The Present Situation and Development Trend of Automobile Rubber Air Spring in China
2022-02-07
The rapid development of China`s auto industry over the past 10 years has resulted in a significant increase in technical content, manufacturing level, and output. However, looking at the overall strength of the entire Chinese auto industry, we are also very clear that there is still a big gap with the developed countries. Compared with us, we are still affected by the production technology of the entire vehicle. It is not possible to universally equip rubber air springs in cars, buses and trucks. The rubber air spring of automobile uses the elasticity and air pressure of the rubber to obtain the functions of comprehensive shock absorption, shock absorption, vibration isolation, noise prevention and buffering, thus playing the role of elastic support bearing the load. Rubber air springs are the core components of automobile shock absorption. Its performance directly affects the comfort of the automobile and the damage to the road. The current domestic situation is affected by the lack of independent intellectual property rights, imported models and bodywork of China's auto industry. China's rubber air springs have a certain gap between the production technology, product performance, quality and market share, and the development of the world auto industry. Stayed at the level of the 90s of the last century, especially in the supporting of large luxury passenger cars and large-scale trucks, there is still a big gap compared with foreign developed countries. At present, China's rubber air springs are mainly focused on the matching and application of railway trains and paper machines. Rubber air springs used in automobiles (especially for luxury passengers and trucks) started late in the country. According to the survey, the current domestic enterprises capable of large-scale production of automotive rubber air springs are the Guizhou Advance Rubber Factory and the Northwest Rubber Factory, and the Shaanxi Chenguang Rubber Factory is currently under research and development. Although there are air spring manufacturers in China, their product types are relatively single (mainly include long pillow type, curved bag type and membrane type), and the applicable size range is narrow (spring travel about 12 cm), and the product quality is Imported products are relatively poor (life of about 3 million times). Therefore, the scope of application of their products can only stay in the middle and low-end cars, and the added value is relatively low. The foreign automobile industry is relatively more developed than China, and therefore the supporting production technologies for its equipment and components are more advanced than those in China. In Europe and the United States and other developed countries, the penetration rate of air springs in cars has reached more than 95%; even in the passenger cars and trucks, the popularity of rubber air springs, they are at least 5-8 years earlier than our country. In foreign countries, rubber air spring production technology is more advanced than the German CONTITCH air spring manufacturing plant and the United States FIRESTONE air spring manufacturing plant. Their products are not limited to product types (membrane type, gourd type, bladder type, long pillow type), performance (steady body, comfortable ride, shockproof, noise-proof function), and applicable range (wide load range). It is still superior to domestic products in terms of quality (life of more than 3 million times), and it is particularly important that they have international technical standards and have great advantages in intellectual property rights. At present, domestic air springs have not been widely promoted due to various reasons. According to statistics, in 2002, the output of passenger cars for large and medium-sized passenger cars in China was 81,900, and the output of large and medium-sized passenger cars was 416,400. According to the equipment requirements, large buses and trucks each need at least 6 or 12 sets of air springs, and medium buses and trucks each need 4 vehicles. According to the above 50% of vehicle production, equipped with air springs and with 8 sets of equipment per vehicle, there are nearly 4 million sets of markets in the country; each set of air springs has a market price of about 8 billion yuan at the domestic minimum price of 2,000 yuan; In addition, plus air spring maintenance market (according to statistics, maintenance market is about one-fifth of the supporting market), the country has a market of nearly 10 billion yuan each year. Market research, in these markets, although there are a few domestic (such as Guizhou Advance Rubber Factory and Northwest Rubber Factory) manufacturers in the production, but by the vehicle technology, their products are limited to the maintenance market, and because of their relative products Single, the quality can not be compared with imported products, so it can only occupy a place in the low-end product market; in the high-end market still have to rely on imports (every year needs to spend billions of dollars on the **), imported products are almost occupied More than 80% of the high-end car accessories and maintenance market. Development trend Rubber air springs are an inevitable trend in the development and matching of today's automotive equipment, especially in large passenger cars and trucks. Conventional trucks generally use leaf springs or oil-and-gas springs as damping components. However, as the world's automobile industry is developing in the direction of high speed, high performance, comfort, safety, reliability, and easy maintenance, steel plates and oil-air springs are increasingly Not adapted to its development. For example, in Europe, the penetration rate of rubber air springs has basically reached 70-80%, and China is in the early stages of development. It is expected that in the next 10 years, rubber air springs will be equipped in a large number of vehicles, and the penetration rate will reach European modern times. Level. Rubber air springs are widely used in the automotive industry in China. The annual automobile production in China is about 3.25 million vehicles. The output of large and medium-sized buses and trucks is less than 1/6 of the total output. Passenger cars, light buses and trucks account for 2.75 million vehicles per year, especially on the air springs of cars. The development space is even greater. If China's auto production is increased year by year, its development market will be even wider. With the continuous improvement and development of China`s auto industry, the introduction of new models and bodies, the improvement of China`s highway construction level and mileage, and the introduction of road protection laws and regulations, as well as the use of coaches and trucks for long-distance transportation are comfortable. With the improvement of performance, China's rubber air springs will surely welcome spring from the main development. In view of the development direction of the world's auto industry production technology, the development direction of the production technology of rubber air springs will also be synchronized with it-the direction of strong shock absorption performance, long service life, and safety and reliability. This development trend has also clearly demonstrated that the research and application of rubber air springs in the formulation of new materials and its technology must inevitably go beyond the tradition, implement innovations, and implement independent intellectual property rights. Summary Recently, the National Development and Reform Commission has proposed a package of construction plans to improve the international level of China's auto industry in accordance with the current status of China's auto industry, and actively supported and guided the development of industry innovation systems and the development of independent intellectual property rights. In the field of rubber air springs, the entities that are given priority in development will surely obtain certain opportunities for participating in market competition, and they will also receive substantial returns in the market.
The rapid development of China`s auto industry over the past 10 years has resulted in a significant increase in technical content, manufacturing level, and output. However, looking at the overall strength of the entire Chinese auto industry, we are also very clear that there is still a big gap with the developed countries. Compared with us, we are still affected by the production technology of the entire vehicle. It is not possible to universally equip rubber air springs in cars, buses and trucks.