Precautions for processing and welding of grid frame accessories:
Precautions for processing and welding of grid frame accessories:
Attention should be paid to the processing and welding process of the grid components. Before welding, preparations should be made for the processing and welding materials of the grid components, and attention should be paid to the welding mechanism and the preparation amount of welding wires and flux. To do a good job in baking the welding strips, they should be baked according to the quality requirements of the grid project, and after baking, they should be placed in an insulation box. Preheating before welding can reduce the cooling rate of the heating zone, avoid welding delays and cracks, and affect the welding effect.
It is necessary to follow the welding sequence to maintain a small weld gap in the processing and welding engineering of grid components, and achieve symmetrical welding, longitudinal and transverse welding. It is necessary to perform post weld heat treatment to avoid cracks. The insulation time is generally determined based on the thickness of the plate and is 1 hour per 25mm of plate thickness.