kunststoffmischung for bremskloetze, brake pads, bremsbelaege etc. and method for the production of brake pads, bremskloetzen and bremsbelaegen

摘要

Brake shoe compositions moulded or machined with scooped air passages to assist cooling, esp. where compositions are based on 18.35% novolak (phenolic) resin/1-3% hexamethylene tetramine/20-50% asbestos flocking/0.16% kaolin/5-20% granulated rubber/0-41% carbon (graphite). Wear resistance is 400-600% better than cast iron, the coefficient of friction remains at 0.21-0.25 at all speeds, not moisture sensitive. Particular compositions quoted for (1) trains; (2) trams; (3) automobile brakes.