JPS572862A - Composite roll and its manufacture - Google Patents

Composite roll and its manufacture

Info

Publication number
JPS572862A
JPS572862A JP7435180A JP7435180A JPS572862A JP S572862 A JPS572862 A JP S572862A JP 7435180 A JP7435180 A JP 7435180A JP 7435180 A JP7435180 A JP 7435180A JP S572862 A JPS572862 A JP S572862A
Authority
JP
Japan
Prior art keywords
roll
core material
resistant metal
wear resistant
composite roll
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
JP7435180A
Other languages
Japanese (ja)
Other versions
JPS6358215B2 (en
Inventor
Takashi Kikuhara
Osamu Shimotamura
Toshio Yaegashi
Yasuo Kondo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7435180A priority Critical patent/JPS572862A/en
Publication of JPS572862A publication Critical patent/JPS572862A/en
Publication of JPS6358215B2 publication Critical patent/JPS6358215B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE: To obtain a composite roll with high wear resistance by melt-bonding a metal having higher wear resistance than a core material of a roll having a prescribed shape to the surface of the core material and forming a structure in which eutectic carbide in the wear resistant metal is almost uniformly dispersed in the matrix grains.
CONSTITUTION: A steel contg. 0.3W1wt% C is used as a core material of a roll, and a steel contg., by wt., 1.5W3% C, 7W20% Cr, ≤2% Ni, ≤2% Mo and ≤2% V as a wear resistant metal. The wear resistant metal is melt-bonded to the core material by build-up welding applying electroslag welding. The resulting roll is hot- forged to form a martensite structure in which eutectic carbide in the wear resistant metal is almost uniformly dispersed in the matrix grains. Hardening and tempering are then carried out to obtain the desired composite roll.
COPYRIGHT: (C)1982,JPO&Japio
JP7435180A 1980-06-04 1980-06-04 Composite roll and its manufacture Granted JPS572862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7435180A JPS572862A (en) 1980-06-04 1980-06-04 Composite roll and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7435180A JPS572862A (en) 1980-06-04 1980-06-04 Composite roll and its manufacture

Publications (2)

Publication Number Publication Date
JPS572862A true JPS572862A (en) 1982-01-08
JPS6358215B2 JPS6358215B2 (en) 1988-11-15

Family

ID=13544611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7435180A Granted JPS572862A (en) 1980-06-04 1980-06-04 Composite roll and its manufacture

Country Status (1)

Country Link
JP (1) JPS572862A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167007A (en) * 1982-03-26 1983-10-03 Hitachi Ltd High strength, high abrasion resistance, and high toughness roll, and its manufacture
JPS61238407A (en) * 1985-04-15 1986-10-23 Hitachi Ltd Compound roll and its production
JPH03122251A (en) * 1989-06-26 1991-05-24 Hitachi Ltd Composite roll for rolling metal and its production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212612A (en) * 1975-07-21 1977-01-31 Nippon Steel Corp Wear resistant tool steel
JPS5380350A (en) * 1976-12-27 1978-07-15 Hitachi Metals Ltd Preparation of roll for hot rolling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212612A (en) * 1975-07-21 1977-01-31 Nippon Steel Corp Wear resistant tool steel
JPS5380350A (en) * 1976-12-27 1978-07-15 Hitachi Metals Ltd Preparation of roll for hot rolling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167007A (en) * 1982-03-26 1983-10-03 Hitachi Ltd High strength, high abrasion resistance, and high toughness roll, and its manufacture
JPH0377007B2 (en) * 1982-03-26 1991-12-09 Hitachi Ltd
JPS61238407A (en) * 1985-04-15 1986-10-23 Hitachi Ltd Compound roll and its production
JPH03122251A (en) * 1989-06-26 1991-05-24 Hitachi Ltd Composite roll for rolling metal and its production

Also Published As

Publication number Publication date
JPS6358215B2 (en) 1988-11-15

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