How to choose high-quality aluminum extrusion profiles?


How to choose high-quality aluminum extrusion profiles?


Our door and window system includes five major systems, which are profiles, glass, hardware, sealing and accessories. So, what is the aluminum extrusion profiles of a good door and window system?


When we talk about aluminum extrusion profiles, we will mention the four commonly used data are code name, meter weight, overall size and wall thickness.


The profiles we mentioned here mainly refer to aluminum extrusion profiles for doors and windows. Our Aluminum Window uses aluminum extrusion profiles with a grade of 6063 and a supply status of T5. It is widely used in the frames of aluminum doors, windows and curtain walls in buildings. Common aluminum extrusion profiles including substrates, anodized profiles, electrophoretic painted profiles, powder sprayed profiles, fluorocarbon paint sprayed profiles, heat insulation profiles (PA66GF25 heat insulation strips).


Then, what effect can the aluminum extrusion profiles with the grade 6063 and the supply state of T5 bring to users? As we all know, profiles contain a lot of chemical elements, and the content of iron has a great influence on the quality of the profile surface. One of the effects is that the binary alloy of Fe and Al affects the grain structure, and the other is that the presence of Fe element will have an affinity with the mold. And, so that mold marks are produced on the surface of the profile. In order to reduce the influence of iron elements on the profile surface, the aluminum extrusion profiles with low iron content, grades 6060 and 6063 are more suitable for the production of doors and windows.


So what are the characteristics of aluminum extrusion profiles? It has ductility, thermal conductivity, electrical conductivity and passivation reaction. What are they do

Ductility – aluminum can be drawn into rods and wires

Thermal conductivity - under the condition of satisfying the heat dissipation performance, the selection of aluminum alloy can improve the strength of heat dissipation parts

Conductivity - the oxide film on the surface of aluminum not only has the ability to resist corrosion, but also has a certain degree of insulation

Passivation reaction——through the chemical reaction between aluminum and aluminum passivation solution, the active aluminum metal surface becomes an inert surface layer, thereby preventing external destructive substances from reacting with the metal surface and prolonging the rusting of aluminum materials purpose of time


For the production process, our profiles have gone through the steps of design, mold, casting, extrusion, surface treatment, compounding, machining, accessories installation and bundled delivery. The steps are closely connected and each production link is strictly handled to ensure the quality and performance of our profiles.


Finally, you may concerned that how to judge the quality of profiles? You can judge from mechanical properties, dimensional deviation, appearance quality and decorative surface. Among them, the mechanical properties include four aspects: tensile strength, elongation at break, Vickers hardness and Webster hardness. The higher the elongation at break, the less likely it is to break. Dimensional deviation includes five aspects: cross-sectional size, length, camber, twist, and cut-off angle.


In addition to the first time, when purchasing aluminum alloy profile products, many consumers usually have a misunderstanding: the thicker the aluminum wall thickness exceeds the national standard, the better the product quality is, in fact it is not the case.


According to technical personnel, the national standard for product wall thickness is the standard to ensure product safety and performance, and is set in accordance with the requirements of energy conservation and environmental protection. It does not mean that the thicker the product wall thickness, the better the product quality.


The appropriate thickness of aluminum alloy doors and windows is not selected according to the minimum wall thickness of the national standard, but is selected according to the size of the door and window opening, the wind pressure value, and the air-tightness and water-tightness of the designed doors and windows. In the case of ensuring product safety, performance, environmental protection and other requirements, it is not that the thicker the wall thickness of the door and window profiles, the better the product quality.


Because the wall thickness of the profile is too thick, it cannot guarantee the air tightness and water tightness of the product, and the product quality will be high. On the contrary, it will cause excessive waste of resources. And there are more consumables for products that are too thick than products that meet the national standard, which will inevitably bring about high product prices and bring unnecessary economic burdens to consumers.


Our company has specialized in door and window systems for more than 20 years and has rich experience in doors and windows. If you want to design a door and window that suits your home, please contact us, and we will give you a professional door and window solution.



So, do you know about our Aluminum Window profiles? I believe that after the above description, you have a certain understanding of the profiles of our doors and windows. If you choose high-quality doors and windows, you can trust Aluminum Window. If you have any questions, please feel free to contact us. Looking forward to cooperating with you in the future.

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