高强耐磨钢板切割工艺研究  

Study of High-strength Wear Resistant Steel Plate Cutting Technology

作　　者：吴涛[1] 孔祥丽[1] 王新[1] 李建立[1] 

机构地区：[1]舞阳钢铁有限责任公司科技部,河南舞钢462500

出　　处：《新技术新工艺》2011年第6期85-86,共2页New Technology & New Process

摘　　要：高强耐磨钢一般硬度越高,耐磨性越好。耐磨钢通过合理的合金成分匹配,同时借助淬火及低温回火获得强度高、耐磨好的力学性能,但随着钢板硬度和厚度的升高,氧气燃料火焰切割时容易出现延迟裂纹,此裂纹为氢致裂纹。通过预热至一定温度后慢速切割,可以很好地解决切割裂纹问题。Generally,the higher the hardness of high strength wear-resistant steel,the better of the anti-wear.Wear-resistant steel is by optimizing the alloy composition,while using quenching and tempering to obtain high strength,wear and mechanical properties,but with the hardness and thickness of the plate increasing,the oxygen fuel flame cutting are more likely to delay the crack,the crack for the hydrogen induced cracking.It can solve the problem of cutting crack through preheating to a certain temperature by slow cutting.

关 键 词：耐磨钢 火焰切割 延迟裂纹 预热温度 切割速度 

分 类 号：TG487[金属学及工艺—焊接]