Techniques for welding thermoplastic tubes

Details Techniques for welding thermoplastic tubes Techniques for welding thermoplastic tubes

1989-02-17

1990-04-03

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563042, 1563046, 156322, 156499, 156503, 156507, 604905, B29C 6518, B29C 6574

Patent

active

049137565

ABSTRACT:
Two thermoplastic tubes are welded together in a process which includes severing the tubes by a severing wafer having a temperature of about 350.degree. F. to create two cut sections. The severing wafer is removed from the space between the tubes and a hot wafer having a temperature of 500.degree.-1200.degree. F. is inserted in the space to radiantly heat the tube ends so that they are welded when pressed-together while in an unflattened and open condition.

REFERENCES:
patent: 4369779 (1983-01-01), Spencer
patent: 4516971 (1985-05-01), Spencer
patent: 4619642 (1986-10-01), Spencer

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