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宝钢某酸轧机组生产高表面要求的汽车板,随着汽车产业向安全性、轻量化和外形流线型趋势的发展,高强钢及深冲钢比例明显加大,且部分用户有超高强钢的需求,另外用户对产品的质量也有更高的要求。宝钢某酸轧的实绩已经开始出现满足不了用户需求的现象,需要对酸轧机组的部分主要设备进行改造,通过前期的测算找出了影响机组质量和产能的瓶颈点,并提出主要改造内容和改造方案,经过2次集中停机进行施工,改造后完成了轧制油改善试验、变形量增加轧制规范调整、酸洗浓度速度调整等主要工艺的调整,并且一次通过表面质量、板形、产能的功能考核。同时该改造项目的顺利完成,不但实现了高品质轧硬卷自己自足的目标,而且为宝钢今后大型技改项目的混凝土切割施工、大型高精度传动设备移位、轧机传动改造技术积累了丰富经验。
With the development of the automotive industry towards safety, lightweight and streamlined shape, the proportion of high-strength steels and deep-drawn steels has obviously increased and some of the customers have the demand of ultra-high strength steels. In addition, the quality of the user’s products also have higher requirements. Some achievements of Baosteel sour rolling mill have begun to appear that can not meet the needs of users. Some of the main equipment of the smelting mill unit needs to be rebuilt. The bottleneck point affecting the quality and capacity of the generating unit has been found out through the pre-calculation, and the main reformation contents and After two rounds of shutdowns, the project was completed. After the renovation, the rolling oil improvement test, the adjustment of rolling specifications and adjustment of pickling concentration and speed were completed. The quality of the products was adjusted through surface quality, shape, capacity Functional assessment. At the same time, the successful completion of the reconstruction project not only achieved the goal of self-contained high-quality rolling hard rolls, but also accumulated rich experiences in concrete cutting and construction of large-scale technical renovation projects of Baosteel, displacement of large-scale high-precision transmission equipment, and transmission transformation of rolling mills .