钛合金铸锭冒口损失率差异性成因分析及对策研究  

Cause Analysis and Countermeasure Research on the Difference of Riser Loss Rate of Titanium Alloy Ingot

作　　者：郑亚波[1] 毛玲玲[1] 刘钊 陈峰[1] 陈战乾[2] ZHENG Ya-bo;MAO Ling-ing;LIU Zhao;CHEN Feng;CHEN Zhan-qian(Baoji Titanium Industry Co.,Ltd.,Baoji 721014,Shaanxi,China;Baotai Group Co.,Ltd.,Baoji 721014,Shaanxi,China)

机构地区：[1]宝鸡钛业股份有限公司,陕西宝鸡721014 [2]宝钛集团有限公司,陕西宝鸡721014

出　　处：《铸造》2024年第7期962-967,共6页Foundry

摘　　要：VAR熔炼的钛合金铸锭,熔炼末期需要采用补缩工艺制度,降低铸锭冒口损失率,提高成材率。在实际生产过程中,钛合金铸锭冒口损失率受各种因素影响,每个铸锭之间存在较大差异,且波动范围大,损失严重。为了分析钛合金铸锭冒口损失率差异性的影响因素,应用Minitab统计软件,采用多因子方差分析方法进行研究,找出了熔炼工班次、补缩时间班次、探伤操作者、补缩期操作稳定性、补缩过程是否频繁短路等显著影响因子,排除了不显著的因子交互作用,并针对各显著因子,制定了相应的改进对策,有效降低了钛合金铸锭冒口损失率以及铸锭间的差异性,提高了成品率。During VAR smelting of titanium alloy ingots,feeding process system shall be adopted at the end of smelting,so as to reduce the loss rate of ingot riser and improve the yield.In the actual production process,the loss rate of titanium alloy ingot riser is affected by various factors.There is a large difference between each ingot,and the fluctuation range is large,resulting in serious losses.In order to analyze the influencing factors of the difference in the riser loss rate of titanium alloy ingots,the Minitab statistical software was used to conduct the research by the method of multi factor variance analysis.The significant influencing factors,such as the shift of smelting workers,the shift of feeding time,the flaw detection operator,operation stability during feeding period,and whether the feeding process was frequently shorted out,were found out,and the insignificant factor interaction was eliminated.According to the significant factors,the corresponding improvement measures were formulated,which effectively reduced the riser loss rate of titanium alloy ingots and the difference between ingots,and increased the product yield.

关 键 词：钛合金 铸锭 冒口损失率 Minitab 方差分析 

分 类 号：TG146.2[一般工业技术—材料科学与工程]