| TiAl基合金排气阀离心铸造充型过程数值模拟的试验验证 |
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| 引用本文： | 吴士平,郭景杰,苏彦庆,贾均. TiAl基合金排气阀离心铸造充型过程数值模拟的试验验证[J]. 铸造, 2001, 50(9): 561-563 |
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| 作者姓名： | 吴士平 郭景杰 苏彦庆 贾均 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,黑龙江,哈尔滨市,150001 |
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| 摘 要： | TiAl基合金排气阀离心铸造充型过程较其它铸造过程的充型有很大的不同，它是在重力场、离心力场及科里奥利力场共同作用下完成的充型过程。本文通过对离心铸造充型过程的液体进行受力分析，依据描述流体流动行为的N-S方程及连铸性方程，建立了TiAl基合金排气阀离心铸造充型过程数值模拟模型，为研究TiAl基合金排气阀离心铸造充型过程及缺陷形成规律提供了新的研究方法，模拟结果和试验结果相吻合。
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| 关 键 词： | TiAl基合金 离心铸造 充型 数值模拟 排气阀 汽车 |
| 文章编号： | 1001-4977(2001)09-0560-04 |
| 修稿时间： | 2001-02-10 |
Verification of a Numerical Simulation of the Mold Filling Processes on Centrifugal Casting of Exhausting Valves of TiAl Based Alloys |
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| WUShi ping,GUOJing jie,SUYan qing,JIAJun. Verification of a Numerical Simulation of the Mold Filling Processes on Centrifugal Casting of Exhausting Valves of TiAl Based Alloys[J]. China Foundry, 2001, 50(9): 561-563 |
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| Authors: | WUShi ping GUOJing jie SUYan qing JIAJun |
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| Abstract: | The mold filling process on centrifugalcastingsofexhaustingvalvesofTi Albasedalloysdiffergreatlyfromothersbecauseitiscarriedoutunderinteractionbetweengravitationalfield ,centrifugalforcefieldandCoriolisforcefield .Basedontheanalysisoftheforcetotheliquidmetalinthecentrifugalcastingprocess ,usingtheN Sfunctionofliquidflowandthefunctionofcontinuity ,thispaperestablishesanumer icalsimulationmodelofthemoldfillingprocessoncentrifugalcastingofexhaustingvalvesofTi Albasedalloys ,andgivesanewwayforstudyingthisprocessandtheformationrules of the faults .Itshows that simulation results are consistent with experiments . |
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| Keywords: | Ti Al based alloys centrifugal casting mold filling numerical simulation |
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