Quality Identification of Aluminum Profiles

Aluminum profile is a form of aluminum alloy material, usually composed of aluminum and a small amount of other metal elements (such as copper, manganese, silicon, magnesium, etc.), with specific mechanical properties and processing characteristics.

aluminum profiles are used in door and window frames, curtain wall systems, decorative strips, structural frames, etc.; used in the frame structures of modern furniture, such as bookshelves, wardrobes, desks, etc.; used in components and structures of vehicles, trains, airplanes and other transportation; used in mechanical structural parts, shells and brackets of electrical equipment.

Zhongke Testing provides aluminum profile quality appraisal services.

Aluminum profile quality appraisal can be analyzed from the following aspects:

1. Look at the surface of the profile
When we get the aluminum profile, we must first observe the surface of the aluminum profile to see if there are bubbles, scratches, dirt, etc. on the surface of the aluminum profile. We must check carefully before shipping to ensure the qualification rate of the aluminum profile.
2. Check the thickness of
. The bearing capacity of aluminum profiles is determined by the thickness of the aluminum profiles. The thickness of the aluminum profiles is invisible to the naked eye and can be measured with a vernier caliper. Profiles that do not meet the thickness requirements cannot be shipped.
3, surface color
The surface color of good-quality aluminum profiles is very uniform. Most aluminum profiles are silver-white. Customized aluminum profiles can have various styles. The color of good primary aluminum is also uniform and not dark.
4. Is there an oxide film on the surface?
A good aluminum profile will have an oxide film on its surface. The oxide film can protect the aluminum profile very well and improve the corrosion resistance of the aluminum profile. The thickness of the oxide film on the surface of poor quality aluminum profiles is relatively thin, and the aluminum profiles are easily damaged.

GB/T 3190-2008 Chemical composition of deformed aluminum and aluminum alloy
GB/T 5237.1-2017 Aluminum alloy building profiles Part 1: Base material
GB/T 5237.2-2017 Aluminum alloy building profiles Part 2: Anodized profiles
GB/T 5237.3-2017 Aluminum alloy building profiles Part 3: Electrophoretic painted profiles
GB/T 5237.4-2017 Aluminum alloy building profiles Part 4: Powder spray profiles
GB/T 5237.5-2017 Aluminum alloy building profiles Part 5: Spray painted profiles
GB/T 5237.6-2017 Aluminum alloy building profiles Part 6: Insulation profiles
GB/T 3880.1-2012 Aluminum and aluminum alloy plates and strips for general industrial use Part 1: General requirements
GB/T 3880.2-2012 Aluminum and aluminum alloy plates and strips for general industrial use Part 2: Mechanical properties
GB/T 3880.3-2012 Aluminum and aluminum alloy plates and strips for general industrial use Part 3: Dimensional deviations
0GB/T 4436-2012 Outline dimensions and allowable deviations of aluminum and aluminum alloy pipes
1GB/T 4437.1-2015 Aluminum and aluminum alloy hot extrusion tubes Part 1: Seamless round tubes
2GB/T 4437.2-2017 Aluminum and aluminum alloy hot extruded pipes Part 2: Seamed pipes
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