消除大尺寸石墨型铸造钛合金铸件中线性缺陷的工艺方法探究  

Exploration of Process Method to Eliminate Linear Defects in Large-Size Graphite Mold Cast Titanium Alloy Castings

作　　者：丁雪 张洋 吴东辉 张凯 白雪松 DING Xue;ZHANG Yang;WU Dong-hui;ZHANG Kai;BAI Xue-song(Aerospace HIWING(Harbin)Titanium Industry Co.,Ltd.,Harbin 150000,Heilongjiang,China)

机构地区：[1]航天海鹰(哈尔滨)钛业有限公司,黑龙江哈尔滨150000

出　　处：《铸造》2024年第10期1435-1439,共5页Foundry

摘　　要：本研究旨在解决大尺寸石墨型铸造钛合金铸件中常见的线性缺陷问题。结合工艺优化和数值模拟,探索了一种消除线性缺陷的有效工艺,即通过改变金属液流通路径,避免由于金属液紊流引起的冷隔等缺陷,最终达到消除线性缺陷的目的。本研究结果对于相关领域的应用具有实际意义和指导价值,为提高铸件质量、降低废品率和延长使用寿命、推动大尺寸石墨型铸造钛合金技术的发展提供了重要参考。This study aims to address the common linear defects in large-sized graphite cast titanium alloy castings.Combining process optimization and numerical simulation,an effective process for eliminating linear defects was explored,which involved changing the flow path of the metal liquid to avoid defects such as cold shuts caused by turbulent flow of the metal liquid,ultimately achieving the goal of eliminating linear defects.The results of this study had practical significance and guiding value for the application in related fields,providing important reference for improving casting quality,reducing scrap rate,extending service life,and promoting the development of large-sized graphite cast titanium alloy technology.

关 键 词：大尺寸石墨型铸造 钛合金 线性缺陷 数值模拟 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG241[金属学及工艺—金属材料]