Abstract
The work is devoted to energy saving during arc manual welding operations. Power sources for arc manual welding are rectifiers with slow or steeply falling current-voltage characteristics. The paper considers two ways of energy saving during arc welding operations. The first way is to increase the efficiency of welding by replacing the ballast rheostat with a special electronic device that regulates the welding current instead of the ballast rheostat. The second way is to increase the efficiency of the welding equipment by replacing a traditional one-bridge rectifier with the two-bridge economical rectifier. An approximate calculation of the annual economic effect from the replacement of a ballast rheostat by the electronic regulating device is given on the example of welding operations in a typical assembly shop.
Highlights
IntroductionEnergy saving is one of the priority tasks. This is due to the shortage of basic energy resources, the growing cost of their extraction, as well as to global environmental problems [1,2,3]
At present, energy saving is one of the priority tasks
Energy saving is one of the priority tasks. This is due to the shortage of basic energy resources, the growing cost of their extraction, as well as to global environmental problems [1,2,3]
Summary
Energy saving is one of the priority tasks. This is due to the shortage of basic energy resources, the growing cost of their extraction, as well as to global environmental problems [1,2,3]. This paper is devoted to energy saving during welding operations, which use manual arc welding performed by welding rectifiers. These rectifiers are reliable, relatively cheap apparatus that provide high quality welding. The first way is to replace the ballast rheostat in welding equipment with a special electronic device (chopper), regulating welding current [18], to improve the efficiency of welding operations. This solution increases the cost of the welding apparatus. The second way is to increase the efficiency of the rectifier due to using special electric circuit solution (double-bridge rectifier) instead of traditional solution (single-bridge rectifier)
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