宽厚船板表面质量控制  

Surface quality control of wide thick ship plate

作　　者：杨建炜[1] 许静[1] 曹建平[1] 章军[1] 

机构地区：[1]首钢技术研究院,北京100041

出　　处：《钢铁研究》2013年第6期59-62,共4页Research on Iron and Steel

摘　　要：为了解决船板氧化铁皮压入引起的麻坑、表面粗糙等表面质量以及存储期腐蚀的问题,采取了控制连铸坯加热制度、提高除鳞系统水压、控制水中Cl-含量,以及优化轧制、矫直工艺参数等措施。结果表明:通过上述措施,除鳞效果有了明显改善,铸坯表面基本上不存在一次氧化铁皮残留;合理控制了表面氧化铁皮结构,增强了表面氧化铁皮的高温塑性,有效解决了表面质量问题;提高了船板表面耐海岸大气腐蚀性能,延长了其在海岸大气环境中的存储时间。Mill scale dent, rough surface and corrosion pit are the main defects on the surface of ship plate. In order to eliminate these defects, the following measures were taken： optimization of heating and rolling schedule, increase of water pressure and control of Cl^- content of water in the descaling system, and optimizing technological parameter of rolling and straightening. The results indicated that the construction of oxide scales was optimized due to the improvement of descaling effect. Corrosion performance under seashore atmosphere can be increased effectively, and the storage period of ship plate under seashore environment can be also extended.

关 键 词：轧制 表面粗糙 氧化铁皮 腐蚀 

分 类 号：TG335[金属学及工艺—金属压力加工]