铌钒复合对高安全性能矿用锚杆钢屈强比的影响  

Effect of Niobium and Vanadium Compound on Yield Ratio of High Safety Performance Mining Steel Anchor

作　　者：晁月林[1] 周玉丽[1] 程四华[1] 王立峰[1] 崔京玉[1] 

机构地区：[1]首钢技术研究院,北京100041

出　　处：《热加工工艺》2014年第6期107-110,共4页Hot Working Technology

摘　　要：通过50k真空炉冶炼不同含量铌钒复合的矿用锚杆钢，经中试轧制后，研究了铌钒含量对低碳微合金钢的组织及力学性能的影响。结果表明：铌钒复合锚杆钢比钒微合金锚杆钢的屈强比低0.3～0．4．晶粒度高0．5～1级。晶粒细化明显，易出现贝氏体，但经低温轧制＋超快冷技术即可达到500MPa级性能要求。采用0．026％铌＋0．03％V含量铌钒复合替代0．07％-0．08％V生产可获得高强度更高安全性能的低碳微合金锚杆钢。Different niobium and vanadium compound of low carbon micro-alloyed steel was smelted by 50 kg small furnace, the influence of different niobium and vanadium content on the microstructure and mechanical properties of low carbon micro-alloyed steel was studied. The results show that the yield ratio of niobium and vanadium compound is lower about 0.3-0.4 than that of Vanadium, and the batinite structure easily appears. By low temperature rolling and rapid cooling technology, this performance reaches 500 MPa. 0.07%-0.08% vanadium was replaced with 0.026% niobium＋0.03% vanadium and high safety performance mining steel anchor was acquired.

关 键 词：铌钒复合 锚杆钢 低屈强比 高安全性能 高强度 

分 类 号：TG335.11[金属学及工艺—金属压力加工]