【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 ,取得了预期的效果更多还原

【Abstract】 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.更多还原