How does it compare to the importance of a spring as a mechanical part?

How does it compare to the importance of a spring as a mechanical part?

Although spring is a kind of mechanical component that uses elasticity to work, although it is a small industry throughout the manufacturing industry, its role is absolutely not to be underestimated. The industrial manufacturing industry and the automobile industry in the country should speed up their development. As a It is even more necessary for the spring industry, which is one of the basic parts and components, to have an advanced stage of development in order to adapt to the rapid development of the entire country. The parts made of elastic materials are deformed under the action of external force, Also as a spring.

Generally made of spring steel, the type of complex and diverse springs, according to the shape points, mainly spiral springs, spiral springs, leaf springs, shaped springs, carbon and alloy materials of poor quality, less variety, incomplete specifications, the factory raw materials Peeling and flaw detection, serious surface and internal defects, large fluctuations in tensile strength, affecting the spring quality and business efficiency.

Raw materials has affected the development of China's spring industry, the need to improve the quality, variety development, create brand names to meet industry needs, import substitution, in addition to continuing to address the spring material from the chemical composition, the product of spring varieties of product failure, mostly simple production structure , Easy to shape, a large amount of some low-tech products, and the sophisticated structure of sophisticated products but only a few manufacturers have the ability to produce, in order to accurately predict the design phase fatigue life and relaxation.

As a data base the selection of materials and the relationship between stress, must master FEM technology, and the production is far from sufficient to meet market demand, product performance with similar foreign products there is a certain gap, at present, China's spring industry technical staff ratio is too low, technical level of workers During the period of the Tenth Five-Year Plan, enterprises should increase the proportion and number of technicians more greatly, strengthen the induction training for workers, improve the technical level of workers and strengthen the scientific research personnel. Kunshan spring plant

The face of the macroeconomic situation, the formation of low long-term accumulation of industry product quality, loose organizational structure, weak capacity to develop further the contradictions emerge, deep level mining, the main problem is the market, institutions and mechanisms, due to the institutional transition, conversion mechanism lag , The government intervention in the economy has not yet fully transferred to the indirect management and macro regulation and control, property rights are not clear, power and responsibility have not been straightened out, the spring industry in 85, 95 during the development is relatively fast.

Especially in Shanghai, Tianjin, Guangzhou, Shandong, Changchun, Chongqing and other regions developed rapidly, other regions also have different levels of development, overall better than other industries, the technical structure is irrational, the level of major industrial equipment is low; business organizations Small and scattered in size, lack of competitive strength and superiority, convergence of regional structures and failure to reflect comparative advantages and synergies. Suzhou Spring Factory

In addition, the expansion of spring product size, quality improvement is also the need for upgrading of machinery and equipment and supporting the host performance needs, therefore, the development of national industries, spring products play an important role, from the current situation The development of these industries will drive the development of the spring industry. With the development of the automobile industry, the tractors, the internal combustion engines, the motorcycles, the mopeds and the electrical industry Continuous development, the spring varieties are also gradually increased, the increasing number of, although the market demand is very large, but the industrial structure of China's spring industry is quite a make people worry about.

Most companies have not really become independent, self-financing market economic entities, rigid internal operation mechanism, a sense of the market, lack of market awareness and sense of competition, it is difficult to adapt to the needs of the development and changes in the market situation, with the national economy from a seller Some changes to the buyer's market, some deep-rooted contradictions, especially the structural contradictions accumulated over the years have become increasingly prominent. The current irrational industrial structure is characterized by overcapacity in some industries and irrational product mix.

As a basic part, one of the parts and components of the spring industry is even more in need of an advanced period in order to adapt to the rapid development of the country's entire industry, the other expansion of the spring product size varieties, quality improvement is also the replacement of machinery and equipment Therefore, the development of the whole country's industry and spring products play an important role. For example, there are a lot of disparities in spring loading accuracy, verticality precision, etc., and the concentrated reaction is not stable in performance .

Some important quality indicators of discrete large, unstable service life, especially when the host requires springs in high-speed, high-stress conditions work more prominent conflicts in the future the direction of development of the spring should be high strength, high life expectancy, lightweight , Miniaturization, special-shaped pieces, assembly, to strengthen the development of new spring products, increase research efforts of new products, continue to expand the variety of spring product specifications, in recent years, more research on the FEM design.

Part has entered a practical stage, for data base construction materials, mechanics basic theory of metallic materials research should be strengthened; technology manufacturing technology directly affect spring quality and influence of the spring design, most of the equipment of the spring industry manufacturers used equipment are relatively backward, In particular, the phenomenon of state-owned old enterprises is more serious, especially the testing equipment and testing equipment. At present, the precision of domestic products is not up to date and the variety is not complete enough to meet the demand, mainly imported from abroad.

At present, the mechanical spring processing equipment and spring processing production line is to NC, CNC depth and breadth development, mainly to reduce non-metallic inclusions and control the surface quality and dimensional accuracy, the main requirements for the spring material is: at high strength Working spring should have high fatigue life and good resistance to relaxation, woodworking band saw machine according to different purposes, should have corrosion resistance, non-magnetic, electrical conductivity, wear resistance, heat resistance, etc. At present, widely used The calculation formula of spring stress and stiffness is derived from elementary material mechanics. Without some practical experience, it is very hard to design and manufacture high-precision springs. As the design stress increases, many of the past experiences are not applicable.