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药芯焊丝CO2焊在我国船舶制造企业中大量应用,其焊接过程的稳定性评价与监控具有重要意义。通过对准1.4 mm药芯焊丝CO2焊三种不同焊接规范试验和过程稳定性试验,提取了短路过渡频率、断弧频率和瞬时短路频率作为评价其焊接过程稳定性的量化指标;搭建了基于单片机和无线Zigbee技术的药芯焊丝CO2焊远程监测系统,传输焊接过程量化特征信息,从而实现对其焊接过程的远程监测。通过试验证明,该系统具有良好的可扩展性,并能满足造船、冶金机械等行业实际焊接生产的质量监测和工艺评价需求。
Cored wire CO2 welding in China’s shipbuilding enterprises in a large number of applications, the stability of the welding process evaluation and monitoring of great significance. The 1.4mm flux-cored wire CO2 welding was tested on three different welding specifications and process stability tests, and the short-circuit transition frequency, arc breaking frequency and instantaneous short-circuit frequency were taken as the quantitative indexes to evaluate the stability of the welding process. And wireless Zigbee cored wire CO2 welding remote monitoring system, transmission of welding process quantitative characteristics of information, in order to achieve its remote monitoring of the welding process. The test proves that the system has good scalability and can meet the quality monitoring and process evaluation requirements of the actual welding production in shipbuilding, metallurgical machinery and other industries.