——————————————————————————————————————————————————– Scan inductors are often used to induction harden steel components. The main advantages of scan inductors versus single-shot, or static inductors are their superior flexibility for hardening parts of various lengths and having multiple diameter changes. Scan inductors may consist of one or more turns. Most commercially available software programs do not have the [...]
Without a concentrator, the mag- netic flux would spread around the coil or current-carrying conductor and link with the electrically conductive surroundings (auxiliary equipment, metal supports, tools, and fixtures, for example). The concentrator forms a magnetic path to channel the coil’s main magnetic flux in a well-defined area outside the coil. Click here to learn [...]
The skin and proximity effects — as well as the “ring,” “slot,” and edge effects — lead to a nonuniform current distribution within a copper coil. Areas of high current density within this distribution are the primary candidates for localized hot spots, which can result in premature coil failure. Click here to read more about [...]
Induction heating is widely used to heat metals, such as bars and billets, prior to hot forming. Progressive multi-stage horizontal heating is one of the most popular approaches to heat small- and medium-size billets. Because pyrometers can measure only the billet surface temperature, there is always the possibility of missing subsurface overheating or having billets [...]
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