退火工艺对滤清器用IF钢组织及性能的影响  

EFFECT OF ANNEALING PROCESS ON MICROSTRUCTURE AND PROPERTIES OF IF STEEL USED IN FILTERS

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作  者:帅勇[1] 高永旭 李伟男 唐小勇[1] 杨源华 赵征志 Shuai Yong;Gao Yongxu;Li Weinan;Tang Xiaoyong;Yang Yuanhua;Zhao Zhengzhi(Xinyu Iron and Steel Group Co.,Ltd.Xinyu 338001,China;Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing 100083,China)

机构地区:[1]新余钢铁集团有限公司,新余338001 [2]北京科技大学钢铁共性技术协同创新中心,北京100083

出  处:《冶金信息导刊》2025年第2期29-33,60,共6页Metallurgical Information Review

基  金:高品质滤清器用钢带关键制造技术研究及应用(20232BCJ22037)。

摘  要:为了研究滤清器用IF钢组织及性能随退火工艺的演变规律,利用连续退火模拟试验机对工业生产的IF钢冷硬板进行了连续退火模拟试验,分别研究了退火温度和过时效工艺对试验钢组织性能的影响。结果表明:在720~780℃退火,随着退火温度的升高试验钢的再结晶程度增大,抗拉强度和屈服强度缓慢下降、伸长率呈上升趋势;当退火温度大于等于740℃时,对于深冲性能有利的{111}<110>织构显著增强;当过时效开始温度为400℃时,过时效结束温度在300~350℃变化对试验钢性能的影响不大,同时提高过时效开始及结束温度后,试验钢的屈服强度和伸长率明显提高。In order to investigate the evolution of the microstructure and properties of IF steel used in filters with annealing process,continuous annealing simulation tests were conducted on IF steel cold hard plates produced in industry using a continuous annealing simulation test machine.The effects of annealing temperature and over-aging process on the microstructure and properties of the test steel were studied separately.The results showed that the recrystallization degree of the test steel increased with the increase of annealing temperature at 720~780℃,and the tensile strength and yield strength slowly decreased,while the elongation rate showed an upward trend;When the annealing temperature is greater than or equal to 740℃,the{111}<110>texture,which is beneficial for deep drawing performance,is significantly enhanced;When the starting temperature of over aging is 400℃,the change in the ending temperature of over aging between 300~350℃has little effect on the properties of the test steel.At the same time,increasing the starting and ending temperatures of over aging significantly improves the yield strength and elongation of the test steel.

关 键 词:退火工艺 IF钢 滤清器用钢 退火温度 过时效工艺 

分 类 号:TG156.3[金属学及工艺—热处理]

 

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