Common reasons for the unqualified quality of aluminum alloy profiles

• Mixed raw materials: In order to reduce costs, some companies mix recycled aluminum or aluminum with different components in the production raw materials.

• Lossy control: the control of raw materials is not strict, resulting in the content of chemical elements in raw materials does not meet the requirements, or raw materials contain impurities, making the content of chemical elements in aluminum alloy profiles exceed the standard.

• cut corners: In order to reduce production costs, manufacturers cut corners in the production process, or use unqualified molds, resulting in aluminum profile stress rod wall thickness below the standard.

• Determination is not timely: aluminum alloy profile coating process, the solution concentration does not meet the requirements, and the solution concentration determination is not timely, accurate, resulting in thin oxide film, can not reach the standard thickness.

In addition, there are other factors, such as unreasonable mold design, improper extrusion speed and temperature control, and insufficient cleanliness of the production environment, which may also affect the quality of aluminum alloy profiles.