Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Indefinite or running length flexible strand – rod – tube – or...
Patent
1978-09-05
1981-02-10
Hoag, W. E.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Indefinite or running length flexible strand, rod, tube, or...
425 93, 425144, 425155, B29D 302, B29C 100
Patent
active
042499801
ABSTRACT:
This invention relates to a method and apparatus for fabricating continuously a solidified elongated rod or hollow shapes of various geometric cross sections of fiber reinforced plastic having a smooth surface. A plurality of strand-like fibers are wetted with a liquid, heat-hardenable plastic, the fibers are collected together into a plastic-wetted bundle, the bundle is continuously, in intermittent steps, passed through an elongated die, the die being heated in sequential zones of progressively increasing temperature so as to harden the plastic by the time the bundle emerges in rod form from the die. The bundle is moved through the die intermittently, dwelling for a predetermined time at rest, then moved an incremental distance, permitted to dwell again, until the hardened bundle eventually emerges from the die. The various heated zones of the die serve to initiate and carry the hardening of the plastic to a predetermined point at which the bundle is moved and the cycle is repeated. In the first zone, the bundle is preheated to a point just short of the plastic becoming hardened such that upon movement to the next succeeding zone, which usually is at a higher temperature, the plastic is cured to a hardened stage.
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Fish Elson B.
Shobert Samuel M.
Hoag W. E.
Plas/Steel Products, Inc.
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