Research Status on Causes and Control of Warping Defect on Surface of Hot Rolled Plate and Strip
The warping on surface of hot rolled plate and strip is always the common defect that troubles production of high quality strip.The causes for warping defect on surface of steel could be throughout the whole process of steel produc-tion such as smelting,continuous casting,hot rolling and cold rolling.The types of warping defect are various and influen-cing factors are complex.The causes of common warping defect are classified into 5 types based on their morphology and microstructure characteristics,which are subsurface inclusions,surface cracks,subsurface bubbles,rolled-in scale and edgefold of intermediate billet.The probability of occurrence of warping defect for products could be reduced significantly by enhancing management of production equipment and process interfaces,especially increasing the level of continuous casting process from the origin to improve surface quality of ingot blank.
hot rolled plate and stripwarping defectcontinuous casting billetsurface defects
万方数据
维普
