摘要
将粉末注射成形喂料在簿壁模腔中的流动视为层状二维流动,以喂料流动的守恒方程组为基础,建立描述粉末注射成形喂料充模流动的数学模型。推导了喂料熔体流导率的计算公式,得出压力场的控制方程是一非线性椭圆偏微分方程。使模型的计算成为可能,为进一步对粉末注射成形进行计算机模拟和数值分析奠定了数学基础。
Powder injection molding filling process analysis is based on two-dimensional layer flows assumptions for thin cavity filling under non-isothermal conditions. The mathematical model that describes the PIM filling process is created, and the formula for calculating the flow conductance is deduced. The pressure equation for the liquid phase is obtained as which is a no-linear elliptic partial differential equation. It makes it possible for the model solution and lays a mathematical foundation for further analysising the PIM moulding filling flow.
出处
《工程数学学报》
CSCD
北大核心
2005年第2期268-272,共5页
Chinese Journal of Engineering Mathematics
基金
国家重点基础研究发展规划项目(G2000067203)国家杰出青年科学基金项目(50025412)高等学校博士科点专项科研基金项目(99053310)湖南省普通高等学校青年骨干教师培养对象项目.
关键词
粉末注射成形
流变学
流导率
数学模型
powder injection molding
rheology
flow conductance
mathematical model
