冷轧超深冲搪瓷用钢DC06EK产品开发  

Development of cold-rolled and extra-deep drawing steel DC06EK for enamelling

作　　者：王乐 陈晓潇 张冲冲 WANG Le;CHEN Xiao-xiao;ZHANG Chong-chong(Iron and Steel Research Institute,Shandong Iron and Steel Group Rizhao Co.,Ltd.,Rizhao 276826,Shandong,China)

机构地区：[1]山东钢铁集团日照有限公司钢铁研究院,山东日照276826

出　　处：《中国冶金》2020年第7期73-77,共5页China Metallurgy

摘　　要：为提升产品的档次和效益,通过科学的、经济的成分设计以及合理的冶炼、热轧、酸轧、连续退火全流程工艺控制,成功开发出了屈服强度小于140 MPa、平均塑性应变比大于2.30、抗鳞爆敏感系数TH大于6.7 min/mm^2的冷轧超深冲搪瓷用钢DC06EK产品。微观组织分析表明,DC06EK中含有均匀、等轴的铁素体组织,以及大量细小的、弥散分布的TiS、TiN等第二相析出粒子,由此保证了钢板兼有优良的成形性能和抗鳞爆性能。工业试用的结果进一步证实了该产品具有大批量推广入市的广阔前景。In order to raise the grade and benefit of products,the cold-rolled and extra-deep drawing enamel steel DC06 EK was successfully developed by means of the scientific and economic composition design and reasonable process control of steelmaking,hot rolling,acid pickling,cold rolling and continuous annealing.And the yield strength of DC06 EK was less than 140 MPa,the average plastic strain ratio was greater than 2.30 and the sensitivity coefficient to fish-scale resistance TH was greater than 6.7 min/mm^2.The microstructure analysis showed that the steel contained homogeneous and equiaxed ferrite grains,as well as a large number of fine and precipitated second phase particles(TiS,TiN,etc.),both of which ensured that the steel had excellent formability and fish-scale resistance.The result of the industrial trial further proved that the DC06 EK product had a broad prospect of mass promotion and application.

关 键 词：DC06EK 搪瓷用钢 抗鳞爆性 连续退火 氢渗透 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料]