Грязная насосная крышка
1. 건설 현장 굴착기, 해머 드릴, 페인트 스프레이어 등 다양한 도구들이 필요로 하는 압축 공기를 제공합니다. 특히 대형 건설 프로젝트에서 여러 도구를 동시에 사용할 수 있어 생산성을 크게 향상시킵니다.
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.
