Selection Of Aluminium Alloy Bridge Should Pay Attention To The Main Points

Release time:

2025-06-13

Now the extensive use of aluminium profiles, resulting in a part of the business speculation, cutting corners in the production process or mixed with inferior materials, to produce some inferior profiles, on the customer, these inferior products in the use of the process will constitute a great impact. And the natural nature of the soft, strong hardness, the surface has a certain degree of gloss, while poor quality aluminium profiles are easy to brittle, the use of life will be greatly reduced.

How to buy to the quality of aluminium profiles it, let us teach us how to distinguish between poor quality aluminium profiles, I hope that our knowledge will help you. There are the following characteristics need to pay attention to: kneading defects: aluminium profile kneading process due to the kneading equipment is complete, kneading process is old and whether the operation is inappropriate, there will be a bubble, admixture, into the layer, chromatic aberration, curvature and other defects, affecting the quality of aluminium profiles.

Oxide film thickness is thin: the national standard rules building aluminium profile oxide film thickness should be not less than 10um (micron). Thickness is not available, the surface of aluminium profiles are easy to rust, corrosion. Sampling test some of the aluminium profiles without production name, address, production license, certificate of conformity, the thickness of the oxide film is only 2 to 4um, some even no oxide film. According to the expert budget for each reduction of 1um oxide film thickness, each tonne of profiles can reduce the cost of electricity consumption of more than 150 yuan.

Chemical composition is unqualified: mixed into many miscellaneous aluminium, scrap aluminium aluminium profiles can greatly reduce the cost, but will lead to the building of aluminium profiles chemical composition is unqualified, a serious danger to the safety of construction projects. Unqualified aluminium profiles, will be many to reduce the closure time, reduce the loss of chemical reagents, the cost down, so that the profile corrosion resistance function is also greatly reduced by the air, rain, sunlight and other influences, resulting in deformation of aluminium profiles, and even constitute a glass splitting, falling and other phenomena.

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