Analysis and Prevention of Hardness Problems of BUR Barrel of Wide Plate Mill
This paper collects and analyzes the hardness distribution of primary tempering of 43 BURs of wide plate mill after differential temperature heat treatment,and has found that only 81%of these rolls are qualified.After supplementary tempering all rolls are qualified,but the phenomenon of abnormal hardness is not completely eliminated.Basing on specific cases,this study analyzes the causes of abnormal hardness,puts forward optimization measures to prevent the abnormal hardness,reduce tempering cost,and improve the overall hardness uniformity of BUR of the wide plate mill.
BUR of wide plate millsupplementary temperingprocess optimization
NETL
NSTL
万方数据
