Process for the manufacture of filament wound pipe using deforma

Details Process for the manufacture of filament wound pipe using deforma Process for the manufacture of filament wound pipe using deforma

1977-04-29

1978-12-19

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156175, 156425, B65H 8100

Patent

active

041304519

ABSTRACT:
In the process of manufacturing a pipe by winding either resin-free or resin-impregnated filaments or roving onto a mandrel in layers wherein there are both a resin curing step and changes both in direction and angle of winding of said filaments between layers at fixed locations described hereinafter as wind-stops, the improvement comprising providing a means such as a deformable or movable insert that 1) is capable of substantially withstanding the compressive forces arising from the winding of said filaments or roving upon the mandrel and remaining substantially uneffected by any temperature arising during manufacture of said pipe, 2) is substantially inert to said resin composition, 3) yields to the compressive forces which can arise due to shrinkage of said pipe during said resin curing step, and 4) is adapted to permit said shrinkage so as to avoid the creation of strains in the longitudinal direction of said pipe.

REFERENCES:
patent: 3033730 (1962-05-01), Martin
patent: 3629028 (1971-12-01), McLarty et al.
patent: 3661670 (1972-05-01), Pierpont, Jr.
patent: 3669782 (1972-06-01), McLarty
patent: 3765979 (1973-10-01), Thomas
patent: 3874329 (1975-04-01), McLarty
patent: 4026747 (1977-05-01), DeLorean et al.

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