Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1979-07-05
1981-06-02
Bell, James J.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264113, B29H 526
Patent
active
042711053
ABSTRACT:
Methods and apparatus are described for the manufacture of particle board in which a fleece of particle material with admixed binder is formed on an endless belt 1 at a forming station and is subsequently passed through a series of presses and heating devices where it is consolidated into particle board.
The lower, and preferably also the upper, covering layers of the fleece are selectively warmed at the forming station to activate the cold binding capability of the admixed binder and endow the fleece with sufficient stability to withstand the handling stresses as it is passed from one endless band conveyor to another. pa The selective warming is conveniently achieved by means of respective heating devices each of which incorporates a number of pairs of oppositely poled capacitor plates arranged alternately side by side along the length of the fleece and extending over the full width thereof. In this way longitudinally extending field lines pass between the capacitor plates and penetrate to a required depth in the associated covering layer.
In an alternative embodiment, in which the fleece is conveniently deposited in sequential layers on the endless band fleece carrier, the first layer, which forms the lower covering layer is warmed by passing it between a pair of capacitor plates.
REFERENCES:
patent: 2697254 (1954-12-01), Gordon
patent: 3171872 (1965-03-01), Jarrett et al.
patent: 3207819 (1965-09-01), Raddin et al.
patent: 3504073 (1970-03-01), Rakszawski et al.
patent: 3668286 (1972-06-01), Brooks et al.
patent: 3796529 (1974-03-01), Greten
patent: 3873662 (1975-03-01), Cartlidge et al.
patent: 4005162 (1977-01-01), Bucking
patent: 4111744 (1978-09-01), Reiniger
patent: 4113812 (1978-09-01), Talbott et al.
patent: 4163638 (1979-08-01), Smith
de Mets Albert
Neubauer Harry
Bell James J.
Bison-Werke Bahre & Greten GmbH & Co. KG
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