How to distinguish the pros and cons of aluminum alloy profiles for doors and windows of the system?


Release time:

2020-09-14

A good system doors and windows, when building it, to split it, in accordance with the order of one by one perfect, and ultimately make the product to the perfect debut. And one of the most important part is the selection of aluminum alloy profiles, today to explore the purchase system doors and windows, how to distinguish the pros and cons of aluminum alloy profiles!

A good system door and window, when building it, it should be split up and perfected one by one in order, so that the product can finally come on stage perfectly. And one of the most important part is the selection of aluminum alloy profiles, today to explore the purchase system doors and windows, how to distinguish the pros and cons of aluminum alloy profiles!

oxidation degree: the thickness of the oxide film should reach 10 microns. when purchasing, you can lightly scratch the surface of the profile to see if the oxide film on the surface can be wiped off. of course, this should not be carried out directly on the sample window.

color:

the same root aluminum alloy profile color should be consistent, such as color difference is obvious, that is not suitable to buy. General normal aluminum alloy section color is silvery white, uniform texture, if the color is dark, can be concluded as recycled aluminum or scrap aluminum furnace forging.

Flatness:

Check the surface of the aluminum alloy profile, there should be no depression or bulge. The surface of the aluminum profile processed by the regular manufacturer is flat and bright. If the surface of the profile in a small workshop is slightly concave and convex, the balcony window made of such aluminum alloy profile is easily oxidized and deformed in the later stage.

Strength:

The tensile strength should reach 157 Newtons per square millimeter, and the yield strength should reach 108 Newtons per square millimeter. When purchasing, you can bend the profile moderately by hand. If you bend the profile without effort, you can determine that the strength of the aluminum profile is not up to standard. In addition, the strength of the profile is not as hard as possible. Aluminum has certain toughness and non-hard materials. This characteristic is good for forging into different shapes.

Thickness:

Commonly used 70, 90 and other series of aluminum window profiles, the wall thickness should be 1.2-2.0mm, balcony window aluminum profile wall thickness national standard is 1.2mm, but for high floors and consumers who want to be more transparent and landing, it is recommended to choose a wall thickness higher than this standard.

Gloss:

Aluminum alloy doors and windows avoid purchasing profiles with obvious defects such as open bubbles (white spots) and ash (black spots) on the surface, as well as cracks, burrs, peeling, etc.