摘要
研制了一种适用于高冲击条件下抗磨堆焊焊条 ,通过反复调整焊条药皮组成 ,找到了可应用于锤式破碎机锤头堆焊的合金系。通过堆焊层的金相显微分析及 X—射线物相分析表明 :堆焊层组织为马氏体加碳化物加残余奥氏体 ,堆焊层的硬度为 HRC62— 64;高应力磨料磨损实验和工业试验证明 :锤头堆焊合金的耐磨性能优良 ,是 45钢的 8.1倍 ,比未堆焊的锤头寿命提高了 8倍。
A wear resistant electrode used in high stress state is studied.By adjusting electrode's component,we find a alloy system which is suitable to shredders with hammer.Microstructure and X ray analyses indicate that the hardfacing microstructure consist of martensite,retained austenite and carbonide. The hardfacing hardness is between HRC62～64.Wearing resistance test and industrial practice had proved that wear resistant of the hardfacing is 8.2 times as high as 45 steel's and its average service life can be prolonged by eight times longer than that of conventional way.
出处
《新技术新工艺》
北大核心
2001年第1期24-25,共2页
New Technology & New Process
