Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1983-01-07
1984-11-06
Czaja, Donald
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264337, 264DIG46, B29H 526
Patent
active
044811594
ABSTRACT:
A method for vulcanizing rubber within a mold by dielectric heating. The mold is made of dielectric materials such as ceramics or plastics, and the rubber material is vulcanized within the mold in a dielectric heating furnace. The surface portions of the mold in contact with the rubber material are preferably made of a material having a high dielectric loss factor in order to heat the rubber material or to prevent cooling of the dielectrically heated rubber material by conduction of the heat toward the mold. The other portions of the mold are made of another material having a low dielectric loss factor. The mold is a separate mold. The separate mold is fixed in a frame made of a dielectric material having a low dielectric loss factor.
REFERENCES:
patent: 2438952 (1948-04-01), Grotenhuis
patent: 2738406 (1956-03-01), Zaleski
patent: 2739351 (1956-03-01), Henning
patent: 2754546 (1956-07-01), Mason et al.
patent: 3010157 (1961-11-01), Cizek
Becker Mary A.
Czaja Donald
Toyoda Gosei Co,., Ltd.
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