针对某钢铁公司φ76机组穿孔过程进行了工业性试验.在设定的轧制条件和冷却条件下,对轧件内部组织的晶粒大小做了测定.应用有限元方法计算了穿孔中应力、应变和温度等参数的分布状态,利用再结晶数学模型对该过程内部晶粒进行了预测.通过室温条件下的理论与实测比较,认为该热-力耦合有限元模型与内部组织数学模型之结合模型,对预测轧件内部组织具有一定的可靠性.进而可对斜轧工艺参数进行调整,使管轧过程中穿孔毛管具有良好的内部质量.为后续工序提供高质量的坯料,减少不必要的轧制道次.
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