Rotor for open-end spinning machine

Details Rotor for open-end spinning machine Rotor for open-end spinning machine

1996-09-24

1998-12-01

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57416, D01H 400

Patent

active

058423370

ABSTRACT:
A rotor for an open-end spinning machine. A spinning portion of a bottomed cylindrical body has a hollow portion where twisted yarn is formed by a continuous twisting operation while gathering short fiber groups in the maximum diameter portion of the spinning chamber. A rotary shaft is joined to the spinning portion. The spinning portion is made of a silicon nitride sintered body which includes no less than 60% silicon nitride grain having an aspect ratio not less than 3, and an average grain size of from 0.1 to 10 .mu.m. The rotor is hardly damaged at a high speed rotation of 100,000 r.p.m. or more, and the yarn strength and the yarn quality are not reduced even after an extended use of the rotor for a long time.

REFERENCES:
patent: 4242858 (1981-01-01), Dschen
patent: 4358922 (1982-11-01), Feldstein
patent: 4492077 (1985-01-01), Raasch et al.
patent: 4662170 (1987-05-01), Raasch
patent: 4777813 (1988-10-01), Hoffmann et al.
patent: 4848080 (1989-07-01), Hofmann et al.
patent: 4866927 (1989-09-01), Fetzer et al.
patent: 5326009 (1994-07-01), Kobayashi et al.
patent: 5499911 (1996-03-01), Nakata et al.

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