The role of the bath movement in recycling scrap using coreless induction furnaces
One unique and well-known feature of the coreless induction furnace is its pronounced metal bath movement, caused by the electromagnetic forces present. This bath movement, basically depending on the furnace power and operating frequency, is the reason for the good homogeneity of the melt regarding composition and temperature delivered by such furnace type. On the other hand, this feature is widely used for stirring fine sized metallic scrap into the melt. This type of operation can be further optimized and tailored to the specific requirements by employing some new special circuits. Finally, a new technology is presented, allowing to operate a coreless induction furnace at continuously adjustable frequency down to 30 Hz and with adjustable phase shift between two coil sections, thus offering unmatched freedom in selecting heating power and bath movement characteristics independently.
| Authors | Wilfried Schmitz, Alejandro Hauck |
|---|---|
| Publishing Date | 23 Mar 2018 |
| Format | |
| Publisher | Vulkan-Verlag GmbH |
| Language | English |
| Pages | 6 |
| Title | The role of the bath movement in recycling scrap using coreless induction furnaces |
| Description | One unique and well-known feature of the coreless induction furnace is its pronounced metal bath movement, caused by the electromagnetic forces present. This bath movement, basically depending on the furnace power and operating frequency, is the reason for the good homogeneity of the melt regarding composition and temperature delivered by such furnace type. On the other hand, this feature is widely used for stirring fine sized metallic scrap into the melt. This type of operation can be further optimized and tailored to the specific requirements by employing some new special circuits. Finally, a new technology is presented, allowing to operate a coreless induction furnace at continuously adjustable frequency down to 30 Hz and with adjustable phase shift between two coil sections, thus offering unmatched freedom in selecting heating power and bath movement characteristics independently. |
