It is understood that molding machines are the most critical core equipment for producing giant radial tires. At present, only a handful of companies, including Michelin, Bridgestone, Goodyear, and Yokohama, have giant radial tire production technologies and equipment. However, their molding equipment is currently two methods, and the technology of process equipment is strictly confidential. In the past two years, some rubber machinery companies in China have also actively developed giant radial tire molding equipment. However, they are all continuing overseas and use two methods. Tianjin Saixiang insisted on original innovation when determining the technical route. It adopts a one-step molding. After no reference and information, after nearly two years of efforts, it not only broke the monopoly of foreign countries, but also opened up a precedent for the creation of rubber machinery in China.
The equipment covers an area of ​​about 1500 square meters, up to 9.2 meters, a total weight of about 800 tons, the entire process using computer control and closed-loop control, all molding operations are completed on a rail, so the tire molding accuracy, good quality, high productivity. According to inspections, the giant radial tire made with this equipment is about 3 meters in diameter, the calculated perimeter error is only 0.72 millimeters, and the weight error is controlled within 1.5%. The indicators fully comply with the technological requirements. During the R&D process, this equipment solved a series of technical problems such as the manufacture of molding drums, spindle material formulations, and capsule turn-ups, and formed more than ten invention patents. At the moment when the molding machine finally completed the turn-up action of the giant radial tire capsule, all the people on the court cheered for it.
Industry insiders believe that the successful development of the China-made and world-leading single-stage giant radial tire molding equipment will provide a guarantee for China's giant radial tires to occupy a place in the world market in the future.
It is reported that the equipment has been ordered 7 units, and has passed the European CE certification. This project has also been listed as one of the 20 major projects for industrialization of independent innovation in Tianjin this year.
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