全世界目前有6亿多辆汽车在道路上奔驰,另外还拥有1亿多辆摩托车,当驾驶者想让车辆减速或停上时,都需要用到一种摩擦材料制品——制动蹄片。 制动蹄片质量的优劣涉及到行车安全、环境污染、维修费用及驾驶乐趣。早先,人们用过木头、皮革、麻绳和布带等作为制动用摩擦材料。这些材料都极容易磨损,需要经常更换,有些材料在急速制动时易燃,没有一种能提供高 There are over 600 million cars in the world running on the road today, plus more than 100 million motorcycles. When a driver wants to slow down or stop a vehicle, they need a friction material - brake shoes sheet. The quality of brake shoes relates to traffic safety, environmental pollution, maintenance costs and driving pleasure. Earlier, people used wood, leather, hemp and tape as brake friction materials. These materials are very easy to wear, need to be replaced frequently, some materials flammable in the rapid braking, no one can provide high