中频热推弯管工艺参数自动控制  

Autocontrol of parameters in the tube-bending process by medium frequency induction heating

作　　者：路立平[1] 鹿晓力[1] 鹿晓阳[2] 杨乐宇[2] 韩善灵[2] 

机构地区：[1]郑州轻工业学院自动控制系,河南郑州450002 [2]山东建筑工程学院工程结构现代分析与设计研究所,山东济南250014

出　　处：《山东建筑工程学院学报》2001年第2期1-4,共4页Journal of Shandong Institute of Architecture and Engineering

基　　金：国家自然科学基金项目 ( 19972 0 40 );山东省自然科学基金重点项目 (Z2 0 0 0A0 1)

摘　　要：提出了中频热推弯管工艺加热温度与推制速度两个工艺参数自动控制方案。该方案采用两个单片机协同完成管坯推制成形过程中 ,感应加热温度检测和中频电源整流逆变控制 ;用一个单片机完成热推弯管机液压系统推制速度控制。从而使这两个工艺参数在给定的优化域内自动实现合理匹配 ,工艺过程实现自动控制。此方案经生产实践初步检验是可行的 。A design of autocontrol of heating temperature and pushing speed is presented in the process of tube bending by medium frequency induction heating. In this design, the heating temperature detection and the rectification and inversion of the medium frequency power are controlled by two microcontrollers during the forming process of elbow, and the control of pushing speed of the hydraulic system is achieved by an additional microcontroller. By the technique above, the two processing parameters match appropriately within given optimized zone, and the autocontrol of the whole process is achieved.

关 键 词：液压系统 中频热推弯管 加热温度 自动控制 

分 类 号：TH137[机械工程—机械制造及自动化]