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| 400mm厚连铸坯轧制时缺陷的压合模拟 | |
| 引用本文： | 张林,赵德文,邓伟,王根矶,白学军.400mm厚连铸坯轧制时缺陷的压合模拟[J].钢铁,2011,46(11):61-65,76. |
| 作者姓名： | 张林 赵德文 邓伟 王根矶 白学军 |
| 作者单位： | 1. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819 2. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819／秦皇岛首秦金属材料有限公司,河北秦皇岛066326 3. 秦皇岛首秦金属材料有限公司,河北秦皇岛,066326 |
| 基金项目： | 国家自然科学基金资助项目(51074052) |
| 摘 要： | 对某宽厚板厂最新投产的400mm连铸坯,以刚-粘塑性有限元模拟分析了其轧制Q345特厚钢板时的缺陷压合过程和临界压合条件。结果表明：在足够的压下率下,特厚板中心矩形裂纹能够被压合;缺陷尺寸、轧辊半径和坯料厚度对缺陷压合影响很大。缺陷尺寸和轧辊半径越大、坯料厚度越小,压合所需的临界压下率越小;在1120mm×4300m... |
| 关 键 词： | 特厚板 400mm连铸坯 有限元法 缺陷压合 |
Simulation of Central Defects Closing During 400mm Thickness Continuous Casting Slab Rolling |
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| ZHANG Lin,ZHAO De-wen,DENG Wei,WANG Gen-ji,BAI Xue-jun.Simulation of Central Defects Closing During 400mm Thickness Continuous Casting Slab Rolling[J].Iron & Steel,2011,46(11):61-65,76. | |
| Authors: | ZHANG Lin ZHAO De-wen DENG Wei WANG Gen-ji BAI Xue-jun |
| Affiliation: | ZHANG Lin1,ZHAO De-wen1,DENG Wei1,WANG Gen-ji1,2,BAI Xue-jun2(1.State Key Lab of Rolling and Automation,Northeastern University,Shenyang 110819,Liaoning,China,2.Qinhuangdao Shouqin Metal Materials Co.,Qinhuangdao 066326,Hebei,China) |
| Abstract: | The behavior and critical condition of defects closing during Q345 ultra-heavy plate rolling with 400 mm thickness continuous casting slab were investigated with FEM,ANSYS/LS-DYNA.The results show that the central rectangle defects in ultra-heavy plate will be closed by enough pass reduction ratio.The defects size,roll radius and slab thickness have obvious influence on critical reduction ratio.The critical reduction ratio is inversely proportional to defect size and roll radius but is proportional to slab ... |
| Keywords: | ultra-heavy plate 400 mm thickness continuous casting slab finite element method(FEM) defects closing |
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