Trimetal pulverizer roll and a method of manufacture thereof

Details Trimetal pulverizer roll and a method of manufacture thereof Trimetal pulverizer roll and a method of manufacture thereof

1984-06-27

1986-09-09

Ramsey, Kenneth J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

291484D, 29132, 228119, B02C 430

Patent

active

046100733

ABSTRACT:
A pulverizer, i.e., grinding, roll (18) of the type that is particularly suited for embodiment in a bowl mill (10) wherein the roll (18) coacts with another surface (14) within the mill (10) to effect the pulverization therewithin of a material such as coal. The subject roll (18) embodies a trimetal form of construction. More specifically, the core material, i.e., the first or inner layer (50), of the trimetal roll (18) consists of a relatively soft material that is noted for its good machinability. The next, i.e., second or intermediate, layer (52) of the trimetal roll (18) comprises a material that has medium wear-resistant qualities. The last, i.e., third or outer, layer (54) of the trimetal roll (18) comprises a material having highly abrasive resistant qualities. In addition there is provided a method of manufacturing such a trimetal roll (18).

REFERENCES:
patent: 3014266 (1961-12-01), Samuels et al.
patent: 3659323 (1972-05-01), Hachisu et al.
patent: 3855015 (1974-12-01), Nemoto et al.
patent: 4000010 (1976-12-01), Sekimoto et al.
patent: 4165407 (1979-08-01), Endoh et al.
patent: 4234132 (1980-11-01), Maliszewski
patent: 4433032 (1984-02-01), Nakamura et al.

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