Aluminum casting is divided into aluminum alloy casting and high-pressure casting in general. It is often said that die casting refers to high-pressure die casting, which uses a die-casting machine to compact the molten aluminum alloy profile in a high-speed mold and rapidly cool it under high pressure. And usually casting is divided into sand casting, gravity casting, low pressure casting, dewaxing casting, differential pressure casting, ceramic casting, gypsum casting and so on.
Therefore, aluminum alloy casting refers to the aluminum alloy obtained by the usual casting method, and die-casting aluminum alloy refers to the aluminum alloy obtained by the high-pressure die casting process.
Countries around the world have different names for cast aluminum alloys and die-cast aluminum alloys. In China ’s GB specification, cast aluminum alloys are expressed with ZL + 3 digits. For example, ZL101 means cast aluminum alloys, and die-cast aluminum alloys use YL +. 3-digit expression, example YL102; the Japanese JIS standard will describe the cast aluminum alloy with 4 digits, for example AC4C, A means aluminum, C means a series, 4C means classification; ADC + 2 bits for die-cast aluminum alloy Numeric expressions, such as the most common ADC10, ADC12; Cast aluminum alloys in the American ASTM standard are expressed by A + 3 digits. When the value of at least 3 digits exceeds 359, it is die-cast aluminum alloy; ; The most commonly used A380 is die-cast aluminum alloy, while A356 is cast aluminum alloy, the key is gravity casting.
Cast aluminum alloys are very easy to use as anodes, while die-cast aluminum alloys are difficult to make. But the die casting aluminum alloy is better for electroplating.