Hot Chamber Die Casting

Hot Chamber Die Casting means that the pressure chamber is immersed in the liquid metal of the thermal insulation melting crucible, and the injection parts are not directly connected with the base, but installed on the crucible. It has the advantages of simple production process and high efficiency; Less 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. It is easy to increase the iron content of the alloy.

It sometimes to becalled gooseneck die casting, its metal pool is molten liquid and semi liquid metal, which fills the mold under pressure. At the beginning of the cycle, the piston of the machine is in a contracted state, and the molten metal can fill the gooseneck. The pneumatic or hydraulic piston squeezes the metal and fills it into the mold. The advantages of this system include high cycle speed (about 15 cycles per minute), easy automation, and convenient melting of metal. Disadvantages include the inability to die cast metals with high melting points, as well as aluminum, which will bring iron out of the melting pool. Therefore, hot chamber die casting machines are generally used for alloys of zinc, tin and lead. Moreover, it is difficult to be used for die casting large castings. Usually, this process is die casting small castings.

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