中厚板精轧过程中除鳞工艺对氧化铁皮结构的影响  

Effect of Descaling Process on the Structure of Oxide Scale During the Finishing Rolling of Medium and Heavy Plates

作　　者：张迪 郭云侠 于帅 唐立志 黄贞益 张朋彦 ZHANG Di;GUO Yunxia;YU Shuai;TANG Lizhi;HUANG Zhengyi;ZHANG Pengyan(School of Metallurgical Engineering,Anhui University of Technology,Maanshan 243032,China)

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243032

出　　处：《安徽工业大学学报（自然科学版）》2021年第1期18-23,共6页Journal of Anhui University of Technology（Natural Science）

基　　金：安徽省自然科学基金项目(1908085QE192)。

摘　　要：以某钢厂生产的中厚板Q345B为研究对象,采用不同的轧制温度和除鳞道次对Q345B钢板进行轧制和除鳞,采用扫描电镜(SEM)、X射线衍射仪(XRD)及能谱仪(EDS)对成品表面氧化铁皮的结构及形貌进行分析,研究除鳞工艺对钢板表面氧化铁皮清除效果的影响,探索最佳除鳞工艺。结果表明:4种除鳞工艺下钢板表面生成的氧化铁皮均由FeO,Fe_(3)O_(4),Fe_(2)O_(3)组成;在后续精轧过程添加除鳞道次,由于黏性氧化铁皮影响,除鳞效果不佳;除鳞工艺一中生成的Fe_(3)O_(4)和Fe_(2)O_(3)含量较高且分布较均匀,工艺一是较理想的除鳞工艺。Taking the medium and heavy plate Q345B produced by a steel factory as the research object,Q345B steel plate was rolled and descaled through different rolling temperatures and derusting passes,the structure and morphology of the surface oxide scale of the finished product were analyzed by scanning electron microscope(SEM),X ray diffraction(XRD)and energy disperse spectroscopy(EDS).The effect of descaling processes on the removal of iron oxide scale on the surface of the steel plate was studied,and the best descaling process was explored.The results show that the iron oxide scale produced on the surface of the steel plate in the four rust removal processes is composed of FeO,Fe_(3)O_(4) and Fe_(2)O_(3);In the subsequent finishing rolling process,adding rust removal passes,and the rust removal effect is not good due to the adhesion of iron oxide;The content of Fe_(3)O_(4) and Fe_(2)O_(3) produced in the first descaling process is high and the distribution is uniform,which is an ideal descaling process.

关 键 词：中厚板 氧化铁皮 除鳞工艺 除鳞温度点 

分 类 号：TG335.5[金属学及工艺—金属压力加工]