NEW MELTING and SQUEEZE CASTING SYSTEM FOR HIGH QUALITY AL CASTING

摘要

Aluminum die-casting product quality depends primarily on molten metal quality. In particular, molten metal transfer techniques after degassing are very important to keep the molten metal clean. By using two types of transfer systems, clean molten metal can be supplied from the melting furnace to the holding furnace for casting. One is a tapping system for the molten metal in the melting furnace. The other is a vacuum transfer system by siphon pipe. This system is used for transferring from the holding furnace to the holding furnace of casting machines. In high-pressure die-casting processes, clean molten metal was also found to be necessary, and the metal level in the holding furnace was kept constant by a float. Further, the metal was supplied smoothly and quickly from the holding furnace to the plunger sleeve with nitrogen gas pressure.