Process for induction heating of melt-out cores

Details Process for induction heating of melt-out cores Process for induction heating of melt-out cores

1988-11-08

1990-08-28

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264317, 4251748R, B29C 3514, B29C 4146, B29C 7104

Patent

active

049523465

ABSTRACT:
A process for induction heating of melt-out metal cores contained within articles or components made of plastic. The process uses induction heating and redirects flux lines for efficient melting. A high permeability magnetic core is heated by an induction heating coil about at least a portion of the magnetic core to produce flux circulation in a magnetic circuit formed by the magnetic core. Two magnetic nozzles are attached to the magnetic core with a gap therebetween for insertion of a specific shape of plastic article, the magnetic nozzles being shaped to direct and position a desired pattern of flux lines to heat and melt the metal core of the plastic article.

REFERENCES:
patent: 3640657 (1972-02-01), Rowe
patent: 3882220 (1975-05-01), Ryder
patent: 3957382 (1976-05-01), Grevel
patent: 4464324 (1984-08-01), Hager
patent: 4676296 (1987-06-01), Pascoe et al.

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