Film covering process and function
In order to further improve the working life and filtration performance of the filter material, the expanded Teflon high-temperature cloth The microporous film is fused and compounded with the sintered glass fiber cloth through the high-temperature hot pressing process. The glass fiber cloth, Teflon protective layer and Teflon microporous film layer can be well connected together to form a high temperature resistant and corrosion resistant Teflon glass fiber sintered membrane coating filter material, whose corrosion resistance, folding resistance and wear resistance are further improved, The service life is further extended.
The new material tells us that the filter material after film covering has the following properties:
(1) High filtration efficiency: microporous membrane has unique cross microporous characteristics. The porosity of Teflon microporous membrane is more than 90%. It has good filtration performance for ultra-fine dust μ The fine dust of m and above can reach the filtration efficiency of 99.99% and achieve near zero emission; Teflon conveyor belt
(2) Low running resistance: because the Teflon film itself has the characteristics of non adhering to dust, hydrophobic and stable chemical performance, the working surface of the filter material after film covering is extremely smooth, and the dust stripping performance is very good, especially for the dust with strong moisture absorption and easy to bond and harden;
(3) Corrosion resistance, folding resistance and abrasion resistance are further improved: after the microporous film is compounded with Teflon glass fiber sintered filter material, it has better acid and alkali resistance, high temperature resistance, high humidity resistance and other characteristics;
(4) Long service life, high filtration speed: the resistance of membrane covered filter material is small and stable, and the filtration speed is fast. Resistance High temperature conveyor belt
2. High and low temperature resistance
Teflon coating can withstand 320 ° C in a short time, and can be used continuously between - 200 ° C and 260 ° C generally, with remarkable thermal stability. It can work at freezing temperature without embrittlement, and does not melt at high temperature
Electronic industry - flue, perforated plate
Home appliance industry - rice cookers, gas stoves, irons, microwave ovens, ovens
Chemical industry - pipe fittings, mixing bars, filtration equipment, chemical industry machinery containers Teflon conveyor belt
3. Corrosion resistance
Due to its strong inertia, Teflon can resist all kinds of acids, alkalis, salts and organic matter (solvents) except for some media. Teflon is almost free from any chemical attack and can protect parts from any kind of chemical corrosion.
Chemical industry -- reaction tank, storage tank, heat exchanger, stirring rod, environmental engineering wastewater and waste gas treatment equipment, pipe fittings, pipes, valves, pumps.
Electronic industry - semiconductor factory acid resistant fire smoke exhaust, printed circuit board, electroplating rack.
Electroplating industry - electroplating hanger, electroplating tank
Paper industry - transfer roller
About 30% of the steel produced every year in the world is corroded, and 10% of the steel will become useless rust. At present, the economic loss caused by corrosion in the world is up to 700 billion dollars every year. Corrosion has caused serious damage to modern industry, not only causing serious direct losses, but also the indirect losses caused by shutdown and shutdown are difficult to estimate.
4. Low friction and wear resistance
Teflon coating has low friction coefficient. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.
Machinery industry - bearing inner wall, gear machinery, automotive machinery rocker arm, mechanical small parts, mechanical bearings
Garden appliances - knives, scissors, screws
Textile printing and dyeing industry - dyeing and finishing sizing roller, non-woven roller
Automotive industry - self-lubricating parts, brackets, air conditioning compressor pistons
General industry - rubber, plastic products and other molding metal mold, EVA mold, glove mold, electric hand escalator to reduce noise and friction
