Quality Tests of Aluminium Profiles For Window/Door

Posted by Li Zhang on October 28th, 2019

MATERIAL

The aluminium profiles for doors and windows are mainly made of 6063/6060 grade aluminum alloy. If the aluminum extrusion manufacturer uses the national standard 6xxx aluminum ingot, it will be guaranteed in terms of raw material quality.

THICKNESS

In general, thin-walled aluminium profiles are not accepted in window and door fabrication. The actual measured dimensions of the minimum wall thickness of these stressed members shall be not less than 1.4 mm for the outer window and not less than 2.0 mm for the outer door. The detection method uses a vernier caliper to perform on-site random sampling inspection of the aluminium profile.

STRENGTH

The profile is bent with both hands, and the twisting strength is good, and it can be restored after loosening your hands. If the strength of the aluminium profile is not enough, it is easy to be deformed, which may result in unqualified wind pressure resistance level, the finished switch is not smooth, and the deformation amount is too large.

APPEARANCE

Cracks, burrs, peeling or corrosion are not allowed on the surface of the aluminium profile. No obvious scratches, craters or bruises are allowed. In the transportation of aluminium profiles, ensure that the protective film is intact, and the handling process should pay attention to the phenomenon of bruising. The same aluminium profile does not allow two different colors. Put a few profiles together and see the color difference, if the color difference is very large, it should not be used.

FONNOV ALUMINIUM is a professional aluminum extrusion manufacturer producing aluminium profiles products. Contact marketing@fonnov.com.cn for more details.