双热丝MAG焊接设备及工艺
发布时间：2018-10-16 22:35
【摘要】：双热丝MAG焊接技术(Double Hot Wires MAG Welding Technology)是一种高效焊接方法。在焊接过程中有一根主焊丝和两根热丝。主焊丝和母材之间产生主弧,热丝加热电源的两个输出端子分别与两根焊丝连接,经焊接熔池构成闭合回路。该工艺采用电阻热预热焊丝,利用熔池的能量最终熔化焊丝,在增大熔敷效率的同时,有效降低焊接热输入。研究热丝电流I_(res)对焊丝熔敷速率的影响规律,并进行厚板的多层摆动焊接。结果表明,随着I_(res)的增大,焊丝熔化速度增大,并且每一个热丝电流对应一个最佳热丝送丝速度范围,最大熔敷速度可达25 kg/h以上,有效提高了焊接效率。
[Abstract]:Double hot wire MAG welding technology (Double Hot Wires MAG Welding Technology) is an efficient welding method. There is one main wire and two hot wires during the welding process. The main arc is produced between the main welding wire and the base metal. The two output terminals of the hot wire heating power supply are respectively connected with the two welding wires, and the closed loop is formed by the welding pool. In this process, the welding wire is preheated by resistance, and the welding wire is melted by the energy of the weld pool. The welding heat input is reduced effectively while the deposition efficiency is increased. The influence of hot wire current I _ (res) on the deposition rate of welding wire was studied and the multi-layer swinging welding of thick plate was carried out. The results show that with the increase of I _ (res), the wire melting rate increases, and each hot wire current corresponds to an optimum wire feeding speed range, and the maximum deposition speed can reach more than 25 kg/h, which effectively improves the welding efficiency.
【作者单位】： 北京工业大学机械工程与应用电子技术学院;
【分类号】：TG444.7
本文编号：2275839
[Abstract]:Double hot wire MAG welding technology (Double Hot Wires MAG Welding Technology) is an efficient welding method. There is one main wire and two hot wires during the welding process. The main arc is produced between the main welding wire and the base metal. The two output terminals of the hot wire heating power supply are respectively connected with the two welding wires, and the closed loop is formed by the welding pool. In this process, the welding wire is preheated by resistance, and the welding wire is melted by the energy of the weld pool. The welding heat input is reduced effectively while the deposition efficiency is increased. The influence of hot wire current I _ (res) on the deposition rate of welding wire was studied and the multi-layer swinging welding of thick plate was carried out. The results show that with the increase of I _ (res), the wire melting rate increases, and each hot wire current corresponds to an optimum wire feeding speed range, and the maximum deposition speed can reach more than 25 kg/h, which effectively improves the welding efficiency.
【作者单位】： 北京工业大学机械工程与应用电子技术学院;
【分类号】：TG444.7
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