Optimum Design of Metal Mold Gravity Casting Process of Positioning Support
Author of the article:WANG Aiming
Author's Workplace：China Railway Construction and Electrification Bureau Group Rail Transit Equipment Co.,Ltd.,Changzhou 213179,China
Key Words：contactnet positioning support body casting process metal mold casting
Abstract：The casting process of the positioning support body was designed and optimized.The structure and cross-sectional area of the pouring system were determined by formula calculation.The cross-sectional area of the inner sprue was increased to 2453 mm2 and the height of the straight sprue was extended to 120 mm.The results show that the casting defects can be eliminated by optimizing the structure of the casting system to ensure that there is enough liquid aluminum to supplement the defective parts in the mold filling process.Products meet the technical standards,reduce the cost of production and manufacturing process,product qualification rate of more than 95%.
