锅筒环缝石棉衬垫法埋弧自动焊焊接工艺

Asbestos mat welding technology of automatic submerged-arc welding for boiler's canister ring-seam

在锅炉的焊接生产过程中,埋弧自动焊以较高的焊接生产效率和稳定的焊接质量,得到了广泛的应用。在锅炉锅筒的焊接生产中,对手工电弧焊工艺和埋弧自动焊工艺进行了对比分析;在传统的埋弧焊衬垫工艺基础上,提出了锅筒环缝的石棉衬垫法埋弧自动焊焊接工艺,并进行了焊接坡口的优化设计,设计了简易而实用的衬垫工装;在进行焊接工艺评定后,成功地应用于焊接生产,提高了生产效率,保证了焊接质量。

In the production process of boiler welding,the technology of submerged-arc welding is used widely in high efficiency and steady welding quality.This article introduces a welding technology of submerged-arc welding in boiler＇s canister welding production line by comparing the technology of shielded metal welding and automatic submerged-arc welding.Based on the traditional submerged-arc welding, it introduces the asbestos mat welding technology of automatic submerged-arc welding ,which passed the weld craft assess and applied in welding production successfully.