Quality standard for aluminum alloy doors and Windows (2)
Issuing time:2021-11-16 17:13
In front, changshu City Li 'an aluminum alloy doors and Windows company small make up with everyone said the quality standard of aluminum alloy doors and Windows -- with materials, processing and price, there is a material to see, today continue to take you to understand!
There are mainly 6 aspects to refer to in material materials:
Thickness: aluminum alloy sliding doors and Windows 70 series, 90 series of two kinds, residential interior aluminum alloy sliding door with 70 series. Aluminum alloy series number represents the number of millimeters of the door frame thickness structure size. Common aluminum alloy sliding window 55 series, 60 series, 70 series, 90 series of four. The selection should be based on the size of the window hole and the local wind pressure value, and the aluminum alloy sliding window used as a closed balcony should not be less than 70 series.
⒉ Strength: the tensile strength shall be 157 Newtons per square millimeter and the yield strength shall be 108 newtons per square millimeter. When you choose and buy, you can bend the profile moderately, and it should be restored to its original state after you release it.
Color: the color of the same aluminum alloy profile should be consistent, such as obvious color difference, that is, not to buy.
(4) Flatness: Check the surface of aluminum alloy profiles. There should be no depression or bulge.
5. Gloss: aluminum alloy doors and Windows avoid the purchase of open surface bubbles (white spots) and ash (black spots), cracks, burrs, peeling and other obvious defects of the profile.
6. Degree of oxidation: the thickness of oxide film should reach 10 microns. When you choose and buy the profile surface of a light stroke, to see whether the oxide film on the surface can be erased.
Xiaobian suggestion, we must buy aluminum alloy doors and Windows to find regular professional manufacturers, you can consult us Changshu City Li 'an aluminum alloy doors and Windows company!