用收缩法修复旧铜套上海市住宅六公司机修厂张德全在工程机械中，大多数低速、大负荷的轴，·通常用钢套作轴承。由于它的负荷大，而且与轴之间是滑动摩擦，因此容易磨损。按照设备的大修理规范，铜套属于易损件，每次修理时均要调换，这样要耗费大量的有色金属，增加修理... Repair with shrinkage of old bronze sets Shanghai residential six companies mechanical repair factory Zhang Dequan In construction machinery, most of the low-speed, heavy-duty shaft, usually steel bearings. Because of its large load, but also with the sliding friction between the shaft, so easy to wear. According to the overhaul specification of the equipment, the copper sleeve is a wearing part, which must be replaced each time it is repaired, so that it takes a lot of non-ferrous metals to increase the repair.