Method and apparatus for producing fiber-reinforced rubber hose

Details Method and apparatus for producing fiber-reinforced rubber hose Method and apparatus for producing fiber-reinforced rubber hose

1988-01-19

1989-08-22

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

156149, 15624414, 15624417, 156382, 264 37, 264102, 264173, 264236, 264237, 264317, 425113, 4251744, 4251748R, B29C 4728

Patent

active

048593800

ABSTRACT:
Method and apparatus for producing a fiber-reinforced rubber hose having an inner rubber tube, a tubular reinforcing fiber layer, an outer rubber tube, and a resin cover tube, which are formed in this order on a core mandrel. After the formed cover tube is cooled to a temperature sufficiently low to harden the resin to an extent that substantially inhibits expansion of the outer rubber tube in the hardened cover tube, the unvulcanized inner and outer rubber tubes are microwave-heated to soften the rubber tubes, and to cause a thermal shrinkage of the tubular reinforcing fiber layer, for thereby causing a portion of the inner rubber tube to be forced through a network of an interlaced structure of the reinforcing fiber layer into the outer rubber tube. After the unvulcanized inner and outer rubber tubes are vulcanized, the resin cover tube is removed, and the fiber-reinforced rubber hose is prepared.

REFERENCES:
patent: 3049762 (1962-08-01), Jackson
patent: 3883384 (1975-05-01), Hopkins
patent: 4444700 (1984-04-01), Fondren
patent: 4702867 (1987-10-01), Sejimo et al.

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