high security bolt seals

high security bolt seals
high security bolt seals

2013年8月6日星期二

Domestic and foreign enterprises launched a new sealing material

1, perfluorinated rubber FFKM
High temperature (250 ℃ ~ 320 ℃), gas and a strong resistance to chemical corrosion, good elasticity, low compression set, good elasticity, etc., to adapt to some very harsh working conditions. In the chemical, food, printing, semiconductor and other industrial applications. Parker, Evco other companies launched.
2, fluorine plastic coated rubber products
FEP (fluorinated propylene) and PFA (perfluorinated compounds) such as fluorine plastic varieties, coated rubber O-rings and rubber gaskets (eg plate heat sealing), medium resistance to improve rubber products (solvents, acids, alkalis ), Shanghai Yi Gang, EVCO, Fluorten other companies launched.
3, the unique polyurethane material
PU 92 AU 21100 good lubricity, anti-ultra-low temperature performance up to 20K (-253 ℃) resistance to ultra-low temperature conditions apply. Simrit exclusive launch.
4, polytetrafluoroethylene (PTFE) composite and modification
In order to overcome the cold flow of PTFE, defects and poor thermal conductivity, reducing wear products, the use of PTFE as a matrix and carbon fiber, polyimide (PI), polyether ether ketone (PEEK), polyphenylene sulfide (PPS) and other materials complex, development of non-oil lubricated tamper seals (piston rings, guide ring, packing ring), in the high-pressure oil-lubricated compressor widely used. Wide research and development of such Security seals seals, used in many famous compressors.
EPTFE applications, expanded polytetrafluoroethylene stretched, puffed have formed after the tough and porous, highly fibrosis new material, not only to maintain its unique chemical stability of PTFE , low friction coefficient, a broad operating temperature, and it is more so that the internal structure of micro-fibrosis products with unbelievable tenacity.

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