Aluminum Alloy Doors and Windows

A Look at the Price

Under normal circumstances, high-quality aluminum alloy doors and windows due to high production costs, the price is about 30% higher than inferior aluminum alloy doors and windows.

Second Look Processing

High-quality aluminum alloy doors and windows, fine processing, installation stress, good sealing performance, switch freely.

Three to See the Materials

The aluminum profiles used in high-quality aluminum alloy doors and windows, thickness, strength, and oxide film shall comply with relevant national standards.

Fourth, Look at the Material

There are six main aspects in the materials used for reference:

1. Chromaticity: The color of the same aluminum alloy profile should be consistent, such as obvious color difference, that is not suitable for purchase.

2. Thickness: There are 70 series and 90 series aluminum alloy sliding doors. The 70 series aluminum alloy sliding door inside the house can be used. The series number indicates the thickness of the door frame thickness in millimeters. Aluminum alloy sliding window has 55 series, 60 series, 70 series, 90 series four. The series selection should be based on the size of the window hole and the local wind pressure value. Aluminum Sliding Windows used as closed balconies should not be smaller than the 70 series.

3. Strength: The tensile strength should be 157 Newtons per square meter and the yield strength should be 108 Newtons per square millimeter. When you buy, you can use your hands to bend the profile moderately, and you should be able to recover after loosening your hands.

4. Gloss: aluminum alloy doors and windows to avoid the purchase of surface bubbles (white spots) and ash (black spots), as well as cracks, burrs, peeling and other obvious defects in the profile.

5. Degree of oxidation: The thickness of the oxide film should reach 10 microns. When you purchase, you can lightly stroke the surface of the profile to see if the oxide film on the surface can be wiped off.

6. Flatness: Check the surface of aluminum alloy profile, there should be no depression or bulging.

Note: The good quality of aluminum alloy doors and windows is only the first step, and daily maintenance must be done well. To ensure the use period.