초록 ▼

Accordingly the present invention provides a method of construction using a graphite or carbon fiber composite structure with a low temperature cure epoxy resin system to have a material system of minimum weight, high strength and high stiffness which eliminates a secondary bonding operation to effe

Accordingly the present invention provides a method of construction using a graphite or carbon fiber composite structure with a low temperature cure epoxy resin system to have a material system of minimum weight, high strength and high stiffness which eliminates a secondary bonding operation to effect load transfer between structural components and to have service life compatible to its use environment. A graphite or carbon fiber, preimpregnated with a low temperature (195°F.) curing epoxy resin prepared in the form of unidirectional tape, is laid up or wrapped over a contour form and then cured to provide stiffness and strength equal to or exceeding those of a selected metal such as aluminum or steel.

대표청구항 ▼

A rocket nozzle exit cone subassembly comprising: (a) an adaptor of annular configuration; (b) an exit cone bonded to the inner surface of said adaptor; and (c) a net of preimpregnated carbon fiber tape, said tape having a low temperature cure epoxy resin system, wrapped about said exit cone and sai

A rocket nozzle exit cone subassembly comprising: (a) an adaptor of annular configuration; (b) an exit cone bonded to the inner surface of said adaptor; and (c) a net of preimpregnated carbon fiber tape, said tape having a low temperature cure epoxy resin system, wrapped about said exit cone and said adaptor so that when cured said net is firmly bonded to said exit cone and said adaptor. A construction method comprising the steps of: (a) applying a low temperature cure epoxy resin to the surface of a material combination; (b) laying up a plurality of strips of a preimpregnated carbon fiber tape, said tape having a low temperature cure epoxy resin system, to form a predetermined net about said material combination; and (c) curing said material combination with said net at a low temperature.