变壁厚弯管热推成形感应加热温度控制  

Control on the induction heating temperature for unequal bending of pipes with variable thickness in heating and pushing process

作　　者：鹿晓力[1] 路立平[1] 鹿晓阳[2] 陈世英[2] 李奎 

机构地区：[1]郑州轻工业学院电气信息工程学院,河南郑州450002 [2]山东建筑大学工程力学研究所,山东济南250101 [3]中油吉林化建设备制造公司,吉林吉林132021

出　　处：《应用科技》2007年第11期1-3,共3页Applied Science and Technology

基　　金：国家自然科学基金资助项目(10472058)

摘　　要：介绍了基于脉冲密度调制(PDM)的感应加热电源基本结构及工作原理,给出了以单片机为核心的变壁厚弯管加热温度控制系统框图、工作原理和程序流程图.实验表明,该系统温度控制范围可调,工作稳定可靠.The basic structure and working principle of an induction heating power based on pulse density modulation（PDM） were introduced. The block diagram, working principle and main program flow chart of the heating temperature control system for unequal bending of pipes with variable thickness were given. The experimental results indicate that the temperature control range is adjustable in tile system and the system is stable and reliable.

关 键 词：弯管 脉冲密度调制(PDM) 温度控制 

分 类 号：TG3[金属学及工艺—金属压力加工] TM92[电气工程—电力电子与电力传动]