Method for manufacture of a roll ring comprising cemented carbid

Details Method for manufacture of a roll ring comprising cemented carbid Method for manufacture of a roll ring comprising cemented carbid

1993-06-04

1994-11-01

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Roller making

298953, B21B 3108

Patent

active

053597729

ABSTRACT:
The present invention relates to a roll, comprising cemented carbide and cast iron, and a method for manufacture of the same. The roll may be used for hot or cold rolling. The barrel comprises one or several cemented carbide rings, east by centrifugal casting method into a roll body of an iron alloy. The casting alloy comprises an essentially graphitic east iron, which after the casting contains residual austenitc. This residual austenitc is transformed at subsequent heat treatment step (or steps) totally or partly to mainly bainite under volume increase, with the aim of reducing or totally eliminating the differential shrinkage between the east iron and the cemented carbide as a result from cooling after the casting. The central part of the roll body may alternatively consist of another alloy.

REFERENCES:
patent: 3609849 (1971-10-01), Krol
patent: 3659323 (1972-05-01), Hachisu et al.
patent: 3787943 (1974-01-01), Loqvist
patent: 3807012 (1974-04-01), Loqvist
patent: 3860457 (1975-01-01), Vourinen et al.
patent: 3997370 (1976-12-01), Horvath, Jr. et al.
patent: 4099311 (1978-07-01), Kark
patent: 4119459 (1978-10-01), Ekemar et al.
patent: 5044056 (1991-09-01), Sundstedt et al.
patent: 5104458 (1992-04-01), Sundstedt et al.
J. F. Janowak et al., "Approaching Austempered Ductile Iron Properties by Controlled Cooling in the Foundry", J. Heat Treating, American Society for Metals, vol. 4, No. 1, Jun. 1985, pp. 25-31.
Abstract for Swedish Patent Application 86-03987-2, filed Mar. 24, 1988.
A. E. Krivosheev, "Cast Rolls (Theoretical and Technological Fundamentals of Production)", Moscow, 1957, pp. 272-274.
S. B. Yudin et al., "Centrifugal Casting", 2nd Revised and Supplemental Edition, Mashinostroenie Publishers, Moscow, 1972, p. 240.

Affiliated with

Also associated with

Rating

Method for manufacture of a roll ring comprising cemented carbid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacture of a roll ring comprising cemented carbid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacture of a roll ring comprising cemented carbid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1794294