Welding equipment commonly used are AC and DC welding machines, argon arc welding machines, resistance welding machines, carbon dioxide shielded welding machines, etc. The more subdivided Welding equipment also includes arc welding, electroslag welding, brazing, friction welding, argon arc welding, Carbon dioxide gas shielded welding, etc.
What are the characteristics of Welding equipment?
What should I pay attention to when using Welding equipment?
How does Welding equipment work?
What are the characteristics of Welding equipment?
1. Welding equipment should be sturdy and durable, with stable working characteristics and good reliability.
2. Various technical characteristic indexes of Welding equipment should comply with the corresponding regulations of the machinery industry industry standard and meet the requirements of the welding process used.
3. The welding parameters of the Welding equipment can be adjusted conveniently and intuitively, and can be kept stable during a long welding process.
4. Welding equipment has better compensation ability for the fluctuation of industrial power grid.
5. Welding equipment is economical, practical and easy to maintain.
6. Under the conditions of normal use and proper maintenance, the working life of Welding equipment should be more than 10 years.
What should I pay attention to when using Welding equipment?
The technical requirements when using Welding equipment include the material properties, structural characteristics, dimensions, precision requirements and use conditions of the structure to be welded.
If the welding structure material is ordinary low carbon steel, arc welding transformer can be used; if the welding structure requirements are high and low hydrogen electrode welding is required, a DC arc welding machine should be selected.
For thick and large welding, electroslag welding machine can be used; for bar butt welding, cold pressure welding machine and resistance butt welding machine can be used. For active metals or alloys, heat-resistant alloys and corrosion-resistant alloys, inert gas shielded welders, plasma arc welders, electron beam welders, etc. can be selected according to specific conditions.
For welding structures with fixed structural forms and dimensions in large quantities, special welding machines can be used.
How does Welding equipment work?
The seam that connects the two connected bodies formed during the welding of the Welding equipment is called the weld seam. Both sides of the weld will be subjected to welding heat during welding, and the structure and properties will change. This area is called the heat-affected zone. During welding, due to different workpiece materials, welding materials, welding current, etc., overheating, embrittlement, hardening or softening may occur in the weld and heat affected zone after welding, which also reduces the performance of the weldment and deteriorates the weldability. This requires adjustment of welding conditions. Preheating at the interface of the weldment before welding, heat preservation during welding and post-weld heat treatment can improve the welding quality of the weldment.
Post time: Jul-15-2014
