Heraeus Electro-nite International N.v.

Jacques Plessers

Francis Dams

Paul Clement Verstreken

Erik Jan Gerits

Jos Swennen

Marc Schyns

Vittorino Tusset

William Biesmans

A device is provided for measuring the gas content in a molten metal, the device including an immersion end having a gas-collecting body, a gas supply line opening on the immersion end, and a gas discharge line for the gases passing through the gas-collecting body. The gas-collecting body contains materials, which in contact with the molten metal do not form liquid reaction products.

Device for measuring the gas content in a molten metal

A device is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device.

Device for measuring cooling/heating curves of molten masses

A carrier tube is provided for sensors for taking measurements in metal or cryolite melts, especially in cast iron, steel, or copper melts. The carrier tube is formed from a mixture of a plant fiber material with starch and/or protein.

Carrier tube for sensors

A carrier tube is provided for sensors or samplers for use in metal or cryolite melts. The carrier tube has on its exterior surface longitudinal grooves and/or planar surfaces extending in the longitudinal direction of the tube.

Carrier tube for sensors or samplers

A method is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device. In addition, a corresponding device is provided for the measuring method.

Method for measuring cooling/heating curves of molten masses

A method and device are provided for analysis of a molten material using optical emission spectrometry. The molten material may be, for example, a molten metal, such as casting iron or steel, or slag, glass, or lava. A sensitive element is used having at least one emission spectrometer and at least one excitation device to effect the excitation of the molten material and to enable the partial or complete generation of a radiation to be analyzed by a spectrometer present in the sensitive element. The sensitive element is brought into contact with the molten material and transmits information, which contains analysis elements supplied by the spectrometer. An immersion sensor is also provided for carrying at least part of the device for performing the analysis method.

Growing community of inventors

Houthalen-Helchteren, Belgium

Jacques Plessers