微机控制STT逆变焊机的研制  

Microcomputer controlled STT inverter welding power source

作　　者：耿传勇 刘加友 尹海[1,2,3] 蔡鸣华[1,2,3] 

机构地区：[1]济南山东建筑工程学院 [2]山东五莲县电业局 [3]济南山东工业大学

出　　处：《焊接学报》1998年第S1期68-74,共7页Transactions of The China Welding Institution

摘　　要：分析了以往用于克服ＣＯ２气保焊缺陷的方法的不足之处，在此基础上提出采用熔滴表面张力过渡（Ｓｕｒｆａｃｅ－Ｔｅｎｓｉｏｎ－Ｔｒａｎｓｆｅｒ）（简称ＳＴＴ）方法来改善焊接效果并对采用该方法研制的ＮＢＣ－４００ＧＢＴ逆变焊机作了简要介绍，解决了全桥电路的高频变压器偏磁问题，通过试验得出最佳电流波形。The method of surface-tention-transfer of droplets of electrodes is put up on the basis of analvzing the shortages of the old methods used to overcome CO 2 welding drawback and a new type of microcomputer controlled NBC-400IGBT inverter power source is developed by this method in the paper. The magnetic bias in high frequency transformer of full bridge inverter is overcome successfully.Experimental results of the best current waves are given.

关 键 词：表面张力 逆变焊机 微机控制 

分 类 号：TG434[金属学及工艺—焊接] TG434