磨辊堆焊材料C-Cr-Si-Mn合金体系中合金成分对使用性能的影响

Influence of the elementin C-Cr-Si-Mn alloy system on use performance of roller surfacing material

为研究C-Cr-Si-Mn合金体系堆焊层的耐磨性和磨辊抗剥离能力,进行了不同合金堆焊材料的耐磨性(即磨痕深度)和抗剥离能力的试验。结果表明,(1)合金元素C、Cr含量对堆焊层的耐磨性及抗剥离能力影响大(;2)C-Cr-Si-Mn合金体系的合金元素最佳范围为:w(C)=5.0%～5.5%,w(Cr)=23.5%～29%,w(Mn)<3.0%,w(Si)<1.5%(;3)工艺对堆焊层的耐磨性及抗剥离性有影响,堆焊修复时需要选择合适的焊接工艺。

To study the abrasion resistance of C-Cr-Si-Mn alloy surfacing layer and the spalling resistance of roller, abrasion and spalling resistance of different alloy surfacing material were tested. The results show as follows,（1） element C and Cr affects the abra- sion and spalling resistance greatly, （2） the best element rate range of C-Cr-Si-Mn alloy system is w（C）=5.0% -5.5% ,w（Cr）=23.5% 29%, w（Mn） 〈 3.0%, w（Si） 〈 1.5%, （3） Proper welding technology should be chosed since it affects the surfacing layer＇s abrasion and spalling resistance.