二氧化碳焊接弧压智能控制器

研制了基于短路过渡过程评价的二氧化碳弧焊电弧电压自寻优微机智能控制器，该智能控制器根据焊接电流的设定值对电弧电压进行自寻优调节，使焊接参数达到最佳配合，该控制器主要由弧压模糊控制模块与一元化推荐表组成，弧压模糊控制模块以二氧化碳弧焊过程中的熔滴短路过渡频率、燃弧时间与短路时间的比值，以及短路周期标准差等特征参数的综合值作为判据进行弧压寻优，实验表明，此智能控制器能显著改善二氧化碳焊机的性能，同时也降低了焊接飞溅。

Arc Voltage Intelligent Controller of Carbon Dioxide Arc Welding Based onEvaluation of Short-Circuiting Transfer Process

A microcomputer intelligent controller has been developed for self optimizing of the arc voltage in carbon dioxide welding process. The controller can automatically adjust the arc voltage in accordance with the set welding current value. The major models in the controller consist of the arc voltage fuzzy control models and the one knob recommending table. The arc voltage fuzzy control model takes the synthetic evaluation value of characteristic parameters in the welding process (the short circuiting transfer frequency, the ratio of arc duration to short circuiting duration, and the short circuiting period standard deviation) as a basis to optimize the arc voltage. The test results show that the developed self optimizing controller obviously improves the performance of carbon dioxide welding machine and reduces welding spatter.