Method for simulating structure evolution of cores in pre-rolling heating process of continuous casting plates
A technology of heating process and continuous casting plate, which is applied in the direction of metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of resource waste, core tissue sampling and analysis difficulties, etc., to avoid waste of resources and improve production efficiency , the effect of reducing production costs
Active Publication Date: 2019-05-21
湖南华菱涟源钢铁有限公司 +1
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[0004] The purpose of the present invention is to provide a method for simulating the microstructure evolution of continuous casting slabs before rolling, aiming to solve the difficulty of sampling and analyzing the core structure of the continuous casting slabs in the prior art during the pre-rolling heating process and waste of resources technical issues
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[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. Attached below by reference Figure 1-9 The described embodiments are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0039] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or...
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The invention belongs to the technical field of metal rolling, and particularly relates to a method for simulating structure evolution of cores in the pre-rolling heating process of continuous castingplates. The method comprises the following steps that S1, the material parameters and the in-furnace duration of a first continuous casting plate blank are determined, and the core temperature obtained after the first continuous casting plate blank is heated is determined according to the temperature gradient of the first continuous casting plate blank in the heating process; S2, the material parameters, the in-furnace duration and the core temperature are input into a second-stage machine system of an industrial heating furnace for inverse programme calculation, and the heating furnace temperature is determined; S3, a core sample of a second continuous casting plate blank is provided, and the core sample is heated according to the heating furnace temperature and the in-furnace duration so as to simulate the core structure of the first continuous casting plate blank; and S4, the core sample is subjected to air cooling, and the structure state of the core sample is observed. Thus, simulation of the core structures of the continuous casting plate blanks in the heating process is achieved, operation of completing core sampling for heated continuous casting plates on site in actual production is not needed, resource waste is avoided, and production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of metal rolling, and in particular relates to a method for simulating the evolution of the core structure in the heating process of continuous casting slabs before rolling. Background technique [0002] In the production of steel rolling, the continuous casting plate must be heated before rolling. After the heating is completed, it is necessary to sample and analyze its structure to determine its state, and use this as a basis to formulate the next step of rolling. Manufacturing process parameters. [0003] When judging the microstructure state of the continuous casting plate after heating, the microstructure state of the core part shall prevail. However, due to the complex on-site environment of the heating workshop, it is difficult to sample the core of the continuous casting plate, and sampling the core of the continuous casting plate is likely to damage the overall structure of the continuous casting p...
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Inventor 刘宁李光辉杨志刚刘旭辉谢光辉
Owner 湖南华菱涟源钢铁有限公司