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选取辊式淬火机为研究对象,建立了高压喷水区钢板冷却过程的传热模型,模拟了钢板在淬火冷却过程中的温度分布。基于传热过程数学模型,并考虑淬火工艺要求和设备条件的限制,设计了两种控冷方案并对高压喷水区水流量和辊道速度进行了优化。结果显示,两种优化的设定方案均可满足工艺要求,随钢板厚度的增加,辊道速度均呈指数形式下降,总水消耗量均呈指数形式增加,且方案二更为节水。
Taking the roller quenching machine as the research object, the heat transfer model of the steel plate cooling process in the high-pressure water jetting area is established and the temperature distribution of the steel plate in the quenching process is simulated. Based on the mathematic model of heat transfer process and considering the restriction of quenching process and equipment conditions, two control cooling schemes were designed and the flow rate and roller speed of high pressure water jet were optimized. The results show that the two optimized schemes can meet the technical requirements. With the increase of the thickness of the steel plate, the roller speed decreases exponentially and the total water consumption increases exponentially, and the second scheme is more water-saving.