| 摘要 |
<p>PCT No. PCT/GB89/01194 Sec. 371 Date Apr. 12, 1991 Sec. 102(e) Date Apr. 12, 1991 PCT Filed Oct. 9, 1988 PCT Pub. No. WO90/04128 PCT Pub. Date Apr. 19, 1990.A composite hose comprising an inner helical core (1) made of metal, a plurality of layers of plastics material fibres and films (2, 2a, 2b, 2c) wound on the helical core (1), at least one layer of glass cloth (3) and at least one layer (4) of aluminium foil disposed adjacent one another and wound onto the layers of plastics material fibres and films (2) and an outer helical former (7) made of metallic material. In an alternative embodiment, at least one layer of ceramic fibres (5) is wound around the plastics material, which layer (5) is covered by at least one winding of a protective layer (6a; 6b). Such hoses are made by winding the layers successively one upon another on a rotating mandrel.</p> |
