挤压机前梁充型过程数值分析  

Numerical Analysis of Mold Filling Process for Extrusion Machine Front Beam

作　　者：史艳国[1,2] 刘振华[1,2] 张庆玲[1,2] 李敏[1,2] 

机构地区：[1]燕山大学先进锻压成型技术与科学教育重点实验室,河北秦皇岛066004 [2]燕山大学河北省并联机器人与机电系统实验室,河北秦皇岛066004

出　　处：《新型工业化》2013年第6期1-6,共6页The Journal of New Industrialization

基　　金：国家重大科技专项(2009ZX04005-031)

摘　　要：本文对挤压机前梁铸件充型过程进行分析,设计合理的阶梯式浇注系统,并采用数值模拟和水力学计算两种方法对挤压机前梁铸件充型过程进行分析。首先,根据挤压机前梁铸件的尺寸形状,设计出合理的阶梯式浇注系统。然后,利用有限元软件PROCAST对初始工艺方案的流动场进行模拟分析,并对初始工艺方案进行优化改进,同时对优化后的工艺方案进行流动场的数值模拟。最后,对初始工艺方案和优化工艺方案建立水力学模型,并对两种工艺方案下的钢液流动状态进行分析。通过分析验证,优化工艺方案下铸件充型过程平稳,不易产生缺陷。In this paper, the extrusion machine front beam casting filling process was analyzed, a reasonable step gating system was designed, and using numerical simulation and hydraulics calculation of two kinds of methods analyzed extruder front beam casting filling process. First of all, according to the shape of the size of the beam casting, designed a reasonable step gating system. Then, using the finite element software PROCAST to simulate the flow field analysis of the initial process, and optimized the initial process improvement, At the same time, simulated the flow field of optimized process solutions. Finally, hydraulics models of the initial process and the optimization process were built, and analyzed the two kinds of process of liquid steel flow state. Analysis showed that the optimal casting filling process was smooth, not easily produced defects.

关 键 词：铸造工艺与设备 挤压机 充型 阶梯式浇注系统 

分 类 号：TG3[金属学及工艺—金属压力加工] U46[机械工程—车辆工程]