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Why is Aluminum Alloy Not Suitable for Hot Chamber Die Casting Machine?

Why is Aluminum Alloy Not Suitable for Hot Chamber Die Casting Machine?

Why is Aluminum Alloy Not Suitable for Hot Chamber Die Casting Machine?



Die-casting machines are generally divided into hot-cast chamber die-casting machines and cold-pressure chamber die-casting machines. Cold-die chamber die-casting machines are divided into bedroom die-casting machines and vertical die-casting machines according to the structure and arrangement of their pressure chambers.


Hot chamber die casting machine has a high degree of automation, less material loss, and high production efficiency. However, during the hot die casting process, due to the heat resistance of the machine parts, it can only be used for the production of zinc alloy, magnesium alloy, and other low melting point castings.


The pressure chamber of the hot-press chamber die-casting machine is immersed in the liquid metal of the heat-preserving melting crucible. The injection parts are not directly connected to the machine base but are installed on the crucible. The advantages of this die-casting machine are the simple production process, high efficiency, low metal consumption, and stable process. However, the pressure chamber and injection punch are immersed in liquid metal for a long time, which affects the service life and easily increases the iron content of the alloy. Hot-press chamber die-casting machines are currently mostly used for die-casting low-melting alloy castings such as zinc alloys, but also for die-casting small aluminum and magnesium alloy die castings. Due to the high melting point of aluminum alloy die castings widely used today, most castings can only be produced on cold chamber die casting machines.


The cold chamber die casting machine is to pour the molten metal liquid into the injection chamber (into the barrel) through the soup spoon, and then use the injection piston (hammer) to push the metal liquid into the mold at high speed, while maintaining a certain pressure In the case of cooling and solidification to obtain casting equipment. The cold chamber die casting machine is suitable for die casting of various non-ferrous metals and ferrous metals. The production operations are few and simple, the production efficiency is high, and it is easy to realize automation.

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