Aluminum alloy metal die castings are now widely used in electronic products, automobiles, daily necessities and other industries and fields. However, there are some common defects and solutions of aluminum alloy metal die castings.

1. Impurities

The impurity problem of aluminum alloy metal die casting is mainly the composite grains containing aluminum, silicon and a large amount of iron, manganese, chromium and other compounds at a certain temperature, as well as some oxides. It can be solved by strictly controlling the composition of aluminum ingots, cleaning the furnace regularly, and making slag regularly.

2. Pore problem

It refers to that there are holes of different sizes inside or on the surface of the hardware die casting, which will lead to insufficient hardness of the hardware die casting

3. Crack problem

Cracks refer to narrow cracks formed after the matrix of aluminum alloy metal die castings is damaged. The cracks are linear or other linear and tend to elongate under the action of external forces. These cracks can be solved by correctly controlling the alloy composition, increasing cooling water channels, changing the structure and location of aluminum alloy metal die castings, or adding injectors.