连铸辊用硬面埋弧药芯焊丝研制及性能分析  

Preparation and Performance Analysis of Hard-faced Submerged Flux-cored Wire for Continuous Casting Rolls

作　　者：杨跃 张国锋 李旺 李梓箫 朱显东 田丽纷 Yang Yue;Zhang Guofeng;Li Wang;Li Zixiao;Zhu Xiandong;Tian Lifen(Luoyang Golden Egret Geotools Co.,Ltd.,Luoyang 471000,Henan)

机构地区：[1]洛阳金鹭硬质合金工具有限公司,河南洛阳471000

出　　处：《福建冶金》2025年第3期33-36,共4页Fujian Metallurgy

基　　金：河南省重点研发专项项目(231111230800)。

摘　　要：本文以Cr13系药芯焊丝为基础,采用氮代替部分碳,并综合其他合金元素的优点添加一定量的Nb、V等元素,通过对堆焊层进行组织、物相、ICP、硬度、高温抗氧化性等试验分析,结果表明:以N元素代替C元素,很好地保证了马氏体不锈钢涂层的淬透性,随着N含量的提高,涂层硬度明显提升;但当N元素超过马氏体的固溶度会导致焊接过程出现气孔;Nb、V元素的添加,使堆焊涂层中碳氮化物含量提高,使涂层的硬度提高,且Nb元素的添加使涂层的抗氧化性能明显提升;其中4#样品拥有最佳的力学性能和高温抗氧化性能,且优于市面产品414N,是一款性能优良的连铸辊用硬面埋弧药芯焊丝。In this paper,based on Cr13 flux-cored wire,nitrogen is used to replace part of carbon,and a certain amount of Nb,V and other elements are added based on the advantages of other alloying elements.Through the experimental analysis of the surfacing layer,structure,phase,ICP,hardness and high temperature oxidation resistance,the results show that:The substitution of N element for C element ensures the hardenability of martensitic stainless-steel coating.With the increase of N content,the hardness of the coating is significantly increased.However,when N element exceeds the solid solubility of martensite,pores will appear in the welding process.The addition of Nb and V elements can increase the content of carbon nitride in the surfacing coating,improve the hardness of the coating,and the addition of Nb element can significantly improve the oxidation resistance of the coating.Among them,the No.4 sample has the best mechanical properties and high temperature oxidation resistance,and is better than the market product 414N,which is a good performance of hard surface submerged arc flux-cored wire for continuous casting rolls.

关 键 词：硬面药芯焊丝 碳氮化物 高温耐磨 高温抗氧化 

分 类 号：TG422.1[金属学及工艺—焊接]