可编程序控制器在等离子喷焊机上的应用

Application of Programmable Controller to the Plasma Spraying Equipment

等离子喷焊工艺程序复杂，要控制的开关量较多．现有设备多采用继电器及二极管矩阵系统进行程序控制，其结构复杂、易出故障、维修及修改程序均不便．本论文介绍了一种采用Ｃ６０Ｐ型可编程序控制器进行等离子喷焊工艺程序控制及检测电路、保护电路控制的控制系统．文章还介绍了等离子喷焊工艺流程逻辑图设计、硬件抗高频干扰系统与接口分配系统设计以及软件编程等．实践证明。

The technological process of plasma spraying is complicated and there are many switches to be controlled.The present existing plasma spraying system is not reliable and liable to troubles.The paper introduces a programmable controller of Model C60P to control the technological process of plasma spraying.It also introduces the control system of the detection circuit,the protection system.The authors designed the logic diagram of the technological process,the hardware of resisting high frequency interference,the interface distributing system and the programming software.It is proved that the improved equipment has overcome the defects of the original.