Customer requirements are relatively high, the casting requires a smooth surface, clear casting, especially to have dense organization, there should be no porosity, shrinkage, porosity, cracks and sand and other defects. In order to meet the above requirements, a series of process measures should be taken during casting, such as the selection of high refractory molding materials and the control of sand moisture, the modeling should be stratified to ensure the hardness of the sand, the use of a reasonable gating system and strict control of pouring speed and temperature. But the point is. Due to high technical requirements, the casting process of the valve is more complex than that of general castings. In order to obtain qualified product quality, the corresponding castings need heat treatment to eliminate the stress during the casting process, while using X-ray, magnetic particle detection, penetration inspection and other detection methods.

Jinbin Valve is a professional R & D, production, sales of valve manufacturers, science, industry, trade as one of the enterprises. The main production knife gate valve, gate, plug valve, blind valve and other specifications of products. Over the years, Jinbin Valve focus on the field of valve manufacturing, adhere to independent innovation.