As a major valve element, pneumatic butterfly valves have been widely used in various machinery, automobiles, railway locomotives, water transport vehicles, aircraft and other aircraft. It can be said that pneumatic butterfly valves are required wherever valves and isolation are required.
Others have the following characteristics:
1. High elasticity and viscoelasticity;
2. Compared with steel raw materials, the elastic deformation is very large and the elastic modulus is very small;
3. The impact stiffness of is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is conducive to reducing the impact deformation and dynamic deformation;
4. The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each vibration cycle, which can be adjusted through formula planning;
5. Non compressibility data (Poisson's ratio is 0.5);
6. The shape can be freely selected, the hardness can be adjusted through the formula planning, and the requirements for stiffness and strength in different directions can be satisfied.