How to identify high-quality industrial aluminum profile
? 1. Oxide film thickness—the thickness is not enough, the aluminum surface is easy to rust and corrode. The thickness of the national standard building and industrial aluminum profile oxide film should not be less than 10um (micrometer). Some attribute names, addresses, production licenses, certificates of industrial aluminum profiles, the thickness of the film is 2 to 4um, and some even have no film. According to expert estimates, every reduction of 1um oxide film thickness can reduce power consumption by more than 150 yuan per ton of material. Two kinds of chemical composition, mixed with a large amount of waste aluminum, industrial aluminum profile profile can greatly reduce the cost, but it will lead to the unqualified chemical composition of industrial aluminum, which seriously endangers the safety project. 3 The thickness distribution is roughly the same size drawing, as well as the section size, width, and center hole, but the wall thickness is very different, and it can also be quite different weights, and the price of each is also correspondingly large. In addition, the lower industrial aluminum can reduce some closing time, reduce the consumption of chemical reagents, and reduce the cost, but the corrosion resistance of the material is greatly reduced. 4. Manufacturers-large aluminum profile factories, raw materials, production process standards, strict quality control, processing fees are higher than small manufacturers, processing fees can vary by 2000-3000/ton. Reduce 2-3 yuan/kg. In recent years, with the level of industry, the aluminum industry is becoming more and more popular. Sales are also diversified, with huge price disparity. Unknown customers will only choose industrial aluminum sales companies from the lowest price. This forces some companies that insist on quality first to ensure sales from lower raw material and processing costs, and market chaos is becoming more and more obvious. ————The article comes from the Internet. If there is any infringement, please contact to delete it.
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