Smelting at Varun Metal Foundry

Source : C.I.Casting
	Once the furnace is sufficiently filled with fuel and crude material, air is blasted into the combustion mixture, increasing the temperature inside the furnace. When burned in the presence of oxygen, the high-carbon coke fuel undergoes a chemical reaction to produce the gases carbon monoxide and dioxide, which diffuse through nearby molten metal and increase its carbon levels.  Soon molten metal begins to accumulate around the tap-hole and can be extracted from the furnace. As molten metal is removed, more pieces of crude metal are inserted through the top hole to maintain a constant level of material inside the furnace. This allows the furnace to be operated continuously, as long as someone regularly replenishes the fuel (Coal) and crude metal levels in the furnace. When the desired amount of metal has been produced, the remaining contents of the furnace are removed by opening the bottom doors. Posted by : Graded C.I. Casting Ahmedabad