A schematic of a hot-chamber zinc
Die Casting Machine is shown in Figure 1.2. A significant portion of the metal injection system is immersed in the molten metal at all times. This helps keep cycle times to a minimum, as molten metal needs to travel only a very short distance for each cycle. Hot-chamber machining Components are rapid in operation with cycle times varying from less than 1 sec for small components weighing less than a few grams to 30 sec for castings of several kilograms. Dies are normally filled between 5 and 40 msec. Hot-chamber die casting is traditionally used for low melting point metals, such as lead or zinc alloys. Higher melting point metals, including al die casting alloys, cause rapid degradation of the metal injection system. Cold-chamber al die casting machines are typically used to conventionally die cast components using brass and aluminum alloys.machining Components An illustration of a cold-chamber die casting machine is presented in Figure 1.3. Unlike the hot-chamber machine, the metal injection system is only in contact with the molten metal for a short period
