Damping function of pneumatic butterfly valve with damping spring
(1) Damping helps to reduce the resonance amplitude of mechanical structure, thus preventing the structure from being destroyed due to the vibration stress reaching the limit;
(2) Damping helps the mechanical system recover to a stable state soon after being subjected to transient impact;
(3) Damping helps to reduce sound radiation caused by mechanical vibration and reduce mechanical noise. The noise of many mechanical components, such as the shells of transportation vehicles and saw blades, is mainly caused by vibration. Damping can effectively suppress resonance, thus reducing noise;
(4) It can improve the processing accuracy, measuring accuracy and working accuracy of various machine tools and instruments. All kinds of machines, especially fine machine tools, require high seismic resistance and dynamic stability under dynamic environment, and their dynamic performance can be greatly improved through various damping treatments;
(5) Damping helps reduce the ability of the structure to transmit vibration. In the design of vibration isolation structure of mechanical system, the effect of vibration isolation and damping can be significantly improved by using damping technology reasonably.

Problems in stainless steel pneumatic butterfly valve industry
1. The price cost is increasing day by day. As the most important raw material of stainless steel pneumatic butterfly valve consumption, steel has entered a period of low profit with open and transparent prices. The rising steel prices will promote the consumption cost of stainless steel pneumatic butterfly valves;
2. The brand of stainless steel pneumatic butterfly valve industry in China is poor, and the competitiveness in the international market is weak. Due to the low industrial concentration, backward technology and low price competition, there is no "famous brand" in the international sense in such a huge Chinese stainless steel pneumatic butterfly valve market;
3. The fierce competition has eliminated small and medium-sized stainless steel pneumatic butterfly valve enterprises from time to time.
4. The R&D strength is weak and the capital investment is insufficient. China's technological progress is still in the 1980s abroad. Although a large number of advanced technologies and consumer lines have been introduced, the digestion and absorption of technology lacks the basic support of software and hardware.
5. Brain drain of theoretical application technology. At present, although many colleges and universities in China are engaged in scientific research, and many theoretical discussions and patent papers are of a high degree, they are not closely separated from consumption theory, and the ability to transform theory into waste products is poor.