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What needs to be selected in PTFE packing products

What needs to be selected in PTFE packing products

  • Clasificación:Industry News
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  • Tiempo de emisión:2022-01-18
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What needs to be selected in PTFE packing products

[Descripción resumida]Among PTFE packing products, PTFE packing is one of the products with the largest output. In foreign countries, PTFE packing is generally produced by PTFE resin manufacturers, such as HosTaflonTF4000, HosTaflonTF3000 and HosTaflon2000 series of Hoechst Company in Germany.

  • Clasificación:Industry News
  • Autor:
  • Fuente:
  • Tiempo de emisión:2022-01-18
  • Visitas:0
Detalles

Among PTFE packing products, PTFE packing is one of the products with the largest output. In foreign countries, PTFE packing is generally produced by PTFE resin manufacturers, such as HosTaflonTF4000, HosTaflonTF3000 and HosTaflon2000 series of Hoechst Company in Germany. However, due to the backward production process of PTFE resin in China, the current domestic PTFE filling process is completed in the product processing plant. In order to improve the pressure resistance, wear resistance, cold flow resistance, heat resistance and dimensional stability of PTFE, inorganic, metal and polymer fillers are added to the PTFE resin. Compared with pure PTFE, the pressure resistance of the filling product is increased by 5-10 times, the wear resistance is increased by 1000 times, the linear expansion coefficient is reduced by 80%, the thermal conductivity is increased by 5 times, and the volume resistance and surface resistance are reduced. The machinery industry is used for oil-free lubricating bearings, bearing bushings, piston rings, machine tool guide rails, etc. In recent years, foreign countries have used filled PTFE as bushings for pipes, valves, pumps, etc. field of application. Commonly used fillers according to these requirements are: glass fiber, carbon fiber, graphite, quartz sand, molybdenum disulfide, amorphous carbon, calcium fluoride, copper powder, ceramics, polyimide, polyphenylene, polyparaben, etc. .

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