Fibrous material moulding apparatus

Details Fibrous material moulding apparatus Fibrous material moulding apparatus

1977-07-29

1979-08-28

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 87, 264510, 264113, 264518, B28B 126

Patent

active

041660900

ABSTRACT:
A process for continuously forming a fibrous element in an elongate closed foraminous former during movement of the former through fluid extraction means, and which includes the steps of forming a fibrous dispersion, injecting the dispersion into said former, generating a pressure gradient across an extraction zone within said fluid extraction means and injecting the fibrous dispersion into the former at an injection velocity relative to the speed of the former (efflux ratio) to cause some of the fibres to build up as a fibrous mat on the inner surface of the former and the remainder to pack together to form a core so as to produce a continuous fibrous element having a fibrous core which is enclosed by a crust of greater density.

REFERENCES:
patent: 3377220 (1968-04-01), Berger et al.
patent: 3819435 (1974-06-01), Roberts
patent: 3882211 (1975-05-01), Kamp

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