Abstract: A method for optimizing the location of heating elements within a mold for a rubber article. The position of one or more heating elements, e.g., curing pins or sipes, within the tread mold for a tire can be determined using a 3-D temperature profile so as to improve the efficiency of the curing process. For purposes of the optimization, the number of possible locations for such heating elements can be varied depending upon e.g., the computational time and accuracy desired.

Abstract: A method for optimizing the location of heating elements within a mold for a rubber article is provided. More particularly, a method is also provided for optimizing the position of one or more heating elements, e.g., curing pins or sipes, within the tread of a tire to improve the efficiency of the curing process.

Abstract: A method to cure a non-uniform rubber article uses one or more high thermal diffusivity pins in a mold to direct heat to the cure-limiting parts of the article to reduce the total cure time in the mold and increase the uniformity of the cure of the article. Reductions in cure time of up to 20% or more are achieved without substantially changing the function or degrading the performance of the article. The method is particularly useful for curing tires and treads for tires. Finite element analysis or thermocouple probes can used to determine the cure-limiting part(s) for the tire or tread. Using this knowledge, one or more of the high thermal diffusivity pins are located in the mold at positions to transfer heat into the cure-limiting part(s).

Abstract: A method to cure non-uniform rubber articles uses independently heatable, pin heat transfer elements to provide an efficient and practical means of reducing the total cure time of the article in the mold and optimizing the cure state of the article without substantially changing the function or degrading the performance of the article. Reductions in cure time of 10% or more can be achieved. The method is particularly useful for curing tires and tire treads. Finite element analysis or thermocouple probes can used to determine the state of cure for each part of a tire or a tread for a tire. From this knowledge of the cure-limiting parts, one or more independently heated, pin heat transfer elements are added to the interior surface of a tire or tread mold to transfer heat into the cure-limiting parts and to provide a more uniform state of cure.