Process for joining different kinds of synthetic resins

Details Process for joining different kinds of synthetic resins Process for joining different kinds of synthetic resins

1985-04-04

1987-01-13

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LR, B23K 2600

Patent

active

046366091

ABSTRACT:
A process for joining a first kind of synthetic resin to a second kind of synthetic resin includes several steps. A first step is providing the first kind of synthetic resin, which may include fillers, e.g., glass fibers. A second step is setting a second contact surface of the second kind of synthetic resin on a first contact surface of the first kind of synthetic resin. A third step is exposing an outer surface of the second kind of synthetic resin to a laser beam. The second kind of synthetic resin transmits the laser beam to the first kind of synthetic resin, which stores up heat of the laser beam. The second contact surface of the second kind of synthetic resin and the first contact surface of the first kind of synthetic resin are melted by the heat of the laser beam. A plurality of projections and a plurality of recesses are formed on both the first contact surface of the first kind of synthetic resin and the second contact surface of the second kind of synthetic resin. A plurality of the projections of the first kind of synthetic resin engage with a plurality of the recesses of the second kind of synthetic resin. If fillers are provided, at least some of the will extend between the first and second synthetic resins. Accordingly, the second kind of synthetic resin is securely joined to the first kind of synthetic resin.

REFERENCES:
patent: 3560291 (1971-02-01), Foglia et al.
patent: 3787873 (1974-01-01), Sato et al.
patent: 3989778 (1976-11-01), Osborne

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