胜利油田油建一部金属结构厂自行研制成功的内环缝自动焊接装置投产以来,焊接了137台压力容器的内环缝,焊接质量好,焊接效率高,收到了明显的经济效益和社会效益。油田科学技术委员会于1987年9月20日组织了油田内外30多位专家对该装置进行了技术鉴定,到会的专家对研究总结报告等技术资料和焊接装置、焊件进行了认真的审查和评议,一致认为: 1.内环缝自动焊接装置是筒体内环缝自动焊的专用设备,经一年多大量施焊考验证 Shengli Oilfield Oil built a metal structure plant self-developed seam ring automatic welding device put into operation since the 137 pressure vessels welded inner ring seam, good welding quality, high welding efficiency, has received significant economic and social benefits . Oilfield Science and Technology Commission on September 20, 1987 organized more than 30 experts inside and outside the oil field of the device for technical appraisal, the experts to the study summary report and other technical information and welding devices, weldments were carefully reviewed and Comments, agreed that: 1. The inner ring seam automatic welding device is the cylinder ring seam automatic welding equipment, after a year more than a large number of welding test certificate