堆焊药芯焊丝的研制  

Flux cored wire for surfacing

作　　者：王红[1] 王双林[1] 姚奉娣 周清林 

机构地区：[1]山东省日照职业技术学院,276826 [2]苏州市天泰焊接材料有限公司,215000

出　　处：《焊接》2007年第1期55-57,共3页Welding & Joining

摘　　要：采用H08A薄钢带作为外皮,研制适用于轧辊等零件修复的药芯焊丝。向焊丝药粉中添加不同含量的Cr,Mo,V,W,B等合金元素,通过硬度试验确定堆焊层耐磨性比较理想的一种配方。采用“多元少量”的原则,加入多种强碳化物形成元素,不但能够提高淬透性,使材料在焊接条件下更快地发生马氏体转变,而且能够形成碳化物、硼化物等细小碳化物硬质相,同时还细化基体晶粒,从而得到硬度与耐磨性较好的堆焊层。试验证明,所研制的药芯焊丝能够满足实践需要。Flux cored wire for roller repairing was developed by use of H08A steel strip,which adding different content of Cr,Mo,V,W,B and other alloys into the flux,and a reasonable composition was obtained by means of making sure the resistance to wear of deposited layer through hardness experiments.According to the rule of more elements and few quantities,adding kinds of alloy elements can not only promote the martensite transformation under welding condition,but also produce a great deal of carbides and borides so that the surfaces get higher hardness and higher resistant ability to wear.Experimental results confirm that the novel flux cored wire can meet the needs of production.

关 键 词：药芯焊丝 堆焊 硬度 

分 类 号：TG422.1[金属学及工艺—焊接]