Porous elastic combined seal pad of ethylene propylene terpolymer

The utility model relates to a seal gasket, in particular to a tertiary ethylene-propylene porous elastic composite seal gasket, comprising a strip seal gasket body (1) whose section is provided with holes (2). The seal gasket is characterized by further comprising a water expansion strip (3) at the...

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Bibliographische Detailangaben
Hauptverfasser:	XUAN YUYING, XUE WEIMIN, ZHU QIUBAO, CUI YUN, PENG HUIQI, JIN XIANGSHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CYLINDERS EARTH DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GALLERIES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LARGE UNDERGROUND CHAMBERS LIGHTING MECHANICAL ENGINEERING MINING PISTONS SEALINGS SHAFTS THERMAL INSULATION IN GENERAL TUNNELS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a seal gasket, in particular to a tertiary ethylene-propylene porous elastic composite seal gasket, comprising a strip seal gasket body (1) whose section is provided with holes (2). The seal gasket is characterized by further comprising a water expansion strip (3) at the tope of the seal gasket body (1). The tertiary ethylene-propylene porous elastic composite seal gasket adopts non-toxic, harmless and non-pollution material, and has long service life. The national detection departments have processed intensifying test on the predicated service life of the product, such as that the service life of tunnel assembly type liner rubber seal gasket can reach 100 years or more, having wide application for cross-river tunnels, magnetic levitation vehicle tunnels and subways.