Casting tool with core puller and manufacturing process for a suction pipe and suction pipe with a cavity produceable by a core puller

摘要

Molding tool uses interchangeable core pullers to form different sized internal chambers. The core pullers (13a,13b), which are used to form an internal chamber (12) in the suction pipe molding, are interchangeable, enabling chambers of different sizes to be produced. Independent claims are made for: a) a suction tube with an internal chamber (12), produced by the claimed tool, has a double wall with an intermediate chamber; b) a process for producing the suction tube using the claimed tool which involves connecting a core pullers (13a,13b) to the remaining tool parts (10,11) to form a molding tool, filling the tool with plastic material and allowing to solidify.