控制热轧低碳钢氧化铁皮微观结构的工艺研究与应用.pdfVIP

控制热轧低碳钢氧化铁皮微观结构的工艺研究与应用 1 2 1 2 刘红艳 管连生 孙洪利 刘冰生 (1.河北钢铁集团邯钢公司 技术中心，邯郸 056015 ； 2.河北钢铁集团邯钢公司 连轧厂，邯郸 056015) 摘 要 氧化铁皮的微观结构直接影响到后序酸洗的难易程度及酸的消耗量，同时也关系到酸洗后的表面质量。本 文通过现场工艺制度和实验室大量热模拟结果，分析出邯钢 2250 热连轧带钢氧化铁皮形成的机制和规律，得出不 同终轧温度和卷曲温度对热轧带钢氧化铁皮的影响，以及在热轧各阶段氧化铁皮存在的形式、状态以及演变规律， 通过改进实际生产工艺的方法控制生成氧化铁皮的微观结构，达到易酸洗的目的，提高酸洗表面质量、并降低了能 耗。 关键词 氧化铁皮 微观结构 酸洗 The Control Technical Study and Application of Hot Rolling Low-carbon Steel to Oxidize the Iron-covered Microscopic Structure Liu Hongyan1 Guan Liansheng2 Sun Hongli1 Liu Bingsheng2 (1.Hebei Steel and Iron Group Handan Iron and Steel Group Co., Ltd. Corporation Technique centre, Handan, 056015; 2.Hebei steel and iron group Handan Iron and Steel Group Co., Ltd. Corporation CSP, Handan, 056015) Abstract The microscopic structure of Oxidizes iron-covered immediate influence to the order acid pickling difficulty degree and the acid consumption, simultaneously relates the surface quality.This article through the scene craft system and massive thermal simulation result in laboratory, analyzes 2250 hot rolling hoops to oxidize the mechanism and the rule of the iron forms, obtains the influence of the different finishing temperature and the curl temperature oxidizes iron-covered to the hot strip, as well as the form of oxidizes the iron-covered existence in the hot rolling various stages, the condition with the evolution rule, oxidizes iron-covered through the improvement actual technique of productions method control production the microscopic structure, achieves the target of easy acid pickling, improved the acid pickling surface quality, and reduced the energy consumption.