1. High-quality aluminum alloy airtight joint casting processing products are of good quality: high dimensional accuracy of castings, generally equivalent to 6 to 7 or even 4; good surface finish, generally equivalent to 5 to 8; general strength is 25- higher than sand casting 30%, but the elongation is reduced by about 70%. Dimensionally stable and interchangeable.

　　2. High-quality aluminum alloy airtight joint casting processing has high production efficiency: high machine productivity. For example, the domestic horizontal cold air die-casting machine can die-cast aluminum 600-700 times in an average of 8 hours, and the small hot chamber die-casting machine can die-cast aluminum 3000-7000 times in an average of 8 hours. High-quality aluminum alloy airtight joint casting processing Die-casting aluminum mold has a long life.

　　3. Excellent economical effect of high-quality aluminum alloy airtight joint casting processing: due to the precise size and smooth surface of the pressed aluminum parts. Generally, it is not used for processing but used directly, or the processing volume is small, which not only improves the utilization rate of metal, but also reduces a lot of processing equipment and man-hours; cheap castings; die-casting aluminum can be used with other metal or non-metal materials. The casting process of high-quality aluminum alloy gas-tight joints not only saves the assembler's time, but also saves metal.