Bell furnace

meltinginduction

In recent years, magnesium castings have virtually undergone a revival, particularly in the automotive industry with a view to weight saving. Similar to aluminium, the primary energy consumption for the production of magnesium is several times that required for the remelting of scrap. Therefore, recycling is an important issue in both cases. Apart from the so-called "in-house recycling" of clean, sorted returns, the coreless induction furnace is traditionally used for melting down the remaining scrap. Special melting salts are used for refining the melt. This is where the advantages offered by the coreless induction furnace come to the fore: „ Due to the pronounced bath movement, there is intensive contact between the melt and the salt particles, the salt can be used econonomically and the treatment times are short. „ The thermal load on the steel crucibles normally used for this purpose can be considerably reduced by the OTTO JUNKER Power Focus technology which allows a close control of the energy applied onto the crucible over its height so that overheating in the upper crucible area with a partly filled crucible can be avoided.