FIELD: metallurgy. SUBSTANCE: invention relates to technology of cold rolling on continuous wide-sheet mills and may be used in setting-up rolls between their operating periods. Method involves displacing a pair of rolls out of stand, leveling temperature along the length of roll bodies, and their refacing. Once refaced, rolls are heated with variable intensity along the length of roll bodies, heating intensity from edge to center of body increasing within the range from 0.5 to 3 C/min and ratio of hot liquid fed onto lower and upper rolls being (0.8-0.9):1. EFFECT: increased endurance of rolls due to producing charge heat profile. 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR TREATING FORMING ROLLS BEFORE OPERATION | 1989 |
|
RU2095167C1 |
| METHOD FOR OPERATION OF MILL ROLLS | 0 |
|
SU1764727A1 |
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|
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|
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| INSTALLATION FOR HEAT PREPARATION OF ROLLING ROLLS | 1993 |
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| METHOD OF PREPARING ROLLS FOR OPERATION | 1993 |
|
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| INSTALLATION FOR CLEANING PARTS | 0 |
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| METHOD OF PREPARATION OF ROLLING MILL WORK ROLLS | 2005 |
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| METHOD FOR PREPARING ROLLING ROLLS OF QUARTO-STANDS OF FINISHING GROUP OF STANDS IN WIDE-STRIP HOT ROLLING MILLS | 2002 |
|
RU2211736C1 |
| METHOD OF PREPARATION OF MILL ROLLS | 0 |
|
SU1694268A1 |
