China's pneumatic industry output ranks first in the world performance reliability needs to be strengthened
China's pneumatic industry technology is widely used in industry, agriculture, transportation, national defense, providing a powerful impetus to production. As of the third national industrial census statistics in 1995, there are more than 1,300 state-owned and private-owned organizations with an annual income of more than 1 million yuan in the pneumatic industry in our country, of which about 300 are pneumatic. As of 1996, China's total pressure output reached 2.348 billion yuan.
China's current supply and demand of the pneumatic industry is more stable. Through the introduction of technology, independent development and technical transformation, the technical level of the first large batch of products such as high pressure piston pump, gear pump, vane pump, general hydraulic valve, oil cylinder, non-oil lubricated pneumatic parts and all kinds of seals has been significantly improved, And stable mass production, for all types of host to improve product quality provides a guarantee. In addition, hydraulic pneumatic components and systems CAD, pollution control, the proportion of servo technology has also made some achievements, and has been used in production.
Currently, hydraulic, pneumatic and seal products total about 3,000 varieties, more than 23,000 specifications. Among them, there are 1200 hydraulic varieties, more than 10,000 specifications (including hydraulic products 60 varieties, 500 specifications); aerodynamic has 1350 varieties, more than 8000 specifications; rubber seal 350 varieties, more than 5,000 specifications, Has basically been able to adapt to the general needs of various types of host products for the major sets of equipment varieties supporting rate of up to 60% or more, and began to have a small amount of exports.
In 1998, the output of domestic hydraulic components reached 4.8 million with sales of about 2.8 billion yuan (of which mechanical systems accounted for about 70%); the production of pneumatic parts reached 3.6 million with sales of about 550 million yuan (of which the mechanical system accounts for about 60%); Production of about 800 million pieces, sales of about 1 billion yuan (of which mechanical systems account for about 50%). According to China Hydraulic Pneumatic Seals Industry Association Annual Report 1998 statistics, sales and production of hydraulic products was 97.5% (hydraulic 101%), pneumatic 95.9%, sealed 98.7%. This fully reflects the basic convergence of production and marketing.
The achievements made by our country's aerodynamic industry are outstanding, making a tremendous contribution to domestic production. But at present still can not keep up with the development needs of the host computer, product performance, service life is far less than abroad. Every year in our country, there is a lot of hydraulic pressure and pneumatic power needs to be imported, accounting for about 30% of the domestic market. Enterprises in the pursuit of output at the same time, should pay more attention to product quality.
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