Jiangsu hydraulic valve testing machine development and prospects

​ To the original: http://www.dsyyjx.com/ valve testing machine China's valve industry rapid development requires a lot of valve testing machine, in particular, some high pressure hydraulic valve testing machine equipment, and one's current level of hydraulic parts and technology of China, far cannot meet domestic demand for hydraulic parts, for the hydraulic parts industry is a very urgent to solve the problem. Hydraulic system design and application level depends on the development of hydraulic products, mainly in three aspects. One, to the design of the hydraulic system, phasing out the hydraulic parts plant fiber and asbestos material products, but for chemical polymer material valve testing machine, but there was no common application in some of the liquid hydrostatic device, the current domestic hydraulic valve testing machine hydraulic pieces of rubber, anaerobic rubber hydraulic parts, can be used in hydraulic valve testing machine mechanical hydraulic system equipped with homebred brand that hydraulic parts is less, and level and quality of manufacture process stability is a big gap with imported hydraulic parts. Second, for the hydraulic system of dynamic rotation axis, most still use ordinary standard oil seal on the market, when the axis of rotation, when the design requirements of hydraulic equipment pressure model of the pressure of oil seal hydraulic parts provide stress levels in 1 to 3000000 mpa, and imported hydraulic parts can provide 10 million mpa pressure level, at least 3 times for domestic products, for dynamic hydraulic pressure seal valve testing machine, hydraulic parts, there is no in the mechanical shaft rotation is widely used in hydraulic system. Three, for the reciprocating motion of the hydraulic valve testing machine cylinder of the hydraulic system, now on the market of the vast number of domestic engineering machinery hydraulic valve testing machine, hydraulic valve testing machine design, dynamic hydraulic pressure system of the main hydraulic cylinder body are generally adopt u-shaped hydraulic circle. In the 90 s after the testing machine mechanical engineering hydraulic valve, hydraulic valve testing machine cylinder reciprocating dynamic hydraulic system design, began to use more sophisticated U circle and coaxial type design of hydraulic components. Relatively mature in the current international design have five pieces of composite ring, combination of 4 pieces, 3 pieces, 2 pieces of composite composite circle, etc., used in the hydraulic cylinder piston valve testing machine, with support ring combination ring as a hydraulic component production craft level is more complex, the design of domestic manufacturing capacity is not for mass production, the quality of the composite circle level is poor. China is also constantly introducing foreign advanced science and technology, manufacturing technology, domestic valve testing machine manufacturing industry level also had great progress, engineering machinery hydraulic valve testing machine of hydraulic valve testing machine hydraulic equipment advanced design level, the degree of resistance to high pressure, hydraulic system work, reliable performance and so on has the very big enhancement. Chinese hydraulic industry also got great progress, and gradually changed the low power consumption, high energy consumption of the operation mode of small businesses in the industry of resource combination and some of the large hydraulic project horse, and the future industry will be a high efficiency and low energy consumption, highly intensive, large scale enterprise is becoming more and more. China's hydraulic product quantity and quality level will gradually close to and reached the international advanced manufacture level.