摘要
对冷轧Q235钢带进行了模拟退火试验和工业试制,结果表明:钢带退火再结晶温度约为600℃,随退火温度升高,钢带强度降低、伸长率升高;在较低温度下退火时,保温时间对钢带性能影响不明显,而在较高温度下长时间保温则会恶化钢带的综合性能。将根据试验结果制定的退火工艺应用于全氢罩式退火炉,试制的钢带性能与试验结果吻合较好,完全满足产品设计要求。
Simulated annealing experiment and industrial manufacture were carried out on cold-rolled Q235 steel sheet.The results indicate that the recrystallization temperature is about 600℃;with the increase of the annealing temperature,the strength of the steel sheet is reduced,and the elongation is increased.When annealed at lower temperature,the effect of heat preservation time on the properties of the steel sheet is not obvious,and the comprehensive performance of the steel sheet would be deteriorated at the higher temperature holding for a long time.Based on the simulated experiment results,annealing process is applied to the full-hydrogen bell-type annealing furnace,and the mechanical properties of the steel sheet are well matched with the experiment result,which fully meets the product design requirement.
作者
张星
王淑华
侯明山
Zhang Xing;Wang Shuhua;Hou Mingshan(HBIS Group Tangsteel Company,Tangshan Hebei 063016,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2019年第11期118-122,共5页
Heat Treatment of Metals
关键词
Q235钢
退火
显微组织
力学性能
Q235 steel
annealing process
microstructure
mechanical properties