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本文以大量薄板ＴＩＧ焊实验建立起的数学模型为基础，成功研制了８０９８单片微机控制的有效热功率恒定ＴＩＧ电源系统。该电源系统能输出斜率角α＝７０°～１４５°范围内的任意直线型外特性。对于不同材料、不同厚度的薄板，在预实验的基础上，电源可以通过输出最佳外特性，在弧长变化５ｍｍ、网压波动±１０％的情况下，有效热功率恒定，焊缝宽度基本不变。
Based on the mathematic model of a large number of thin-plate TIG welding experiments, this paper successfully developed the 8098 single-chip computer-controlled effective thermal power constant TIG power system. The power system can output any linear external characteristic with the slope angle α = 70 ° ~ 145 °. For different materials and different thicknesses, on the basis of pre-experiment, the power supply can output the best external characteristics. Under the circumstance that the variation of arc length is 5mm and the variation of net voltage is ± 10%, the effective thermal power is constant. constant.