Spinning rotor in an open-end spinning frame

Details Spinning rotor in an open-end spinning frame Spinning rotor in an open-end spinning frame

1983-03-17

1985-03-05

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57416, 219121L, D01H 7882, B23K 2700

Patent

active

045022739

ABSTRACT:
An improved spinning rotor for an open-end spinning frame is disclosed herein, according to which the rotor is made of steel, and selected portions of its interior peripheral surfaces, including the fiber-collecting groove thereof, which is formed along the maximum-diameter region within the spinning chamber, are heat-treated by a focused laser beam or focused electron beam to harden the same. Due to the nature of laser beams, only those areas which require surface hardening are heat-treated without heating the entire rotor body, so that no strain or distortion is developed in the rotor during the heat treatment process. As a result, the rotor is heat-treated to provide excellent wear-resisting properties and exceptional stability in operation at an extremely high speed for an extended period of service.

REFERENCES:
patent: 4167846 (1979-09-01), Shaw et al.
patent: 4193253 (1980-03-01), Herber et al.
patent: 4304978 (1981-12-01), Saunders
patent: 4315130 (1982-02-01), Iwagaki et al.
patent: 4370540 (1983-01-01), Davis et al.
Roger Allen, IEEE Spectrum (Publication), "Lasers in the Factory", 1979.

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