Semiconductor Equipment Bearing
Apply on : Semiconductor Equipment Industry
Material : 100% PTFE ( 3M™ Dyneon™ PTFE )
Description: In Semiconductor equipment industry, the environment must be sanitary. So we use 3M™ Dyneon™ PTFE to make sure the quality.
Teflon is the Chinese translation of the brand name Telfon® of polytetrafluoroethylene (English: Polytetrafluoroethylene, abbreviated as PTFE). It is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance. The normal working temperature can reach 260 degrees, and the instantaneous working temperature can reach 300 degrees. However, when it exceeds 375 degrees, it will produce fluorophosgene and perfluoroisobutylene that are harmful to the body, so iron Fluoron is generally produced by cold pressing and thermoforming.
Its friction coefficient is extremely low, so it can be used for lubrication. It is often made into oil seals, Teflon seals, gaskets, back-up rings, piston rings, wear-resistant sheets, etc. It is widely used in air and hydraulic machinery, Motorcycles, bicycles, automobiles (mechanical shaft seals, valve seats, valves, carburetor shafts), etc.
☆The mechanical properties of PTFE are soft and have very low surface energy.
☆Density: 2.1–2.3 g/cm³
☆Corrosion resistance: Able to withstand all strong acids except molten alkali metals, fluorinated media and molten strong alkali (including fluorantibonic acid, king
Water), strong bases, strong oxidants, reducing agents and various organic solvents.
☆Insulation: Not affected by the environment and frequency, the resistivity can reach 1018 ohm·cm, the dielectric loss is small, and the breakdown voltage is high.
☆High and low temperature resistance: Little effect on temperature, wide temperature range, usable temperature -190~260 ℃.
☆Self-lubricating: It has the smallest friction coefficient among plastics and is an ideal oil-free lubricating material.
☆Surface non-stickiness: No known solid material can adhere to the surface. It is a solid material with the smallest surface energy.
☆Atmospheric aging resistance, radiation resistance and low permeability: the surface and performance remain unchanged after long-term exposure to the atmosphere.
☆Nonflammability: Oxygen limiting index [6] is below 90.