Polyvinyl chloride (PVC) modified soft and hard consubstantial heat insulation sealing section bar and forming process thereof

The invention discloses a polyvinyl chloride (PVC) modified soft and hard consubstantial heat insulation sealing section bar and a forming process thereof. The forming process comprises the following steps of: manufacturing a vacuum forming die with two feeding holes; respectively extruding soft and...

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Bibliographische Detailangaben
Hauptverfasser:	LIN CHUANGHUI, CHEN HUA, WANG LIANGTIAN, ZHANG XUEWEI, CHEN YONGSI, OUYANG TI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CYLINDERS 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 METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PIPES PISTONS SEALINGS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention discloses a polyvinyl chloride (PVC) modified soft and hard consubstantial heat insulation sealing section bar and a forming process thereof. The forming process comprises the following steps of: manufacturing a vacuum forming die with two feeding holes; respectively extruding soft and hard PVC materials into the die from the two feeding holes by two extruding machines, and simultaneously controlling different PVC materials to perform vacuum forming so as to form PVC modified soft and hard consubstantial plastics at different forming temperatures; performing vacuum cooling setting on the PVC modified soft and hard consubstantial plastics after the vacuum forming is finished; and demolding after cooling is finished, wherein the forming temperature of the soft PVC material is between 115 and 118 DEG C, and the forming temperature of the hard PVC material is between 140 and 142 DEG C. The soft and hard PVC materials are extruded to the die through two extruders and are controlled to be subjected to