刘慕怡, 徐利民, 曾纪成. 残余应力对冷轧工作辊抗事故性的影响[J]. 工程科学学报, 1992, 14(5): 513-517. DOI: 10.13374/j.issn1001-053x.1992.05.004
引用本文: 刘慕怡, 徐利民, 曾纪成. 残余应力对冷轧工作辊抗事故性的影响[J]. 工程科学学报, 1992, 14(5): 513-517. DOI: 10.13374/j.issn1001-053x.1992.05.004
Liu Muyi, Xu Limin, Ceng Jicheng. Influence of Residual Stresses on Thermal Shock Resistance for Cold Mill Working Rolls[J]. Chinese Journal of Engineering, 1992, 14(5): 513-517. DOI: 10.13374/j.issn1001-053x.1992.05.004
Citation: Liu Muyi, Xu Limin, Ceng Jicheng. Influence of Residual Stresses on Thermal Shock Resistance for Cold Mill Working Rolls[J]. Chinese Journal of Engineering, 1992, 14(5): 513-517. DOI: 10.13374/j.issn1001-053x.1992.05.004

残余应力对冷轧工作辊抗事故性的影响

Influence of Residual Stresses on Thermal Shock Resistance for Cold Mill Working Rolls

  • 摘要: 利用Gleeble-1500型热模拟机,研究了不同预加压应力和加热温度对温度——应力曲线的影响。结果表明:在相变点以下加热时,预加压应力越大,加热和冷却后的拉应力越小,这说明残余压应力有抵抗热冲击开裂的能力。

     

    Abstract: An investigate with thermal simulator of Gleeble-1 500 model was worked out. A series of temperature-stresses curves was obtained in which different pre-compressive stress and temperature was applied. The result show: in the temperature range below the phase transformation temperature, the higher the pre-compressive stresses, the lower the tensile stresses after heat and cold. These demonstrate that the residual compressive stresses be able to resist cracking caused by thermal shock.

     

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