Method of hot rolling for iron and iron alloy rods

Details Method of hot rolling for iron and iron alloy rods Method of hot rolling for iron and iron alloy rods

1986-04-09

1988-07-12

Spruill, Robert L.

Metal deforming

By use of roller or roller-like tool-element

29132, 72366, B21B 116, B21B 2702

Patent

active

047561807

ABSTRACT:
A novel method of hot rolling iron and iron alloy rods, using a hot rolling tool comprising .beta.-Si.sub.3 N.sub.4 and a sintering aid selected from the group consisting of Al.sub.2 O.sub.3, AlN, MgO, Y.sub.2 O.sub.3 and ZrO.sub.2, and having a sintered density of 90% or more, Rockwell hardness of 88 or more and a mean particle size of 2.mu. or less.

REFERENCES:
The Making, Shaping and Treating of Steel, seventh edition, United States Steel, 1957, pp. 678-679.

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