提高Cr15类初次成分高铬铸铁堆焊层性能的研究  

The Research to Improve Properties of Welding Layer on Cr15 High Chromium Cast Iron

作　　者：廖禄泰 王海艳 宁嘉沛 廖永添 丘文丰 LIAO Lu-tai;WANG Hai-yan;NING Jia-pei;LIAO Yong-tian(Guangzhou Xinzuan New Material Technology Corporation, Guangzhou 510540,China;Guangdong Institute of Materials and Processing, Guangzhou 510651,China;Guangzhou Baiyun Xinzuan Wear Material Corporation, Guangzhou 510540,China)

机构地区：[1]广州鑫钻新材料科技开发有限公司,广东广州510540 [2]广东省材料与加工研究所,广东广州510651 [3]广州市白云区鑫钻耐磨材料厂,广东广州510540

出　　处：《机电工程技术》2019年第8期41-44,共4页Mechanical & Electrical Engineering Technology

基　　金：广东省科学院实施创新驱动发展能力建设专项项目(编号:2018GDASCX-0117);广州市科技计划项目产学研协同创新联盟专项项目(编号:201604046009)

摘　　要：通过优化堆焊电焊条药皮组成物配比,提高Cr15类初次成分高铬铸铁堆焊层综合性能。单独添加钒铁合金效果不明显,但在与钼铁合金相配合加入时,可以获得最佳的堆焊层综合性能。焊条药皮组成物主要为石墨粉4.0%~4.5%、高碳铬铁粉52.0%~54.0%、钼铁合金14%、钒铁合金26%,就能实现焊层硬度较高,耐磨性优良的最佳组合配比。其堆焊层的综合性能最佳:硬度较高、耐磨性最佳、抗剥离性适中,优于对比试验组中某国外150高铬焊条以及笔者所在公司的DJ968高硼焊条。To improve comprehensive properties of welding layer on Cr15 high chromium cast iron, the composition ratio of surfacing electrodecoating is optimized. The effect is not obvious when separately adding ferrovanadium alloy. But the best comprehensive properties of welding layer canbe obtained when it is combined with ferrovanadium and ferromolybdenum alloy. The welding layer has higher hardness, best wear resistance andmoderate peel resistance, which is better than that of a foreign 150 high chromium electrode in the comparison test group and DJ968 high boronelectrode of our own company.

关 键 词：Cr15类初次成分高铬铸铁 堆焊层 硬度 抗剥离性 耐磨性 

分 类 号：TG42[金属学及工艺—焊接]