Extremely good material for use as seals and rings in the reciprocating compressor industry.
Carbon Filled polymer PTFE was developed for its mechanical properties.
Data on this page is based on 25% carbon-filled PTFE.
Different filler percentages will change the properties. (contact us for details) The two basic materials used in these compounds, by themselves, are very questionable. polymer® has good frictional properties including low wear rates and good elasticity. The carbon filler is brittle and has low wear properties. Both fail at high loads and increased velocities.
When both elements are formulated and properly blended together, they become an extremely good material for use as seals and rings in the reciprocating compressor industry. The properties increase several hundred times. Wear resistance is changed dramatically compared to virgin polymer®. The type and percentage of carbon is critical to material performance. Carbon filled has a higher percentage of filler than any other polymer® blend. Therefore the two materials must be similiar in size to prevent voids in the molded billet. For optimum wear properties, the filler percentage is also important. Lower percentages are easier to machine but do not perform as well in service. AVA56 polymer ® material, is designed for optimum wear properties in all suitable applications.
The molding cycle is also important to provide proper pysical properties. At higher molding pressures the material has higher density and more filler is required. Not all carbon filled polymer® is of the same quality. *Tests have shown the material will hold up to 900 fpm and 2000 psi for unlubricated applications and up to 3500 PSI in lubricated service.
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Post time: Aug-24-2019