不同材质铸钢件缩孔形貌研究及数值模拟分析  

Research of Shrinkage Cavity Shapes for Different Steel Casting Based on Numerical Simulation

作　　者：陈林军[1] 李日[1] 时东娜[1] 李丹[1] 王斌[1] 张凯[1] 

机构地区：[1]河北工业大学材料科学与工程学院,天津300130

出　　处：《热加工工艺》2008年第21期30-32,36,共4页Hot Working Technology

摘　　要：利用实验和数值模拟相结合的方法对不同材质铸钢件缩孔形貌进行了研究。首先选择了具有代表性的材质(ZG35、ZG30CrMo及0Cr13Ni4Mo)及典型试样形状(T型与L型),进行铸造工艺设计;然后利用目前国内、外具有代表性的软件分别对试样进行缩孔形貌模拟,对根据模拟条件实际浇注的铸件进行探伤处理;最后根据模拟结果与实际探伤结果进行了对比分析。总结得出铸造碳钢件的缩孔比较集中,呈现球状,铸造合金钢的缩孔比较分散,多呈现长条状;铸造碳钢、铸造低合金钢、铸造高合金钢铸件缩孔体积依次逐渐增大。The shrinkage cavity shapes of different cast steel materials were researched using the methods of experiment and numerical simulation. Firstly, the representational materials （ZG35, ZG30CrMo and 0Cr13Ni4Mo）and sample shapes（T- and L-typed） were selected and the cast processes were designed. Then, the shrinkage cavity shapes of samples were simulated by the Chinese and overseas representational software. The samples were tested by defect inspection test, which were poured according to the condition of the simulation. Lastly, the simulation results and test results were analyzed. The results show that the shrinkage cavity shape of casting carbon steel is centralized and global, that of casting alloy steel was comparatively disperse and strip-shaped. The order of shrinkage cavity bulk from large to small is high alloy casting steel, low alloy casting steel, casting carbon steel.

关 键 词：铸钢件 缩孔 数值模拟 

分 类 号：TG245[金属学及工艺—铸造]