Electric heating – Metal heating – Of cylinders
Patent
1982-07-28
1984-06-26
Reynolds, B. A.
Electric heating
Metal heating
Of cylinders
219 1055B, 219 1055F, 219 1055R, 264 26, 4251748E, H05B 668
Patent
active
044568061
ABSTRACT:
The disclosure relates to a method and apparatus for preheating to a predetermined temperature an elastomer product, such as a green tire, in preparation for vulcanization. The elastomer product is placed in a lateral posture on a rotatable table within a preheating chamber. While rotating the elastomer product, a high frequency wave irradiation is intermittently applied toward the upper surface of the elastomer product through a first waveguide. Simultaneously, additional high frequency wave irradiation is intermittently applied onto side portions of the elastomer product through at least one horn member coupled through a corresponding waveguide. The horn member is positioned such that it can be moved vertically or pivoted angularly. The temperature is measured in both a radial and circumferential direction of the elastomer product and maintained uniform during heating by varying the irradiation accordingly.
REFERENCES:
patent: 3474211 (1969-10-01), Soulier
patent: 3745291 (1973-07-01), Peterson et al.
patent: 3806689 (1974-04-01), Kegeresis et al.
patent: 3867606 (1975-02-01), Peterson
patent: 4157464 (1979-06-01), Smith et al.
patent: 4163140 (1979-07-01), Bardet
patent: 4198554 (1980-04-01), Wayne
Leung Philip H.
Reynolds B. A.
Sumitomo Rubber Industries Ltd.
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