Smelting non-ferrous metals through medium frequency induction heating furnace can reduce melting loss or achieve non-oxidation smelting

Benefits of using medium frequency induction heating furnace to smelt non-ferrous metals

Using medium frequency induction heating furnace to smelt non-ferrous metals can reduce melting loss or achieve non-oxidation smelting. When using a medium frequency induction heating furnace to smelt aluminum or aluminum alloys, the melting speed is fast due to the strong oxidative flame erosion in the flameless furnace. In addition, medium frequency induction furnace melting is recently used to increase the melting speed and reduce electromagnetic stirring. Therefore, The oxidation loss during melting is lower than that of flame furnace. When a trench-type induction furnace is used to melt copper, the furnace is easy to seal and can easily pass into a reducing protective atmosphere to prevent oxidation of the copper liquid. This type of induction furnace has become a typical ideal furnace type for the production of oxygen-free copper wires and rods (plates). .

Determination of electric furnace power

When designing and manufacturing medium frequency induction heating furnaces, the heat balance method and empirical estimation method can be used to determine the power. The heat balance method has great versatility and more accurate calculations. It is calculated based on the principle of phase balance between heat gain and loss in the furnace. For example, the sum of the heat absorbed by the charge, furnace lining, furnace shell, etc., as well as the heat dissipated by the furnace door, furnace wall, etc. and other heat losses is multiplied by an appropriate coefficient to calculate the total required heat, which is then determined by the conversion of heat and work. The input power of the electric furnace. This method is more complex to calculate, and is often used in professional electric furnace departments to design electric furnaces or check electric furnace linings. The empirical estimation method is relatively simple, but has certain limitations. Generally, factories and enterprises can use this method when making their own or rebuilding some non-standard resistance furnaces.