FIELD: preparation of rolls of sheet rolling stands for operation.
SUBSTANCE: method comprises steps of mounting set of backup and rolling rolls in stand; applying to rolls effort consisting 95 -100 % of rolling effort for mutually pressing rolls in plane of roll axes; rotating rolls under such load; before mounting in stand grinding rolls in order to provide mean value of roll barrel roughness exceeding standard roughness value set according to manufacturing demands of rolling process by 0.5 - 0.6 micrometers; combining ground rolling rolls to pair at difference of their barrel diameters in range 2 - 2.5 mm and also at difference of their barrel rigidity values no more than 2 - 3 units by Shore. Method provides increased at least by 2 times period of stable operation of rolls.
EFFECT: stable roughness characteristics of rolling roll surface at their further operation.
3 cl, 2 tbl
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RU2185258C2 |
Authors
Dates
2005-07-20—Published
2003-05-07—Filed