二氧化碳气体保护焊接方案中英文().docVIP

Content 目录 1.Project overview工程概况 1 2.Fabrication reference编制依据 1 3.Construction features施工特点 1 4.Construction preparation施工准备 1 4.1.Preparation before welding焊前准备 1 4.2.Construction working conditions preparation施工作业条件准备 2 5.Construction process施工工艺 2 5.1．Wedling process焊接工艺 2 5.2．Root cleanness process清根工艺 3 6.Construction attentions施工注意事项 4 7.Safety housekeeping安全文明施工 4 7.1.Safety assurance measures安全保证措施 4 7.2.Housekeeping文明施工 4 1.Project overview工程概况 Completed, in order to efficiently shelf life for the engineering characteristics of large diameter carbon steel pipeline welding tasks, with carbon dioxide gas shielded welding the bassoon weld when needed. 针对本工程的碳钢管线直径大的特点，为了高效保质完成焊接任务，焊接大管焊缝时需要用二氧化碳气体进行保护焊接。 2.Fabrication reference 编制依据 1、The construction contract and the owners of the project construction plans 本工程施工合同及业主提供的本工程施工图； 2、The projects audited, approved the construction organization design ; 本工程经审核、批准的《施工组织设计》； 3、《The carbon dioxide gas shielded welding wire》GB8110—2008《二氧化碳气体保护焊用焊丝》GB8110—2008 4、《Specification for welding of steel structure buildings》 JGJ81—2002 《建筑钢结构焊接技术规程》JGJ81—2002 5、《Gas welding, manual arc welding and gas-shielded arc welding weld groove basic form and size》GB985.1-2008. 《气焊、手工电弧焊及气体保护焊焊缝坡口的基本形式与尺寸》GB985.1-2008. 6、《Code for acceptance of construction quality of steel structures》GB50205—2001 《钢结构工程施工质量验收规范》GB50205—2001 3.Construction features施工特点 1、Weld appearance, weld molding no longer polished, uniform weld geometry.焊缝成型美观，焊缝焊接成型后无需再打磨处理，焊缝几何尺寸均匀一致。 2、Less weld spatter, flux-cored arc stabilizer added, stable arc burning droplet was drop wise even excessive when welding spatter few small particles and splashing, cooling faster, easier to clear. 焊接飞溅少，药芯焊丝在其中加入了稳弧剂，电弧燃烧稳定，熔滴呈滴状均匀过度，故焊接时飞溅很少，且飞溅颗粒细小，冷却速度快，清除较容易。 3、Weld shrinkage deformation is small, due to the welding heat input focus, small heat-affected zone, weld shrinkage deformation is small, small welding residual stress. 焊缝收缩变形小，由于其焊接热量输入集中，热影响区小，因此焊接收缩变形小，焊接残余应力小。 4