直流电磁泵在低压铸造复杂铝铸件中的应用
Application of Direct Current Electromagnetic Pump in Low-pressure Casting for Complex Al-alloy Wheel
刘 云， 杨 晶， 党惊知
点击：3674次 下载：0次
作者单位：（中北大学 材料科学与工程学院，山西 太原 030051）
中文关键字：电磁泵； 低压铸造； 铝铸件
英文关键字：electromagnetic pump； low-pressure casting； aluminum casting
中文摘要：对自主研发的直流电磁泵的静压头?驻P、流量Q与电极电流I的关系进行了研究。结果表明，在磁感应强度一定的情况下，静压头与电极电流成线性关系；而流量与电极电流成二次函数关系。结合车用发动机增压器叶轮复杂铝铸件结构特点，确定了电磁泵充型低压铸造生产工艺。对铝铸件性能检测表明，采用该技术生产的复杂铝铸件综合力学性能良好。
英文摘要：The relationship between static pressure ?驻P, current capacity Q and electrode current I in self-made direct current electromagnetic pump was researched. The results show that, in a certain condition of magnetic induction intensity, ?驻P and I presents linear relation; Q and I presents quadratic function relation. Considering the structure characteristic of turbo-charge blade wheel of complex aluminum alloy in vehicle engine, the production process for electromagnetic pump low-pressure coasting is determined. The complex aluminum castings produced by this technique have good comprehensive mechanical properties.