Mini-MPM限動芯棒連軋管機力能參數的計算及分析

Calculation and Analysis of Mechanical Parameters of Mini-MPM Retained Mandrel Pipe Mill

摘要: 在研究限動芯棒連軋管機的基礎上,歸納整理了Mini-MPM限動芯棒連軋管機力能參數的計算公式和框圖。再采用該計算公式和框圖進行編程計算,分析連軋管機入口毛管壁厚、芯棒限動速度和軋輥直徑對力能參數的影響。計算結果表明:毛管壁厚對連軋管機第1機架軋制力的影響明顯;芯棒限動速度對連軋管機力能參數影響較小;軋輥直徑對軋制力有較明顯的影響。提出了改善連軋管機力能參數的途徑。

Abstract: Based on the result of studies of the retained mandrel pipe mill, a set of calculation formulas and flow chart for the mechanical parameters of the Mini-MPM are deduced and summarized in this paper. Then a program is composed with these formulas and flow chart, based on which an analysis is conducted on the effects upon the mechanical parameters by such elements as shell wall thickness, mandrel retaining speed and roll diameter. The results show that the shell wall thickness obviously affects the rolling force of the first stand of the mill; the man- drel speed produces just slight influence on the mechanical data, while the roll diameter considerably works on the rolling force. Finally, the paper presents certain approaches to ameliorate the mechanical parameters of the Mini-MPM retained mandrel pipe mill.