For some current grid steel structure buildings, special attention needs to be paid to the processing of various components of the grid fittings. The quality and welding process of different welding balls have strict requirements. Therefore, during the steel pipe construction process, whether it is the appearance of the product or the welding process, it is necessary to strictly follow the regulations.

Generally, the width of the weld seam for welding balls should be kept between 22-25mm, with a remaining height of about 1-3mm. It is required that there are no welding defects such as porosity or gaps. At the same time, after inspection, the weld seam needs to undergo ultrasonic inspection to ensure the quality level during the construction process. If any quality problems are found, they can be solved in a short time to ensure that the quality of the welding ball does not affect the use of the project.