Cangzhou stainless steel compression spring parameters
spring is a mechanical part that uses elasticity to work. It is generally made of spring steel. Although the spring is small, as a general-purpose basic component, it has a large quantity, a wide range and a complex variety. It is used to control the movement of machine parts, mitigate impact or vibration, store energy, measure the size of force, etc. it is widely used in machines and instruments, and its application fields involve almost all fields of the national economy. In recent years, the rapid development of China's national economy has also driven the rapid growth of the cross-linked spring industry in China, but there is no rapid growth in the thermoplastic industry. Experts predict that this growth trend will continue, and the sales volume of the whole industry will exceed 4billion yuan by 2010. According to the analysis, there are five markets with large demand for spring products: transportation, daily hardware, instrumentation and electronic appliances, industrial and mining accessories, and overseas export markets
Cangzhou stainless steel compression spring parameters
control the movement of machinery, such as valve spring in internal combustion engine, control spring in clutch, etc. ② Absorb vibration and impact energy, such as buffer springs under cars and train carriages, vibration absorbing springs in couplings, etc. ③ Store and output energy as power, such as clock spring, spring in * * *, etc. ④ It is used as a force measuring element, such as a force measuring device, a spring in a spring scale, etc. The ratio of load to deformation of the spring is called spring stiffness. The greater the stiffness, the harder the spring is. Spring is an elastic element widely used in the mechanical and electronic industries. When loaded, the spring can produce large elastic deformation and convert mechanical work or kinetic energy into deformation energy. After unloading, the deformation of the spring disappears and returns to its original state, converting the deformation energy into mechanical work or kinetic energy
the transportation market has the strongest pulling force
the transportation market, including the provision of supporting and maintenance parts springs to automobile, motorcycle, diesel engine, railway and other industries. This is the most important and promising market in the spring industry at present, with sales close to 40% of the whole industry. In 2002, the automotive industry alone had a demand for 7million suspension springs, 100million valve springs (including motorcycle and diesel engine manufacturing), and 1.2 million stabilizer bars. In 2002, the total sales of springs supporting and providing maintenance parts for these industries exceeded 1billion yuan. By the end of 2020, China's nonferrous metal industry has entered the ranks of world powers
in the coming years, China's automotive industry will enter a stage of rapid growth, with an annual growth rate of 15% - 25%. In 2003, the demand for suspension springs is expected to be close to 10million pieces, and the demand for stabilizer bars is expected to be 1.6 million pieces. The rapid development of the automotive industry has significantly stimulated the spring industry, and has become the largest user of the spring industry, and has attracted the attention of foreign spring peers. In addition to several foreign-funded and joint ventures that have entered the Chinese market first, recently, Japan clockwork Corporation and central clockwork Corporation have also entered China to occupy a place in this market
another major potential market for the spring industry is the railway system. With the deepening of the reform of the railway system, the gradual opening of the market to the outside world and the implementation of the high-speed railway plan, the vehicle damping system is facing upgrading. The installation of new damping and noise reduction components on the railway line will bring huge business opportunities to the spring industry. Some enterprises have been listed as the designated units of high-speed train springs of the Ministry of railways, Some units are also developing rubber metal composite spring driven oil pump motors for vibration and noise reduction of high-speed railway tracks. At present, the market of the railway system has just begun to open to the outside world. Although the degree of openness is not large, the potential is considerable
in the next few years, the motorcycle industry will not have a great growth, and will still maintain the current level of annual output of 13million vehicles. The demand for motorcycle damping springs and clutch springs will remain at the level of 50million and 40million pieces. With the improvement of environmental requirements, the proportion of two-stroke motorcycles will decline, and the proportion of four stroke motorcycles will rise, which will bring certain increment to the valve springs
the market demand for daily hardware is strong.
daily necessities industry and hardware industry, including lighters, toys, locks, door hinges, fitness devices, mattresses, sofas, etc. in terms of quantity, the demand for springs is the largest, with tens of billions of pieces. The technical requirements are not high, and the price is very low. They are generally produced by small spring factories scattered all over the country. They have unique advantages in cost, and it is difficult for large spring factories to compete with them. In recent years, the domestic market has a strong demand for daily-use hardware products, which has driven the growth of supporting springs, which has also led to the birth of new spring enterprises from time to time. In the future, the market demand will grow at a rate of 7% to 10% per year. After China's entry into WTO, the export volume of daily-use hardware products has increased significantly, and the demand for springs has been driven. However, affected by the demand of the international market and trade barriers, the international market has its uncertain side
the market of instruments and electrical appliances has begun to recover.
typical products of instruments and electronic and electrical appliances springs, such as brush springs, switch springs, camera springs, computer keyboard springs, instrument accessories springs. Many of these springs are leaf springs and guide springs, and the material and technical requirements of different products vary greatly. A few years ago, the domestic instrument and electronic appliance industry was impacted by imported products and generally depressed. The spring manufacturers supporting it were dragged down. Recently, it has improved and tends to recover
when pickling the torsion spring, prevent excessive corrosion. The corrosion inhibitor added in the pickling solution should not only have strong corrosion inhibition effect, but also have strong hydrogen permeability resistance
the industrial and mineral products market is in adjustment.
the industrial and mineral products market covers other industrial departments except the transportation industry, from spinning machine cradle spring to chemical spring, power station switch and support hanger spring, bulldozer spring, etc. the material, technical requirements and process of products vary greatly, and the demand for springs is in direct proportion to the market demand for means of production and the scale of infrastructure projects, Affected by the industrial structure a few years ago, this market has been in a state of hesitation. It has rebounded recently, but it still hasn't got rid of the trend of adjustment
the overseas market has great potential
according to customs statistics, in the past two years, China has exported about 22000 tons of springs every year, most of which are leaf springs, and coil springs account for only a small part of them. The product structure is mainly hardware springs for daily use, and the destination is Hong Kong and Taiwan. A small amount of mold springs and auto parts springs are exported to Japan, Europe, America and Southeast Asia, but they have not really entered the OEM supporting. In recent years, in order to reduce procurement costs, some American auto companies have shifted the procurement of auto parts, including springs, to China, creating a precedent for Chinese springs to enter the OEM supporting market in the United States. With the establishment of China's status as a major manufacturing country and the improvement of the technology and product quality level of the spring industry, the spring export market has a broad prospect. It is estimated that by 2005, the proportion of exported spring products in the industrial output value will reach about 5%, and the export volume will increase to 70million US dollars
according to statistical data, the export of spring products in industrialized countries accounts for about 15% - 20% of the industrial output value. In the long run, there is a great potential market for China's spring export. Chinese spring enterprises should take specific actions according to their own conditions, such as strengthening cooperation with foreign enterprises, introducing foreign advanced technology, so as to improve product quality, enhance competitiveness, create well-known brands, expand the international influence of products, and seize a larger international market share