COMPOSITION MATERIAL Russian patent published in 1995 - IPC

FIELD: machine engineering. SUBSTANCE: composition material has by the first variant, % : suspension polytetrafluoroethylene 70-99.2 and zircon concentrate 0.8-30.0, and by the second variant - suspension polytetrafluoroethylene 60-99.2 and a mixture of zircon concentrate with other inorganic filler at their mass ratio (0.8-35):(5-20), respectively, 8-40. Material properties: stretching strength is 90-305 kgf/cm², relative rupture elongation is 130-380% , wear intensity at working with steel contra-body pair (1.4-5.2) x 10^-3 g/h. EFFECT: enhanced quality of material. 3 cl, 1 tbl