焊接机器人在液化气瓶生产上的应用研究

Study on Application of Welding Robot in Production of Liquefied Gas Cylinder

以15 kg液化气瓶的机器人焊接为研究对象,分析了气压状态下瓶体的二向应力状态,设计了合理的瓶体焊缝。结合瓶体的使用力学性能要求,提出以16Mn R作为瓶体材料,选择合理的焊接工艺参数,采用FANUC M10i A弧焊机器人进行了瓶体的自动焊接。对瓶体焊缝取样进行了拉伸性能检测与显微组织分析。结果表明,焊缝性能满足要求,组织稳定。生产实践证明,焊接机器人的应用提高了瓶体的焊接质量和生产效率。该技术可以应用到类似压力容器的生产改进中,有一定的行业推广价值。

Taking the robot welding of liquefied gas cylinder as the research object, the two-direction stress state of the cylinder body under pressure condition was analyzed, and reasonable welding seam of the cylinder body was designed. Combined with the mechanical properties requirements of the cylinder body, 16MnR was chosen as the cylinder material, and reasonable welding parameters were selected, the automatic welding of cylinder body was carried out by using FANUC M10iA are welding robot. The mechanical properties and the microstructure of the cylinder body＇s weld were tested and analyzed. The results show that the weld performance meets the requirements, and the microstructure is excellent. The practice proves that the application of welding robot improves the welding quality and production efficiency of the cylinder body. The technique can be applied to the production improvement of similar pressure vessel, and it has certain industry promotion value.