埋弧自动焊高耐磨堆焊层焊剂的研制

THE DEVELOPMENT OF UNION MELT WELDING HIGH ABRASION WELD LAYER FLUX

研制了一种制作大面积埋弧自动焊高耐磨堆焊层用非熔炼焊剂。使用该焊剂配以H0 8A焊丝进行埋弧堆焊 ,可获得硬度为HRC 58～ 63的均匀堆焊层。利用金相、TEM和X射线衍射分析堆焊层的组织结构 ,结果表明 ,堆焊层组织为大量细小的马氏体加残余奥氏体及碳化物。该堆焊层的耐磨性是 45钢的

A non fused flux making large area union melt welding high abrasion weld layer was developed Using this flux combined with H08A welding stick, the union pile welding was made, which can get a even pile weld layer of HRC 58～63 The organization structure of pile welding layer was analyzed by using the metallography, TEM and X rays The result showed that the pile welding layer organization is martensite with autensite and carbide and the abradability of this layer is 8 times as much as the same kind of steel