Carbon deposit friction lining material

F - Mech Eng,Light,Heat,Weapons – 16 – D

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Details

F16D 69/02 (2006.01) C04B 30/02 (2006.01) C04B 41/52 (2006.01)

Patent

CA 2264164

The present invention relates to a friction material comprising a fibrous base material primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of a mixture of carbon particles and at least one retention aid coated on at least one surface of the primary layer. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having high heat resistance and high friction durability characteristics.

La présente invention concerne un matériau de friction comprenant une couche primaire de matériau de base fibreux constitué de fibres d'aramides moins fibrillées, du graphite synthétique et au moins une matière de charge, ainsi qu'une couche secondaire constituée d'un mélange de particules de carbone et d'au moins un auxiliaire de rétention revêtu sur au moins une surface de la couche primaire. Dans certains modes de réalisation, on imprègne le matériau de base fibreux d'une résine phénolique ou à base phénolique, comprenant, par exemple, un mélange d'une résine phénolique et d'une résine silicone afin de former un matériau de friction présentant des caractéristiques de résistance thermique et de durabilité de friction élevées.

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