A digital image of each individual plate
New measuring system for final quality control at voestalpine Grobblech GmbH
nokra has successfully commissioned an optical measuring system for final quality control of roll-bonded plates at voestalpine Grobblech GmbH, Linz, Austria. The new system measures the outside plate geometry, flatness and surface condition. It is the first in the world to perform high-precision plate thickness measurements over the entire surface area.
> read here think.steel 03 | 2023
Quality management for electrical strip
Inline measurement of edge waviness at thyssenkrupp Steel Bochum
At its Bochum plant for NO grades, thyssenkrupp Steel Europe uses a laser sensor system from nokra to measure the edge waviness of non-grain oriented strip. This optical inline measuring process has replaced the previous practice of manual offline edge-wave measurements. The new system can even handle moving strips, thus enabling the measurement of edge waviness along the entire coil length.
> read here Iron & Steel Today (2023), Nov/Dec 2023, pg 12-13
Quality management at Ilsenburger
New high-precision flatness measuring system at heavy plate manufacturer Ilsenburger
At Ilsenburger Grobblech GmbH, a system from nokra measures and documents the flatness of fine-levelled plates. The nokra system ensures that all plates shipped fulfill the special tolerances on flatness specified in EN 10029. To achieve the high measuring accuracy required for this challenging task, the almost 30-m-long facility uses laser light-section sensors of the most advanced design and performs the flatness measurements on the static plate.
> read here Steel + Technology 1 (2022), page 45-49
More accurate than thyssenkrupp Steel standards
New high-precision gauge for ultra-exact flatness measurement of heavy plate
nokra has recently commissioned a high-precision flatness gauge at thyssenkrupp Steel Europe AG’s heavyplate mill in Duisburg-Hüttenheim, Germany. In comprehensive tests and investigations, it has been demonstrated that the gauge measures with a much higher precision than that specified in the applicable standards and rules. This makes thyssenkrupp Steel the first producer of heavy plate able to measure that it can produce premium plate of exceptionally good flatness.
> read here Steel + Technology 2 (2020), No. 5/6, page 66-68
Salzgitter heavy-plate mill measures optically
New system for contour and flatness measurement of heavy plate
A new optical measuring system from nokra has been installed in the heavy-plate mill of Salzgitter Mannesmann Grobblech GmbH. This system measures not only the contour, but also the flatness of the plate with highest precision, delivering data that assures optimum cutting of individual plates from the mother plates with minimum waste. It is the first system in the world to be arranged above a cooling bed, not above a roller table.
> read here Steel + Technology 2 (2020), No.4, page 53-57
Automatic control of a continuous pickling line
Gauge for crossbow measurement optimizes leveling
In continuous pickling line No. 2 of Salzgitter Flachstahl GmbH, laser gauges measure the crossbow of the strip at both the entry and exit of the pickling section. The measured data is used to optimize the performance of the upstream stretch-leveler.
> read here Steel + Technology (2019), No. 2, page 90-92
Topographic measurements at Hulamin
Optimized rolling process thanks to precise slab measurement
At its Pietermaritzburg facility in South Africa, Hulamin Rolled Products Ltd produces a wide range of aluminium sheet, plate and foil and is thus the best-known semis manufacturer in Africa. In 2015 the company invested in the slab measurement system described in this article and for it, awarded the contract to nokra in Germany.
> read here Aluminium, 12/2016, page 25-29