18 inch factory direct car rim 5X112/114.3/115/120 aluminum alloy car wheels

The aluminum alloy casting aluminum alloy casting in the attractive attractive attractive performance is often difficult to meet the needs of people’s use, which needs to be further improved through heat treatment. The purpose of thermal treatment is the following aspects: first, the mechanical performance of the casting is fully improved, and the processing performance of aluminum alloy has been effectively improved. The internal stress, etc. are effectively eliminated; third, the size of the casting and the organization of the casting is effectively stable to prevent the size of the castings caused by the high temperature or the expansion. The organic organization has been eliminated, and at the same time, it can also improve the organization and mechanical properties of aluminum alloy.