Furnaces used for aluminum melting are usually called aluminum melting furnaces or aluminum alloy melting furnaces. These furnaces are designed according to the needs of aluminum smelting process and are mainly used for melting and heat preservation of aluminum ingots. The following are several common types of aluminum melting furnaces:
- Crucible furnace:
Features: Crucible furnaces are widely used in the aviation manufacturing industry. They have the advantages of strong mobility and are suitable for frequent changes of alloy grades and intermittent production. At the same time, the smelting quality is high.
Structure: The crucible furnace consists of a melting furnace, a crucible, a heating element, a furnace cover lifting mechanism, and an electrical automatic temperature control system. The furnace shell is usually welded by steel sections and steel plates and is cylindrical.
Heating method: In aviation factories, the heating methods of crucible furnaces include electric heating, gas or heavy oil heating and other options.
- Dry bed continuous melting furnace:
- Features: The furnace uses pressure atomized fuel to achieve complete combustion. It is equipped with a melting chamber, a heat preservation chamber and a water outlet chamber, etc., which can achieve continuous melting of aluminum ingots.
- Advantages: This furnace improves melting efficiency and helps keep the temperature of the aluminum liquid stable.
- Medium frequency induction melting furnace:
Features: It uses medium frequency induction heating technology to heat and melt aluminum ingots quickly and evenly.
Application: It is widely used in the melting and heat preservation of aluminum and aluminum alloys, especially suitable for small and medium-sized metal processing plants.
- Electroslag remelting furnace:
Features: Although electroslag remelting furnaces are mainly used for refining various alloy structural steels, they can also be used for the melting of non-ferrous metals such as aluminum under certain conditions.
Principle: The metal is remelted by the heat energy generated by the current in the high-resistance slag.
- Other types of aluminum melting furnaces:
- With the advancement of technology, other types of aluminum melting furnaces such as high-frequency induction heating furnaces and resistance furnaces have emerged. These furnaces have their own characteristics and are suitable for different production scenarios and needs.
When choosing an aluminum melting furnace, it is necessary to comprehensively consider factors such as actual production needs, melting volume, budget and environmental protection requirements. At the same time, furnace maintenance and care are also crucial to ensure its long-term stable operation and efficient production.
Aluminum is typically melted using either an electric arc furnace or an electric resistance furnace. However, there are several other types of furnaces available, depending on scale and application:
- Electric Arc Furnace: This furnace uses an electric arc to melt aluminum, is highly efficient, and is typically used for large-scale production.
- Induction Furnace: This is another commonly used aluminum melting equipment, using electromagnetic induction to heat the metal, and is known for its efficiency and precise temperature control.
- Electric Resistance Furnace: This furnace generates heat through electrical resistance, is suitable for small-scale operations, and can effectively melt aluminum.
- Gas Furnace: Although less common in aluminum melting, gas furnaces can also be used, and are typically used in large-scale melting processes or foundries.
Which furnace to choose depends on the amount of aluminum to be melted, the required precision, and the specific application needs.