linkedalu 2020-03-27

Aluminum alloy doors and windows refer to the doors and windows made of Aluminum door and window profiles for frames, stiles and fans, which are called aluminum alloy doors and windows for short. Aluminum alloy doors and windows include doors and windows which are made of wood and plastic composite with aluminum alloy as the base material of stress members (members that bear and transmit weight and load), which are called aluminum wood composite doors and windows and aluminum plastic composite doors and windows for short.

The quality of aluminum alloy doors and windows can be roughly judged from the material selection of Aluminum door and window profiles, the surface treatment and internal processing quality of aluminum materials, and the price of aluminum alloy doors and windows.

The specification and size of Aluminum door and window profiles are mainly marked by the height and size of Aluminum door and window profiles section (the thickness and size of its door and window frame when used in aluminum alloy doors and windows), and constitute a dimension series. Aluminum door and window profiles mainly has 40, 45, 50, 55, 60, 65, 70, 80, 90, 100mm and other size series. Among them, the size series for aluminum alloy window is smaller, and the size series for aluminum alloy door is larger. The dimension series of aluminum doors and windows are the same, not necessarily the section shape and dimension of Aluminum door and window profiles are the same. The crossing section shape and size of Aluminum door and window profiles with the same size series are quite complicated. It must be analyzed and treated according to the drawing. Aluminum door and window profiles is divided into solid section and hollow section according to the section shape. The application of hollow section is large. The wall thickness of Aluminum door and window profiles shall not be less than 1.4mm for aluminum alloy windows and 2mm for aluminum alloy doors. The length of Aluminum door and window profiles can be divided into fixed length, multiple length and indefinite length. Generally, the fixed length shall not exceed 6m, and the indefinite length shall not be less than 1m

Aluminum doors and windows are made of aluminum magnesium silicon series aluminum alloy profiles, and their chemical components include silicon, iron, copper, magnesium, manganese, chromium, titanium, zinc and other alloy components in addition to aluminum. It contains 0.45-0.90% magnesium and 0.2-0.6% silicon. The mechanical properties of Aluminum door and window profiles: the tensile strength, σ B, is not less than 157n / mm2; the specified non proportional elongation stress, σ P 0.2, is not less than 108n / mm2; the elongation is not less than 8%; and the hardness, HV, is not less than 58.

The surface treatment of Aluminum door and window profiles mostly adopts anodizing, which makes the surface of Aluminum door and window profiles silver white. Surface treatment can enhance the appearance of Aluminum door and window profiles and prolong the service life of Aluminum door and window profiles. The technological process of anodizing: loading → degreasing → washing → alkali etching → warm water washing → cold water washing → neutralization and light out → washing → anodizing → cold water washing → warm water washing → hole sealing → drying → unloading → finished product inspection → packaging Aluminum door and window profiles the thickness of oxide film after anodizing shall not be less than 10 μ M. Aluminum door and window profiles surface treatment, can also be colored. Aluminum profiles requiring other colors can be obtained by natural oxidation coloring, electrolytic coloring and immersion coloring.

Because of these characteristics, Aluminum door and window profiles has become one of the mainstream materials for doors and windows. If you want to know more about Aluminum door and window profiles, if you want to get quality Aluminum door and window profiles materials, please contact us.