elbow housing is cast in a two plate die with a hot chamber gating
system. The photos
above show the two die halves -- the cover half and the ejector half.
The molten zinc
enters the die nozzles at 420C/788F. The gas-fired holding
pots will hold 200 pounds of zinc.
A die casting run
produces 25,000 housings, running at 235 parts per hour (a
piece every 15 seconds!!)