Ring for spinning machinery

Details Ring for spinning machinery Ring for spinning machinery

1988-10-17

1989-12-12

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

D01H 760

Patent

active

048859052

ABSTRACT:
A ring for spinning machinery is made of alloy steel containing Cr 0.9-26% as basic material. The basic material is cut in the desired ring shape, is subjected to gas carburizing, quenching, subzero treatment and tempering and is finally subjected to a grinding. This ring has a surface layer in which carbide occupies 30-90% in the rate of area, with a surface roughness which has an average roughness of less than Ra 0.25 .mu.m at a center line.

REFERENCES:
patent: 1595858 (1976-08-01), Crompton
patent: 1745835 (1930-02-01), Merrill
patent: 2194930 (1940-03-01), Feen
patent: 2798357 (1957-07-01), Stahli
patent: 3381464 (1968-05-01), Furst
patent: 3387447 (1968-06-01), Trammell et al.
patent: 3421307 (1969-01-01), Lundsford
patent: 4308715 (1982-01-01), Staehli
patent: 4677817 (1987-07-01), Kanai
patent: 4698958 (1987-10-01), Nakano et al.

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