Rubber seals are a class of general basic components in sealing devices, which play a very important role in the contradiction between leakage and sealing. ——It is a polymer compound with high elasticity. Dong DSH Sheng seals tell you that there are two types: natural rubber and synthetic rubber.
Natural rubber is made by extracting gum from plants such as rubber trees and rubber grasses; Synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in industry or all aspects of life
O–ring rubber seals (PTFE O-rings)
It is a combination of a low-friction filled polytetrafluoroethylene (PTFE) ring and an O-ring rubber seal that provides sufficient seal preload and compensates for wear of the PTFE ring.
Rubber gaskets (silicone pads, nitrile rubber pads)
Rubber gasket has oil resistance, acid and alkali resistance, cold and heat resistance, aging resistance and other properties, can be directly cut into various shapes of sealing gaskets, widely used in medicine, electronics, chemical, antistatic, flame retardant, food and other industries.
PTFE raw meal tape (PTFE sealing tape, PTFE raw meal tape)
PTFE raw material tape, also known as PTFE sealing tape. The reason why it is called raw material belt is because it is related to the processing technology, PTFE dispersion resin in the process of batching, calendering, heating and stretching, not exceeding 370 degrees, unsintered tape, called raw material belt.
It is made of rubber ring and metal ring bonded and vulcanized as a whole, and is used to seal the sealing ring of thread and flange connection, and the ring includes a metal ring and a rubber sealing gasket. The metal ring is anti-rust treatment, and the rubber ring is generally made of oil-resistant nitrile or fluororubber.
Metal static sealing
Metal gasket is made of high-precision, high-hardness sheet material, usually used in precision mold or precision hardware adjustment and measurement, or as a gasket, called precision gasket, sometimes also called mold gasket or precision gap piece.
Hollow metal O-ring (metal O-ring)
Metal O-rings are primarily used for sealing in high temperature, high pressure and ultra-vacuum systems. The main sealing materials are silver plating, nickel plating and copper plating.
Sealant/sealing glue is a sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain degree of adhesion. It is an adhesive used to fill the gap in the configuration to play a sealing role. It has the functions of anti-leakage, waterproof, anti-vibration, sound insulation, heat insulation and so on.
The main sealing material of sealant is made of dry or non-dry viscous substances such as asphalt, natural resin or synthetic resin, natural rubber or synthetic rubber as the base, with inert fillers such as talcum powder, clay, carbon black, titanium dioxide and asbestos, and then adding plasticizers, solvents, curing agents, accelerators, etc.
