Roll for hot forming steel rod

Details Roll for hot forming steel rod Roll for hot forming steel rod

1986-08-19

1987-10-13

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29124, B21B 4500

Patent

active

046988840

ABSTRACT:
Disclosed herein is a carbide roll having an improved composition for hot forming steel rod in multi-stand rolling mills. The improved composition comprises the addition of nickel as a binder material to a normal tungsten carbide-cobalt roll composition, preferably, so that the composition by volume is approximately: tungsten carbide--70 percent; nickel--10 percent; and cobalt--20 percent. A dual composition is disclosed, wherein the above composition forms the inner layer of the roll and an outer layer may be composed of, by volume, tungsten carbide--70 percent and cobalt--30 percent.

REFERENCES:
patent: 2313227 (1943-03-01), DeBats
patent: 3609849 (1971-10-01), Krol
patent: 3993446 (1976-11-01), Okawa
patent: 4137106 (1979-01-01), Doi et al.
Chemical Abstracts, vol. 84, No. 20, May 17, 1976, p. 224, Abstract No. 139598d.
Chemical Abstracts, vol. 85, No. 18, Nov. 1, 1976, p. 364, Abstract No. 129175v.
Chemical Abstracts, vol. 84, No. 12, Mar. 22, 1976, p. 289, Abstract No. 78360w.

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