In low-pressure casting, the mold is placed in a closed holding furnace, and the cavity is connected to the metal in the furnace through a riser. During operation, compressed air is added to the furnace and molten metal will flow from the riser into the cavity. After the molten metal solidifies, the compressed air in the furnace is released, and the unsolidified metal flows back into the furnace from the riser.
Low pressure casting is to place the casting mold in a closed holding furnace, and the cavity is connected to the molten metal in the furnace through a riser. In operation, pressurized air is added to the furnace and molten metal flows from the standpipe into the cavity. After the molten metal solidifies, the compressed air in the furnace is released, and the unsolidified metal flows back into the furnace from the riser.
Die casting is a metal casting process commonly used by die casting manufacturers, which is characterized by the use of the cavity of the mold to apply high pressure to the molten metal. The mold is usually made of a high-strength alloy. This process is somewhat similar to injection molding. Most die castings are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin and lead-tin alloys and their alloys. Depending on the type of die casting, die casting manufacturers need to use a cold chamber die casting machine or a hot chamber die casting machine.
The traditional die casting process of die casting manufacturers mainly includes four steps, namely high pressure die casting. These four steps include mold preparation, filling, injection and sand drop, which is also the basis of various improved die casting processes. When the die casting manufacturer prepares for the die casting process, it needs to inject lubricant into the mold cavity. In addition to helping control the temperature of the mold, lubricants can also help demolding castings. The mold can then be closed and then molten metal can be injected into the mold under high pressure.
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