Formation and control of strip scale pores in hot rolling

In order to solve the problem of strip surface pores generated by the combi nation of the tertiary scale on strip surface with black oxide layers produ ced on the roll surface, the mechanism of strip scale pores formation was a nalyzed using several instruments such as the SEM, the AHM-2-HL optical mic roscope and the Oxford ISIS EDAX energy spectrometer. A method of control i s advanced to reduce strip scale pores, which is effective and clearly bene ficial for enhancing the strip surface quality in practice. (C) 2001 Publis hed by Elsevier Science B.V.