Formation of sealing effect

Seal formation: dynamic seal is divided into non-contact seals and contact seals. Non-contact seal mainly a variety of mechanical seals, such as: graphite packing ring, floating ring seals; rubber composite seals and rubber seals belong portfolio contact seals, relying on filling in a sealed chamber in the pre-compression force, leakage channel Hydraulic hose fittings blocking sealing effect is obtained. Seals used in hydraulic systems are mostly static seal (seal), reciprocating seals (piston, piston rod seal) and rotating seal sealing effect of the factors affecting: Sealed structure selection and film forming, pressure, temperature, material compatibility resistance, dynamic seal in contact with the work surface of the material, hardness, geometry, surface finish. First, several anti-sealing material excellent in dielectric properties and characteristics 1, NBR: 2, silicone rubber: 3, fluorine rubber: 4, EPDM: 5, PTFE: 6, polyurethane rubber: 7, acrylic ester rubber: