[日本]在东日本旅客运输铁道股份有限公司管辖的东京交通圈的新系列车辆中,通过测定车轮踏面的形状,来调查车轮踏面的磨耗特性,结果发现踏面制动闸瓦种类不同,踏面磨耗的趋势也有所不同(见图1)。即:使用烧结合金闸瓦时,踏面磨耗量大,且呈下凹磨耗趋势,而轮缘磨耗少;使用合成闸? [Japan] In the new series of vehicles in the Tokyo traffic circle governed by the East Japan Passenger Transport Railway Co., Ltd., the wear characteristics of the wheel treads were investigated by measuring the shape of the wheel treads. As a result, it was found that the tread brake wear types were different and tread wear The trend is also different (see Figure 1). That is: the use of sintered alloy brake shoe, the tread wear large, and the tendency of concave wear, and wheel wear less; use of synthetic brake?