Hot Chamber Zinc Castings. The procedure of hot chamber zinc casting is a procedure that melts zinc using a 700- to 800-degree Fahrenheit furnace. Once the zinc is watery, it stays in the heat. A sleeve is placed in the heat and inserted to the molten zinc metal, which is held together by the machine from the furnace into the two die halves.
The two halves of the die casting are placed on the machine that keeps the two halves together and remains closed until the next step. Hydraulic pressure hardens the metal within two to seconds depending on the size of the parts. After this the part is separated and ejected by hand or robotically, the halves are then opened. Trimming, precision machining, tumble deburring painting, chrome plating, anodizing, and assembly will follow.
The hot chamber zinc casting is intended for zinc, copper, lead, magnesium and others on alloys with low melting point. The method does not destroy and corrode metal furnace pots, plungers, and cylinders. The injection mechanism of hot chamber zinc casting machine is done by submerging zinc in the molten metal bath of a metal holding furnace. A port in the injection cylinder opens and the injection cylinder plunger rises, permit the molten metal to fill the cylinder. One of the advantages of hot chamber zinc casting is the fast cycle-time and the easy steps of melting in the casting machine. Disadvantages of this system include the high-melting point metals that cannot be operated. What’s mote, aluminium is not matched for this system because it picks up some of the iron while in the molten pool.
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