压下率对不锈钢复合板制备的影响规律  

Influence of reduction rate on manufacture of stainless steel clad plates

作　　者：金贺荣[1] 周永强[2] 王志勇[2] 宜亚丽[2] 

机构地区：[1]燕山大学先进锻压成形技术与科学教育部重点实验室,河北省并联机器人与机电系统实验室,秦皇岛066004 [2]燕山大学机械工程学院,秦皇岛066004

出　　处：《塑性工程学报》2016年第3期97-102,共6页Journal of Plasticity Engineering

基　　金：河北省自然科学基金-钢铁联合研究基金(E2014203118)

摘　　要：复合界面结合状态直接影响复合板整体质量,界面结合性为复合板质量评价的主要性能指标。为制定保证复合板界面实现良好结合的合理压下率,采用有限元软件ANSYS对压下率10%、30%、50%下的Q345R低合金钢/316L不锈钢复合板真空热轧复合成形过程进行了模拟,并对不同压下率下复合板厚度方向上的应力场、应变场的分布规律进行了分析,实现不同压下率下复合板界面结合性判定,制定合理压下规程,并进行试验验证。结果表明,当压下率<10%时,复合板界面结合处变形不稳定,无法实现良好的结合;随着压下率增大,复合板界面结合状态渐好;当压下率>50%时,复合板界面结合处应力比较均匀,变形稳定,应变分布均匀,变形协调性较好,能够实现良好的界面结合。Interface combination is the most important performance indicator, and directly affects the overall quality of the clad plates. To obtain the reasonable reduction rates to achieve good interface bonding, the vacuum hot rolling process of Q345R low alloy steel/316L stainless steel clad plates was simulated by ANSYS finite element software. The reduction rate influence on the distributions of stress field and strain field in the composite plate thickness direction during the rolling process was analyzed, and the interface combination under different reduction rates was judged. The results showed that, with small reduction rates, the deformation became instable in the interface of clad steel which cannot achieve good interface bonding. With the increase of the reduction rates from 10%to 50 %, the interface combination of the clad plates became better and better. When the reduction rate was about 50%, the clad plates achieve good interface bonding with the uniform stress distribution, similar strain distribution and coordinating deformation.

关 键 词：不锈钢复合板 真空热轧 压下率 界面结合性 

分 类 号：TG335[金属学及工艺—金属压力加工]