铜叶轮真空低压铸造过程的模拟实验研究  

Simulation Experimental Investigation of Vacuum Low-pressure Casting Process of Copper Impeller

作　　者：张勇[1] 牛向明[1] 

机构地区：[1]山东理工大学机械工程学院,山东淄博255049

出　　处：《铸造技术》2012年第4期433-435,共3页Foundry Technology

基　　金：山东省自然科学基金资助项目(ZR2009FL017)

摘　　要：基于相似原理对铜叶轮真空低压铸造过程进行了模拟实验研究。实验结果表明:铜液上升的液面一直保持水平状态并沿着铅垂方向推进;当加压气压为0.02 MPa,真空度为-0.02 MPa时为最佳的工艺参数。将模拟实验结果和原型的结果进行了比较,两者具有良好的一致性。Based on the similarity theory,simulation experiments were done to study on vacuum low-pressure casting process of copper impeller.The experimental results indicated that the ascending liquid surface of copper liquid keeps horizontal and advances along the vertical direction.When the applied pressure is 0.02 MPa and the degree of vacuum is-0.02 MPa,the optimal technical parameters are obtained.The simulated results had good consistency compared with that in practice.

关 键 词：铜叶轮 真空低压铸造 模拟实验 

分 类 号：TG249.2[金属学及工艺—铸造]