B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 65/04 (2006.01) B29C 37/00 (2006.01) B29C 65/00 (2006.01) B29C 65/18 (2006.01) B29C 65/36 (2006.01)
Patent
CA 2129400
When resin pipes are connected through induction heating, the resin pipes of this invention do not form inside bulges due to air and resin expansion during the heating process. A cylindrical heater made of stainless steel is placed around the joint between two resin pipes made of polyvinylidene fluoride. The heater is then heated by induction heating to weld the joint of resin pipes. The heater has a plurality of holes on the cylindrical surface so that air and molten resin located between the heater and the resin pipes are released through the holes.
Lorsque des tuyaux de résine sont raccordés par un procédé de chauffage par induction, les tuyaux ne forment pas, selon l'invention, de gonflements intérieurs en raison de la présence d'air et de l'expansion de la résine au cours du processus de chauffage. Un réchauffeur cylindrique fait d'acier inoxydable est placé autour du joint entre les deux tuyaux de résine faits de polyfluorure de vinylidène. Le réchauffeur est ensuite chauffé par induction de chaleur afin de souder le joint des tuyaux de résine. Le réchauffeur comprend, sur sa surface cylindrique, de nombreux trous qui permettent le passage de l'air et de la résine en fusion se trouvant entre le réchauffeur et les tuyaux de résine.
Akabane Atushi
Iguchi Atsushi
Matsuoka Koichi
Yamashita Takehiro
Asahi Yukizai Kogyo Co. Ltd.
Smart & Biggar
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