Lined pressure vessels

Details Lined pressure vessels Lined pressure vessels

B - Operations, Transporting

32

B

18/687

B32B 1/02 (2006.01)

Patent

CA 1111222

LINED PRESSURE VESSELS ABSTRACT OF THE DISCLOSURE A method of making hollow, fiber-reinforced resin articles having a resin-rich interior coating is disclosed. The interior coating provides a chemically resistant surface and inhibits wicking of fluids through the sidewall of the tank. The coating is formed by positioning a hollow lay-up of loosely felted reinforcing fibers against the inner surface of a rigid mold having a cylindrical wall portion and domed end portions. A polyester fiber surfacing fabric is placed against the inner surface of the lay-up. The surfacing fabric and lay-up are com- pressed against the mold wall by a pressurized, inflatable core to hold the fabric and lay-up in place. A metered amount of a thermosetting resin is injected into the mold, and the pressure of the inflatable core is increased to compress the lay-up, to evenly distribute the resin throughout the lay-up, and to form a resin-rich coating with said surfacing fabric.

302743

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