【摘要】 介绍了在直进式拉丝机上采用的ＰＣ闭环控制变频调速系统．通过建立拉拔过程的数学模型获得了系统的控制规律，实现了生产过程的自动控制．更多还原

【Abstract】 Introduce the PC close-loop control system use frequency converter on straight-line drawing machine.The control law of system has been gained through building up mathematical model in drawing process,the automatic control of production has been achieved.更多还原