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A technology for controlling strips and steel strips, which is applied in the field of metallurgical cold rolling, and can solve problems such as flatness of flatness not meeting the target requirements, strip deviation, etc.
Active Publication Date: 2019-07-02
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology
[0004] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a method and device for controlling the shape of the strip, which is used to solve the problem that the flatness of the strip cannot be reached when the coiler coils the strip in the prior art. Target requirements, technical problems that cause the strip to deviate on the subsequent processing line
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Embodiment 1
[0041] This embodiment provides a method for controlling the strip shape, such as figure 1 As shown, the method includes:
[0042]S101, controlling the variation of the verticality of the coiler shaft to be less than 0.1mm / m, and controlling the variation of the horizontality of the mandrel to be less than 0.1mm / m;
[0043] In this step, in order to reduce the amount of change in the position of the mandrel before and after the large plate of the coiler rotates, the change in the verticality of the mandrel of the coiler is controlled to be less than 0.1mm / m, and the change in the level of the mandrel is controlled to be less than 0.1mm / m.
[0044] Specifically, see figure 2 , the mandrel includes a first mandrel 21 and a second mandrel 22, and the operation side entrances of the first mandrel 21 and the second mandrel 22 all have outer support arms. In this embodiment, the operation of each outer support arm A gasket is added at the side entrance to control the variation ...
Embodiment 2
[0058] Corresponding to Embodiment 1, this embodiment provides a device for controlling the strip shape, such as image 3 As shown, the device includes: a first control unit 31, a second control unit 32, an acquisition unit 33, a compensation unit 34, a third control unit 35 and a judgment unit 36; wherein,
[0059] In order to reduce the amount of change in the position of the mandrel before and after the coiler large plate rotates, the first control unit 31 is used to control the change in the verticality of the mandrel of the coiler to be less than 0.1mm / m, and to control the change in the level of the mandrel Less than 0.1mm / m.
[0060] Specifically, see figure 2 , the mandrel includes a first mandrel 21 and a second mandrel 22, and the operation side entrances of the first mandrel 21 and the second mandrel 22 all have outer support arms. In this embodiment, the operation of each outer support arm A shim is added at the side entrance, and the first control unit 31 contr...
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Abstract
The invention provides a method and device for controlling the strip shape of strip steel. The method comprises the steps of controlling the variable quantity of the perpendicularity of a center spindle of a coiling machine to be less than 0.1 mm / m and controlling the variable quantity of the levelness of the center spindle to be less than 0.1 mm / m; controlling the rising time of an outer supporting arm of the coiling machine to be 6-8 s; acquiring coordinates, the serial number, the maximum rolling width, the practical width, the practical strip steel total tension, the maximum coiling tension, the tension effect amplification coefficient and the compensation coefficient of the strip steel in a strip shape instrument region and the rotating angle of the coiling machine; compensating for the horizontal deviation of the outer supporting arm according to the coordinates, the serial number, the maximum rolling width, the practical width, the practical strip steel total tension, the maximum coiling tension, the tension effect amplification coefficient and the compensation coefficient of the strip steel in the strip shape instrument region and the rotating angle of the coiling machine;conducting compensation adjustment on the horizontal deviation of the outer supporting arm in the coiling process in real time. The stability of the coiling process is improved. The straightness of the strip shape is further improved. Deviation of the strip steel during on a subsequent treatment line is avoided.
Description
technical field [0001] The invention belongs to the technical field of metallurgical cold rolling, and in particular relates to a method and a device for controlling the shape of a strip steel plate. Background technique [0002] The level of product shape quality control is one of the important indicators to measure the core technology of tandem cold rolling mills. With the increasing demand of users for the limit specifications of strips, higher requirements are put forward for the shape control ability and level of tandem cold rolling mills . [0003] However, during the rotation of the large plate of the coiler, the flatness detected by the flatness meter is tilted, which leads to the fact that the flatness IU of the flatness cannot meet the target requirements, and it is very easy to cause deviation in the furnace area of the subsequent processing line. Contents of the invention [0004] Aiming at the problems existing in the prior art, the embodiment of the presen...
Claims
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Application Information
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