How to distinguish the aluminum profile materials

1. Oxidation: when buying can be lightly scratched on the surface of the profile, to see if the oxide film on its surface can be wiped off.

2. Color: the same aluminum alloy profile color should be consistent, such as color difference is obvious, that is, not suitable for purchase. Generally normal aluminum alloy profile cross-section color is silver-white, uniform texture, if the color is dark, can be concluded to recycle aluminum or waste aluminum furnace forged.

3. Flatness: check the aluminum alloy profile surface, should be no depression or drum out. Formal manufacturers processed out of aluminum profiles, flat surface, bright, if it is a small workshop due to machines or raw materials, profile surface will appear slightly bumpy, such aluminum alloy profile synthetic balcony window later easily oxidized and deformed.

4. Strength: Using the hand to bend the profile moderately, if not labored to bend the profile, then it can be determined that the strength of the aluminum profile is not up to standard.

In addition to the profile strength is not the harder the better, aluminum has a certain toughness, non-hard material, the use of this characteristic is good forging to create different shapes,

5. Thickness: commonly used 70, 90 series of aluminum window profiles, its wall thickness should be 1.2-2.0 mm. Balcony window aluminum profile wall thickness national standard is 1.2mm

6. Gloss: aluminum alloy doors and windows to avoid the purchase of surface has open air bubbles and ash slag, as well as cracks, burrs, peeling and other obvious defects of the profile. If there are the above phenomena, it can be concluded that the recovery of aluminum or waste aluminum secondary processing molding, such materials due to unearrayed texture, alloy ratio clutter, when the later easy to crack oxidation.