Method for determining hot rolled strip steel laminar cooling temperature

Abstract

The invention discloses a method for determining a hot rolled strip steel laminar cooling temperature and belongs to the field of steel metallurgy. The method includes the following steps that multiple data in a laminar cooling process are collected to establish a database, and a laminar cooling temperature mixed model is used for calculating the coiling temperature in the laminar cooling process. According to the method for determining the hot rolled strip steel laminar cooling temperature, a temperature value which cannot be collected in practice can be predicted, and the method can be combined with practical production data to accurately calculate the coiling temperature of a steel plate. Meanwhile, parameters can be continuously corrected through self-learning according to aging of a production line, equipment updating and the like, and errors in calculating the laminar cooling temperature can be reduced to a low level. According to the method for determining the hot rolled strip steel laminar cooling temperature, production data can be quite high in precision and consistent with the production line, and a good guiding function can be achieved in the laminar cooling production process.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy, and more specifically relates to a method for determining the laminar flow cooling temperature of hot-rolled strip steel. Background technique [0002] The iron and steel industry is an important pillar industry supporting the development of the national economy, and the development level of the modern iron and steel industry is an important manifestation of a country's technological progress and comprehensive national strength. Laminar flow cooling of hot-rolled strip steel is a process of cooling high-temperature steel plates by water cooling. During this process, changes in the crystallization of steel plates will occur. These changes can directly affect the performance of steel plates. Therefore, the precise control of the temperature It plays an important role in the production of high-quality steel plates. Its performance depends not only on the hot rolling process, but also on the...

AI Technical Summary

Problems solved by technology

The mechanism model is closer to the theoretical value of the industrial process, and more physical quantities that cannot be measured in practice can be calculated, and the mechanism analysis can be used to understand the entire system more comprehensively; Physical and chemical changes, there must be actual phenomena that are unknown at this stage, so there are loopholes in the mechanism model built in this way and it is difficult to make up for

The identification model is driven by data, only the relationship between input and output is established, and the obtained data is closer to the actual situation and more time-effective; but the identification model cannot detect and calculate the data that is not detected in the production process

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