Imagine steel grating manufacturers have encountered such awkward problems, that is, when the steel grating products have been hard to reach the buyers, the buyers said that the quality and appearance of the steel gratings and the manufacturer It is said that there is a great expectation that the steel grating manufacturers have encountered such awkward problems. That is, when the steel grating products have been hard to reach the purchasers, the buyers say that the quality of the steel gratings There is a big difference between the appearance and the manufacturer's description, and there are even some products with serious surface phenotypes, which leads to factors that do not match the manufacturer and the buyer, which makes the steel grating manufacturing enterprises face a crisis of trust. . Most of the quality problems are in the edging, diagonal, and horizontal bars of steel grating products. These parts have special significance for steel grating products. Once these parts have problems, they will It has a certain impact on the application and sale of steel grating products by buyers. In serious cases, it will also lead to legal disputes and other issues. However, the question is, what is the cause of the sudden change in the quality of the steel grating?
1, surface treatment
The most widely used processing technology for steel grating products is hot-dip galvanizing treatment. This process is immersed in high-temperature zinc liquid, so that the steel grating products have zinc layer to achieve anti-corrosion and rust-preventing and long service life. . However, at this high temperature, the deformation of the steel grating product may occur more or less, especially after the steel grating is formed, subjected to a violent impact, under the influence of such physical stress conditions. The deformation of the steel grating will be particularly obvious.
2, internal stress
In the steel grating plate body, when subjected to special treatment, there will be strong internal stress inside, which is caused by irregular volume change of the fine structure inside the material. Therefore, the steel grating product may be Under the guidance of this physical kinetic energy, surface pits occur. The level of the shape of the flat steel structure will be changed to a 'bow' shape.
3, transportation itinerary
During the transportation process, it is inevitable that the steel grating will encounter bumps and bumps all the way. The reason is due to the influence of road conditions and packaging materials, which makes the steel grating products suffer from extrusion during transportation. The interference of external force factors such as collisions causes the deformation of the steel grating product to occur.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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