波纹轨腰钢轨的变形特点分析  

Analysis on Deformation Characteristics of Corrugated Waist Rail

作　　者：马劲红[1] 陈伟[1] 刘晓潘[1] 任喜强 邹一飞 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009 [2]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《铸造技术》2014年第6期1286-1288,共3页Foundry Technology

摘　　要：基于有限元软件ANSYS/LS-DYNY,模拟了波纹轨腰钢轨的轧制过程。分析轧制波纹轨腰钢轨时,咬入条件、变形区、伸长系数、前后滑区等与轧制普通钢轨的不同。通过其轧制变形特点的分析,找出轧制波纹轨腰钢轨轧制力大的原因。结果表明,轧制波纹轨腰钢轨时,只要轧件与齿型辊接触,就能保证咬入;轧制形变区的存在对金属起到了预变形的作用,同时也是轧制力较大的原因;为了保证波纹轨腰轨头和轨底的均匀伸长,应使轨腰的总体伸长系数与轨头和轨底的伸长系数一致。The rolling process of corrugated waist rail was simulated based on the software of ANSYS/LS-DYNY. The difference of bite condition, deformation zone, elongation modulus, slippage zone of front and back between corrugated waist rail roiling and common rail rolling were analyzed. The reason of the force of corrugated waist rail rolling greater was found out through the analysis of rolling deformation characteristics. The results show that, when rolling the corrugated waist rail, as long as the rolled pieces and toothed roller contact, which can assure bite. The existence of rolling deformation area has the effect of predeformation on metals, and which is the cause of the rolling force is larger. In order to keep the head and bottom of corrugated waist rail uniform elongation, the elongation coefficient of waist overall should consist with the elongation coefficient of head and bottom.

关 键 词：波纹轨腰钢轨 咬入条件 变形区 伸长系数 前后滑区 

分 类 号：TG335.43[金属学及工艺—金属压力加工]