| 引用本文: | 王小勇,苏航,潘涛,梁丰瑞,李向阳.ANSYS有限元模拟表面冷速对超厚板截面温度场的影响[J].材料科学与工艺,2013,21(3):49-54.DOI:10.11951/j.issn.1005-0299.20130308. |
| WANG Xiao-yong,SU Hang,PAN Tao,LIANG Feng-rui,LI Xiang-yang.Effect of surface cooling rate on section temperature field of ultra-heavy plate steel by ANSYS[J].Materials Science and Technology,2013,21(3):49-54.DOI:10.11951/j.issn.1005-0299.20130308. |
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| 摘要: |
| 为了研究表面冷速对超厚板心部冷却能力的影响,应用ANSYS有限元软件模拟分析了超厚板淬火水冷过程的截面温度场分布.结果表明：淬火过程中,心部与表面的截面温差随着表面冷速的增大而增大,但当冷速过大时,截面温差不再增大；随着表面冷速的增大,心部冷速在高温区和中温区表现出不同的变化规律,高温区（900～600 ℃）,心部冷速随着表面冷速的增大而显著增大,但增幅逐渐减小,当表面冷速大于80 ℃/s后,心部冷速达到极值；中温区（600～300 ℃）,心部冷速几乎不受表面冷速影响；此外,增大表面冷速对心部冷速的提升作用是有限的,厚度越大这一局限越为明显. |
| 关键词: ANSYS 有限元 表面冷速 心部冷速 超厚板 截面温度场 |
| DOI：10.11951/j.issn.1005-0299.20130308 |
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| Effect of surface cooling rate on section temperature field of ultra-heavy plate steel by ANSYS |
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WANG Xiao-yong1, SU Hang1,PAN Tao1,LIANG Feng-rui1, LI Xiang-yang2
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（1. Division of Structural Materials, Central Iron & Steel Research Institute, Beijing 100081, China; 2. China Iron & Steel Research Institute Group, Beijing 100081, China）
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| Abstract: |
| Section temperature field has been investigated by ANSYS finite element method (FEM) to study the influence of surface cooling rate on the cooling ability of center in the ultra-heavy plate steel by water quenching. The results show that, during the quenching process, section temperature variation increases with the increasing of the surface cooling rate at first, but when the cooling rate is too large, it doesn′t increase. With the surface cooling rate increasing, the center cooling rate shows different changing in different temperature zones, in higher temperature zone (900～600 ℃), the average cooling rate significantly increases with the increasing of surface cooling rate, but the growth rate gradually decreases. The cooling rate reaches the maximum value, when the surface cooling rate is greater than 80 ℃/s. However, in lower temperature zone (600～300 ℃), the average cooling rate is independent on the surface cooling rate. In addition, the increasing of the center cooling rate with the increasing of the surface cooling rate is limited, and the limitation is more obvious when the thickness is heavier. |
| Key words: ANSYS FEM surface cooling rate center cooling rate ultra-heavy plate steel section temperature field |
