Time:2017-07-17 10:05:00
Teflon (Teflon) gaskets, made of polytetrafluoroethylene resin pressed with a mold and then sintered or made of polytetrafluoroethylene rods, tubes, plates mechanically turned or cut into the gaskets, which have excellent corrosion resistance and good self The gasket has excellent corrosion resistance and good self-lubrication, non-adhesion, so almost resistant to all chemical media. It is used in petroleum, chemical, metallurgy, machinery, electric power and other corrosive media such as pipelines, pumps, valves, flange sealing of various types of equipment. Pure PTFE gasket and is a clean sealing product, will not form a contamination of any substance it comes into contact with, can be widely used in the food, pharmaceutical industry. At the same time also as an insulating material is widely used in the electronics industry.
Polytetrafluoroethylene gasket sealing torque of how many Nm?Production process (1) raw materials preparation; ingredients: pure F4 products, raw materials F4 fine resin, pounded, sieved
(2) mold preparation: clean with alcohol, no rust in the pressure mold, no adhesion
(3) weighing, according to the formula G = PV (where G is the amount of material added, P is the density of pre-products ( 2.18g/cm3)
V is the volume of the product) weigh out the weight.
4) Charging: Distribute F4 resin evenly on the whole pressing surface.
5) Pre-molding (pressing): Calculate the press gauge pressure according to the formula and set the press gauge pressure. Perform pressing
6) Demolding and trimming: Take the semi-finished product out of the mold and trim the surface to make the surface flat and the edges neat. Ready for molding.
7)Sintering: put the semi-finished product slowly into the sintering furnace, put in the right amount, heat up for one hour about to 390 degrees, and then carry on the heat preservation for one hour, about the molding and then start to cool down, after about four hours, arrive at the room temperature, carry on the finished product out of the oven, and finally complete the finalization of the shape.
Polytetrafluoroethylene gasket sealing torque of how many Nm?Performance: PTFE gaskets can be widely used in food, medicine and other industries by mechanical turning or cutting of flat gaskets, V-shaped gaskets, piston rings, ball valve gaskets, etc. have good characteristics such as corrosion resistance, anti-aging and non-conductive.