Heating device for use in vulcanizing apparatus

Details Heating device for use in vulcanizing apparatus Heating device for use in vulcanizing apparatus

1985-09-24

1986-07-08

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Reshaping, resizing or vulcanizing means for tire, tire...

Toroidal or annular female shaping means and coacting means...

425 3, 425DIG13, 249 78, 219 1055R, 219 1057, B29H 502

Patent

active

045990611

ABSTRACT:
In a heating device for use in a vulcanizing apparatus in which a green tire is vulcanized by using a metal mold, three magnetic cores around each of which an electromagnetic coil is wound are arranged equidistantly on at least one surface of the metal mold, and a magnetic yoke is arranged on these magnetic cores. Then, three phase alternating currents are respectively supplied to the electromagnetic coils to generate uniform magnetic fluxes passing through portions of the metal mold between adjacent magnetic cores. Therefore, it is possible to obtain the heating device for use in the vulcanizing apparatus which can realize the uniform eddy current distribution i.e. the uniform temperature distribution in the metal mold by a simple construction.

REFERENCES:
patent: 1348228 (1920-08-01), Ledwinka
patent: 1379595 (1921-05-01), Post
patent: 1505686 (1924-09-01), Root
patent: 2581939 (1952-01-01), Deist et al.
patent: 2738406 (1956-03-01), Zaleski
patent: 3274303 (1966-09-01), Muller
patent: 3555621 (1971-01-01), Hara
patent: 3564654 (1971-02-01), Steingrovever
patent: 3892505 (1975-07-01), Doucherain et al.

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