Structural Features of Welders There are three kinds of welding apparatuses used to perform arc welding with covered electrodes. These are rectifier transformers, AC transformers and inverters. AC transformers are the cheapest devices of the kind. Structurally they consist of a power transformer and a choke. The welding current is regulated rather smoothly based on the principle applied in laboratory autotransformers. Transformer welding equipment weighs quite a lot, primarily due to the weight of the transformer itself. Besides, they are inferior to other welding devices in a number of parameters, like current efficiency and welding quality. Rectification devices operate off of direct current, and can be used with carbon and stainless steels. These devices also contain a transformer, a choke, and powerful diode or thyristor DC rectifiers. The only drawback here is that part of the power is lost. The key advantage is that the arc is more stable, than in AC transformers. Besides this welding apparatus can be used in operations involving both, ferrous and nonferrous metals. The structure of DC devices that have several stations can be efficient even when several welders work together. An inverter is a representative of the new generation of welding equipment. There exist three kinds of inverters: DC inverters for manual metal arc (MMA) welding; DC or AC and DC inverters for MMA and gas tungsten arc (TIG) welding; Inverters with microprocessor-based control. In its essence ...
Sunday, November 11, 2012
Structural Features of Welders
Structural Features of Welders Video Clips. Duration : 3.38 Mins.
Structural Features of Welders There are three kinds of welding apparatuses used to perform arc welding with covered electrodes. These are rectifier transformers, AC transformers and inverters. AC transformers are the cheapest devices of the kind. Structurally they consist of a power transformer and a choke. The welding current is regulated rather smoothly based on the principle applied in laboratory autotransformers. Transformer welding equipment weighs quite a lot, primarily due to the weight of the transformer itself. Besides, they are inferior to other welding devices in a number of parameters, like current efficiency and welding quality. Rectification devices operate off of direct current, and can be used with carbon and stainless steels. These devices also contain a transformer, a choke, and powerful diode or thyristor DC rectifiers. The only drawback here is that part of the power is lost. The key advantage is that the arc is more stable, than in AC transformers. Besides this welding apparatus can be used in operations involving both, ferrous and nonferrous metals. The structure of DC devices that have several stations can be efficient even when several welders work together. An inverter is a representative of the new generation of welding equipment. There exist three kinds of inverters: DC inverters for manual metal arc (MMA) welding; DC or AC and DC inverters for MMA and gas tungsten arc (TIG) welding; Inverters with microprocessor-based control. In its essence ...
Structural Features of Welders There are three kinds of welding apparatuses used to perform arc welding with covered electrodes. These are rectifier transformers, AC transformers and inverters. AC transformers are the cheapest devices of the kind. Structurally they consist of a power transformer and a choke. The welding current is regulated rather smoothly based on the principle applied in laboratory autotransformers. Transformer welding equipment weighs quite a lot, primarily due to the weight of the transformer itself. Besides, they are inferior to other welding devices in a number of parameters, like current efficiency and welding quality. Rectification devices operate off of direct current, and can be used with carbon and stainless steels. These devices also contain a transformer, a choke, and powerful diode or thyristor DC rectifiers. The only drawback here is that part of the power is lost. The key advantage is that the arc is more stable, than in AC transformers. Besides this welding apparatus can be used in operations involving both, ferrous and nonferrous metals. The structure of DC devices that have several stations can be efficient even when several welders work together. An inverter is a representative of the new generation of welding equipment. There exist three kinds of inverters: DC inverters for manual metal arc (MMA) welding; DC or AC and DC inverters for MMA and gas tungsten arc (TIG) welding; Inverters with microprocessor-based control. In its essence ...
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