FIELD: process engineering.
SUBSTANCE: proposed method comprises rolling to final sizes at one mill stand, in-line cooling, straightening and thermal treatment for homogenisation and affecting metal structure. Equalisation of metal properties or creation of various structural state over metal thickness is possible due to in-line thermal treatment carried out irrespective of previous cooling and straightening. For this, allowing for speed of sheet going out from the last, previous processing position, thermal treatment start time is selected so that steel sheet is withdrawn from said final processing position before thermal treatment.
EFFECT: higher efficiency, expanded process performances.
9 cl, 3 dwg
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