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以无线自组网结构用ZL101铝合金为研究对象,分析了无振动、垂直振动、水平振动和复合振动方式下合金消失模铸件的凝固组织和力学性能的变化规律。结果表明,机械振动后合金的组织得到明显细化,尤其是在垂直振动方式下合金的晶粒尺寸最小,针孔率最低,合金的抗拉强度最大,是较为适宜的振动方式;在不同厚度的铸件振动过程中,铸件厚度越大则振动细化效果越显著。
Taking ZL101 aluminum alloy as the research object, this paper analyzes the variation regularity of the solidification microstructure and mechanical properties of alloy lost foam castings under vibration-free, vertical vibration, horizontal vibration and composite vibration mode. The results show that the microstructure of the alloy is obviously refined after mechanical vibration. Especially in the vertical vibration mode, the grain size of the alloy is the smallest, the pinhole rate is the lowest and the tensile strength of the alloy is the largest. Of the casting vibration process, the greater the thickness of the casting vibration attenuation effect is more significant.