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Modernization of 20-high reversing mill at HUGO VOGELSANG GmbH & Co. KG

Project description

The 20-high reversing mill at HUGO

VOGELSANG has undergone extensive

modernization by ANDRITZ Sundwig.

The complete control electronics now

correspond to today’s state-of-the-art

equipment. Moreover, the drive and

control systems have been replaced,

and all drive motors completely over-

hauled. A modular and digital control

system consisting of automatic thick-

ness, strip shape and strip tension con-

trols, as well as a strip guiding system

are now being used as a replacement

for the previous line control system.

The automation system deals with co-

ordination of the classic sequence and

media control, as well as including a

technological process computer to en-

sure optimum production. Operation of

the line is controlled from a centralized,

air-conditioned, main control stand. For

this purpose, the rolling mill operator is

assisted by a comprehensive process

visualization system as well as a video

system. Extension of the fault indication

and evaluation tools permits a prompt

analysis of any deviations occurring, as

well as contributing to line process op-

timization and improved maintenance.

In designing the main control stand,

particular attention was directed to the

ergonomic design of the working envi-

ronment. The hydraulic screw down of

the mill and the control device for inter-

mediate roll shifting were also renewed

at the same time. The horizontally ad-

justable steering rolls added in the entry

and exit sections enable simple rolling

of wedge-shaped strip. In order to opti-

mize the strip guiding system, the entry

and exit tables were re-machined. In the

mill stand itself, the cooling and spray

plates were optimized and the rolling oil

cooling system provided with a new filt-

ration system.

Line data

CustomerHUGO VOGELSANG GmbH & Co. KG,

Hagen, Germany

Strip thickness 0.04 mm-3.5 mm

Strip tensions 6 kN-180 kN

Strip speed 500 m/min

Material C-steels and alloyed steels

Rolling force 2,400 kN

Drive power 2 x 450 kW

After modernization work, strip thickness

deviations of 1-2 microns and strip shape

deviations of 4-6 I-units were achieved. The

quality reports below show the strip thick-

ness and strip shape results during accep-

tance tests for a selected wedge-type strip.

▲ Statistical process control

ANDRITZ Sundwig’s scope of supply

Mechanical modernization projects

Hydraulic screw down

Axial shifting of the intermediate rolls

Guide and spray plates

Steering roll unit with shielded shapemeter roll

Modernization of the shape measurement and control systems

Electrical modernization of the mill stand and

the rewinding groups

Automation systems

Technological control systems for strip thickness, roll force,

strip tension, strip guiding, and strip flatness

Drive technology

Main control desk with process visualization and video system

Technological process computer

▲Reversing mill with recoiling groups

Double coiler, revolver type

Rewinding group, left Rewinding group, right

Roller-type coiler

All data, information, statements, photographs, and graphic illustrations in this leaflet are without any obligation and raise no liabilities to or form part of any sales contracts of ANDRITZ AG or any affiliates for equipment and/or systems referred to herein. © ANDRITZ AG 2013. All rights reserved. No part of this copyrighted work may be reproduced, modified or distributed in any form or by any means, or stored in any database or retrieval system, without the prior written permission of ANDRITZ AG or its affiliates. Any such unauthorized use for any purpose is a violation of the relevant copyright laws. ANDRITZ AG, Stattegger Strasse 18, 8045 Graz, Austria ASundwig.Vogelsang.Modernisierung.20-Rollen-Reversiergerüst.EN

ANDRITZ Sundwig GmbHStephanopeler Str. 22, 58675 Hemer, GermanyTel.: +49 (2372) 54 0Fax: +49 (2372) 54 200sundwig_welcome@andritz.com

Turnkey systems for the processing of steel, stainless steel, coated metals, non-ferrous metals and special materials

Cold rolling mills for reducing, skin passing, cladding, and finish rolling in 20-high, S6-high (18-high), 12-high, 6-high, 4-high, 2-high designs and combinations of 2-high/4-high or 4-high/S-6 high design, available as one-way, reversing or tandem mill, in-line and offline

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Automation Complete electrical equipment including drive systems, process automation and level-2-systems for cold rolling mills, strip processing lines and finishing lines. Technological control systems for cold rolling mills, such as thickness control systems (AGC) as well as fully automatic roll change systems for rolling mills

Modernization of existing production equipment

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