Method for online test of steel plate mechanic property during rolling process

Abstract

The invention relates to a method for testing the mechanical of the steel plate on line when rolling, providing a comprehensiveness on-line predicting method based on the physico-metallurgy model and combined with the database, information technology through setting up a corresponding model of microscopic structure, finished size, art component to the mechanical. The method including the following steps: (a) selecting and confirming the parameter of the model; (b) setting up the real-time traffic to the processing machine, calling the art parameter and alloying component dynamic data from the processing database; (c) predicting the ferrite grain size and temperature (d) predicting mechanical of the finished plate. The invention is used specially for low-carbon steel and mini alloyed steel, the adaptive process is heavy and medium plate mill or big mill and finisher in rolling process.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, in particular to a method for on-line detection of steel plate mechanical properties during rolling. Background technique [0002] It is a long-term dream of human beings to realize full-length non-destructive online real-time continuous detection of tissue and performance. Through the development of tissue performance prediction technology and the establishment of a real-time monitoring system, people's dream can become a reality. Establishing a soft instrument for testing the rolling process will greatly reduce the amount of experiments, shorten the development cycle, shorten the delivery time of products, and improve product quality and yield. With the continuous improvement of iron and steel industry equipment and technology, especially the rapid progress of computers, database AI, information technology, and automation technology, people can obtain a large amount of online information ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing microstructure and property prediction systems are only suitable for the production process of hot-rolled thin strip steel. For the medium and heavy plate rolling process, the microstructure and property are not uniform due to detection methods, data communication, model accuracy, and blank thickness. Due to the influence of many factors such as nature and nature, there are very few research and application results reported in this field at home and abroad, which limits the development of TMCP technology to a certain extent.

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