Basing on analogue technology, a practical arc-submerging welder control system for oil tank flat fillet seams was designed, and its working principle, circuit design and waveform testing were expounded. The application proves its applicability in severe environments and high reliability.%针对大型储油罐制造过程中数字式平角缝埋弧焊机技术不成熟的问题,运用模拟技术设计平角缝埋弧焊机自控系统,从电路设计和波形测试两方面对该系统的工作原理进行阐述.现场实际应用表明,该系统操作简单,易于维护和维修,具有高可靠性和高耐用性,同时对恶劣环境有较强的适应性.
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