起重机械上的牵引件属于最重要的构件之列。但是当前在大多数情况下采用钢丝绳作为牵引件。钢丝绳的寿命短,制造费工,对于使用条件敏感,不能精确计算,并且不能在使用过程中应用自动探伤方法。钢丝绳大多数缺点的主要原因在于它们是由许多根细钢丝所组成的。 Traction on lifting machinery is among the most important components. However, wire rope is currently used as a traction part in most cases. Wire rope life is short, manufacturing labor, sensitive to the conditions of use, can not be accurately calculated, and can not be used in the process of automatic detection methods. The main reason for the most disadvantages of wire ropes is that they consist of many fine steel wires.