JPS5841180B

PURPOSE:To manufacture productively a multiple tube suitable for car vacuum piping or te like by working a monolithic molded object comprising a plurality of synthetic resin tubes joined over the whole longitudinal direction. CONSTITUTION:Synthetic resin material (preferable polyamide thermoplastic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAMYA ITSUO, UMEMOTO YOSHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To manufacture productively a multiple tube suitable for car vacuum piping or te like by working a monolithic molded object comprising a plurality of synthetic resin tubes joined over the whole longitudinal direction. CONSTITUTION:Synthetic resin material (preferable polyamide thermoplastic materials) is extruded and molded by an extruding machine 1 to provide a multiple tube 2 in which a plurality of tubes are joined over the whole longitudinal direction in a unitary belt form. Then, each part b of this tube is cut by a cutting machine 5 with an edge 5a etc. to an intended length and after part of the mutual joints 6a are cut off, the parts 6 of each tube are developed and set on a bending fixture 7 constituted according to the shape of the final product and then heattreated in a heating furnace to provide the multiple tube for piping provided with an intended lendgth and shape.