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Finish rolling control method and device of a ferrite rolling process
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A control method and ferritic technology, applied in rolling mill control devices, manufacturing tools, metal rolling, etc., can solve the problem that the quality of ferritic steel cannot be guaranteed, the rolling stability is affected, and the deformation resistance rolling of finishing stands Problems such as large deviation of rolling force and rolling parameters
Active Publication Date: 2019-10-29
SHOUGANG JINGTANG IRON & STEEL CO LTD
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[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a finishing rolling control method and device of the ferritic rolling process, which is used to solve the problem of finishing the ferritic steel in the conventional hot rolling production line in the prior art. The deviation of rolling parameters such as deformation resistance and rolling force of the rolling stand is large, which affects the stability of rolling and leads to technical problems that the quality of ferritic steel cannot be guaranteed
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Embodiment 1
[0034] This embodiment provides a finishing rolling control method of a ferrite rolling process, such as figure 1 As shown, the method includes the following steps:
[0035] Step 110, establishing the steel grade number based on the ferrite rolling process.
[0036] In this step, because the conventional rolling process production line is used to roll ferritic steel, in order to avoid the interaction between the self-learning parameters of ferritic rolling and conventional rolling parameters, a steel race based on ferritic rolling process is established No., to isolate the self-learning parameters for ferritic rolling. Wherein, the self-learning parameters specifically include: deformation resistance, rolling force and rolling temperature.
[0037] Step 111, establishing a finish rolling deformation resistance model based on the ferrite rolling process.
[0038] In this step, after the steel grade number based on the ferrite rolling process is established, a finish rolling ...
Embodiment 2
[0108] Corresponding to Embodiment 1, this embodiment also provides a finish rolling control device for ferrite rolling process, such as figure 2 As shown, the device includes: a first establishment unit 21, a second establishment unit 22, a setting unit 23 and an adjustment unit 24; wherein,
[0109] The first establishment unit 21 is used to establish the steel grade number based on the ferrite rolling process; specifically, because this embodiment uses the conventional rolling process production line to roll ferritic steel, in order to avoid ferritic rolling The self-learning parameters and conventional rolling parameters interact with each other, so the first establishment unit 21 establishes the steel grade number based on the ferrite rolling process, and isolates the self-learning parameters of ferrite rolling. Wherein, the self-learning parameters specifically include: deformation resistance, rolling force and rolling temperature.
[0110] After the steel class number...
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Abstract
The invention provides a finish rolling control method and device for a ferrite rolling process. The finish rolling control method comprises the steps that the steel type family number based on the ferrite rolling process is established; a finish rolling deformation resistance model based on the ferrite rolling process is established; and an initial value of self-learning parameters in the finish rolling deformation resistance model is set, wherein in the finish rolling process, an adjustment factor zeta i of the deformation resistance model is adjusted according to the chemical components of the steel type, i represents the serial number of a finishing mill, and i is equal to 1 or 2 or 3 or 4 or 5 or 6 or 7. In this way, by independently establishing the steel type family number of the ferrite rolling process, the rolling process of ferrite steel is simulated according to actual data of the conventional rolling process, the self-learning parameters of the deformation resistance model are constantly adjusted, finally, the initial value of the self-learning parameters is determined, the initial value is adjusted through the adjustment factor zeta i in the rolling process, in the rolling process of the ferrite steel, the deviation of the deformation resistance, rolling force and other rolling parameters of a rack are controlled within a preset error range, and then the quality of the ferrite steel is guaranteed.
Description
technical field [0001] The invention belongs to the technical field of hot rolling, and in particular relates to a finishing rolling control method and device of a ferrite rolling process. Background technique [0002] Pure ferritic structure has good plasticity and toughness, and ferritic steel is widely used in various industries because of its good corrosion resistance and oxidation resistance. [0003] When ferritic steel is produced on a conventional hot rolling production line, the entry and finish rolling temperatures of the finish rolling are lower than those of the conventional rolling process, which makes it difficult to control; and due to the limitation of the production line design conditions, the The model calculation of key parameters such as the deformation resistance calculation of strip finishing, rolling speed and rolling force produces large deviations, which affects the rolling stability and process index control accuracy, and then affects the quality of...
Claims
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