The inactivation of the spindle half-coupling on the bloomer has been analysed by many facilities, such as the chemical composition analysis, the mechanical property testing, the metallographic examination.

• 利用化学分析、力学性能测定及金相检验等手段,对服役6个月即发生断裂的初轧机接轴半联轴节失效原因进行了分析。