摘要
在普通压铸流场模拟的基础上,通过建立冲头、压室及金属液之间的运动学与动力学控制方程,以及三者之间的边界条件与初始条件,模拟了压室内金属液在冲头推动下的二维流动形态。分析了冲头的不同运动参数对压室内金属液卷气的影响,为实际压铸中慢压射速度的选择提供了参考。
Control equations of kinetics and dynamics among the plunger,shot sleeve and liquid metal have been established to simulate the 2D flow field of liquid metal in shot sleeve based on conventional flow field simulation,in which the boundary and initial conditions among the threes are considered.The effects of different velocities of plunger on the entrapped-gas defects in liquid metal in shot sleeve have been approached,which provides a reference for the selection of slow-injection velocity in practical die casting.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2007年第6期436-438,共3页
Special Casting & Nonferrous Alloys
关键词
压室
流动形态
数值模拟
Shot Sleeve,Flow Field,Numerical Simulation
