I wonder how everyone understands surface treatment? In fact, surface treatment is a process method that artificially forms a surface layer with different mechanical, physical and chemical properties of the substrate on the surface of the substrate material. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. So, how to professionally understand the narrow sense of surface treatment? Take a look at the analysis below.

Generally speaking, there are two kinds of surface treatment, one is surface treatment in a broad sense, and the surface treatment agent is a process method including pretreatment, electroplating, painting, chemical oxidation, thermal spraying and many other physical and chemical methods.

One: Surface treatment in a narrow sense, only including sandblasting, polishing, etc., which is the pre-treatment part we often say.

So, what is the surface treatment in the narrow sense?

In the process of processing, transportation, storage, etc., the surface of the workpiece often has oxide scale, rust molding sand, welding slag, dust, oil and other dirt.

In order for the coating to be firmly attached to the surface of the workpiece, the surface of the workpiece must be cleaned before coating. Otherwise, it will not only affect the adhesion and corrosion resistance of the coating and the metal, but also make the base metal continue to corrode even under the protection of the coating. The coating peels off, affecting the mechanical properties and service life of the workpiece.

Through the above analysis, do you understand what is the narrow sense of surface treatment? The surface treatment of the workpiece before painting is an important guarantee and measure to obtain a high-quality protective layer and prolong the service life of the product.