Method and apparatus for the electrostatic orientation of partic

Details Method and apparatus for the electrostatic orientation of partic Method and apparatus for the electrostatic orientation of partic

1982-01-15

1984-02-21

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264108, 4251748E, B06B 102

Patent

active

044329164

ABSTRACT:
Discrete elongated pieces of material are electrostatically oriented by cascading a multitude of such pieces through an orienting zone for deposit as a mat on an insulating belt or mat-support surface. An electrical current is passed through the mat to produce a directional electric field immediately above the mat parallel to the electric field of the orienting zone. Distortions in the electric field which result as the thickness of the mat increases or as the width of the orientation cell is reduced are avoided by varying the strength of the electric field along the length of the mat being formed to achieve a surface potential distribution (electric field) at the upper surface of the mat in the mat-forming zone which is essentially equal to the electric potential distribution between the vertically charged plates of the orienting zone.

REFERENCES:
patent: 3843756 (1974-10-01), Talbott et al.
patent: 3954364 (1976-05-01), Talbott et al.
patent: 4111294 (1978-09-01), Carpenter et al.
patent: 4113812 (1978-09-01), Talbott et al.
patent: 4284595 (1981-08-01), Peters et al.
patent: 4287140 (1981-09-01), Peters et al.
patent: 4323338 (1982-04-01), Peters et al.
patent: 4347202 (1982-08-01), Henckel et al.

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