Stainless steel grating is widely used due to its high corrosion resistance and decorative properties, especially in the medical industry, food industry, kitchen utensils, etc.
Most people think that stainless steel grating will not rust. In fact, it is the same as many other metals. Stainless steel grating will also be oxidized and rusted when it is touched by hands or exposed to the air and is affected by the environment. In addition, after the surface of stainless steel grating is processed by mechanical processing such as welding, stamping, heat treatment and other processes, a black oxidative deterioration and hardening layer is formed. At the same time, many tiny burrs and sharp-angled burrs that are visible and invisible to the naked eye are formed. Under normal circumstances, it is difficult to remove them using mechanical methods, which affects the performance of the properties of the workpiece material itself. In order to solve these problems, people use various methods to polish the surface of stainless steel gratings and other surfaces.
Reasons for oxidation: A layer of black or gray oxide scale will form on the surface of stainless steel grating after thermal processing, mechanical processing or being left for a certain period of time, which affects the performance of the product, so appropriate measures must be taken to remove it. There have been many reports on surface treatments such as oxide scale removal and polishing of stainless steel gratings. Stainless steel polishing, as a mature surface treatment method, has been widely used. Polishing can further improve the corrosion resistance of stainless steel gratings. and glossy effects.
Chemical polishing: Chemical polishing is a commonly used surface treatment process for stainless steel gratings. Compared with the electrochemical polishing process, its advantage is that it does not require DC power supply and special fixtures, and can polish workpieces with complex shapes. The productivity is very high. Functionally, Chemical polishing can not only obtain physical and chemical cleanliness on the surface, but also remove the mechanical damage layer and stress layer on the surface of the stainless steel grating to obtain a mechanically clean surface, which is beneficial to preventing local corrosion, improving mechanical strength and prolonging the stainless steel The service life of steel grating.
Stainless steel grating welding skills:
Before welding, you should first check the flatness of the flat steel. Some stainless steel flat steels are uneven when they leave the factory. Such flat steel will be very troublesome when welding, and it will not be flat even after it is welded and formed.
It is for the manufacturer's own benefit to select the material according to the external dimensions required by the customer, because the sizes of stainless steel flat steel are relatively complex, unlike ordinary materials that are 6 meters when shipped from the factory. Stainless steel flat bars are available in various sizes, but if you choose them incorrectly, a lot of raw materials will be wasted.
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