Continuous vulcanizer for producing elongated member
AssigneesDaiichi-Nippon Cables, Ltd., Mitsuba Mfg Co., Ltd.
InventorsShiro Yonekura, Tsutomu Matsutani, Yoshiyuki Nishikawa
Life of this patent
Estimating the term…
Abstract
A horizontal type vulcanizer for continuous production of an elongated member made of a natural or synthetic polymer. The elongated member passes through a pressurized liquid heat medium to achieve vulcanization. Leakage from the liquid bath seal is prevented by having an intermediate separation portion and balancing the pressure in the bath with that in the intermediate portion. Thermal deterioration of the seal is prevented by cooling the liquid bath in the region adjacent the seals to increase the viscosity of the bath in that region. A water jacket positioned in contact with the front face of the extruder head prevents scorching of the elongated member prior to vulcanization.
Claims12
A continuous extruding and vulcanizing apparatus comprising:
- (a) an extruder for forming an elongated member from a polymer;
- (b) a vulcanizing bath for vulcanizing said polymer of an elongated member, said bath having one end connected to a head of said extruder;
- (c) sealing means disposed at one end of said vulcanizing bath opposite to the end coupled to said extruder, said bath being filled with pressurized liquid heat medium, said liquid heat medium being in contact with said sealing means;
- (d) an intermediate separation portion connected to said sealing means;
- (e) cooling means for providing cooling water connected to said intermediate separation portion to cool said elongated member vulcanized in said vulcanizing bath said intermediate separation portion preventing direct contact of said liquid heat medium having a high temperature with said cooling water;
- and
- (f) means for balancing inner pressures between said vulcanizing bath and said intermediate separation portion.
A continuous extruding and vulcanizing apparatus comprising:
- (a) an extruder for forming an elongated member from a polymer;
- (b) a vulcanizing bath for vulcanizing said polymer of an elongated member, said bath having one end connected to a head of said extruder;
- (c) sealing means disposed at an end of said vulcanizing bath opposite to the end coupled to said extruder, said bath being filled with a pressurized liquid heat medium other than water, said liquid heat medium being in contact with said sealing means;
- (d) an intermediate separation portion connected to said sealing means;
- and
- (e) cooling means for providing cooling water connected to said intermediate separation portion to cool said elongated member vulcanized in said vulcanizing bath, said intermediate separation portion preventing direct contact of said liquid heat medium having a high temperature with said cooling water.
A continuous extruding and vulcanizing apparatus comprising:
- (a) an extruder for forming an elongated member from a polymer;
- (b) a vulcanizing bath for vulcanizing said polymer of an elongated member, said bath having one end connected to a head of said extruder;
- (c) sealing means disposed at an end of said vulcanizing bath opposite to the end coupled to said extruder, said bath being filled with pressurized liquid heat medium, said liquid heat medium being in contact with said sealing means;
- (d) an intermediate separation portion connected to said sealing means having little or none of said liquid heat medium located therein during the operation of said vulcanizing apparatus;
- (e) cooling means for providing cooling water connected to said intermediate separation portion to cool said elongated member vulcanized in said vulcanizing bath, said intermediate separation portion preventing direct contact of said liquid heat medium having a high temperature with said cooling water.
Dependencies are inferred from the claim text.