全浮动芯棒连轧管机孔型对钢种适应性的模拟研究  

Numerical Simulation of Adaptability of Roll Pass of Full-floating Mandrel Pipe Mill to Steel Grade Variation

作　　者：万锋[1] 李胜祗[1] 尹元德[1] 邓世峰 汪甜甜[1] 黄曼[1] 

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243002

出　　处：《钢管》2013年第6期24-27,共4页Steel Pipe

摘　　要：应用MSC.SuperForm有限元仿真软件,基于现场生产工艺,模拟了Φ140 mm全浮动芯棒连轧管机Φ195 mm孔型的钢管连轧过程,研究了连轧过程中C22和超级13Cr两种钢的金属流动、轧制力等规律性。结果表明:与C22相比较,超级13Cr更易产生宽展,金属横向流动倾向性更大,所以在高合金管轧制用孔型设计时,需特别注意金属过充倾向;超级13Cr的轧制力较C22增大60%以上,机架、轧辊的弹性变形量更大,在轧辊辊缝预调时,应加大超级13Cr的预压靠量,在孔型设计时,也需考虑其弹性变形量,以补偿高合金钢轧制时大轧制力引起的机架、轧辊的弹性变形量的影响。Based on the site-used manufacturing processes, the finite element （FE） simulation software MSC SuperForm is used to simulate the continuous rolling process for steel pipes by the ФP140 mm full-floating mandrel mill with the Ф195 mm roll pass. Also analyzed with the method are the regularities of metal flow and rolling force, etc. of the C22 steel and the super 13Cr steel. The result reveals that compared with the C22 steel, the super 13Cr steel spreads more easily, and has a bigger tendency of transverse metal flow. So, great attention should be paid to roll pass design for high alloy pipe rolling so as to avoid groove overfilling. Likely, compared with the C22 steel, the rolling foree of the super 13Cr steel is 60% bigger than that of the C22 steel, resulting in bigger elastie deformations of the stand and the roll. Therefore in ease of rolling the super 13Cr steel, it is necessary to inerease the amount of pre-pressure when pre-adjusting roll gaps, and also to determine the elastic deformation when designing the roll pass in order to offset the influence by big elastic deformation amounts of the stand and the roll as eaused by the big rolling force in ease of rolling high alloy tubes.

关 键 词：全浮动芯棒连轧管机 孔型 钢种适应性 壁厚收缩缺陷 金属流动 轧制力 有限元模拟 

分 类 号：TG333.8[金属学及工艺—金属压力加工]