of die castings is a process of artificially forming a surface layer on the surface of matrix material with different mechanical, physical and chemical properties from the matrix. The purpose of surface treatment is to meet the requirements of corrosion resistance, wear resistance, decoration or other special functions of the product
For metal castings, the common surface treatment methods are: mechanical polishing, chemical treatment, surface heat treatment, surface spraying, surface treatment is to clean, clean, deburr, degrease, oxide scale, etc.
In the process of processing, transportation and storage, the surface of the workpiece is often covered with oxide scale, rust, molding sand, welding slag, dust, oil and other dirt. If the deep layer can 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 binding force and corrosion resistance of the coating and the metal, but also enable the base metal to continue to corrode even with the protection of the coating, causing the coating to flake off and affecting the mechanical properties and service life of the workpiece. Therefore, the surface treatment of workpieces before painting is an important guarantee and measure to obtain high-quality protective layer and prolong the service life of products.
Our Yixin Precision Metal and Plastic Ltd
specializes in customizing various kinds of hardware and injection-molded precision small parts
to support various surface treatments. Please feel free to contact us if you need.
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