Control method for hot rolled low carbon steel uncoiling cross creases
A control method and horizontal folding technology, which is applied in the field of metallurgy, can solve the problems of low surface quality of hot-rolled low-carbon steel sheets, and achieve the effects of prolonging service life, improving production efficiency and product qualification rate, and improving product quality
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[0033] A method for controlling cross-folding of hot-rolled low-carbon steel uncoiling, comprising the following steps;
[0034] Step 1. Real-time detection of the diameter of the hot-rolled low-carbon steel coil to be uncoiled;
[0035] Step 2, the diameter of the hot-rolled low-carbon steel coil that measures according to step 1 adopts following formula to calculate the reduction of deep bending roll:
[0036] Deep bending roll reduction = 4250+275-535.2*ln(Diam)-m*(Diam-n)^2
[0037] In the formula, ln represents the logarithm;
[0038] Diam represents the diameter of the current hot-rolled low-carbon steel coil;
[0039] m is 0.00009;
[0040] n is 1300;
[0041] Step 3, pressing down the deep bending roll according to the reduction value of the deep bending roll calculated in step 2, and uncoiling the hot-rolled low carbon steel coil;
[0042] Utilize above-mentioned formula, carry out programming in PLC, realize the real-time detection of the diameter of above-menti...
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