MANUFACTURE OF VINYL CHLORIDE TUBE

PURPOSE:To stabilize the produce quality and upgrade the working efficiency by carrying forced-air cooling for a vinyl chloride tube just after the bonding process. CONSTITUTION:A vinyl chloride tube coated with a bonding agent on its outer surface is inserted into a steel tube and heated by the hea...

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Bibliographische Detailangaben
Hauptverfasser:	MITSUYOSHI KATSUHIKO, NAKAMURA ISAO, SUZUKI MASAYUKI, KUROSAWA TOSHIYUKI, TAKAI AKIO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To stabilize the produce quality and upgrade the working efficiency by carrying forced-air cooling for a vinyl chloride tube just after the bonding process. CONSTITUTION:A vinyl chloride tube coated with a bonding agent on its outer surface is inserted into a steel tube and heated by the heating zones 4 - 6 to bond the vinyl chloride tube with the inner surface of the steel tube. Just after the bonding process, forced-air cooling is applied to the vinyl chloride tube by means of a fan 8. As a result, a vinyl chloride lining tube 1 can be cooled to the normal temperature without damaging the bonding force between the steel tube and the vinyl chloride tube.