| HERAEUS ELECTRO-NITE INTERNATIONAL N.V. Patent applications |
| Patent application number | Title | Published |
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| 20120090376 | DEVICE FOR COLLECTING GASES IN MOLTEN METAL AND MEASUREMENT METHOD - A device is provided for collection of gases in molten metals, the device having an immersion end with a gas collection body, a gas supply line opening at the immersion end, and a gas discharge line for gases penetrating the gas collection body. The gas collection body is impermeable to molten metal and has an end face arranged on the immersion end and side walls of the collection body. At least a portion of the gas collection body has a gas impermeable layer arranged on a surface of the side walls of the gas collection body. A measurement method is also provided using the device. | 04-19-2012 |
| 20120082183 | DROP-IN PROBE - A drop-in probe is provided for determining phase changes of a sample removed from a molten steel by thermal analysis. The probe includes a measurement head that has an immersion end and in which is arranged a sample chamber having an inlet opening and a thermocouple projecting with its hot solder joint into the sample chamber and having a cable bushing for signal cables of the thermocouple. The cable bushing emerges from the measurement head out of a discharge opening on an end of the measurement head opposite the immersion end. A straight line between the immersion end and the discharge opening forms a longitudinal axis of the measurement head, and a theoretical plane through the hot solder joint and through a part of the inlet opening farthest away from the immersion end is formed perpendicular to the longitudinal axis. The probe is characterized by either a) the measurement head has a density of at least 7 g/cm | 04-05-2012 |
| 20120055958 | BOTTOM POURING NOZZLE FOR USE IN A CONTAINER FOR METAL MELTS - A pouring nozzle is provided for use in a container for metal melts. The pouring nozzle has an inner wall surrounding a through-flow opening for metal melts and an outer housing. During operation of the pouring nozzle a pressure of at maximum 500 mbar exists between the inner wall and the outer housing. | 03-08-2012 |
| 20110308319 | Measuring probes for measuring and taking samples with a metal melt - A measuring probe is provided for measuring and taking samples in a metal melt. The probe has a measuring head arranged on a lance, wherein the measuring head carries at least a temperature sensor and a sampling chamber, and wherein the sampling chamber is surrounded, at least partially, by the measuring head and includes an intake duct that extends through the measuring head. The intake duct includes an inner section, which extends in the measuring head and has a length L and a minimum diameter D at least at one site in the inner section. The ratio L/D | 12-22-2011 |
| 20110280278 | Sensor Arrangement for Temperature Measurement and Method for Measurement - A sensor arrangement is provided for temperature measurement in melts, in particular in metal or cryolite melts having a melting point above 600° C., using a temperature sensor. A method for the measurement with this sensor arrangement is also provided. | 11-17-2011 |
| 20110247458 | Method for Influencing the Properties of Cast Iron - A method is provided for influencing the properties of cast iron by adding magnesium to the cast iron melt and measuring the oxygen content of the cast iron melt. Magnesium is added to the cast iron melt until the oxygen content of the cast iron melt is approximately 0.005 to 0.2 ppm at a temperature of approximately 1,420° C. A sensor for measuring the oxygen content in cast iron melts contains an electrochemical measuring cell containing a solid electrolyte tube. | 10-13-2011 |
| 20110192324 | DEVICE FOR USE AT TEMPERATURES ABOVE 1000.degree.C OR IN MOLTEN STEEL - A device is provided for use at temperatures above 1000° C. or in steel melts. The device has a body based on a material selected from at least one of high temperature-resistant hollow balls and high temperature-resistant hollow fibers. The body further contains water glass and a cement. | 08-11-2011 |
| 20110094920 | CONTAINER FOR MOLTEN METAL - A container for molten metal includes an outlet for outflow of the molten metal from the container and a temperature measuring device fixed in a wall of the container. The temperature measuring device includes a plug, an outer protective sheath having a closed end, and an inner protective tube having a closed end. The inner protective tube is arranged within the outer protective sheath. A thermocouple is arranged within the inner protective tube. The plug includes a substantially refractory material and the outer protective sheath consists essentially of substantially refractory metal oxide and graphite. The outer protective sheath extends away from the first end of the plug and projects into a recessed portion of the wall of the container. The closed end of the outer protective sheath is arranged in the recessed portion. A junction of the thermocouple is proximate to the closed end of the inner protective tube. | 04-28-2011 |
| 20110083958 | MEASURING DEVICE - A measuring device is provided having a protective cover and a sensor arranged in the protective cover. The protective cover has a carrier tube made of metal and closed on one end. A first coating made of an aluminum non-wettable material is arranged on an outer surface of the carrier tube, and a further coating made of aluminum-wettable material is applied on the first coating. | 04-14-2011 |
| 20100207306 | TEMPERATURE MEASURING DEVICE - A temperature measuring device for molten metal includes a porous plug with a first end and an opposed second end, an outer protective sheath with a closed end, an inner protective tube with a closed end, and a thermocouple arranged within an interior of the inner protective tube. The outer protective sheath extends away from the first end of the plug and the inner protective tube is arranged within an interior of the outer protective sheath. The porous plug comprises a substantially refractory material and the outer protective sheath consists essentially of substantially refractory metal oxide and graphite. A junction of the thermocouple is proximate to the closed end of the inner protective tube. | 08-19-2010 |
| 20100147904 | REGULATION METHOD FOR MELT THROUGHFLOW THROUGH A MELT THROUGHFLOW APERTURE - A method for regulating metal melt throughflow through a melt throughflow aperture in a bottom nozzle of a metallurgical vessel is provided. The bottom nozzle has an upper nozzle arranged in a floor of the metallurgical vessel and a lower nozzle arranged below the upper nozzle. The method includes introducing inert gas through at least one inert gas inlet aperture into the melt throughflow aperture in the bottom nozzle, arranging a temperature sensor on or in the lower nozzle for determining a temperature in a wall of the bottom nozzle, and regulating an inert gas supply into the bottom nozzle using measurement signals from the sensor. A decrease in the temperature signals an increase of metal clogging and an increase in the temperature signals a decrease of metal clogging. | 06-17-2010 |
| 20100122590 | DEVICE FOR SAMPLING METAL MELTS - A device is provided for sampling metal melts, in particular molten iron and molten cast iron, with a sample chamber having an inlet opening and tellurium arranged in the sample chamber. The sample chamber contains 0.01 to 0.05 g/cm | 05-20-2010 |
| 20100046578 | Device for Measuring Temperature in Molten Metals - A device is provided for temperature measurement in metal melts, particularly in iron or steel melts, having a thermoelement, which is arranged in a thermoelement tube, and having an exterior protective body, which is essentially formed of graphite and metal oxide. The thermoelement tube is arranged in the protective body with a spacing, forming an intermediate space, and an insulating material and an oxygen-reducing material are arranged in the intermediate space. The insulating material and the oxygen-reducing material, as a powder mixture, form a tube ( | 02-25-2010 |
| 20100037730 | High Dimensional Cored Wires Containing Oxygen Removers and a Process for Making the Same - A high dimensional cored wire is provided containing de-oxidant material arranged in a core of the wire, the de-oxidant material being in finely divided granular or powdery form coated with a protective coating material, the diameter of the the cored wire varying between 13 and 40 mm. A process for manufacturing the wire is also provided. | 02-18-2010 |
| 20100020845 | TEMPERATURE MEASURING METHOD IN MOLTEN METAL BATH - A method is provided for measuring a parameter of a molten metal bath by an optical fiber surrounded by a cover. The optical fiber is immersed in the molten bath, and the radiation absorbed by the optical fiber in the molten bath is fed to a detector, wherein the optical fiber is heated when immersed in the molten bath. The heating curve of the optical fiber has at least one point P(t | 01-28-2010 |
| 20100018348 | Method for Influencing the Properties of Cast Iron, and Oxygen Sensor - A method is provided for influencing the properties of cast iron by adding magnesium to the cast iron melt and measuring the oxygen content of the cast iron melt. Magnesium is added to the cast iron melt until the oxygen content of the cast iron melt is approximately 0.005 to 0.2 ppm at a temperature of approximately 1,420° C. A sensor for measuring the oxygen content in cast iron melts contains an electrochemical measuring cell containing a solid electrolyte tube. | 01-28-2010 |
| 20090230597 | Lance for Receiving Sensor or Sampler for Metal Melts - A lance for receiving a sensor or sampler for metal melts has a top part and a bottom part provided for arrangement on the sensor or sampler. The top part and the bottom part are detachably connected to each other by a plug-in coupling, wherein the plug-in coupling has two coupling parts that can be inserted one in the other. Of these coupling parts, one coupling part is arranged on the top part and the other coupling part is arranged on the bottom part of the lance, and the two coupling parts are inserted one in the other in the longitudinal direction of the lance. One of the two coupling parts has, on its open connection end, an opening or groove that extends from the front face of the coupling part in the longitudinal direction of the lance and has, spaced from the front face, an extension formed in the peripheral direction of the coupling part. On the other coupling part a raised portion is formed that engages in the extension. A blocking device, which can move in the longitudinal direction of the lance, is arranged on the top part or bottom part of the lance, such that a catch element of the blocking device is arranged at least partially between at least one part of the raised portion and at least one part of the opening or groove extending in the longitudinal direction of the lance. | 09-17-2009 |
| 20090107537 | Thermocouple Extension Wire - A thermocouple system is disclosed. The thermocouple system includes a thermocouple having a positive lead and a negative lead. A positive wire is connected at a first end to the positive lead at a first junction and at a second end to a second junction. A negative wire is connected at a first end to the negative lead at a third junction and at second end to a fourth junction. The second and fourth junctions constitute a reference junction. At least one of a thermal conductivity and a gauge of at least one of the positive wire and the negative wire are selected to govern the respective flows of heat from the first junction toward the reference junction and the flow of heat from the third junction toward the reference junction to be of such quantities that the difference in the heat flows is less than a predetermined amount. | 04-30-2009 |
| 20090020253 | Device for Use at Temperatures Above 1000°C or in Molten Steel and Use of the Device - A device is provided for use at temperatures above 1000° C. or in steel melts. The device has a body based on sand, high temperature-resistant hollow balls and/or high temperature-resistant hollow fibers and contains water glass and a cement. | 01-22-2009 |
| 20090013757 | Device for Collecting Gases in Molten Metal and Measurement Method - A device is provided for collection of gases in molten metals, the device having an immersion end with a gas collection body, a gas supply line opening at the immersion end, and a gas discharge line for gases penetrating the gas collection body. The gas collection body has an end face arranged on the immersion end and side walls of the collection body, and at least one part of the gas collection body has a gas impermeable layer. A measurement method is also provided using the device. | 01-15-2009 |
| 20080196476 | Device for Measuring the Gas Content in a Molten Metal - 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. | 08-21-2008 |
