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A device for sealing of the interior space of plastic pipes which are under elevated pressure during the extrusion process
A device for sealing of the interior space of plastic pipes which are under elevated pressure during the extrusion process
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机译:一种用于密封在挤压过程中处于高压下的塑料管内部空间的装置
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摘要
The synthetic-resin tube emerging from an extrusion die is internally sealed by a pair of sealing members having inflatable peripheries and connected to flexible members running back through the die so that one of the seals can be drawn toward the die while the other is entrained with the tube away from the latter and vice versa.
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