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How to choose broken bridge aluminum doors and windows?
Editor: liefan, December 20, 2019 08:00:01

The competition of home decoration market is more and more fierce.


1、 How to select bridge broken aluminum profile:


There are many factors affecting the quality of bridge broken aluminum, but there are four main factors that play a major role: first, profile material, second, profile wall thickness, third, profile insulation strip, and fourth, profile surface spraying. In order to protect everyone from being harmed by it, this paper introduces how to identify inferior products and how to choose products conforming to national standards from the following aspects: selection of profiles, selection of hardware, selection of glass and selection of dressings. Poor quality products are not cadmium treated, coating density, thickness is uneven, low adhesion.

1.1. Profile surface spraying:


Whether the profile is beautiful or not mainly depends on the spraying materials and quality. High grade products are generally sprayed with fluorocarbon, while home furnishings are mostly sprayed with powder. Powder spraying is divided into imported powder and domestic powder. National designated profile manufacturers mostly use imported powder and produce in strict accordance with national standards. Many small profile factories simplify the spraying process, and without cadmium treatment equipment, the spraying quality cannot be improved Guarantee.

In order to reduce the cost, many manufacturers use products that do not conform to the national standards when they install their homes, which causes serious security risks to customers.

At present, broken bridge aluminum doors and windows have become the products widely used in high-grade buildings in Shanghai. Plastic steel windows are nearly out of the historical stage, and are only widely used in affordable housing. Secondly, we can observe the profile cutting section. The cross section of national standard products is smooth and bright, the density is high, the luster of heat insulation strip is dim, and the alloy section density of inferior product is low, the luster is dark, and the heat insulation strip is smooth.


1.2. Thermal insulation strip of bridge breaking aluminum profile:


According to the national standard, PA66 nylon must be used. Because only the strength, temperature deformation coefficient and mechanical function of PA66 nylon are very close to that of aluminum alloy, and have good anti-aging ability, the use of PA66 nylon thermal insulation strip can ensure that there is no dislocation between the heat insulation strip and the aluminum alloy in case of temperature change and mechanical deformation, so as to ensure the overall strength and durability of the product.


1.3 profile material:


According to the national standard of building materials, aluminum alloy grades of 6063 or 6061 should be used for bridge breaking aluminum profiles, which have good stiffness, strength and corrosion resistance. At present, some illegal profile factories use industrial aluminum alloy or recycled aluminum alloy extrusion profiles, whose strength, stiffness and corrosion resistance function are much lower than the national standard. If such materials are used, great hidden dangers will be left.


1.4. How to identify inferior profiles:


The price of inferior profiles is 10-20% lower than that of national standard products. Once used, the loss to customers is immeasurable. How can we identify them??


The first choice is to ask the manufacturer to provide the product invoice, production license and product factory certificate of the profile factory, and check whether the profile package is consistent with the document in the door and window factory. Many home decoration manufacturers have come to the market as the first choice for aluminum doors and windows. The coating thickness of national standard products is large and uniform on average. Before spraying, the metal surface is cadmium treated, and the process is yellowish, and the coating has strong adhesion. At present, many manufacturers in the home decoration market choose PVC plastic heat insulation strip products. Because the strength of PVC is far lower than that of aluminum alloy, the deformation coefficient is much different from that of aluminum alloy, and the anti-aging ability is general, so the use of this type of material will seriously affect the safety and service life of doors and windows.

Aluminum alloy doors and windows enterprises take advantage of the strength to face the pain spot   [ Back to home page ] [ Printing ] [ Back to previous page ]    We do door and window engineering companies to understand these three points

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