Elimination of Temperature Induced Nonuniformity in Tires by Air Ring Control 690075
Tire cooling apparatus has been invented which cools the tire evenly during the conventional post-cure inflation cycle after removal of the tire from the press. It consists of a hollow tube in the form of a ring having a series of holes located around its inside periphery to direct cooling air over the entire surface of the tire.
In addition to the mechanical nonuniformities in tires, tires made with thermoelastic cords exhibit another class of nonuniformity due to temperature differences across the tire cooling unevenly in free air. The coupling of these two nonuniformities prohibits proper grading and testing of tires. The apparatus offers a post-cure inflation treatment of vulcanized nylon and polyester tires providing a uniformity of quality throughout the tire with a higher percentage of acceptability when measured for force variation uniformity.