Method and apparatus for extruding creaseless thin walled tubes

Details Method and apparatus for extruding creaseless thin walled tubes Method and apparatus for extruding creaseless thin walled tubes

1985-12-24

1987-10-06

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

83 37, 83 54, 83100, 264101, 264150, 264151, 264159, 2642095, 264568, 425296, 4253261, B29D 2322

Patent

active

046981969

ABSTRACT:
Apparatus for preparing seamless, creaseless, pliable, thin-walled tubes comprising means to extrude a moving continuous tube of polymeric film material from a die, means to radially stretch the continuous tube as it emerges from the die, means to longitudinally stretch the tube, and means to sever the tube while the tube is in motion to form tube segments while maintaining the tube substantially free of creases. This apparatus may be employed in a process to prepare seamless, creaseless, pliable, thin-walled tubes.

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Plastics Extrusion Technology & Theory, G. Schenkel.

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