There are two main High Pressure Diecasting Methods: Cold Chamber and Hot Chamber.
Hot Chamber Die casting demonstration:
(1) The mould is closed and sealed. The plunger is in the upper position.
(2) The plunger injects liquid metal through the gooseneck and along to the mould, whilst preserving static pressure with the movement, until the material solidifies.
(3) After casting the plunger returns to it's original position, whilst the product remains in the mould.
(4) The product is removed from the mould by moving side ejectors.
To learn more about Die Casting Process, Die Casting vs. Other Processes, Choosing the Proper Alloy, Die Construction, Hot Chamber Machines, Cold Chamber Machines, High Integrity Die Casting Methods please find relevant information at: www.diecasting.org/faq/default.htm#Introductiondownload. ("The Advantages of Die Casting")
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The plunger injects liquid metal through the gooseneck and along to the mould, whilst preserving static pressure with the movement, until the material solidifies. 