Continuous curing device for longitudinally extended products

Details Continuous curing device for longitudinally extended products Continuous curing device for longitudinally extended products

1976-07-20

1977-07-12

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means treating shaped work

4251744, B29H 524, B29H 528, B29H 714

Patent

active

040351297

ABSTRACT:
An apparatus for continuous curing (vulcanization) of elongated products, such as cables comprising a conductor surrounded by a mantle of a crosslinkable material. The apparatus comprises a curing tube through which the cable is passed longitudinally. The curing tube comprises a heating zone in which the cable is subjected to heating for heating the cable to curing temperature in a pressurized gas atmosphere and a subsequent cooling zone in which the cured cable is subjected to cooling. The curing tube is coupled to at least one electric currency source so that the wall of the curing tube is heated due to the electric resistance of the wall material to form within the heating zone a heated mantle uniformly surrounding the cable and radiating heat thereto.

REFERENCES:
patent: 3588954 (1971-06-01), Nakamura et al.
patent: 3645656 (1972-02-01), Stauffer et al.

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