Wuxi Dongao Nonferrous Casting Co., Ltd.
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Reasons for the rough surface of the angle globe valve body casting
- Nov 23, 2018 -

The roughness of the surface of the casting is an important factor in detecting the quality of the casting of the angle valve body, and there are many factors affecting the surface roughness. It not only includes the roughness of the casting material itself, but also the casting process used in the casting production process. First of all, from the material of stainless steel castings, the surface roughness of stainless steel castings is largely due to the quality of the surface of the stainless steel itself.


Secondly, it is the manufacturing cause. The casting process is an important process when casting the angle globe valve body castings. The process parameters such as pouring temperature of metal liquid, pressure head and vacuum degree during casting have an influence on the surface roughness of the casting, especially the influence of type temperature and pouring temperature.


In addition, for angle globe valve body castings, the profile and the surface quality of the investment have a certain relationship to the surface roughness during the casting process. The surface roughness of the investment mold is the most important part affecting the surface roughness of the casting, and it is related to the surface quality of the molding, the compression molding method and the pressing process parameters.