Investigation and Analysis on the problems and causes of pump

Investigation and Analysis on the problems and causes of the mechanical industry of pump valve in

Because of our country's important position in the machinery industry in the machinery industry late, long-term lack of investment, resulting in poor foundation of the entire industry, weak foundation, weak strength. Especially with the improvement of the level of the host machine, the mechanical foundation behind the host of the bottleneck phenomenon has become increasingly apparent. In recent years, although the introduction of technology, technological transformation, scientific research and development, the country has given the support, but compared with the current level of market demand and abroad, there are still not a small gap, the specific performance in: less product variety, low level, unstable quality, early high failure rate, poor reliability. The varieties and specifications of mechanical parts of our country are few, especially the gap between high-grade products, which can not meet the growing demand of the host. At present, the basic parts of various types of performance indicators roughly equivalent to the level of foreign countries in 1980s. Quality is not stable, early failure rate is high, the reliability is poor, is the foundation of a fatal weakness. Therefore, many of the host plant to improve the market competitiveness of its host, often choose to import the basis of matching, resulting in domestic base, especially low technology content products, the domestic market share has declined. Although China's exports of basic products have obvious advantages, but mainly labor-intensive products, the number of large, low value, low value-added technology.

Currently, there are the basic parts of China's machinery industry of the following main problems: one is repeated construction is serious, low degree of specialization, do not form a scale, economic benefits poor basic mechanical pieces compared with the host and enterprises to establish the initial capital and technology needed investment is relatively small, so in several countries economic development period, an increase of the a number of basic parts production enterprises, there followed the large number of low level repeated construction, multi point, small batch, do not form a scale economy. Although the basic parts enterprises gradually independent of the host plant, but most of the enterprise itself is large and small and complete, professional degree is low, the level of equipment is not high, the quality is not stable, economic efficiency is low. As China's bearing industry three large-scale backbone enterprises with an annual output of bearing the sum total of less than 50% of a well-known foreign companies. In the past two years, China built hundreds of hydraulic parts factory, but the annual output of more than 30 million, only a few, mainly products is for supporting agricultural machinery. Company's annual output of Germany Rexroth hydraulic products 130 000, Japan Yuken (strain) is also an annual output of 60 million or more. Industrial developed countries die enterprise per capita output value of about 15 million to 20 million, China's only 4 yuan to 5 yuan. In recent years, with the implementation of the policy of common development of a variety of ownership, the basic parts industry is undergoing a process of intensive development from scattered to gradually concentrated. Second, the scientific research development strength is weak, insufficient capital investment, technological progress is slow basic pieces of various industries in the late 1970s, early 1980s is earlier introduced a number of foreign advanced technology, but the digestion and absorption of the lack of adequate soft hardware inputs. According to foreign experience, the introduction of technology and digestion and absorption of the required capital ratio of about 1:7, while China's understanding of this late, slow digestion and absorption. Market competition is actually a contest of technical strength. Foreign attaches great importance to this, have increased investment, occupy the commanding heights of the technology. Each big famous company for research and development funds accounted for 4% of its sales ~ 5%, key areas of 10%. At present in China although there are many colleges and universities engaged in research work, a lot of theoretical research, scientific research, patents, papers have quite high level, but combined with the actual production is not tight, especially into commodities slow. Third, and related raw materials, technological backwardness, low level of technology and technological equipment, has constrained the development of basic pieces of fasteners, chains, springs, bearings, dies and other products used in the poor quality steel, specifications less, a direct impact on the basic pieces of product quality, and hydraulic pressure casting and hydraulic parts quality of products related to electronic control technology and backward, also have a direct impact on the quality and reliability of hydraulic components. Mechanical parts are generally in bulk, mass production, there are many varieties, processing precision requirements of the product, so the production process and equipment requirements, high investment. In foreign countries, high efficiency and high precision special plane, production line or flexible line are used to realize high efficiency and automatic production. But some of the basic parts of China's enterprises by the financial constraints, investment is not, the enterprise transformation ability is poor, and the advanced equipment is not matching, affecting the quality of products on the grade.

Comprehensive analysis, causing the main reason is: 1. Enterprise base is weak due to the difference of our country basic pieces of machinery industry foundation, a weak economic foundation, science and technology into a small, development is weak, can not adapt to the host industry introduction, joint ventures, cooperation, rapid development, resulting in a decline in the rate of mechanical basic parts of the domestic market share.

2. Countries lack the basic pieces of machinery industry strong policy support although the countries in the industrial policy, a clear focus on supporting important mechanical basic parts (dies, bearings, hydraulic, pneumatic and seals), but lacks the support of the corresponding supporting policies, such as the mold industry, the tax burden heavy, enjoy the value-added part of the return of the enterprise, fewer than 100, too narrow, limited, also need policies to support. Therefore, in order to improve the market competition ability of the basic parts of China's machinery products, to better meet the needs of China's machinery industry on the basis of pieces of supporting domestic, it is expected that the basic parts industry in China is facing further adjustment, to integrate the advantages of resources and eliminate backward enterprises. In the next 10 to 5 years, the industry will be in the development of brand products and brand-name enterprises, to carry out technological innovation, improve domestic and international market competition.