The welding transformer
Welding transformers provide alternating current, and are the cheapest and perhaps the
simplest type of power unit. They are used primarily for welding with coated electrodes,
although they can also be used with other welding methods when the use of alternating
current is required. As opposed to other transformers, welding transformers generally
have a drooping characteristic. A common way of effecting this is to separate the
primary and secondary windings so that there is a certain leakage of magnetic flux.
Adjusting the required welding current is then carried out by moving an additional
section of core in or out of the windings by means of a handwheel. More advanced
power units, for use with TIG, submerged arc and occasionally MIG welding, can be
controlled by thyristors or transistors using square-wave switching technology. In such
cases, it is common for them to be able to switch between AC andproducing what is
known as AC/DC
Supplied By RIHUI Ceramic Welding Backing
Date: 2023-04-10 hits: 599 Return
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Spot welding( RIHUI Ceramic Welding Backing) 2023-04-10