Selection of specific blowing mode of shielding gas
1. Straight weld
As shown in Figure 3, the weld shape of the product is linear, and the joint form can be butt joint, lap joint, internal corner joint or overlap welding joint. It is better for this type of product to adopt the side shaft side blowing protective gas method as shown in Figure 1.
Figure 3 Straight weld
2. Plane closed figure weld
As shown in Figure 4, the weld shape of the product is closed shape such as plane circular shape, plane multilateral shape, plane multi-section line shape, etc. the joint forms are butt joint, lap joint, overlap joint, etc. all of the products of this type are in the coaxial shielding gas mode shown in Fig.
Figure 4 Plane closed figure weld
The selection of shielding gas has a direct impact on the quality, efficiency and cost of welding production. However, due to the diversity of welding materials, the selection of welding gas is also more complex in the actual welding process. It is necessary to comprehensively consider the welding material, welding method, welding position and required welding effect. Only through the welding test can the more suitable welding gas be selected, Achieve better welding results.
