The selection of welding equipment is an important aspect of formulating welding processes, involving many factors, but attention should be paid to the following aspects.
1. Technical requirements for welded structures
The technical requirements for the welded structure include the material characteristics, structural characteristics, dimensions, accuracy requirements, and usage conditions of the welded structure.
If the welding structure material is ordinary low-carbon steel, an arc welding transformer can be selected; If the welding structure requires high requirements and low hydrogen type welding rods are required for welding, a DC arc welding machine should be selected.
If welding thick and large parts, an electric slag welding machine can be used; If it is a bar butt joint, cold press welding machine and resistance butt welding machine can be selected. For active metals or alloys, heat-resistant alloys, and corrosion-resistant alloys, depending on the specific situation, inert gas shielded welding machines, plasma arc welding machines, electron beam welding machines, etc. can be selected.
For welding structures with fixed structural forms and sizes in large quantities, specialized welding machines can be used.