Centre De Recherches Metallurgiques Asbl

Centre De Recherches Metallurgiques Asbl-centrum Voor Research in De Metallurgie Vzw

Genevieve Moreas

Guy Monfort

Marc Schyns

Yves Hardy

Olivier Herbiet

A method for electromagnetic and real-time measurement of a percentage of austenite contained in a steel strip in continuous motion during in-line manufacture or transformation thereof, by a device including the steel strip and a measuring device including at least: an alternating-current generator; a first coil supplied by the alternating-current generator, called a transmitting coil, and a second coil, called a receiving coil, the first and second coils being arranged parallel to each other or coaxial and on both sides of the steel strip, a distance between the coils being fixed and between 10 and 200 mm; a core of ferromagnetic material being a center of each coil, respectively; and at least one voltage-measuring device connected to terminals of the receiving coil, being a multimeter or an electronic acquisition system having an analog-digital converter coupled to a computer, to obtain the percentage of austenite contained in the steel strip.

Device for the in-line measurement of the percentage of austenite in steels

A method for automated, in-line measurement of a differentiated surface cleanliness, in terms of carbon, of a continuously-moving metal sheet or strip, having a level of surface carbon pollution lower than 100 mg/m, includes: generating a radiation beam using a source; focusing the radiation beam using a focusing device such that an energy density deposited on the metal strip or sheet is sufficient to create a plasma and generate CN radicals in the plasma if carbon and nitrogen are present; creating a nitrogen atmosphere around the plasma using a sweeping system with a flow rate that prevents any presence of oxygen from air in the plasma; analyzing light emitted by the plasma using an optical collection device, and redirecting the light toward a spectrometer or device for separating wavelengths of the emitted light; measuring an intensity of an intense vibration line of the CN radical.

Growing community of inventors

Wanze, Belgium

Genevieve Moreas