粉末注射成形中喂料充模过程的一维流动分析
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摘要
通过对宾汉体和假塑性体的流变行为与实际喂料流变行为的比较,建立了能较好地与实际喂料符合的流变模型。对喂料的一维流动作了分析,建立了求解模内温度场、压力场、速度场及剪切速率的控制方程,并给出了其求解过程。
A suitable rheology model for real feedstock was created through the comparison of therheological behaviors of Bingham and pseudoplastic fluids and feedstock. The one-dimension-al flow of feedstock was analysed to establish the governing equations which would be solvedto obtain the temperature,pressure, flow rate and shear rate profiles of feedstock in moldcavity and the solution procedure was also represented in this paper.
A suitable rheology model for real feedstock was created through the comparison of therheological behaviors of Bingham and pseudoplastic fluids and feedstock. The one-dimension-al flow of feedstock was analysed to establish the governing equations which would be solvedto obtain the temperature,pressure, flow rate and shear rate profiles of feedstock in moldcavity and the solution procedure was also represented in this paper.
引文
1 Randall M German. Powder injection molding, Metal Powder Industries Federation. Princeton: New Jersey, 1991． 1～19, 147～172
2 李益民,黄伯云,曲选辉等.金属注射成形技术进展.稀有金属材料与工程,1996,25(3) :1
3 Wang C M. Leonard R. L. etal. A finite-difference computing model for 3-D simulation of the powder injection molding process. Powder injection molding symposium-1992, Metal Powder Industries Federation. American Powder Metallurgy Institute, 1992． 435
4 John R. Gaspervich,Practical application of flow analysis in metal injection molding. The international Journal of Powder Metallurgy, 1991． 27(2) : 133
5 梁叔全,黄伯云等.粉末注射成形中的流变学原理及其应用分析.稀有金属材料与工程.1996,25(3) :5
6 王启宏等.材料流变学.北京:中国建筑工业出版社,1985． 16,118
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8 吴映辉,王鹏驹.注射成形充模流动模拟的边界元方法.中国塑料,1996,10(5) :78
9 Liaquat Ali Najmi, Daeyong lee,Simulation of mold filling for powder injection molding process. Advances in Powder Metallurgy. Metal Powder Industries Federation. American Powder Metallurgy Institute, 1990, 3: 299
10 汪宏俊.流体力学(上册).北京:高等教育出版社.1988． 51,253
11 王利霞,刘春太多,注塑模充填过程动态模拟.中国塑料,1996,10(5) :71
12 袁中双筹.注塑模流动模拟研究综述.中国塑料,1993,7(1) :4
2 李益民,黄伯云,曲选辉等.金属注射成形技术进展.稀有金属材料与工程,1996,25(3) :1
3 Wang C M. Leonard R. L. etal. A finite-difference computing model for 3-D simulation of the powder injection molding process. Powder injection molding symposium-1992, Metal Powder Industries Federation. American Powder Metallurgy Institute, 1992． 435
4 John R. Gaspervich,Practical application of flow analysis in metal injection molding. The international Journal of Powder Metallurgy, 1991． 27(2) : 133
5 梁叔全,黄伯云等.粉末注射成形中的流变学原理及其应用分析.稀有金属材料与工程.1996,25(3) :5
6 王启宏等.材料流变学.北京:中国建筑工业出版社,1985． 16,118
7 毛昌辉.粉末注射成形工艺原理的研究进展.1994年全国粉末冶金学术会议论文集.北京:地震出版社.1994． 154
8 吴映辉,王鹏驹.注射成形充模流动模拟的边界元方法.中国塑料,1996,10(5) :78
9 Liaquat Ali Najmi, Daeyong lee,Simulation of mold filling for powder injection molding process. Advances in Powder Metallurgy. Metal Powder Industries Federation. American Powder Metallurgy Institute, 1990, 3: 299
10 汪宏俊.流体力学(上册).北京:高等教育出版社.1988． 51,253
11 王利霞,刘春太多,注塑模充填过程动态模拟.中国塑料,1996,10(5) :71
12 袁中双筹.注塑模流动模拟研究综述.中国塑料,1993,7(1) :4
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