Recycling Process of Used Sand Micro Powder in Wet Sand Casting
Addressing issues such as poor comprehensive performance of reused sand in wet sand casting,high defect rates such as sand holes and sand inclusion scars in castings,and unstable casting quality,testing and data analysis were conducted on molding sand.Through the reuse of micro powder separated by a double-disc cooling machine's cyclone separator,adjustments were made to the particle size distribution of molding sand and improvements were made to the proportion of micro powder content in molding sand.This ensures relatively stabled and controlled properties of molding sand,reduced the proportion of sand mixture additives,saved production costs,reduced the sensitivity of molding sand to moisture,promoted the flowability improvement of molding sand,enhanced the comprehensive performance of molding sand,and improved mold quality.Furthermore,it effectively reduced the risk of casting defects such as sand holes and sand inclusion scars.
万方数据
维普
