 0.2-2.5 Ni, 0.5-9.0 Cr, <=1.5 Mo, and the balance Fe is used as the intermediate layer. The spheroidal graphite steel material consisting of 1.0-2.0 C, 0.6-3.0 Si, 0.2-1.0 Mn, <=0.1 F, <=0.1 Si, 0.1- 1.0 Ni, 0.3-2.0 Cr, 0.1-1.0 Mo, and the balance Fe is used as the inside shell, and these are melt-stuck to one body, so that the hardness of the hard outside shell has 65-80Hs.
JP55178291A 1980-12-15 1980-12-15 Composite sleeve roll for rolling H-type steel and its manufacturing method Expired JPS6021003B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178291A JPS6021003B2 (en) 1980-12-15 1980-12-15 Composite sleeve roll for rolling H-type steel and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178291A JPS6021003B2 (en) 1980-12-15 1980-12-15 Composite sleeve roll for rolling H-type steel and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS57100809A true JPS57100809A (en) 1982-06-23
JPS6021003B2 JPS6021003B2 (en) 1985-05-24

Family

ID=16045894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178291A Expired JPS6021003B2 (en) 1980-12-15 1980-12-15 Composite sleeve roll for rolling H-type steel and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS6021003B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923845A (en) * 1982-07-31 1984-02-07 Kubota Ltd Sleeve for roll for rolling h-beam
JPS60128249A (en) * 1983-12-15 1985-07-09 Kubota Ltd Tough and hard sleeve roll for rolling h-beam
JPS6293015A (en) * 1985-10-18 1987-04-28 Kubota Ltd Compound roll for rolling and its production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493820A (en) * 1972-05-01 1974-01-14
JPS49123158A (en) * 1973-03-30 1974-11-25
JPS5256012A (en) * 1975-10-08 1977-05-09 Hitachi Metals Ltd High chromium roll

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493820A (en) * 1972-05-01 1974-01-14
JPS49123158A (en) * 1973-03-30 1974-11-25
JPS5256012A (en) * 1975-10-08 1977-05-09 Hitachi Metals Ltd High chromium roll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923845A (en) * 1982-07-31 1984-02-07 Kubota Ltd Sleeve for roll for rolling h-beam
JPS60128249A (en) * 1983-12-15 1985-07-09 Kubota Ltd Tough and hard sleeve roll for rolling h-beam
JPH0514023B2 (en) * 1983-12-15 1993-02-24 Kubota Kk
JPS6293015A (en) * 1985-10-18 1987-04-28 Kubota Ltd Compound roll for rolling and its production

Also Published As

Publication number Publication date
JPS6021003B2 (en) 1985-05-24

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