Hot Chamber Die Casting

The hot-chamber die casting process is only used for zinc and other low-melting-point alloys that do not readily attack and erode metal pots, cylinders and plungers. Development of this technology, through the use of advanced materials, allows this process to be used for some magnesium alloys. The basic components of a hot-chamber die casting machine and die are illustrated below.
During the hot-chamber process, the plunger and cylinder, which constitute the injection mechanism, are submerged in the molten metal in the crucible (or pot), which is integral to the machine. The operation sequence for the hot-chamber cycle is illustrated below.