Composite sleeve for use in rolling rolls for H-section steel an

Details Composite sleeve for use in rolling rolls for H-section steel an Composite sleeve for use in rolling rolls for H-section steel an

1982-11-29

1985-10-15

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

72225, 29130, 29125, B21B 2702

Patent

active

045465274

ABSTRACT:
A composite sleeve for use in a hot-rolling roll for H-section steel and channel steel comprises a working layer adapted to contact the material to be rolled and composed of two layers, i.e., a first outer layer made of one of adamite with graphite, spheroidal graphite cast iron and adamite having high resistance to sticking, and a second outer layer made of adamite or high chromium iron having high resistance to wear; and an inner layer adapted to be out of contact with the material and made of spheroidal graphite cast steel or spheroidal graphite cast iron having high toughness. The first outer layer covers the second outer layer, and the second outer layer covers the inner layer, the three layers of the first outer layer, the second outer layer and the inner layer being joined together by melting.

REFERENCES:
patent: 1996500 (1935-04-01), Adams
patent: 2030891 (1936-02-01), Payne
patent: 3855015 (1974-12-01), Nemoto et al.
patent: 3968551 (1976-07-01), Miyashita
patent: 4064608 (1977-12-01), Jaeger
patent: 4165407 (1979-08-01), Endoh et al.
patent: 4165628 (1979-08-01), Okada

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