Application of Chromite sand in the Production of Steel Castings for Pumps and Valves

Application of Chromite sand in the Production of Steel Castings for Pumps and Valves？
Analyze the casting defects such as shrinkage, porosity, cracks and surface sticky sand in the production of pump valve steel castings, and combine the material, structure and distribution of hot spots to try to replace chromite sand in actual production. Improve and achieve better results.Analyze the casting defects such as shrinkage, porosity, cracks and surface sticky sand in the production of pump valve steel castings, and combine the material, structure and distribution of hot spots to try to replace chromite sand in actual production. Improve and achieve better results.