Design method of hot-rolled wide strip steel production process

Abstract

The invention discloses a design method of a hot-rolled wide strip steel production process, which comprises the following steps of: 1) carrying out statistical analysis on production data of a steel plant, and establishing a calculation equation of a corresponding relationship among a component average value of a steel grade, a rolling process parameter and a physical and mechanical property average value; 2) according to the principles that the cost is optimized and the mechanical property meets the requirements, establishing a design model of the steel grade components and the rolling process according to the equation provided in the step 1); and 3) according to the steel grade components calculated by the model, the target set values of the operation process parameters and the operation deviation of operation, determining an actual production process organization for production. The method can reduce the workload of technicians, improve the automation level and reduce the alloy cost.

Description

technical field [0001] The invention belongs to the technical field of iron and steel metallurgy. Specifically, the invention relates to a method for designing a steel production process based on a model for predicting mechanical properties of hot-rolled wide-band steel. Background technique [0002] China is a large steel country with an annual output of more than 1 billion tons of crude steel. Steel is widely used in various fields of national production. With the development of the economy, there are more and more personalized customizations of steel performance by customers. At present, steel mills are By setting differentiated steel grades, components, and operating processes to meet the individual customization needs of customers, and each steel product grade needs to correspond to a product quality plan (including steel components and production process operation points), which is As a result, the number of product quality plans is increasing, and the number of produc...

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Problems solved by technology

[0002] China is a large steel country with an annual output of more than 1 billion tons of crude steel. Steel is widely used in various fields of national production. With the development of the economy, there are more and more personalized customizations of steel performance by customers. At present, steel mills are By setting differentiated steel grades, components, and operating processes to meet the individual customization needs of customers, and each steel product grade needs to correspond to a product quality plan (including steel components and production process operation points), which is As a result, the number of product quality plans is increasing, and the number of product quality plans for each production line reaches hundreds or even thousands. The daily maintenance of product quality plans takes up a lot of working time for steel plant employees

Moreover, the work of making quality plans and managing quality plans is very complicated, including the development of technical operating procedures by the technology research and development department, and the distribution of technical operating procedures by the production plant. Each quality plan takes 2 to 3 days, occupying technical personnel More than 10 hours of working time can be formulated and communicated to the hands of the operating staff. This work is time-consuming and labor-intensive

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