To predict the segregation effect in metal injection moulding(MIM) injection，a bi-phasic model based on mixture theory is adopted in simulation．An explicit algorithm is developed and realized bv the authors， which conducts the simulation to be a cost-efective tool in MIM technology． In case of the bi-phasic simulation， the viscosity behaviours are necessary to be detennined for the flows of each phase while only the viscosity of mixture is measurable by tests．It is a cmcial problem for application of the bi-phasic simulation of MIM injection．A reasonable method is hence analysed and Droposed to determine the viscosity behaviours of each phase． Even though this method may be furthermore modified in the future， it results in the practical simulation of segregation efiects with reasonable parameters． The simulation results are compared with the measurements on injected specimens．
metal injection moulding，bi-phasic simulation，viscous behaviours，mixture theor
你的回答比较靠谱。求下文……
追答the viscosity behaviours are necessary to be detennined detennined？
在该双相仿真中，有必要为每相速率选定粘性系数，而只有混合粘性系数可通过实验测定。这对于MIM注射双相仿真的应用，是个关键问题。本文由此分析一种合理方法来测定每一相的粘性系数。尽管此方法还有待将来改进，它目前能实现采用合理参数来仿真隔离效应。仿真结果将与注射标本，金属注射成型，双相仿真，粘性参数，混合理论进行比较。
太感谢了！
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