vertical centrifugal

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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In summary, the 20mm drill rod is a vital component of modern drilling technology, valued for its versatility, efficiency, and compatibility with various applications. Its unique characteristics enable it to excel in multiple industries, including mining, construction, and environmental assessment. As technology continues to advance, the development and optimization of drill rods like the 20mm will undoubtedly play a crucial role in shaping future drilling practices. By understanding the benefits and applications of these rods, professionals can make informed decisions that enhance productivity and efficiency in their respective fields. Whether for geological exploration or construction projects, the 20mm drill rod proves to be an indispensable tool in the modern engineer's arsenal.


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