Silicon steel lines

Processing

High-performance silicon steel strip processing lines

Here are the lines you need for producing silicon steel - from non-grain-oriented to highly permeable grain-oriented grades. You get complete plants from a single source, including mechanical, process and furnace technology as well as electrical and automation systems, plus process know-how. Furthermore, all our lines feature special equipment geared specifically to silicon steel strip.
Producing grain-oriented silicon steel involves several strip processing lines. The main elements are an annealing and pickling line (APL), a decarburizing and coating line (DCL), and a flattening and coating line (FCL).

Line Concepts

Non-grain-oriented processing lines

Characteristics
Annealing and coating lines (ACL) produce fullyfinished non-grain oriented (NGO) material. One highlight here is the recrystallization furnace with advanced water cooling and a hydrogen content of up to 100%. Equally important is advanced roll-coater technology with closed-loop thickness control. Finally, floatation furnaces with contactless drying of the coating and high specific heat transfer ensure excellent product quality. So what exactly does an annealing and coating line do? It cleans, recrystallizes, and coats the steel with an insulation layer. Whenever the carbon content of the material is higher than approx. 30 ppm, a decarburization function must be integrated in the furnace . That prevents magnetic overaging.
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Annealing and pickling lines

Characteristics
More versatile than other types, annealing and pickling lines anneal and descale grain-oriented as well as non-grain-oriented hot strip. They come with stand-out components such as side trimmers with edge warming, state-of-the-art furnaces, and turbulence pickling tanks with special silicon desludging systems.
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Decarburizing and coating lines Grain-oriented processing lines

Characteristics
There is a soaking section in DCL furnaces used for decarburization annealing. Here, a humidified atmosphere reduces the carbon content to avoid magnetic aging of the product. As an option, this furnace type is also ideal for nitriding. Next, after annealing, the strip is coated with water-based magnesia slurry in a horizontal coater. This section features closed-loop thickness control, temperature control, and special conditioning of the coating solution.
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Flattening and coating lines Grain-oriented processing lines

Characteristics
The purpose of flattening and coating lines is to apply and dry the tension-active solution and to improve strip flatness. It starts with a horizontal coater which applies the conditioned isolation coating solution in a precise thickness. A special feature is the filtration of the MgO solution, leading to a 90% reduction in water consumption. The drying furnace is divided into a radiant-tube section for drying and a direct-fired section for sintering. Then thermal flattening takes place in a horizontal furnace with tight strip tension control – to avoid any negative impact on final properties and to ensure better flatness.
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Technology

Special equipment

Ultimate solutions for silicon steel

We customize our special equipment for the particular requirements of silicon steel strip. Also important for you is that all components mesh with each other. That boosts the capacity, quality, and overall performance of these lines.

Here is an example of what our adapted turbulence pickling system looks like. It involves a special tank shape and corresponding equipment in the circuit system to facilitate largely automated silicon oxide sludge removal. Heating the coils as well as the strip edges aids smooth strip running. This special handling also reduces strip damage and tearing. The coating has a crucial impact on the material properties of the final product. That's why we install special roll coaters for high-precision coating. Another feature that ensures top coating quality is exact temperature control of the coating medium in the circulation system.

Special equipment image
Special equipment image

The coating has a decisive influence on the material properties. That's why we integrate high-precision roll coaters.

Special equipment image

Our pickling tanks are specially designed for automated silicon oxide sludge removal.


X-Pro® laser welder

Fast, safe, and successful welding of challenging steel grades

Precise, fast and reliable. The X-Pro Laser welder from SMS group for continuous production of difficult-to-weld steel grades.

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Selected References


Service

eDoc

Digital documentation: First step to a smart plant

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Emergency support - Remote Service

For easy identification of defects and malfunctions and quick initiation of measures for fault elimination.

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Equipment check

Regular inspections and maintenance form the basis for safeguarding the efficiency of your equipment.

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Long-term maintenance services

SMS group offers you the full range of services along the value chain, while you can focus entirely on your core competences.

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Electrical and Automation systems

Level 2 system

As a key to increasing the efficiency of modern processing lines

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X-Pact® Basic Automation

Innovative system with diagnostics for startup, devices, sequences, safety, and plant

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X-Pact® Coating Control

Coating control for chem-coater, prime-coater and finish-coater

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X-Pact® Condition Monitoring

Innovative condition monitoring in Level 1 software solution

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X-Pact® Line Drive Control

Innovative line drive control combined with optimal drive hardware

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X-Pact® Looper Control

Production rate optimization

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X-Pact® Tension Leveler Model

Control of flatness with tension leveler

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Product quality analyzer (PQA)

Solution for smooth process flow and constant high quality

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Upgrade package

New state of the art hardware, latest development software

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Virtualization

Safeguarding plant lifetime

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X-Pact® Business Intelligence

Systematic analysis of data in an electronic form

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X-Pact® Condition Advisor

The transparent plant

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X-Pact® Drive

Low voltage frequency converter as integral part of X-Pact®

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X-Pact® Energy Advisor

Energy management for metallurgical plants and rolling mills

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X-Pact® MES 4.0

Production planning and scheduling for all production units in the plant

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X-Pact® Vision Mobile Operation

Easy access on process results - Full information and control everywhere

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X-Pact® Vision Operation and Visualization

Innovative HMI and new control station

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Downloads

Plant technology
Strip Processing Lines
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Furnace technology
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Service
Maintenance service
Electrical and Automation Systems
Future-proof complete solutions from one source - Electrics and Automation

Contact

SMSgroup Timmerbeul, Walter

Walter Timmerbeul

SMS group GmbH
Vice President Electrics/Automation Processing Lines and Furnaces
Eduard-Schloemann-Str. 4
40237 Düsseldorf
Germany

Phone : +49 211 881 5708
Fax : +49 211 881 775708

SMSgroup Jaenecke, Markus

Markus Jaenecke

SMS group GmbH
Technical Sales Processing Lines
Eduard-Schloemann-Str. 4
40237 Düsseldorf
Germany

Phone : +49 211 881 5218
Fax : +49 211 881 775218

SMSgroup Genssler, Ronald

Ronald Genssler

SMS group GmbH
Service Processing Lines
Ohlerkirchweg 66
41069 Mönchengladbach
Germany

Phone : +49 2161 350 3570
Fax : +49 211 881-774162