三丝埋弧焊技术在厚板焊接中的应用

Application of Three Wires Submerged Arc Welding Technology in Thick Plate Welding

基于国内厚钢板焊接工程大量出现,三丝埋弧焊技术逐渐发展。介绍了其应用于厚板焊接的工艺技术和特点,并通过试验进行工艺评定。试验证明,采用合理的电源种类组合、焊丝排列工艺和合适的焊接材料,大线能量的三丝埋弧焊焊缝质量稳定,焊接接头的强度和韧性可以满足母材的匹配要求,可达到厚板高效、高质量的焊接要求。

With popularization of thick plate welding projects in China, three wires submerged arc welding technology has been developing. Its technology and characteristics are introduced in this paper. Further, technology evaluation is done through test. Test results prove that on the premise of adopting reasonable power supply combination, welding wires arrangement process and appropriate welding materials, three wires submerged arc welding technology has high linear energy and stable welding seam quality, welding joints strength and toughness can match with base material, and thick plates are welded with high efficiency and quality.