Aluminum alloy materials commonly used in aluminum alloy die castings


The aluminum alloy materials in aluminum alloy die-cast […]

The aluminum alloy materials in aluminum alloy die-casting parts are mainly divided into three materials: aluminum silicon alloy, aluminum silicon copper alloy and aluminum magnesium alloy:
Aluminum-silicon alloy: mainly includes YL102 (ADC1, A413.0, etc.), YL104 (ADC3, A360);
Aluminum silicon copper alloy: mainly includes YL112 (A380, ADC10, etc.), YL113 (3830), YL117 (B390, ADC14) ADC12, etc.;
Aluminum-magnesium alloy: mainly includes 302 (5180, ADC5,) ADC6 and so on.
For aluminum-silicon alloys, aluminum-silicon-copper alloys, as the name implies, silicon and copper are the main components except for aluminum; in general, the silicon content is between 6-12%, mainly to improve the flow of alloy liquid. The role of sex; copper content is second only, mainly to enhance the strength and tensile force; iron content is usually between 0.7-1.2%, within this ratio, the workpiece release effect is best; through its composition It can be seen from the composition that such alloys are impossible to oxidize and color, and even if desiliconization is used, it is difficult to achieve the desired effect. For aluminum-magnesium alloys, it can be oxidized and colored, which is an important feature of the difference with other alloys.
At present, aluminum alloy die-casting parts are commonly used A380, A360, A390, ADC-1, ADC-12 and other materials. ADC12 is equivalent to A383 of the American ASTM standard, and A380 is equivalent to ADC10 of the Japanese standard. In Japan, ADC12 is widely used, but in the United States, A380 is widely used, and the composition of the two is similar, but the difference in Si content is larger, ADC12 is 9.5~12%, and A380i is 7.5~9.5%. In addition, the content of Cu is also somewhat different, ADC12 is 1.5~3.5%, and A380 is 2.0~4.0%, and other components are basically the same.
The most commonly used in China are ADC12 materials and ADC6 materials. The main difference between the two materials is that the content of Si, Fe, Cu, Zn, Ni and Sn in ADC12 is higher than that of ADC6, while the content of Mg is lower than that of ADC6. The performance of ADC12 die casting and machining will be better, and the corrosion resistance is better. It is inferior to ADC6 material.