the experiments to explore the rheologic properties of semisolid continuous casting billets of a356 alloy in the semisolid state have been carried out by means of the multifunctional rheometer.
通过分析深小锥孔开式冷挤压成形特点 ,描述了其成形极限 ,建立了变形区非稳态连续速度场 ;利用上限原理得到了成形极限的理论模型。
the defect of extrudate in the extrusion process in the form of melt fracture could only be evidenced in the semisolid state of pp melt.
在挤出过程中,以熔体破裂形式出现的挤出物的缺陷只有在pp熔体处于半固体状态时才能观察到。
the microstructure of magnesium alloy melt under different disturbed treatment in semisolid state was studied.
研究了镁合金熔体在半固态温度区间进行不同扰动处理后铸件的组织特征。