1. Sealing ring material and working pressure

 

The sealing ring material is also very sensitive to the working pressure. There is a great difference between the pressure of the sealing ring made of different materials and the pressure of the sealing ring of different types, so there are pressure resistance, oil resistance and temperature resistance in the sealing ring products. In terms of oil seal, the working pressure is small, if it exceeds its bearing range, it will not only lead to leakage but also reduce the service life of the seal ring.

 

The existence of the sealing ring is essentially in order to protect the equipment and maintain the normal operation of equipment, such as in the hydraulic cylinder seal to prevent leakage and its inside and outside to prevent impurities into the equipment of the outside world, to avoid contamination of impurities in the oil and equipment components of friction, increase the service life of equipment, reduce the fault in work.

 

The quality of an equipment sealing device is becoming an important indicator to judge the performance of equipment. With the development of modern mechanization, the old and extensive sealing method will be gradually eliminated. Sealing device as an accessory of mechanical equipment will occupy a more and more important position.

 

2. Sealing ring material and working temperature.

 

Temperature is very important for the performance of sealing materials, too high or too low is not good. Too high temperature will reduce the hardness and tensile properties of the seal ring, too low temperature will make the seal brittle. So each sealing material has its own low and high Z temperature that can be adapted to. Now most sealing ring materials are mostly mixed materials, so the temperature should be more accurately controlled.

 

3, sealing ring material and work in the medium compatibility.

 

According to the sealing medium to choose sealing material, this is very important, because the sealing ring will have direct contact with the sealing medium, if there is no good compatibility between them will not only damage the sealing ring but also pollute the sealing medium. The material of sealing ring is not subject to corrosion and wear of sealing medium, chemical reaction and a series of circumstances, special circumstances need special consideration.

 

4, sealing ring material and mechanical movement speed.

 

Sealing materials also differ in their ability to adapt to the speed of mechanical movement. When the speed of mechanical rotation is high, seals made of ordinary materials may fail and cause leakage.