Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Measuring – testing – or inspecting
Patent
1993-12-29
1996-01-23
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Measuring, testing, or inspecting
264 405, 264 406, 264315, 264326, 264 403, 324639, 425 29, 4251746, 425143, B29C 3504, G01N 2200
Patent
active
054863198
ABSTRACT:
A tire cure control system and method characterized by a computer-based data acquisition and process control unit that uses non-invasive, direct cure measurements to adjust the length of cure so that all cured articles such as tires will be cured to the same extent in the minimum amount of time, thereby to maximize production while providing uniformly cured products. The unit generally includes at least one microwave probe, although preferably multiple microwave probes, placed in the mold and a processor to process probe data and to initiate a control action principally initiating a mold opening sequence at the optimal time. Initiation of the mold opening sequence at least in part is based upon a measurement of the time rate of change of the attenuation of microwave energy caused by the curing rubber compound in the mold.
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Karpinski Robert P.
Mochel Virgil D.
Palmer Robert L.
Stone W. Ross
Bridgestone/Firestone Inc.
Hall Daniel L.
Thomas David A.
Vargot Mathieu D.
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