Precision cold drawn tubes require strict control of requirements and parameters during the welding process, which greatly impacts the stability of subsequent engineering. The high-pressure alloy tubes are horizontally fixed, with short-arc welding, the welding torch as vertical as possible to the workpiece surface, which is conducive to protecting the argon's shielding of the welding pool. The welding torch and wire can gently sway horizontally to ensure penetration on both sides of the slope, while controlling the temperature of the molten pool to prevent welding and spatter defects. At the joint, precision cold drawn tubes use an angle grinder to polish the arc pits, removing welding defects such as arc cracks and holes, and then continue with arc welding.

When using arc welding, it is recommended to employ a short arc technique, as excessive heat input should be avoided. Long arc welding not only leads to unstable arc burning, deep penetration, significant metal splatter, and intensified combustion of alloy elements, but also often results in defects such as undercut and incomplete welding. For welding high-pressure alloy pipes, the small crescent transport method can be used, with a pause of 0.5 to 1 second on either side of the groove. Weld slag between layers must be completely removed. If welding defects such as porosity are detected, they should be removed using an angle grinder. It is crucial to fill the arc pit completely at the end of the welding to prevent cracks from forming. Precision cold drawn tubes