【摘要】 研究了电磁充型铸造对铝合金铸件组织性能的影响。利用正交试验和金相分析的方法,确定了主要影响因素。试验结果表明:电流磁场强度和循环时间对于ZL104铸件性能影响程度大小的顺序是磁场强度>电流>循环时间;在电磁场作用下ZL104合金铸件的金相组织细化、力学性能有显著提高。更多还原

【Abstract】 Effects of electromagnetic filling on microstructure and properties of Al alloy components in low pressure castings were investigated. The key influential factors on microstructure and properties of the Al alloy components were determined by orthogonal testing and metallographic analysis. The results show that the influential orders of electric current, magnetic inductivity and cyclic time on the properties of the ZL104 alloy components are as follows: magnetic inductivity, then electric current, and then cyclic time. Electromagnetic field can effectively refine the microstructure of the components, significantly improving the mechanical properties of the ZL104 alloy components in low pressure casting.更多还原