Method for the vulcanization of pneumatic tires

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface

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425 29, 425 30, 425 40, 425144, 425384, 425170, B29H 502

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active

046082182

ABSTRACT:
A vulcanization method and press in which at time-spaced intervals of 1 to 40 seconds, temperature measurements representing increments of heat supplied to the vulcanizable body are taken of a medium used for vulcanization. A summation of the measurements continuously during the vulcanization process represents the heat supplied to the body and when the summed heat quantity equals the total heat quantity previously determined to be necessary for complete vulcanization, the process is terminated.

REFERENCES:
patent: 3649729 (1972-03-01), Davis et al.
patent: 3819915 (1974-06-01), Smith
patent: 4022555 (1977-05-01), Smith
patent: 4044600 (1977-08-01), Claxton et al.
patent: 4344142 (1982-08-01), Diehr et al.
patent: 4371483 (1983-02-01), Mattson

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