Prediction of Coiling Temperature of Hot Rolled Strip Based on BP Neural Network

2014 ◽  
Vol 633-634 ◽  
pp. 679-683
Author(s):  
En Yang Liu ◽  
Wen Peng ◽  
Ning Cao ◽  
Si Rong Yu ◽  
Jun Xu ◽  
...  
Keyword(s):  
Neural Network ◽  
Bp Neural Network ◽  
Rolled Strip ◽  
Laminar Cooling ◽  
Coiling Temperature ◽  
Online Application ◽  
Hot Rolled Strip ◽  
Highly Nonlinear ◽  
Rolling Plant ◽  
Hot Rolled

Coiling temperature of hot rolled strip is one of the important parameters which affect performances of hot rolled strip. The control of coiling temperature is highly nonlinear and time-varying. Based on the laminar cooling control system of a hot rolling plant, a coiling temperature prediction model based on BP neural network was established. Many factors which affect coiling temperature control were taken into account, and the BP neural network was trained by actual production data. The simulation was carried out, which indicates that coiling temperature can be predicted precisely, and the BP neural network model has the prospect of online application.

Influence of certain factors on laminar cooling rate of hot-rolled strip

Metallurgist ◽  
1971 ◽  
Vol 15 (10) ◽  
pp. 677-678
Author(s):  
A. E. Zakharov ◽  
N. F. Legeida ◽  
D. A. Storozhenko ◽  
A. A. Azarkevich
Keyword(s):  
Cooling Rate ◽  
Rolled Strip ◽  
Laminar Cooling ◽  
Hot Rolled Strip ◽  
Hot Rolled

The Improvement of Laminar Cooling System for Hot Rolled Strip Base on Rolling Process

2013 ◽  
Vol 690-693 ◽  
pp. 3295-3298
Author(s):  
Hai Fang Wang ◽  
Xiao Guang Ren ◽  
Yu Rong
Keyword(s):  
Cooling System ◽  
Rolling Process ◽  
Rolled Strip ◽  
Measuring Instruments ◽  
Hot Strip Mill ◽  
Laminar Cooling ◽  
Hot Rolled Strip ◽  
Hot Strip ◽  
Improvement Programs ◽  
Hot Rolled

Hot strip cooling temperature and its cooling rate is get by strip cooling system and coiling temperature of hot rolled strip is an important parameter on its performance index. It presents laminar cooling system of the 700 mm hot strip mill and the mill rolling process is present, the laminar cooling system is analyzed on the rolling theory and techniques. The laminar cooling system and its problems are present. The improvement programs of laminar cooling system are present, The control system of laminar cooling system is present combining feed-forward main control and feed-backward self-learning control, and measuring instruments is reinstall and water valves is improved. It could be a reference for the similar mill units and new building rolling mills.

scholarly journals Production of Directly Quenched High-Strength Hot-Rolled Strip Steels - Influence of Rolling and Cooling Conditions on Mechanical Properties and Flatness

2016 ◽  
Vol 854 ◽  
pp. 29-34
Author(s):  
Joachim Schöttler ◽  
Thorsten Maiwald ◽  
Gunnar Linke
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Cost Effective ◽  
Rolled Strip ◽  
Coiling Temperature ◽  
Hot Rolled Strip ◽  
Direct Quenching ◽  
Cooling Conditions ◽  
Plant Trials ◽  
Hot Rolled

The production of hot-rolled sheets of high-strength and wear-resistant special structural steels by direct quenching from the rolling heat is a cost effective and energy-saving alternative to traditional production via downstream quenching the previously cut-to-length plates. Reaching the required strength and toughness parameters in combination with best flatness of the sheets requires strict compliance with the pre-set rolling and cooling conditions over the entire strip width. Using two high-strength low-alloyed steels, plant trials have been carried out to study the effect of the cooling conditions and the coiling temperature on mechanical properties, impact toughness and flatness of cut-to-length sheets made of hot-rolled strip. The results showed that by applying optimized cooling pattern and low coiling temperatures, high-strength steel sheets with outstanding mechanical properties and good flatness can be produced.

scholarly journals Effect of Coiling Temperature on Oxide Scale of Hot-Rolled Strip

2011 ◽  
Vol 415-417 ◽  
pp. 853-858 ◽  
Author(s):  
Xiang Long Yu ◽  
Zheng Yi Jiang ◽  
Xiao Dong Wang ◽  
Dong Bin Wei ◽  
Quan Yang
Keyword(s):  
Phase Composition ◽  
Oxide Scale ◽  
Low Carbon Steel ◽  
Rolled Strip ◽  
Low Carbon ◽  
Hot Strip Rolling ◽  
Coiling Temperature ◽  
Strip Rolling ◽  
Hot Rolled Strip ◽  
Hot Rolled

The influence of the coiling temperature, ranging from 550 to 570°C, on the morphology and the phase composition of the oxide scale formed on the microalloyed low carbon steel for automobiles after hot strip rolling was investigated. Physicochemical characteristics of the oxide scales were examined and their formation mechanism was discussed. Thickness of the oxide scale is in the range of 8-11µm and decreases with a decrease of coiling temperature. The microstructure and phase composition, XRD analysis shows a large amount of magnetite (Fe3O4) and some sparse hematite (Fe2O3) exist on the surface of hot rolled strip when the coiling temperature reduces from 570 to 550°C. The coiling temperature substantially affects the internal microstructure and magnetite phase.

scholarly journals Surface Defects Classification of Hot Rolled Strip Based on Improved Convolutional Neural Network

2021 ◽  
Vol 61 (5) ◽  
pp. 1579-1583
Author(s):  
Wenyan Wang ◽  
Kun Lu ◽  
Ziheng Wu ◽  
Hongming Long ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Neural Network ◽  
Convolutional Neural Network ◽  
Surface Defects ◽  
Rolled Strip ◽  
Hot Rolled Strip ◽  
Hot Rolled ◽  
Defects Classification
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