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选用PbS红外探测器作为熔透传感器以测量焊缝背面受热区光电熔透信号,采用固定点控制焊接电流脉冲宽度的控制方案,组成钢和铝TIG焊熔透适应系统,这种控制系统能够获得均匀熔透的薄板TIG焊焊缝。
The PbS infrared detector is used as the penetration sensor to measure the photoelectric penetration signal of the hot zone on the back of the weld seam. The control scheme of fixed point control of the pulse width of the welding current is adopted to form the penetration system of steel and aluminum TIG welding. The control system can obtain Evenly penetrated sheet TIG weld.