Tension control method of cold-rolled strip steel in continuous acid rolling process
A technology of tension control and cold-rolled strip steel, which is applied in the tension control of cold-rolled strip steel in the acid continuous rolling process, and in the field of tension control of cold-rolled strip steel, can solve problems such as loss of support stone and scratches on the surface of strip steel, Achieve the effect of reducing replacement costs, reducing consumption, and improving economic benefits of the enterprise
Inactive Publication Date: 2018-05-08
BAOSTEEL STAINLESS STEEL
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Problems solved by technology
[0005] The purpose of the present invention is to provide a tension control method for cold-rolled strip steel in the continuous acid rolling process. The tension control method can detect and convert the tension of the strip steel based on the torque of the tension leveler, and carry out "positive" or "positive" tension of the strip steel. "Negative" switching control, to achieve a substantial increase in the tension of the pickling tank, to solve the problem of scratches on the surface of the strip caused by the existing control method and the loss caused by frequent replacement of the support stone
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[0048] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0049] Such as figure 1 , The continuous acid rolling process unit includes the tension leveler body 1, the first tension roll group 1a, 1b, 1c, the tension leveler tension gauge 2, the second tension roll group 3a, 3b, 3c, the pickling tank body 4, the front and rear clamps Sending rollers 4a, 4b, support stone 4c, third tension roller group 5a, 5b and pickling tank tension gauge 6. Tension tester 2 of the tension leveler is used to measure the strip tension value of the tension leveler section, the pickling tank body 4 is used to pickle the strip steel, and each tension roller group is used for strip production of the tension leveler and the pickling tank tension. The control method of the present invention adjusts the strip steel tension in the tension leveler section so that the strip steel tension in the pickling tank reaches the set requirement, and u...
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The invention relates to a tension control method for cold-rolled strip steel in an acid continuous rolling process. The tension control method adopts a tension leveler frequency converter and a PLC to control the strip steel tension in the tension leveler section. When the tension setting value is greater than 0, the positive tension control is adopted. When the strip tension setting value in the tension leveling section is less than 0, the negative tension control is adopted to realize the "positive" or "negative" switching of the strip tension in the tension leveling section. Control, the tension of the strip in the pickling tank is controlled by controlling the tension of the strip in the tension-leveling machine section, and the tension of the pickling tank is greatly improved, which solves the problem of surface scratches and frequent stripping caused by the existing control method. The problem of loss caused by replacing the support stone.
Description
technical field [0001] The invention relates to the technical field of cold-rolled steel strips, in particular to tension control of cold-rolled steel strips, in particular to a tension control method for cold-rolled steel strips in an acid continuous rolling process. Background technique [0002] An important process in the cold rolling process is pickling, through which the iron oxide scale on the surface of the strip is cleaned, so as to facilitate the further processing of the subsequent unit. In the pickling unit or the pickling continuous rolling process unit, the strip often passes through the tension leveler before entering the pickling tank. Through the action of the tension leveler, not only dephosphorization is carried out on the surface of the strip steel, but also the shape of the strip steel plate is improved, and then the strip steel enters the pickling tank for pickling to improve the pickling effect. During the pickling process of strip steel, because the p...
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IPC IPC(8): B21D1/02B21C51/00C23G3/02
Inventor 肖至勇叶冬柏付博
Owner BAOSTEEL STAINLESS STEEL