COLD CHAMBER DIE CASTING
Cold chamber die casting is extremely suitable for metals with high melting points such as aluminum. In this process, the metal is liquefied in an extremely high temperature furnace, and then sent into the cold room to be formed into the mold.
In the cold chamber die casting process, the content of molten metal should exceed the required amount of the casting body, and the metal is pushed into the mold by a hydraulically operated piston.
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Cold Chamber Die Casting Capability
The earliest cold chamber die casting machine can be traced back to 1920, which was first invented and manufactured by Carl Roehri. This cold chamber die casting machine was separated from the furnace and the machine. When the molten metal in the furnace was poured into the pressure chamber by hand (charging barrel), there is a punch immediately to inject the molten metal into the mold. Then, while the casting is ejected, the remaining biscuit formed by the excess metal in the press chamber is taken out with the casting. It can be seen that even with the current standards, this is completely a typical cold chamber die casting process.
Cold Chamber Die Casting Alloy
Cold chamber die casting can be used when die-casting metals that cannot be used in the hot-chamber die-casting process, like aluminum alloys. In this process, the metal needs to be melted first in a separate crucible. Then a certain amount of molten metal is transferred to an unheated chamber or nozzle.