电弧螺柱焊电源的发展方向探索——超级电容器在螺柱焊机中的应用

Study on development of stud arc welding power source

比较了三种螺柱焊接电源在螺柱直径φ≤10 mm植焊时焊机输入视在功率的不同;分析了电容储能电源节能的原因,以及市售电解电容器的技术参数和放电过程不可控限制了植焊大直径螺柱的可行性;介绍了国内超级电容器在螺柱焊机中的应用实例;试验研究以超级电容器作为储能模块时焊接燃弧过程的控制方法,得到了进行大直径(φ≥10 mm)螺柱焊的可行结论,显示了超级电容器在螺柱焊机中应用前景。

This paper compares the difference of the output of three kinds of studs welding power source,which means transfer,inverter and capacitor,on condition that stud diameter is equal or less than 10 mm.We analyze the reason why the reserved capacitance power supply is energy efficient and explain that the possibility of welding big diameter stud is limited, because that the technical parameters and discharge process of merchant electrolytic capacitor can＇t be controlled.Some examples of how the super capacitor can be applide to stud welder are introduced.We research the methods of how to control the burning process of the welding electronic arc,when the super capacitor is used as saving module by doing some experiments,then come to a conclusion that the welding of large diameter （equal or greater than 16 mm） stud is possible,it shows a prospect that the super capacitor can be applied to the stud welder.