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Upgrade and Analysis of Automatic Strip Steel Gauge Control System in 1450 Hot Strip Mill in Panzhihua Iron and Steel Co.

Author: DuHeLai
Tutor: TangYiKe
School: Chongqing University
Course: Mechanical Engineering
Keywords: Dynamic Set AGC Electro-hydraulic position servo system Dynamic Characteristics Analysis Three zoom electro-hydraulic servo valve Dynamic Testing Basic automation
CLC: TG333
Type: Master's thesis
Year: 2004
Downloads: 282
Quote: 1
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Abstract


The paper discusses the status of the hydraulic automatic gauge control system with the development and analysis of the characteristics of all hydraulic automatic gauge control system (HAGC) . Paper mill F4-F6 mill of Panzhihua Iron and Steel 1450 original HAGC model is difficult to meet the production process requirements , the same time, the F1-F6 mill after three technological transformation of our invention is based on a dynamic set of \(DAGC) model resolution, on this basis , the F1 ~ F6HAGC transformation specific programs and measures . Factors the papers of transformation after F1 - F3HAGC , the F4 - F6HAGC System hydraulic system static , dynamic characteristics were theoretical calculations and system simulation , three hydraulic servo valve structure , and affect the stability of the servo valve made analysis showing that the three servo valve PD correction link either the stable operation can be broadened its frequency band , while the small pilot two servo valve damping is also conducive to the stability of the three of the valve system . Papers more detailed analytic algorithm of the 1450 mill the HAGC control model DAGC model , and investigate the metal flow compensation calculation equation the the monitor AGC DAGC shared and about eccentric rolling force compensation , mill stiffness the theory and application of methods of compensation , roll thermal crown and wear changes in compensation , oil film bearing thickness compensation , the DAGC technology application situation and its effect on the strip rolling mill . Developed a hydraulic servo position system dynamic test system , system programming development platform uses a combination of programming in Visual Basic and Borland C , with high precision , good real-time performance , versatility , man - machine interface is friendly and easy to operate . suitable for dynamic testing of the high-precision , high response of electro-hydraulic servo system ; explore a new way for the future use , maintenance , debugging HAGC and accumulated a certain amount of research experience . Thesis research theories and methods put into use with a larger theoretical significance and economic value of the the HAGC function of normal .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > Rolling > Rolling mill machinery equipment
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