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It is important to know that the shape of the sand has an important impact on the surface finish of the casting. Circular sand is better than triangular sand because the triangular sand has a large gap, which is easy to lead to defects such as porosity; According to the nature of the casting, the sodium silicate quartz sand is selected to form a spalling layer, and combined with the characteristics of cooling and shrinkage of the casting, the surface defects are reduced. Coating a protective layer on the surface of large castings, such as the film on a coated sand mold, can improve the surface finish of the sand mold and reduce the surface defects of the casting.  

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Air compressors are essential tools in a myriad of industries, providing the necessary power for various pneumatic tools and equipment. Among the different models available on the market, the CFM 185 air compressor stands out due to its powerful performance, reliability, and versatility. This article aims to delve into the features, applications, and benefits of the CFM 185 air compressor, establishing why it is a favored choice for both professionals and hobbyists alike.


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