FIELD: metallurgy, namely method for determining metal yielding speed non-uniformity in gap between rolls of rolling mill in motion direction of strip rolled at tension while taking into account temperature distribution across strip, possibly for rolled sheets manufacturing processes.
SUBSTANCE: method comprises steps of measuring distribution of percentage elongation values of stripe lengthwise portions of strip separated by means of measuring device. Said stripe lengthwise portions of strip are selected in such a way that they are abutted one to other without gaps and overlaps for covering the whole width of strip. Then strip tension is measured and temperature distribution in stripe lengthwise portions of strip is measured one more. Percentage excess values of metal yielding speed in strip motion direction over metal yielding speed in stripe lengthwise portion of strip at minimum metal yielding speed are calculated with use of mathematical expressions.
EFFECT: enhanced accuracy of determining non-uniformity of metal yielding speed along roll gap.
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