公开(公告)号：EP3100802A1

公开(公告)日：2016-12-07

申请号：EP15743910.0

申请日：2015-02-02

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： KOSUGI, Satoshi ,  OKAZAWA, Kensuke ,  NAKAGAWA, Junichi

IPC分类号： B22D11/16

摘要： A heat transfer coefficient α between a solidified shell (2) and a mold (4) sandwiching a mold flux layer (3), and a heat transfer coefficient β between a molten steel (1) and the solidified shell (2) are found by solving an inverse problem by using data from thermocouples (6), and a solidified shell thickness and a solidified shell temperature are estimated (solidified state in mold estimation amounts), and further, solidified state in mold evaluation amounts are obtained. It is determined whether a normal casting state or an abnormal casting state by comparing at least one or more kinds of amounts contained in the solidified state in mold estimation amounts and the solidified state in mold evaluation amounts with allowable limit values which are found based on at least one or more kinds of amounts contained in the solidified state in mold estimation amounts and the solidified state in mold evaluation amounts when the abnormal casting occurred in a past and stored in a data storage part.

摘要翻译： 在凝固的壳体（2）和模具（4）之间夹着模具焊剂层（3）的传热系数±和钢水（1）和凝固壳体（2）之间的传热系数²由 通过使用来自热电偶（6）的数据解决逆问题，估计固化壳厚度和凝固壳温度（模具估计量中的固化状态），并且获得模具评估量中的固化状态。 通过将模具估计量中的固化状态中包含的至少一种以上的量和模具评价量的固化状态与允许的极限值进行比较来确定正常铸造状态或异常铸造状态，所述容许限制值基于在 在模具估计量中的固化状态中包含的至少一种或多种量，以及当过去发生异常铸造并存储在数据存储部中时，模具评估中的固化状态量。