目前,油缸活塞与缸体的密封主要是用各种耐油橡胶或聚氨脂密封环和金属密封环来实现,它既起密封作用又起支承作用。由于多次往复运动,密封环磨损,寿命缩短。金属密封环虽然适用温度范围大、摩擦力小、寿命高,但难于加工,内泄漏量大,易出现拉缸现象。针对上述弱点,我们在活塞上加尼龙环,使它起到支承作用,让密封件只起密封作用。 At present, the cylinder piston and cylinder seal is mainly used in a variety of oil-resistant rubber or polyurethane seal ring and metal seal to achieve, both from the sealing effect and supporting role. Due to multiple reciprocating motion, seal ring wear and shortened life expectancy. Although the metal seal ring for a wide temperature range, small friction, high life expectancy, but difficult to process, the large amount of leakage, easy to pull cylinder phenomenon. In response to these weaknesses, we add a nylon ring on the piston, making it play a supporting role, so that the seal only play a sealing role.