The working conditions and requests of the roll used in high-speed wire pre -finishing mill are introduced.
介绍了高线须精轧机使用的轧辊（辊环）的工作条件和要求。
Working condition of roller rings used in finishing roll sector or pre-finishing roll sector of high speed line or rod rolling mill production line is extremely vile.
高速线、棒材热轧生产线的预精轧段和精轧段用轧辊的工作条件十分恶劣。
In this paper, the critical speed of the rotor system on new model high speed vertical im-pact mill is analysed with Transfer Matrix Method and the working speed of the rotor system is designed.
利用传递矩阵方法，对立式高速冲击粉碎机转子系统进行了临界转速分析；并对其工作转速进行了设计。
In this paper, the critical speed of the rotor system on new model high speed vertical im-pact mill is analysed with Transfer Matrix Method and the working speed of the rotor system is designed.
利用传递矩阵方法，对立式高速冲击粉碎机转子系统进行了临界转速分析；并对其工作转速进行了设计。
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