Подземные буровые установки
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.
In various industrial settings, the need for efficient and reliable pumping systems is paramount. One of the most effective solutions available in the market today is the rubber-lined pump. Designed to handle a wide range of materials, from abrasive slurries to corrosive chemicals, these pumps offer unparalleled durability and performance. This article will explore the features, advantages, and applications of rubber-lined pumps, emphasizing their significance in modern industries.
Content introduction
Problem: pump does not water, pressure gauge and true empty meter pointer beat violently.
Problem: pump does not water, pressure gauge and true empty meter pointer beat violently.