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Silcarb manufactures a Rugged Crucible Type Aluminium Melting Furnace (Silicon Carbide Crucible). These are mainly used in melting and holding high magnesium alloys of aluminium and Copper. Silicon Carbide Heaters are used as the main heat source.
Crucible Type Aluminium Melting furnaces are small-capacity furnaces used for small melting applications or exclusively as holding furnaces. The metal is placed or poured into a ceramic crucible, which is contained in a circular furnace that is fired by a gas burner or heated by electric elements. The heating fuel is typically coke, oil, gas or electricity. Gas-fired crucible-style furnaces offer the advantage of a high-volume melt capacity per square foot of floor space required. They are perhaps the most flexible of all furnace styles. Less affected by frequent cycling, they offer faster start-ups and temperature recovery.
Silcarb has more than 1100 Crucible Type Aluminium Melting furnaces currently operating in India and around the world.
Silcarb manufactures Crucible Type Aluminium Melting furnaces with the primary heat source being electric, gas and heavy fuel. These crucible furnaces can be used for melting aluminium, copper, brass and in fact most nonferrous metals. In the electric range of Crucible Type Aluminium Melting furnaces that Silcarb manufactures, the heat source is usually the silicon carbide heater, which is manufactured in-house. These heaters are highly energy-efficient and ensure energy consumption as low as 11 units of energy consumed to hold 500 kgs of molten metal.
The heaters, in combination with Silcarb’s refractory insulation of microporous insulation and low-density insulation, make this furnace a very low-energy, low-capital, and low-maintenance furnace. The average life expected out of this combination of refractory insulation and heaters is usually 5-7 years of continuous operation. The same combination of refractory insulation is also extended to our fuel-fired(gas and heavy fuel) systems. Combustion systems used in the Silcarb furnace are completely tailor-made to suit nonferrous applications.
Recuperates and direct flame systems are used to increase efficiency. Flue paths inside the furnace are elongated to get maximum “time spent” in the furnace hot zone. Silcarb has a unique “crucible failure” alarm built into all its crucible furnaces as a safety feature. All automated control systems with molten metal temperature measurement systems allow the aluminium temperature to be maintained in tight tolerances
Crucible Type Aluminium Melting Furnaces are used in foundries and nonferrous metal processing units for small-capacity melting, alloy preparation, and holding applications.
These furnaces are suitable for operations requiring flexibility, fast start-up, frequent cycling, and tight temperature control while maintaining low energy consumption and high operational safety.
