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What is high-pressure cast aluminum

  • Author:Zhou Xinyan
  • Source:www.xy-global.com
  • Release on:2021-10-07
High-pressure cast aluminum products actually refer to aluminum parts manufactured by pressure casting (referred to as die casting).
Die casting is a metal casting process that uses a mold cavity to apply high pressure to the molten metal. Molds are usually made of higher-strength alloys, and 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, you need to use a cold chamber die casting machine or a hot chamber die casting machine.
The advantages of die casting include excellent dimensional accuracy of castings. Usually this depends on the casting material. The typical value is 0.1 mm for the initial 2.5 cm size, and 0.002 mm for each additional cm. Compared with other casting processes, its casting surface is smooth, and the fillet radius is about 1-2.5 microns. Compared to sandbox or permanent mold casting methods, castings with a wall thickness of about 0.75 mm can be produced. It can directly cast internal structures, such as wire sleeves, heating elements, and high-strength bearing surfaces. Other advantages include its ability to reduce or avoid secondary machining, fast production speed, casting tensile strength of up to 415 MPa, and the ability to cast high-fluidity metals.