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    铝合金单道次热轧过程的温度模拟

    Temperature Simulation of Single Pass Hot Rolling Process of Aluminum Alloy

    • 摘要: 为精确预测轧件的温度场、优化轧制工艺和提高最终产品的质量,通过轧制试验和二维弹塑性有限元法,用MSC、Merc软件建立了3104铝合金板材单道次热轧有限元温度模型,分析了空冷、接触传热、塑性变形热和摩擦热等传热方式对轧板温度的影响以及轧板初始温度、轧制速度、接触传热系数和压下量等轧制参数的轧板温降灵敏度系数.结果表明:在单道次热轧过程中,接触传热对轧板温度的影响最大,塑性变形热的影响次之,摩擦热的影响较小,空冷的影响最小;轧板初始温度、轧制速度、接触传热系数和压下量等轧制参数的轧板温降灵敏度系数依次减小.

       

      Abstract: In order to accurately predict the temperature field of rolled pieces,optimize the hot rolling process and improve the quality of the final product,the finite element temperature model of 3104 aluminum alloy plate during single pass hot rollig process was built up using MSC,Marc softwares by rolling test and two-dimensional elastoplastic finite element method.The effects of air cooling,contact heat transfer,plastic deformation heat and friction heat on the plate temperature were investigated.And the effects of rolling parameters including the initial temperature of plate rolling speed,contact heat transfer coefficient and reduction on temperature drop sensitivity coefficient were analyzed also.The results show that contact heat transfer had the most effect on the plate temperature and it was followed by plastic deformation,friction and air cooling.The initial temperature had the most effect on the temperature drop sensitivity coefficient and it was followed by rolling speed,contact heat transfer coefficient and reduction.

       

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