铜门焊接质量的好坏直接影响装配质量，所以在安装构件时，需要严格控制焊接处的间隙，错边等误差，经安装装配后的焊接节点需要经过相关人员的检查并且检查合格后才能交给焊工施焊。

The quality of copper door welding directly affects the assembly quality. Therefore, when installing components, it is necessary to strictly control the gaps, misalignment and other errors at the welding points. After installation and assembly, the welding nodes need to be inspected by relevant personnel and qualified before they can be handed over to welders for welding.

焊接前需要做好充足的准备工作。装配好的焊接节点经过专门人员的检查后交于焊工施焊；检查焊接位置的脚手搭设是否安心可靠；清理焊接坡口区，将经烘焙的焊条用保温筒带现场焊接地点。为避免焊接变形，焊接时采用对称焊接(包含对焊、立焊、斜焊)；焊接过程中逐道焊缝清渣，除飞溅物，发现缺陷需要及时用角向砂轮打磨，除掉缺陷；焊接工作结束，将焊缝区及焊接工作位置场地清理干净，转移到下一焊接节点。

Adequate preparation is required before welding. The assembled welding nodes are inspected by specialized personnel and handed over to welders for welding; Check if the scaffolding at the welding position is secure and reliable; Clean the welding groove area and bring the baked welding rods to the on-site welding site using insulation drums. To avoid welding deformation, symmetrical welding (including butt welding, vertical welding, and oblique welding) is used during welding; During the welding process, slag should be removed from each weld seam to remove splashes. If defects are found, they should be promptly polished with an angular grinding wheel to remove them; After the welding work is completed, clean the weld area and welding work site, and transfer to the next welding node.

焊后的检查工作也要做到位。待焊缝冷却后，进行焊缝外观检查。焊缝中不得有裂缝出现，焊缝金属与母材间要完全熔合，所有破口都应当被填满，焊缝不应溢流。

The inspection work after welding should also be done properly. After the weld seam cools down, perform a visual inspection of the weld seam. There should be no cracks in the weld seam, the weld metal should be completely fused with the base material, all breaks should be filled, and the weld seam should not overflow.

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