Aluminum windows and doors of the six indicators of material

Progress of the times , many people have begun to focus on quality of life, ease and comfort of home environment has become more concerned about the field , so in recent years , aluminum doors and windows has been favorable for consumers , almost anywhere in life you can see to its presence , today Xiaobian to continue to spread information on the six indicators of material aluminum windows and doors .

1 , Thickness: aluminum sliding doors , 70 series, 90 series are two residential interior aluminum sliding doors with 70 series can be. Series number indicates the thickness of the door frame structure dimensions in millimeters . Aluminum sliding windows , 55 series, 60 series, 70 series , 90 series of four. Series selection should be based on the size and the local wind pressure or windows depending on the value . As a closed veranda aluminum sliding windows should not be less than 70 series.

2 , Strength : Tensile strength should reach 157 Newtons per square millimeter , the yield strength to reach 108 Newtons per square millimeter . When you purchase , you can hand moderately curved profiles, let go after the state should be able to recover .

3 , color : Aluminum Alloys with a color should be the same, such as color obviously , that should not be optional .

4 , flatness : Check the aluminum alloy surface , there should be no dents or bulges .

5 , gloss : aluminum windows and doors opening to avoid bubbles optional surface ( white dots ) and ash ( black spots ) , as well as cracks, burrs , peeling and other obvious defects profiles.

6, the oxidation degree : an oxide film thickness of 10 microns. When you purchase may be scratching the surface of the profile look to see whether the surface of the oxide film can be erased .