多道次热轧对建筑钢板力学性能的影响  

Influence of multi-pass hot rolling on mechanical properties of building steel plates

作　　者：董慧双 李昂 DONG Huishuang;LI Ang(School of Engineering,Huanghe S&T University,Zhengzhou 450063,China)

机构地区：[1]黄河科技学院工学部,河南郑州450063

出　　处：《兵器材料科学与工程》2025年第2期87-92,共6页Ordnance Material Science and Engineering

基　　金：河南省科技攻关项目(242102320222);河南省高等学校重点科研项目(25B560019)。

摘　　要：为优化建筑钢板的力学性能,制备了3种不同C、Mn含量(Si质量分数为1%)的80 mm×60 mm×3 mm建筑钢板试样。在不同热轧温度下对3种钢板进行了多道次的热轧试验。系统研究了热轧工艺对材料硬度、室温拉伸性能及横向冲击性能的影响规律。结果表明:1^(#)钢板试样在不同热轧道次和温度下均表现出优异的综合力学性能,其硬度、抗拉强度和抗冲击性能均显著优于其他试样。当热轧温度为900℃、热轧道次为5次时,3种钢板的力学性能均达到最优状态。其中,1^(#)钢板在该工艺条件下硬化效果最佳,抗拉强度为355 MPa、横向冲击值为15.6 J,可满足建筑材料性能和质量要求。In order to optimize the mechanical properties of building steel plates,three 80 mm×60 mm×3 mm building steel plates with different C and Mn contents(Si content is 1%)were prepared.Three kinds of steel plates were subjected to multi⁃pass hot rolling tests at different hot rolling temperatures.The effects of hot rolling process on hardness,tensile properties at room temperature and transverse impact properties of the materials were systematically studied.The results show that the 1_(#) steel plate has excellent comprehensive mechanical properties under different hot rolling passes and temperatures,and its hardness,tensile strength and impact resistance are significantly better than other samples.When the hot rolling temperature is 900℃and the hot rolling passes are 5 times,the mechanical properties of the three kinds of steel plates reach the best state.Among them,the 1^(#) steel plate has the best hardening effect under this process condition,the tensile strength is 355 MPa,and the transverse impact value is 15.6 J,which can meet the performance and quality requirements of building materials.

关 键 词：多道次热轧 建筑钢板 力学性能 

分 类 号：TU391[建筑科学—结构工程]