Teflon has a place in the sealing material for its unique properties. There are many ways to process PTFE gaskets. Here we mainly talk about eight common methods:

1. The use of PTFE sheet cutting processing, usually we produce a large plate size, so we can use the turning board or molded plate to directly round the gasket, can also be cut into squares or round blocks, and then turned by lathe Into the gasket, for the thinner gasket can also be made into a die, directly punched out under the press, with the improvement of processing conditions, many gaskets can be directly placed in the computer engraving machine for operation. If the diameter of the gasket is large, we can first process it into a circular strip and then solve it by welding it.

2. The use of PTFE molded tube turning gasket, PTFE tube turning gasket surface flatness, large output, accurate precision, less waste, is also a more economical processing method, processing defects are each type of mat All the pieces need a matching tube mold.

3. The use of PTFE rods to turn the gasket, the PTFE rod is a solid rod. Generally, the lathes for making gaskets are small, which saves electricity, and many Dongguan PTFE gasket manufacturers have adopted automatic small lathes, which are convenient for processing. This processing method is generally suitable for bulk or small gaskets. Large gaskets are not primarily considered for material savings.

4. Guangdong PTFE Piston Ring Piston Seal Manufacturer the use of mold direct compression molding, this gasket generally has a certain thickness requirements, such as the thickness is required to be more than 3 mm, the gasket directly molded and sintered, the density is better, the pressure is good, but the processing speed is slow, according to the gasket The size of the actual PTFE resin powder input, the material is basically no loss, the mold processing is simple, and it is suitable for a certain amount of products.

5. The use of PTFE materials resistant to strong acid, alkali, strong oxidants, lining rubber, asbestos, graphite and other sandwiches, outsourcing PTFE layer, this is called PTFE coated gasket, this gasket can adapt Strong acid and alkali, low temperature fluid, chlorine and other pharmaceutical and food processing industries.

6. Metal-wound composite gasket, which is a gasket made of V-shaped or W-shaped stainless steel belt and PTFE, spirally wound, and spot-welded at the beginning. It is suitable for high temperature and high pressure steam, oil, gas, solvent and other production occasions.

7. Using a filler material to mix the plates and tubes processed by the PTFE resin, and then using the gasket processed by the finished car or directly molding to obtain a composite material gasket, the gasket made of the composite material is resistant to pressure and creep. Wear-resistant, high temperature resistant, corrosion resistant, improved PTFE performance, and also the direction of development and utilization of PTFE.

8. The expanded polytetrafluoroethylene material EPTFE is processed into a gasket. The expanded polytetrafluoroethylene is composed of fine bidirectional fibers. It is a low-density white polytetrafluoroethylene, which is softer than ordinary polytetrafluoroethylene. Good elasticity, excellent creep resistance and good sealing performance.