Application and development of piston ring

The development of piston rings has ushered in a period of rapid growth. The Development of piston rings has gradually ushered in a period of rapid growth. Piston rings have gradually been used as the heart components of internal combustion engines. Under the harsh working environment inside the engine, it is resistant to high temperature, high pressure and corrosion, and has the functions of sealing, supporting, lubricating and conducting heat. Piston Ring industry is a technology-intensive and labor-intensive industry that requires large investment and is closely related to the development of modern internal combustion engines and automobile industries. In 2010, the automobile piston ring industry, like the development of China's complete machine industry, won rapid growth. In 2010, China's car sales exceeded 18 million, becoming the world's largest car country worthy of the name, reaching a new high over the years. Piston Ring products are used in the field of internal combustion engines with an annual output of 70 million units, including vehicles and non-vehicles. In the maintenance market, according to statistics, the number of cars in China exceeded 70 million in 2010, and there are still a large number of agricultural machinery in China, bringing rare business opportunities to vulnerable parts of engines such as piston rings. The rapid growth of the host market and foreign trade market has brought benefits to spare parts enterprises, but most of them are limited by production capacity, and the installed output of host enterprises in peak season should exceed 30% of the average in normal months, the monthly capacity is seriously unbalanced. In the competition with foreign enterprises, the most tragic move adopted by domestic products is the price plunge. R & D competition is the core competition of piston ring industry in the 12th Five-Year Plan. At present, many enterprises in the industry are promoting the simultaneous development of engines or vehicle factories, which is actually manufacturing, not real design. The technology internationalization of piston ring enterprises is to realize the mapping and processing from drawings to samples, to the simultaneous development with the main engine factory, to reserve and master the future delay technology, and to support and guide the development of the engine and automobile industry. As the vehicle engine develops towards high strength, high output power and light weight, the piston ring becomes thinner and lighter in weight, which requires the piston ring to have high strength. In recent years, steel piston rings used in gasoline engines have been gradually introduced into the diesel engine field, and some diesel engines have begun to use steel oil rings. After the height of the piston ring becomes smaller, the tightness between the piston ring and the cylinder liner is strengthened, which can reduce the probability of engine oil entering the combustion chamber, thus reducing emission pollution. At present, thin piston rings have been gradually applied in the field of vehicle diesel engines and gasoline engines. The next few years will be a period of strategic development opportunities for China's industrialization, urbanization, marketization and internationalization. It will also be a critical period for China to build a well-off society in an all-round way. With the further deepening of the reform of the socialist market economy system, China's piston ring market will be fully opened.

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