Broken bridge aluminum doors and windows the fashion trend is getting better and better, but the market is mixed with fish, many brands and different prices. Why,? It is not unreasonable for the elders to say that you get what you pay for, so how can we distinguish the advantages and disadvantages of broken bridge aluminum? How can we consumers not be cheated?
1. Profile surface quality
the quality of the profile can be observed from the surface of the Broken Bridge aluminum profile. The surface of the good Broken Bridge aluminum profile is glossy and textured, and the surface spraying color treatment will also be natural, which makes you feel smooth; The surface of the second broken bridge aluminum doors and windows is rough, it is not shiny and looks unnatural. After using it for a period of time, the color will change or fade if the difference is broken bridge aluminum doors and windows, and the color is not full.
2. Look at the profile section structure
good broken bridge aluminum door & window profile the geometric angle of the section is accurate, the profile will not be bent and twisted, and the angle is correct. And the thickness of the section is sufficient, for example, the broken bridge aluminum doors and windows of the 60 model you customized, 60 means that the thickness of the profile is 6 centimeters, and these 6 centimeters are divided into full broken bridge aluminum material, and the proportion of threading is small; compared with broken bridge aluminum doors and windows, it will
60 profiles with virtual support are used, and the thickness is supported by wearing strips. The material of aluminum is relatively small.
3 Heat insulation strip
the glass fiber reinforced polyamide nylon (PA66) insulation strip, which has been widely recognized for decades, is replaced by the general plastic-polyvinyl chloride (PVC) insulation strip, which can only be used for non-structural materials, which is clearly stipulated by the relevant State departments with low cost, because the expansion coefficient of PVC (8.3*10-5K-1) is far from the linear expansion coefficient of aluminum alloy (2.35*10-5K-1), and its strength is low (only about 30N/mm2), poor heat resistance (80℃), many defects, such as poor aging quality resistance, lead to the thermal insulation doors and windows made of insulated aluminum profiles made of PVC thermal insulation strips through strips. After actual installation and use, due to thermal expansion and contraction, PVC thermal insulation strips will loosen in aluminum profiles, even completely separated, light will lead to loose and deformed windows, thus damaging the air tightness and water tightness of doors and windows, while heavy will lead to loose and separated windows as a whole.
The picture shows the sample angle of Zhongwang 70# Profile and pa66 heat insulation strip. If you don't know which one to choose, it is a very good choice for you to choose us, which will definitely give you the best quality products, the most thoughtful price.
60 profiles with virtual support are used, and the thickness is supported by wearing strips. The material of aluminum is relatively small.
3 Heat insulation strip
the glass fiber reinforced polyamide nylon (PA66) insulation strip, which has been widely recognized for decades, is replaced by the general plastic-polyvinyl chloride (PVC) insulation strip, which can only be used for non-structural materials, which is clearly stipulated by the relevant State departments with low cost, because the expansion coefficient of PVC (8.3*10-5K-1) is far from the linear expansion coefficient of aluminum alloy (2.35*10-5K-1), and its strength is low (only about 30N/mm2), poor heat resistance (80℃), many defects, such as poor aging quality resistance, lead to the thermal insulation doors and windows made of insulated aluminum profiles made of PVC thermal insulation strips through strips. After actual installation and use, due to thermal expansion and contraction, PVC thermal insulation strips will loosen in aluminum profiles, even completely separated, light will lead to loose and deformed windows, thus damaging the air tightness and water tightness of doors and windows, while heavy will lead to loose and separated windows as a whole.
The picture shows the sample angle of Zhongwang 70# Profile and pa66 heat insulation strip. If you don't know which one to choose, it is a very good choice for you to choose us, which will definitely give you the best quality products, the most thoughtful price.