aluminium high pressure die casting process

　　Which is more suitable for you, zinc alloy die-casting or aluminum alloy die-casting

　　(1) Zinc alloy is two to three times more expensive than aluminum alloy in terms of raw material cost. Because the prices per kilogram of zinc alloy and aluminum alloy are relatively close, but the specific gravity of zinc alloy is about 2.5 times that of aluminum alloy. In other words, for the same volume, zinc alloy is about 2.5 times heavier than aluminum alloy, and the cost required is about 2.5 times higher;

　　(2) Zinc alloy die-casting parts have smooth surfaces, high dimensional accuracy, and high mechanical properties at room temperature. They have good compression and wear resistance, making them suitable for various surface treatments. If the customer's product surface needs polishing and electroplating, and the appearance quality requirements are high, using zinc alloy die-casting is better than using aluminum alloy die-casting, because the formability of aluminum alloy is poor, the surface of the product is prone to leaving holes, and it is not wear-resistant, and the surface after electroplating is not aesthetically pleasing;

　　(4) Although the formability of aluminum alloy is not good, its die-casting performance is better than that of zinc alloy. Aluminum alloy die-casting parts have better conductivity, thermal conductivity, cutting performance, and other aspects than zinc alloy;

　　(5) Aluminum alloy die-casting molds are slightly more expensive than zinc alloy die-casting molds. Because aluminum alloy die-casting can stick to the mold and corrode the metal crucible, the material of aluminum alloy die-casting molds should be better and more expensive.

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