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系统地分析刚性引锭杆的变形产生的原因 ,从刚性引锭杆的设计、制造、使用三方面 ,提出预防的措施 ,延长刚性引锭杆的使用寿命
The causes of deformation of rigid dummy bar are systematically analyzed. Preventive measures are proposed from the aspects of design, manufacture and use of rigid dummy bar to prolong the service life of rigid dummy bar