A design method for the production process of hot-rolled wide-band steel

Abstract

The invention discloses a design method for the production process of hot-rolled wide-band steel. The design method includes the following steps: 1) Statistical analysis is performed on the production data of an iron and steel plant, and the average composition of steel grades, rolling process parameters and physical parameters are established. The corresponding relationship calculation equation of the average value of mechanical properties; 2) Following the principle of cost optimization and mechanical properties meeting the requirements, the design model of steel grade composition and rolling process is established according to the equations provided by 1): 3) The steel calculated according to the model Various components, target setting values ​​of operating process parameters and operating deviations of operation are determined to determine the actual production process organization for production. The invention can reduce the labor amount 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, in particular, the invention relates to a steel grade production process design method based on a mechanical property prediction model of hot-rolled wide-band steel. Background technique [0002] China is a big 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, more and more customers are customizing the performance of steel. At present, steel mills are By setting different steel grades, components, and operating processes to meet the personalized customization needs of customers, and each steel product grade needs to correspond to a product quality plan (including steel grade components and production process operation points), this is As a result, the number of product quality plans has increased, and the number of product quality plans for each prod...

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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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