| 摘要 |
This device (10), intended for measuring the thickness of a slag (3) on the surface of a liquid metal (4) contained in an ingot mould (2), comprises: - a wire (13) made of electrically conductive material and capable of being eliminated under the effect of the heat at the temperature of the slag, the wire (13) comprising a free end (14) intended to be dipped into the slag (3), - means for feeding the wire (13), capable of displacing the wire (13) so that its free end (14) dips vertically into the slag (3) according to a predetermined trajectory, - measuring means capable of measuring a distance travelled by the free end (14) of the wire (13) during a time interval between two predetermined events when the latter is displaced under the action of the feeding means, and - means for controlling said feeding means, the control means comprising detection means, capable of detecting contact between the free end (14) and the surface of the liquid metal (4). |
