mechanical seal

Teflon plate (also known as Teflon plate, Teflon plate, Teflon plate) is made of polytetrafluoroethylene resin by molding at room temperature, then sintered and cooled.

Teflon plate (also called Teflon plate, Teflon plate, Teflon plate) is divided into two types: molding and turning. Its products have a wide range of uses and have excellent comprehensive properties: high and low temperature resistance (- 192 ℃ - 260 ℃), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), climate resistance, high insulation, high lubrication, non-adhesion, non-toxic and other excellent characteristics. Polytetrafluoroethylene (abbreviated as Teflon or [PTFE, F4]) is widely known as "the king of plastics", and its Chinese trade names are "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", and "Teflon".

It is a polymer compound formed by polymerization of tetrafluoroethylene. Its simple formula is - [- CF2-CF2 -] n -, and it has excellent chemical stability Corrosion resistance (PTFE or F4 for short) is one of the most corrosion-resistant materials in the world today, "the king of plastics" It is the common name of polytetrafluoroethylene, which is a plastic with the best corrosion resistance. It is not corroded by known acids, alkalis, salts and oxidants, and even aqua regia can do nothing about it. Therefore, it is named Plastic King. Except molten metal sodium and liquid fluoride, it can resist all other chemicals, and is widely used in various kinds of products that require resistance to acids, alkalis and organic solvents, sealing, high lubrication, non adhesion, electrical insulation, good anti-aging endurance, and excellent temperature resistance (it can work at a temperature of+250 ℃ to - 180 ℃ for a long time). Polytetrafluoroethylene itself is not toxic to humans, but one of the raw materials used in the production process, ammonium perfluorooctanate (PFOA), is considered to have carcinogenic effect.

Temperature: - 20~250 ℃ (- 4~+482 ° F), sudden cooling and sudden heating, or alternate cold and hot operation are allowed.

Pressure - 0.1~6.4Mpa (full vacuum to 64kgf/cm2)

Its emergence has solved many problems in China's chemical, petroleum, pharmaceutical and other fields. PTFE seals, gaskets, gaskets, PTFE seals and sealing gaskets are made of suspension polymerized PTFE resin molding. Compared with other plastics, polytetrafluoroethylene has the characteristics of chemical corrosion resistance. It has been widely used as sealing material and filling material.

Its complete thermal decomposition products at about 500 ℃ include tetrafluoroethylene, hexafluoropropylene and octafluorocyclobutane. These products will decompose into highly corrosive fluorine-containing gases at high temperatures.

All kinds of polytetrafluoroethylene products have played an important role in the fields of national economy such as chemical industry, machinery, electronics, electrical appliances, military industry, aerospace, environmental protection and bridges.

Teflon plate

Teflon plate

Tetrafluoroethylene plate is applicable to the temperature of - 180 ℃~+250 ℃, and is mainly used as electrical insulation material and lining, supporting slider, track seal and lubricating material in contact with corrosive media. Rich cabinet furniture uses it in light industry, and is widely used in chemical, pharmaceutical, dye industry containers, storage tanks, reaction tower kettles, and anti-corrosion lining material of large pipelines; Aviation, military and other heavy industries; Mechanical, construction, traffic bridge sliders, guide rails; Anti-adhesive materials for printing and dyeing, light industry and textile industry