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首页> 外文期刊>Journal of thermal stresses >Fracture prediction of electromagnetic silicon steel in reheating furnace
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Fracture prediction of electromagnetic silicon steel in reheating furnace

机译：加热炉电磁硅钢的断裂预测

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This article proposes the use of strain energy density (SED) for the prediction of fracturing in silicon steel slabs undergoing reheating in a furnace. Reheating is commonly used to soften steel before hot rolling into ultra-thin silicon steel sheets referred to as electromagnetic steel. High heating rates are required to reduce the time spent in the reheating furnace to increase the efficiency of producing ultra-thin electromagnetic steel sheets and decrease fuel consumption. However, an excessive increase in heating ratesmay induce fracturing due to the comparatively brittle nature of the silicon used in electromagnetic steel slabs to enhance the electromagnetic properties. In this study, the authors used finite element numerical calculation to elucidate the fracture mechanism of electromagnetic steel slabs undergoing heating. The authors then used SED as a criterion by which to optimize the heating rates without inducing fracturing in electromagnetic steel. The proposed model could be used as a guide to shorten the time required for heating various types of steel in reheating furnaces.
机译：本文提出使用应变能密度（SED）来预测在炉中进行再加热的硅钢坯的断裂。在热轧成称为电磁钢的超薄硅钢板之前，通常使用再加热来软化钢。需要高加热速率以减少在再加热炉中花费的时间，以提高生产超薄电磁钢板的效率并减少燃料消耗。但是，由于电磁钢板中使用的硅具有较脆的性质，因此加热速率的过度增加可能会引起破裂，从而增强电磁性能。在这项研究中，作者使用有限元数值计算来阐明电磁钢板受热时的断裂机理。然后，作者使用SED作为标准，通过该标准可以优化加热速率而不会引起电磁钢断裂。所提出的模型可以作为指导，以缩短在再热炉中加热各种类型钢所需的时间。

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