Process for securing projecting studs in the ends of wood resin

Details Process for securing projecting studs in the ends of wood resin Process for securing projecting studs in the ends of wood resin

1982-06-14

1983-12-13

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156153, 156245, 156293, 264274, 2643281, 2643286, B29B 3100

Patent

active

044203543

ABSTRACT:
A process for providing attaching ends projecting from a wood-resin composite veneer body such as the end of an elongate, hollow windmill blade, and wherein the attaching ends are provided on studs which are resin bonded in position in elongate enlarged openings formed in the ends of the bodies and have threaded ends or the like projecting therefrom. The process involves the preforming or precasting of resin sleeves of predetermined thickness around the plug ends of the studs to leave the attaching ends projecting therefrom, prior to inserting of the studs into the enlarged openings provided in the composite body. Curing of the sleeves thus occurs remotely from the wood-resin body. Thereafter the studs, with the resin sleeves now enveloping their bodies, except for the projecting attaching ends, are located in openings in the composite body and a relatively thinner coating of the same adhesive is applied between the precast sleeves and the opening walls which, when it hardens in an exothermic reaction, does not give off sufficient heat to deleteriously affect either the bond between the studs and the body, or the bond between the wood layers of the hollow blade sections.

REFERENCES:
patent: 2450482 (1948-10-01), Morin
patent: 2889582 (1959-06-01), Cooper
patent: 4224971 (1980-09-01), Muller et al.
patent: 4255735 (1981-03-01), Liautaud

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