LNG储罐用高锰钢焊接研究现状及展望  

Research Status and Prospects of High Manganese Steel Welding for LNG Storage Tank

作　　者：牛董山钰 李波 信国松 武鹏博 朱闯 冯志强 罗玖田 方乃文 NIU Dongshanyu;LI Bo;XIN Guosong;WU Pengbo;ZHU Chuang;FENG Zhiqiang;LUO Jiutian;FANG Naiwen(Juli New Material Technology(Rizhao)Co.,Ltd.,Rizhao 276826,China;Beibu Gulf University,Qinzhou 535011,China;PingDu Technician Institute,Pingdu 266700,China;Harbin Welding Institute Limited Company,Harbin 150028,China)

机构地区：[1]聚力新材料科技(日照)有限公司,山东日照276826 [2]北部湾大学,广西钦州535011 [3]平度市技师学院,山东平度266700 [4]中国机械总院集团哈尔滨焊接研究所有限公司,黑龙江哈尔滨150028

出　　处：《电焊机》2025年第3期28-39,共12页Electric Welding Machine

基　　金：国家自然科学基金(52261044);泰山产业领军人才工程(2024001)。

摘　　要：随着国际液化天然气(LNG)产业的快速发展,对储运低温材料的需求日益迫切。为了平衡材料的服役性能与制造成本,含有20%~28%Mn元素的低温高锰钢引起了广泛关注。详细探讨了LNG储罐用高锰钢材料的特性、焊接过程中热裂纹的形成机理、合金元素的烧损途径以及焊接接头在低温环境的性能下降的影响因素等问题,并提出了实际焊接应用过程中的预防措施。同时,介绍了低温高锰钢常用的焊接工艺方法的应用现状及其对性能的影响规律,并探讨了新型焊接方法在低温高锰钢应用的发展趋势,以期为LNG储罐的优质焊接应用提供参考依据。With the rapid development of the international liquefied natural gas(LNG)industry,the demand for cryogenic materials for and transportation is increasingly urgent.In order to balance the service performance and manufacturing cost of materials,high manganese steel for cryogenic temperature has attracted extensive attention.properties of high manganese steel materials for LNG storage tank,the formation mechanism of hot cracks in the welding process,the burning loss path of alloy elements,the influencing factors of the performance degradation of welded joints in the cryogenic environment were detailed discussed,and the preventive measures in the actual welding application process were proposed.the same time,the application status of common welding process methods for low temperature high manganese steel and its influence law on the performance are introduced,and the development of new welding methods in the application of low temperature high manganese steel is discussed,in order to provide a reference basis for the high-quality welding application of LNG storage tank.

关 键 词：液化天然气(LNG)储罐 低温高锰钢 焊接 

分 类 号：TG457.1[金属学及工艺—焊接]