A growing portfolio

EMG QA solutions for the cold rolling sector

The increased demands on new materials and ever more complex and durable components require increasingly higher process reliability in the production of steel and aluminium strips. For decades, EMG has concentrated on optimising the production steps in the cold processing of the strips produced, including the pickling process. On the one hand, this concerns the large and, so to speak, traditional area of application of EMG strip guiding systems and, on the other hand, for more than 20 years, the extensive field of quality assurance systems (QA systems).

A look at EMG's product portfolio in this sector shows that it already covers a wide range of quality-determining properties of the strip produced. On the one hand, this concerns the non-contact optical measurement of the strip width in all relevant process stages and, on the other hand, the online measurement of important material properties, namely the parameters for strip roughness (Ra and Rpc) and strip strength (tensile strength and yield strength), via laser-optical and inductive measurement methods.

In particular, EMG offers measurement and control systems that help to optimise certain process steps, avoid rejects, reduce material costs and achieve higher quality.    At first, this concerns the oiling process and the measurement of the lubricant layer in various process steps, and second, the hot-dip galvanising process and the optimisation of the zinc or aluminium coating of the produced strip, also with regard to the strip edge quality.

The systems are briefly portrayed in the following:

EMG BREIMO is the non-contact, optical strip width measurement for continuously running processes in the metal industry. The system works with two sensor positioning devices EVK, the corresponding light emitters and a common linear stroke transducerand is largely insensitive to external interference (e.g,. ambient light).

EMG iCAM® is a modular solution that enables high-precision strip and stripe width measurement as well as edge crack and hole detection. The different measuring tasks can be combined as desired. 

The system uses an LED illumination unit underneath the metal strip and a camera unit consisting of several CMOS cameras.

EMG IMPOC is the quasi-standard for automatic, non-destructive online measurement for the mechanical parameters tensile strength and yield strength of ferromagnetic steel strips. It works on the principle of magnetic induction.

EMG SORM 3plus is a non-contact laser-optical online measuring systemfor determining roughness values on metallic and non-metallic surfaces at production speeds of up to 2400 m/min.

EMG eMASS® is used in hot-dip coating lines for electromagnetic stabilisation and position optimisation of the ferromagnetic strip to be coated. As a result, the user obtains a homogeneous zinc coating while minimising the consumption of the coating alloy.

EMG eBACS uses inductive edge sensors to bring the so-called edge masks as close as possible to the strip to be coated in the hot-dip galvanising process. The result is a damage-free optimisation of the coating quality at the strip edges.

EMG SOLID® is the system for online measurement of oil coating thickness on running strips. The typical application spectrum of EMG SOLID® ranges from the rolling mill, where the initial oiling takes place, to the metal processor. Either a method based on infrared spectroscopy: EMG SOLID® IR or on laser-based fluorescence spectroscopy: EMG SOLID® LIF is used.  

CONCLUSION: You will find EMG's quality assurance systems in many process steps of cold strip production and processing as indispensable tools for quality inspection and optimisation as well as for process improvement and reduction of scrap and material consumption. Thanks to the common EMG DNA in terms of hardware and software, incompatibilities and an excessive stock of spare parts are just a memory of times gone by for users of EMG solutions. Together with the consulting expertise of EMG's worldwide sales and service network, you can rely on EMG as a reliable partner while at the same time minimising the total cost of system purchase and use (TCO).

EMG's quality assurance systems are a living expression of our motto "Perfecting your Perfomance".

Download: QA brochure cold area

 

¿Necesita ayuda?
Podemos ayudarle.

Su contacto