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我国大型球罐现场组焊长期以来采用手工焊接,费工、焊接进度慢、质量不稳定,这是多年来急待解决的问题。中国石化第三建设公司自1993年6月以来就上述问题进行了开发攻关,采用自动焊接工艺技术。1994年5月采用自动焊接工艺技术完成了镇海石化总厂6台1000m~3球罐的焊接,焊接质量一次合格率为95％以上,最高达98.7％,一级片率达84.9％。该球罐群验收投产一年来,运行稳定,质量优良。1995年3月又相继采用全位置自动焊接技术,完成苏州液化气厂两台1000m~3的球罐的焊接,焊接工期每台球罐31天,质量一次合格率达99.5％
Our country large-scale spherical tank site welding has long been using manual welding, labor, slow welding progress, the quality is unstable, which is the urgent problem to be solved over the years. The third construction company of Sinopec Corp. has conducted research and development on these issues since June 1993 and adopted the automatic welding technology. May 1994 Automated welding technology was used to complete the welding of 6 1000m ~ 3 spherical tanks in Zhenhai Petrochemical Plant. The first pass of welding quality was above 95%, the highest was 98.7% and the first stage was 84.9%. The ball tank inspection and commissioning put into operation a year, stable operation, high quality. March 1995 and they have all-position automatic welding technology to complete the Suzhou LPG plant two 1000m ~ 3 ball tank welding, welding schedule for each ball tank 31 days, the quality of a pass rate of 99.5%