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本文介绍了尿素合成塔环缝深坡口焊接中应用预热焊丝埋弧焊技术的工艺要点、焊接工艺评定结果及实际应用情况。该技术很适合于类似尿素合成塔的厚壁高压容器深坡口焊接,有质量好、效率高、耗电少、省焊剂等显著优点。
This article describes the application of preheating wire submerged arc welding technology in the ring groove deep beveling of urea synthesis tower process points, welding process evaluation results and practical application. This technology is very suitable for the deep groove pressure welding of thick-walled high-pressure vessel similar to urea synthesis tower. It has the obvious advantages of good quality, high efficiency, low power consumption and provincial flux.