Aluminum Low Pressure Casting
Aluminum Low Pressure Die Casting (LPDC) is a casting process in which molten aluminum is pushed into a mold using low gas pressure (usually air or nitrogen). In this method, the metal fills the mold from the bottom upward, which allows for better control of the filling process and improves the quality of the casting.
Aluminum Low Pressure Casting
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High quality casting method where molten aluminum fills the mold under low pressure.
Working Principle
In low pressure die casting, molten aluminum is stored in a sealed furnace located below the mold. When low pressure is applied inside the furnace, the molten metal rises through a riser tube and fills the mold cavity.
Aluminum is melted and maintained at around 680–720 °C in the furnace.
A low pressure of about 0.3 – 1 bar is applied inside the furnace.
The pressure forces the molten metal to rise through a riser tube into the mold.
The mold is filled gradually from the bottom to the top.
The metal solidifies inside the mold and the casting is removed.
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