铸坯喷丸工艺对430铁素体不锈钢卷板表面质量的影响  

Effect of Casting Slab Shot Blasting Process on Surface Quality of 430 Ferritic Stainless Steel Rolled Coil Plate

作　　者：李鹏飞 翟俊[1,2] 杨永杰[1,2] Li Pengfei;Zhai Jun;Yang Yongjie(State Key Laboratory of Advanced Stainless Steel Materials,Taiyuan Iron&Steel(Group)Co.,Ltd.,Taiyuan 030003;Technology Center of Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan 030003)

机构地区：[1]太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,太原030003 [2]山西太钢不锈钢股份有限公司技术中心,太原030003

出　　处：《特殊钢》2022年第5期47-50,共4页Special Steel

摘　　要：430钢连铸板坯经喷丸处理后可以去除连铸坯表面原始铁鳞与保护渣残留,铸坯平均振痕深度降低0.13 mm。喷丸处理铸坯经加热炉加热后生成的氧化铁皮结构与基体存在明显界面,在热轧与酸洗过程容易去除,避免了夹渣与氧化残留造成的冷板表面粗糙条纹类缺陷,酸洗板表面粗糙度由3.15μm降低至2.78μm,冷板粗糙度由0.047μm降低至0.041μm,冷板表面质量接近修磨工艺。430不锈钢铸坯喷丸工艺可替代修磨工艺。After shot blasting of 430 steel cast slab,the original scale and residual mould fluxes on the surface of casting slab can be removed,and the vibration mark depth of casting slab can be reduced by 0.13 mm.After the shot-blasting,the slab is heated by a heating furnace,there is an obvious interface between the iron scale and the substrate,which is easy to remove during hot rolling and pickling to avoid the defects of rough stripes on the surface of the cold plate caused by slag inclusion and oxidation residue,as a result show that the surface roughness of pickling plate decreased from 3.15μm to 2.78μm,and that of cold plate decreases from 0.047μm to 0.041μm,surface quality of cold rolled plate in casting slab shot blasted shows that it is close to the slab grinding process.Shot blasting process of 430 stainless steel billet can replace grinding process.

关 键 词：铸坯喷丸 430铁素体不锈钢 表面质量 粗糙度 

分 类 号：TG142.71[一般工业技术—材料科学与工程]