Method and device for measuring the layer thickness of partially solidified melts
AssigneeSMS Siemag Aktiengesellschaft
InventorsNorbert Vogl, Jörg Bausch
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Abstract
The present invention relates to a method and a device for measuring the layer thickness of partially solidified melts, particularly on a conveyor belt, during continuous casting. In order to determine the layer thickness, magnetic fields are used, which are created by means of electromagnetic stirring coils that are present on one side of the layer. The reduced magnetic field is then detected on the other side of the layer and is used for calculating the layer thickness.
Claims19
1-18. (canceled)
A method for measuring layer thickness of partially solidified melts on a conveyor belt using magnetic fields as part of a strip casting process, the method comprising the steps of:
- generating a magnetic field on one side of the partially solidified melt using electromagnetic stirring coils so that the magnetic field penetrates the partially solidified melt;
- measuring, on the other side of the partially solidified melt, a remaining residual field strength of the magnetic field, which is attenuated during penetration of the melt;
- and, using the measured residual field strength to compute the layer thickness of the partially solidified melt.
A device for measuring layer thickness of partially solidified melts on a conveyor belt, comprising:
- a unit for generating a magnetic field on one side of the partially solidified melt;
- and at least one sensor for measuring the magnetic field on the other side of the partially solidified melt after the magnetic field has penetrated the partially solidified melt, wherein the unit for generating the magnetic field includes electromagnetic stirring coils, the device being operative to use attenuation of the magnetic field measured by the sensor on the other side of the partially solidified melt to compute the layer thickness of the partially solidified melt.
An installation, comprising:
- a conveyor belt of a strip casting installation for conveying a partially solidified melt;
- and a device for determining layer thickness of the partially solidified melt, the device for determining layer thickness including a unit for generating a magnetic field on one side of the partially solidified melt, and at least one sensor for measuring the magnetic field on the other side of the partially solidified melt after the magnetic field has penetrated the partially solidified melt, wherein the unit for generating the magnetic field includes electromagnetic stirring coils, the device being operative to use attenuation of the magnetic field measured by the sensor on the other side of the partially solidified melt to compute the layer thickness of the partially solidified melt.
Dependencies are inferred from the claim text.