Reasons for the phenomenon of molten steel boiling furnace in induction melting furnace

Induction melting furnaces may have a continuous flow of molten steel in use, with a slight explosion, which is very similar to volcanic eruption. Don't worry, this is the boiling furnace, which is the phenomenon that the molten steel violently boils due to various reasons during the melting process.

Reason one: scrap iron is corroded and unbaked

Melting furnace solution: In actual production, it must be strictly in accordance with the process requirements. The furnace charge should be baked and rust-free; once such a boiler is generated, it should be powered off immediately to prevent the overflowing molten steel from short-circuiting the induction furnace. Damage to the equipment or a larger accident; after the power is cut off, adding appropriate amount of deoxidizer to the furnace and covering the liquid surface with the slag removing agent can alleviate the reaction; if the boiling furnace is more severe, the molten steel can be directly poured into the furnace if necessary. Inside the pit.

Reason 2: The charge contains low melting point and low boiling point metals and their compounds

Solution: If you need to melt small or broken materials during the smelting process, the small materials should be placed at the bottom of the furnace when feeding. Because the heating is slow when starting to melt, the low melting point metals and their compounds will be slow. Slow decomposition or gasification does not cause a violent reaction as it is immediately added to the molten metal.

Reason three: wearing the furnace - when some parts of the furnace wall are eroded by molten steel, it is easy to wear the furnace when melting

Melting furnace solution: The lining of the furnace should be inspected and repaired continuously; in the case of discontinuous operation, it should be inspected in detail whether the top, wall and bottom of the furnace need to be repaired before the furnace is opened; when continuous melting, once every steel is discharged, it should also be observed from the top of the furnace. Whether it needs to be repaired to the bottom of the furnace; the cracks need not be repaired below 2mm, and the cracks of more than 2mm need to be repaired; when repairing, remove the surrounding slag, and put the paper containing the repairing material on the lower end of the crack, using U-shaped iron needle, The material is squeezed into the crack, and the surface is squeezed and smoothed with a furnace material mixed with water glass to prevent the occurrence of a furnace accident.