科研之友
微信
新浪微博
Facebook
分享链接
摘要
Forty-nine-wire submerged arc welding (SAW), an innovative arc welding process, uses cable-type welding wire (CWW) as a consumable electrode. This process can overcome many of the shortcomings of single-wire SAW, including the wire being too large in diameter to twist around the plate and being difficult to align and feed. As a new welding method with high quality, high efficiency and low energy consumption, 49-wire SAW is promising for industrial applications. In this paper, 49-wire SAW (I broken vertical bar 5.4 mm) and single-wire SAW (I broken vertical bar 5.0 mm) are used to compare the deposition rate, energy consumption and processing properties of welding joints. The welding wire melting and metal deposition rates are 60% higher for 49-wire SAW than those for single-wire SAW when the same welding parameters are used. This process also requires less electric energy (30% or more) and a shorter deposition time when depositing the same weight of metal. Meanwhile, the microstructure and processing properties of the welding joints from 49-wire SAW are basically the same as those of the welding joints from single-wire SAW. The 49-wire SAW process displayed a double rotating arc, which was generated by wire feeding and melting, with revolution and rotation. Furthermore, the resistance heat generated by the wire extension of 49-wire SAW was 1.8 times higher than that generated by the wire extension of single-wire SAW.
- 出版日期2018-1
- 单位江苏科技大学
