Method of splicing a thermoplastic mandrel and a mandrel made by

Details Method of splicing a thermoplastic mandrel and a mandrel made by Method of splicing a thermoplastic mandrel and a mandrel made by

1984-06-13

1985-09-17

Kimlin, Edward

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156158, 156245, 1562724, 1562737, 156296, 1563041, 1563045, 1563046, 156258, 1563096, 264 25, 264248, B65H 6902, B31F 500, G03D 1504, B29C 1902

Patent

active

045418837

ABSTRACT:
The present invention provides a method for making a thermoplastic mandrel in which at least two sections of a thermoplastic rod, comprising a thermoplastic material which has been compounded with a finely divided metal or a metallic oxide filler, is subjected to a high voltage electrical induction field in a mold, causing fusion of the rod ends. Prior to the fusion, the ends of the thermoplastic rod are cut in a wedge shape, and in the preferred method, the wedge shaped ends meet at an angle of 90.degree. and are pressed together in the mold. The heat resulting from energizing the metal filler in said thermoplastic rods by induction, causes simultaneous melting of both thermoplastic rod ends and subsequent fusion of said rod ends. The thermoplastic mandrel made according to this method has a bond at the splicing point which is smooth, flash free, fused, solid and seamless, said mandrel being free of warping, shrinking and deformation.

REFERENCES:
patent: 2393541 (1946-01-01), Kohler
patent: 2700634 (1949-09-01), Ackerlind
patent: 3276941 (1966-10-01), Burns
patent: 3367808 (1968-02-01), Edwards
patent: 3461014 (1969-08-01), James
patent: 3462336 (1969-08-01), Leatherman
patent: 3574031 (1971-05-01), Heller et al.
patent: 3620875 (1971-11-01), Guglielmo
patent: 3620876 (1971-11-01), Guglielmo
patent: 3709775 (1973-01-01), James
patent: 3802985 (1974-05-01), Leatherman
patent: 3902940 (1975-09-01), Heller et al.
patent: 3923580 (1975-12-01), Leatherman
patent: 3941541 (1976-03-01), Heller et al.
patent: 3945867 (1976-03-01), Heller et al.
patent: 3996090 (1976-12-01), Leatherman
patent: 4000760 (1977-01-01), Heller et al.
patent: 4067765 (1978-01-01), Heller et al.
patent: 4239575 (1980-12-01), Leatherman

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