Application of rubberized screws: machinery, cars, railway locomotives, water vehicles, airplanes and other aircraft.
It can be said that rubber shock absorbers are needed wherever shock absorption and isolation are required.
The reason why rubber covered screws are so widely used is that they effectively use the following characteristics of rubber:
1. Rubber has high elasticity and viscoelasticity. Compared with steel raw materials, the elastic deformation of rubber is very large, and the elastic modulus is very small!
2. The impact stiffness of rubber is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is beneficial to reduce the impact and dynamic deformation. External thread type shock-absorbing pressure block
3. The stress-strain curve is an elliptical hysteresis line whose area is equal to the vibration energy (damping) converted into heat in each sensational period, which can be adjusted by formula design.
4. Rubber is a non-compressible material, the shape of the rubber can be freely selected, and the hardness can be adjusted by formula design. The hardness can be 40-90 degrees, generally 70 degrees.
5. The rubber raw materials often used for rubber-coated screws are divided into: natural rubber, silicone rubber, and EPDM rubber. Use the corresponding materials according to the specific use environment.
For example, natural rubber is non-grade rubber with good insulation performance, and EPDM rubber has strong acid and alkali resistance. Coated flexible magnet
6. Thermal stability: -50--120 degrees
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