耐候钢Q235NH的研制与工艺优化  

Research and Process Optimization of Weathering Steel Q235NH

作　　者：王智轶[1] 王彩虹[1] 

机构地区：[1]天津钢铁有限公司

出　　处：《宽厚板》2014年第2期5-8,共4页Wide and Heavy Plate

摘　　要：介绍了耐候结构钢Q235NH的生产工艺和试制过程,对实际生产过程中的关键工序及钢板质量进行了分析,发现其化学成分及力学性能指标满足国家相关标准的要求,但钢板表面存在轻微的氧化铁皮压入。通过不断调整和优化Q235NH钢的加热及除鳞工艺,基本上消除了此类钢板缺陷,产品质量得到了显著提高。The article systematically describes the production process and trial development course of weatheringstructural steel Q235NH, analyzes the key working procedures during production and the quality of steel plate. The re-suits show that the chemical analysis and mechanical property indexes of the steel plate satisfy the requirements of cor-responding national standards, only slight rolled - in oxidized scales exist on plate surface. By repeated adjustment andoptimization of reheating and descaling process, the previous defects are basically eliminated with improved product quality.

关 键 词：耐候钢 力学性能 氧化铁皮 工艺优化 

分 类 号：TG142.7[一般工业技术—材料科学与工程]