Six indexes of high grade aluminum alloy doors and windows

Views:2578 Author:Site Editor Publish Time:2021-01-05 08:38:27 Orgin:Site

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1. Thickness material

This index is very important for aluminum alloy doors and windows! The thickness index of different types of aluminum alloy doors and windows is also different! Specifically, there are two kinds of standard thickness of aluminum alloy doors: 70mm and 90mm; And the thickness index of aluminum alloy window is divided into 55mm, 60mm, 70mm and 90mm! In addition, it should be noted that as an aluminum alloy window with closed balcony, the window frame thickness must not be less than 70mm!

2. Profile strength

This is also very critical, aluminum alloy doors and windows used for a long time most afraid of deformation, bending and other situations; In daily use, there will be damage to the material of doors and windows due to external forces! At this time, high-grade aluminum alloy doors and windows have rigid requirements on tensile strength and yield strength! The values of the two should not be less than 157 Newtons per square millimeter and 108 Newtons per square millimeter!

3. Surface color

Color degree is mainly considered from the aesthetic point of view, there is no clear numerical index in this aspect, but in principle, the color consistency of the same aluminum alloy profile must be ensured, and no obvious color difference is allowed! This is the appearance requirement of high-grade aluminum alloy doors and windows.

4. Surface gloss

Although the color and gloss requirements are different, the difference is only one. In short, high quality aluminum alloy doors and windows are not allowed to have white opening bubbles and black slag particles on the surface. In addition, cracks, pores and other obvious defects can not exist!

5. Surface flatness

This is the best index to understand, and it is also a point that everyone will not ignore when purchasing aluminum alloy doors and windows! High quality products must ensure that the profile surface is very smooth and smooth, and there can be no uneven phenomenon, even very small!

6. Oxide film thickness

There is oxide film on the surface of high-quality aluminum alloy door and window profiles, and its thickness also has a certain index! Only products with oxide film thickness not less than 10 microns are considered excellent products! And for this index, a simple inspection method is to gently draw on the profile surface to observe whether the oxide film on the surface is completely erased. Generally, the thickness of doors and windows whose oxide film has been erased is not up to the standard.

The above six points are the most important indicators to distinguish the advantages and disadvantages of aluminum alloy doors and windows. Whether you are buying products for your own family or choosing investment brand objects, remember that these six indicators are very useful and can not be ignored. I hope they can help you!