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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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铝合金熔体泡沫化过程中粘度的变化
Keywords: 金属材料,熔体泡沫化,粘度,实时检测,高孔隙
Abstract:
？用新型旋转扭矩探测仪对铝合金熔体增粘过程中的粘度进行了实时检测和控制,研究了熔体粘度的变化规律以及粘度对孔结构的影响规律.结果表明,在铝合金的增粘过程中粘度的变化与生长曲线类似;熔体的粘度过高使胞孔小、数量多;而粘度过低则相反.铝合金熔体泡沫化过程的最佳粘度值为27$\sim$28mn$\cdot$m,可以获得孔结构高度均匀、高比强的泡沫铝合金.
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