试样加工余量对Q355B热轧钢带拉伸性能的影响  

Effects of Machining Allowance on Tensile Properties of Hot Rolled Q355B Steel Strip

作　　者：亓子言 汪丽丽[1] 吴玉红[1] 蒋鹏[1] QI Ziyan;WANG Lili;WU Yuhong;JIANG Peng(Shandong Taishan Iron and Steel Group Co.,Ltd.,Jinan 271100,China)

机构地区：[1]山东泰山钢铁集团有限公司,山东济南271100

出　　处：《山东冶金》2022年第3期31-32,共2页Shandong Metallurgy

摘　　要：通过对冷剪法取样的热轧Q355B钢带进行拉伸试验和金相检验,研究加工余量对不同厚度钢带拉伸性能的影响。结果表明,屈服强度和抗拉强度与加工余量成负相关关系,断后伸长率与加工余量成正相关关系,当加工余量>7.5 mm时,加工余量对拉伸性能的影响较小。The effects of machining allowance on tensile properties of hot rolled Q355B steel strip with different thickness was studied by tensile test and metallographic test.The results show that the yield strength and tensile strength have a negative correlation with the machining allowance,and the elongation after fracture has a positive correlation with the machining allowance.When the machining allowance is greater than 7.5 mm,the machining allowance has little effect on the tensile properties.

关 键 词：冷剪法 试样 加工余量 断后伸长率 

分 类 号：TG142.1[一般工业技术—材料科学与工程]