The semi-steel radial tire is a new type of tire in which the carcass cords are arranged in the meridian direction, and the buffer layers are arranged circumferentially or close to the circumferential direction to tightly hoop the carcass. It consists of six main parts: tread, carcass, sidewall, buffer layer (or belt), bead, inner liner (or inner liner).
Due to the scientific and reasonable structure, the radial tires have improved the force and have many excellent performances than the diagonal tires.
(1) Long service life. Since the radial tire tread and the carcass ply have a relatively rigid belt layer, when the tire rolls on the road surface, the circumferential deformation is small and the relative slip is small. Moreover, due to the large radial elasticity of the tire body, the ground contact area of the tire is increased and the pressure is reduced, so that the tread wear resistance is strong, and the puncture resistance is not easy, and the mileage can be 30% more than that of the ordinary diagonal tire.
(2) The rolling resistance is small and the fuel consumption is low. Due to the small number of radial tire plies, low running temperature, fast heat dissipation, and small circumferential deformation, the rolling resistance is 15%-20% smaller than the ordinary diagonal tire, and the sliding distance is about 25%. Therefore, the use of radial tires is not only It can improve the speed of the car and improve the fuel economy of the car (generally reducing fuel consumption by 5%-12%).
(3) Large carrying capacity. Since the arrangement of the radial tire cords is consistent with the main deformation direction of the tire, the cord strength is fully and effectively utilized, so that the load capacity of the ordinary diagonal tire is more than 10%. For example, the domestic 9.00-20 radial tire with only one layer of steel cord has a carrying capacity of 1800 KG, while the same type of diagonal tire with 10 layers of cotton cord has a bearing capacity of only 1500 KG.
(4) Good shock absorption performance. The factor mid-tire carcass has large radial elasticity and large radial deformation (perpendicular to the ground direction), which can alleviate the impact of uneven road surface, improve the car's smoothness, ride comfort, and reduce the possibility of damage to the vehicle. To help extend the life of the vehicle.
Yongtai Group is the first company in Dongying City to independently develop, design and produce car radial tires. It is currently the only tire supplier in the World Rally Championship in China and won the 2014 World Rally Championship (WRC2) championship. Since the start of the World Rally Championship, the third tire manufacturer that won the title of World Rally Championship after Michelin and Pirelli. In the tire industry, Yongtai Group insists on doing perfection, focusing on the introduction of advanced technology and the investment of high-end equipment, researching and developing high-quality, precise and sharp products, and taking the road of product differentiation. High-performance green tires and racing tires with high technical content and high added value, accelerate the cultivation and construction of independent brands, and have a complete terminal sales network at home and abroad. Tire products are mainly car radial tires, light duty radial tires, radial radial tires, racing tires, MT tires, run-flat tires, SUVs, such as Shield Wheel, Benners, Gu Dewei, Kao Lai and other brands. Various high-end and personalized products such as tires, snow tires and colored tires, among which the “Shield Wheel” brand radial tire trademark was awarded the title of “China Well-known Trademark” by the State Administration of Trademarks, and the “Shield Wheel” brand radial tire product was rated as “Shandong”. "Famous brand", "Shandong Province export famous brand", the products are mainly exported to Europe, America, Australia, the Middle East, Southeast Asia, Africa and other more than 100 countries and regions.
In response to the call of the state, Yongtai Group actively changed its mode and adjusted its structure. While doing a good job in the fine tire industry, it will transform and upgrade its higher-tech and international high-quality industries, and its competitiveness and comprehensive strength will be further enhanced. On July 23, 2013, Yongtai Group invested 30 million pounds and successfully acquired British Copley International Holdings Co., Ltd., becoming the first private enterprise in Shandong Province to acquire the British entity factory, and realized the Jaguar Land Rover and Renault for Wing Tai Group. The marriage of internationally renowned automobile companies has enabled Yongtai Group to step into the threshold of internationally renowned companies and become a first-class supplier of world-renowned car companies. On June 12, 2015, Yongtai Group seized the market opportunity and focused on the “automotive industry” for development. It also spent £28 million to successfully acquire the “UYT” auto parts factory of Honda Motor Co., Ltd. of Japan! The “UYT” factory after the merger was renamed Copley Assembly Co., Ltd.
Yongtai Group adheres to the combination of “going out” and “bringing in” to continuously improve the technological level, visibility and profitability of the company. It has successively built the aluminum-magnesium alloy wheel project of Shandong Jiutai Auto Parts Technology Co., Ltd., with an annual output of 3 million pieces. Ultra-lightweight aluminum-magnesium alloy wheel production capacity; Shandong Kaoplai Machinery Technology Co., Ltd. "high-end stamping parts, body panels" project, the production of various high-end stamping parts, body panels and other auto parts, design year The production capacity is 54 million pieces. The above products mainly provide supporting services for world-renowned car companies such as Jaguar Land Rover, Renault, Honda, Toyota, Nissan, Infiniti and Subaru.
