A kind of aluminum alloy die-casting molding equipment and molding method

Abstract

The invention discloses a molding equipment and a molding method of an aluminum alloy die casting, and relates to the technical field of industrial processing. The aluminum alloy die-casting molding equipment and its molding method include a die-casting silo, an exhaust groove is formed on the upper end of the inner wall of the right side of the die-casting silo, a hydraulic press is arranged above the die-casting silo, and a support rod is fixedly connected to the rear side of the hydraulic press. A hydraulic rod is fixedly connected to the center of the lower surface of the hydraulic press, and a pressure plate is fixedly connected to the lower surface of the hydraulic rod. When it is flowing, it can only contact with part of the surface of the mold shell, the heat absorption is not uniform, the molten metal in the mold is partially cooled faster, and the cooling part is slower, which will cause stripes on the surface of the molded die-casting part, that is, the surface appears to flow with the molten metal. The problem of sunken smooth texture in the same direction.

Description

technical field [0001] The invention relates to the technical field of industrial processing, in particular to a molding device for an aluminum alloy die casting and a molding method thereof. Background technique [0002] Die casting is a metal casting process characterized by the use of a mold cavity to apply high pressure to molten metal. Molds are usually machined from stronger alloys, a process somewhat similar to injection molding. Most die castings are free of iron, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. After the die-casting is completed, the surface of the mold needs to be cooled, so that the die-casting can be cooled more quickly and separated from the mold. Many cooling methods are to introduce coolant into the mold shell, and the coolant flows along the inner pipeline of the mold shell. Take the heat away. [0003] However, when the existing cooling method of aluminum alloy die castings is used, because the c...

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Problems solved by technology

[0003] However, when the existing cooling method for aluminum alloy die castings is in use, because the cooling liquid can only contact part of the mold shell surface when it flows, the heat absorption is not uniform enough. Streaks appear on the surface of the molded die casting, that is, the surface presents a sunken smooth texture consistent with the flow direction of the molten metal. Although this defect can be removed by polishing, it increases the workload of the staff.

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