适流浇注系统在铝合金汽车转向泵铸造上的应用  

Application of Naturally-Pressurized Running System to Aluminum Motor Steering Pump Casting

作　　者：张守银[1] 沈刚[1,2] 徐志锋[1] 

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063 [2]中航一集团国营143厂,贵州贵阳550009

出　　处：《铸造》2012年第7期790-793,共4页Foundry

摘　　要：通过应用数值模拟方法对汽车转向泵铸造充型过程出现的渣孔等缺陷进行分析,并应用适流浇注系统原则对铸件浇注系统进行了改进和优化,铸造的充型条件得到了改善,废品率由改进前的26.4%降至5.34%,验证了适流浇注系统对铝合金铸件的适用性。The defect such as slag hole appeared at cavity filling stage of motor steering pump was simulated. Naturally-pressurized running system was used to optimize the design of running system. The filling condition of casting was improved, the reject rate decreased from 26.4% to 5.34%; hence the naturally-pressurized running system was proved suitable for aluminum alloy casting.

关 键 词：适流浇注系统 汽车转向泵 渣孔 数值模拟 

分 类 号：TG292[金属学及工艺—铸造]