Method of producing a reinforced rubber hose by using a...

Details Method of producing a reinforced rubber hose by using a... Method of producing a reinforced rubber hose by using a...

B - Operations, Transporting

29

C

18/764, 18/779

B29C 47/02 (2006.01) B29C 33/44 (2006.01) B29D 23/00 (2006.01)

Patent

CA 1297650

ABSTRACT OF THE DISCLOSURE A method of producing a reinforced rubber hose, including the steps of continuously extruding a long plastic mandrel from a plastic material and feeding the extruded plastic mandrel, extruding an unvulcanized inner rubber tube on the long plastic mandrel, forming a tubular reinforcing layer on the unvulcanized inner rubber tube, extruding an unvulcanized outer rubber tube on the tubular reinforcing layer, vulcanizing the unvulcanized rubber tubes, thereby preparing a long rubber hose formed on the long plastic mandrel, cutting the long rubber hose into short rubber hoses having a predetermined length, while concurrently cutting the long plastic mandrel into short plastic mandrels, removing the short plastic mandrels from the short rubber hoses, and crushing the short plastic mandrels into a starting form of the plastic material, and returning the starting form of the plastic material to an extruder for continuously extruding the long plastic mandrel.

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