Application Study of 3D Sand Printing Technology in Multistage Pump Casting 在线阅读 下载PDF
Author of the article:XU Jikun;LIU Kexin;ZHENG Fei
Author's Workplace：Luoyang Sunrui Special Equipment Co.,Ltd.,Luoyang 471000,China
Key Words：3D printing technology multistage pump whole sand core
Abstract：
Taking the integral sand core of multistage pump as an example, the status quo of traditional manual sand molding process was analyzed from the aspects of core making, box closing and mold storage. The application of ink-jet3 D printer in multistage pump sand mold casting was introduced. The results show that compared with the traditional manual mold making, the 3 D printed sand mold has smooth surface, uniform and consistent appearance, good quality, no obvious defects, and the strength can meet the production requirements. The casting runner size is verified by 1 ∶1 sand mold ratio, and the surface quality of casting runner is obviously better than that of manual core, without casting defects such as split seam, flow mark, sand hole, scar and lack of flesh. 3 D sand printing reduces the manufacturing process, saves time and raw materials, improves the dimensional accuracy and surface quality of castings, and reduces the production difficulty of complex structural products.
