基于威布尔分布的长水口使用可靠性研究  

Study on the Service Reliability of Shroud Based on Weibull Distribution

作　　者：赵海峰 谢丹丹 杜芳林[1] ZHAO Haifeng;XIE Dandan;DU Fanglin(College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Qingdao Hiworld New Materials Co.,Ltd.,Qingdao 266200,China)

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042 [2]青岛正望新材料股份有限公司,山东青岛266200

出　　处：《青岛科技大学学报（自然科学版）》2023年第1期55-60,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省重点研发计划项目(2018GGX102036)。

摘　　要：采用了连铸用长水口使用寿命数据基于威布尔分布的可靠性分析方法,并对3种不同技术方案制作的长水口产品的使用可靠性进行对比分析。结果表明,长水口的使用寿命数据服从威布尔分布,3种不同技术方案制作的长水口寿命数据的威布尔分布形状参数分别为3.65,3.99和3.42,尺度参数分别为450,539和407。与常规方差分析方法和正态分布方法相比,该方法可对长水口使用可靠性进行有效量化,并实现相应产品的可靠性预测。In this article, the reliability analysis method for the service life data of shroud for continuous casting based on Weibull distribution is introduced. The service reliability of the shroud manufactured by three different technical schemes is compared with this method. Results show that the service life data obey Weibull distribution, the shape parameters of Weibull distribution of the three shrouds′ service life are 3.65, 3.99 and 3.42, and the scale parameters are 450, 539 and 407, respectively. Compared with the common variance analysis and normal distribution methods, it can effectively quantify the service reliability of the shroud and realize the reliability prediction of corresponding products.

关 键 词：连铸用长水口 威布尔分布 可靠性分析方法 可靠性预测 

分 类 号：TB321[一般工业技术—材料科学与工程]