| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 075100120 | Controlling process through sensed condition | 7 |
| 20100251854 | SEMI-LIQUID METAL PROCESSING AND SENSING DEVICE AND METHOD OF USING SAME - A semi-liquid metal processing and sensing device comprising a crucible that is at least partially encircled by at least one induction coil. The one or more induction coils can be water cooled. The one or more induction coils can be designed to generate a variable power and/or variable frequency magnetic field which can be modulated to control the cooling of a molten metal charge in the crucible from the liquidus temperature to a selected heat content, resistivity and/or viscosity. The magnetic field can be designed to induce toroidal agitation of the metal charge in the crucible. The semi-liquid condition is sensed and can be actively controlled by the induction power supply via real time or non-real time analysis of electrical feedback signals that are obtained from the induction coil. | 10-07-2010 |
| 20110146447 | Method for Controlling Foamed Slag in a Stainless Melt in an Electronic Arc Furnace - A method for controlling foamed slag in a stainless melt in an electric arc furnace. Slag level in the electric arc furnace is continuously detected thermographically as a function of time and slag level, and an addition of foaming material is controlled depending on the temperature and temperature gradient. | 06-23-2011 |
| 20120152057 | ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING THE ELECTRIC ARC MELTING FACILITY - An electric arc melting facility includes a melting chamber configured to melt a source iron therein by electric arc discharge generated from an electrode, and a source iron feeder configured to continuously feed the source iron to the melting chamber. The facility further includes a state change detector configured to detect a state change of the melting chamber when the electric arc discharge is generated from the electrode, and a controller configured to adjust a feed rate at which the source iron feeder feeds the source iron to the melting chamber, based on a detection result of the state change detectors. | 06-21-2012 |
| 20120227542 | SEMI-LIQUID METAL PROCESSING AND SENSING DEVICE AND METHOD OF USING SAME - A semi-liquid metal processing and sensing device comprising a crucible that is at least partially encircled by at least one induction coil. The one or more induction coils can be water cooled. The one or more induction coils can be designed to generate a variable power and/or variable frequency magnetic field which can be modulated to control the cooling of a molten metal charge in the crucible from the liquidus temperature to a selected heat content, resistivity and/or viscosity. The magnetic field can be designed to induce toroidal agitation of the metal charge in the crucible. The semi-liquid condition is sensed and can be actively controlled by the induction power supply via real time or non-real time analysis of electrical feedback signals that are obtained from the induction coil. | 09-13-2012 |
| 20130000445 | METHOD OF SETTING A SLAG CONSISTENCY AND APPARATUS FOR CARRYING OUT THE METHOD - In a method and an apparatus for setting a slag consistency in an electric arc furnace, structure-borne sound measurements are carried out on the electric arc furnace during the melting | 01-03-2013 |
| 20140130636 | Method And A Control System For Controlling A Melting Process - A method of controlling a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The method includes the steps of receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A control system is also presented herein. | 05-15-2014 |
| 20150330708 | FURNACE CONTROL FOR MANUFACTURING STEEL USING SLAG HEIGHT MEASUREMENT AND OFF-GAS ANALYSIS SYSTEMS - Embodiments of the invention comprise measuring the slag height level using a slag height level measurement system, as well as analyzing the off-gas components in a furnace using an off-gas analysis system in order to more efficiently control the furnace during a steelmaking process. The slag height level measurement system and the off-gas analysis system may be utilized to determine when the scrap steel has melted, when the slag height level has decreased, and if the slag height level has decreased due to deficient carbon and/or oxygen, or excess carbon and/or oxygen in the furnace. | 11-19-2015 |
