High carbon semi-ceramic braking material

Abstract

The invention discloses an automobile braking material, comprising matrix 4~8%, low melting point metal 5~15%, inorganic binder 15~30%, polysiloxane 5~15%, fortifying fibre 15~35% and packing material 15~30%. The change of the friction coefficient of the braking material along with the change of the temperature approaches to zero, In addition, it also has advantages as high degree of porosity, low noise, no-harming to the mating plate and high abrasion resistance.

Description

technical field [0001] The invention relates to a motor vehicle braking material, in particular to an automobile braking material. Background technique [0002] At present, most automobile brake materials are organic brake materials, which are composed of three major parts: matrix material (adhesive), reinforcing fiber, and filler (including friction modifier). The matrix material is phenolic resin, modified phenolic resin, rubber or their mixture; the reinforcing fiber is steel fiber, copper fiber, inorganic fiber, organic fiber, mineral fiber or their mixture; the filler is barite powder, calcium carbonate, oxide Magnesium, limestone, lead sulfide, graphite, coke, zinc oxide, iron oxide, molybdenum disulfide, friction powder, tire powder, chromite powder, antimony sulfide, pyrite, etc. Organic type braking materials have the advantages of low cost, simple manufacturing process, low noise, and not easy to damage the dual, but because of their high organic content (15-25%),...

AI Technical Summary

Problems solved by technology

Since this type of brake material does not contain organic components, it has a stable high-temperature friction coefficient, small fading, and good wear resistance, but the manufacturing cost is hig

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