With Temperature Sensor Patents (Class 266/87)
  • Patent number: 8945319
    Abstract: Provided is a manufacturing method of a hot-rolled steel sheet which enables manufacturing of a hot-rolled steel sheet having excellent surface properties and a fine structure. The manufacturing method of a hot-rolled steel sheet uses a heating device, descaling device, row of finishing mills, cooling device disposed in the row of finishing mills, and rapid cooling device disposed immediately after the row of finishing mills, and the operations of the heating device, cooling device and rapid cooling device are controlled, thereby controlling a temperature T1 of the material to be rolled on an entry side of the row of finishing mills, a temperature T2 of the material to be rolled on an entry side of a final stand in the row of finishing mills, and a temperature T3 of the material to be rolled on an exit side of the rapid cooling device.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: February 3, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Hisayoshi Tachibana, Shigemasa Nakagawa
  • Patent number: 8920024
    Abstract: The present invention provides a steel plate quality assurance system and facilities thereof, wherein the steel plate quality assurance system measures, with a steel plate manufacturing line including a finishing mill of a steel plate manufacturing line, and accelerated cooling equipment disposed on the downstream side of the finishing mill in the advancing direction of the steel plate manufacturing line, temperature of at least the whole area of the upper surface of a steel plate, or the whole area of the lower surface of a steel plate to perform quality assurance, and includes temperature measurement means; temperature analysis means; and mechanical property determining means.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 30, 2014
    Assignee: JFE Steel Corporation
    Inventors: Koji Narihara, Toshikazu Akita, Yukihiro Okada, Yutaka Wada, Kouhei Obara, Toru Takahashi
  • Publication number: 20140374970
    Abstract: The present technology provides an illustrative apparatus for recycle electric arc furnace (EAF) dust and method of use related to the same. The apparatus has a heat controlling region coupled to a separation volume and includes at least one magnet and a cooling region. The heating controlling region operates at a temperature sufficient to transform at least some of the EAF dust into a mixture of gaseous zinc and one or more additional metals. The magnet separates the iron-rich material from the mixture of gaseous zinc and one or more additional metals and the cooling region condenses the gaseous zinc.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: Empire Technology Development LLC
    Inventor: Ezekiel KRUGLICK
  • Publication number: 20140327192
    Abstract: A method for operating a blowing lance for blowing a gas in a metallurgical vessel, wherein the head of the blowing lance includes at least one supersonic nozzle, operating parameter measurement signals used for the purpose of process control are continuously acquired. The inlet pressure and/or the inlet temperature of the gas at the supersonic nozzle and/or the vibration amplitude and/or the vibration frequency of the blowing lance and/or the time at which ignition occurs during the oxygen blowing process and/or the location at which ignition occurs during the oxygen blowing process is detected and/or measured in the head of the lance by a detector or sensor arranged in the head of the lance near the supersonic nozzle during operation of the blowing lance. The measurement signal(s) are transmitted to a control unit connected to the detector or sensor and made available for controlling the operation of the blowing lance.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 6, 2014
    Applicant: SMS Siemag Aktiengesellschaft
    Inventors: Pavlo GRYGOROV, Hans-Jürgen ODENTHAL, Jochen SCHLÜTER, Norbert UEBBER
  • Publication number: 20140305261
    Abstract: A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 16, 2014
    Inventors: Michael Lundh, Xiaojing Zhang, Jan-Erik Eriksson, Lidong Teng, Carl-Fredrik Lindberg
  • Patent number: 8771586
    Abstract: An apparatus for processing material such as organically coated waste and organic materials including biomass, industrial waste, municipal solid waste and sludge, is provided. The apparatus comprises a rotatable and tiltable furnace (1) having a body portion (15), a single material entry point (11) and a tapered portion (13) between the entry point and the body. The furnace has a closure through which material can be introduced to the furnace (1) when open and in which the interior of the furnace is isolated from the external environment when closed. A director at or adjacent the entry point (11) directs gases inwardly of the furnace so as to provide a barrier of gas adjacent the opening to inhibit the entrance of oxygen containing atmospheric gas when the closure is in its open position.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: July 8, 2014
    Inventor: Fanli Meng
  • Patent number: 8764915
    Abstract: In order to provide a further uniform carburizing treatment to an article to be treated, a carburizing treatment apparatus which performs carburizing treatment by heating the article to be treated in a treatment chamber, the inside of which is under reduced pressure and in a carburizing gas atmosphere, includes a temperature measurement means for measuring temperatures in a plurality of regions inside the treatment chamber and a temperature adjustment means for individually adjusting temperatures in the plurality of regions on the basis of measurement results of the temperature measurement means so that the article to be treated is given a uniform carburizing treatment.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 1, 2014
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventor: Kazuhiko Katsumata
  • Publication number: 20140174607
    Abstract: Methods, systems, and apparatuses for retaining magnetic properties of magnetic elements while undergoing manufacturing processes are presented. In one embodiment, a manufacturing fixture includes a temperature controlled region suitable for retaining a magnetic element. The manufacturing fixture also includes a cooling mechanism configured to maintain the magnetic element at an acceptable temperature range during a thermally active manufacturing process. The temperature controlled or stabilized region can include a structure configured to receive the magnetic element and a sensor, or sensors. In one embodiment, the sensor can be configured to measure an ambient temperature of the temperature stabilized region. In another embodiment, the sensor can be a magnetic sensor configured to determine a magnetic property of the magnetic element.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 26, 2014
    Applicant: Apple Inc.
    Inventors: Douglas Joseph Weber, Julio C. Quintero, Benjamin M. Rappoport, Harry W. Smith, IV
  • Publication number: 20140131930
    Abstract: A cooling chamber is provided which cools workpieces that have been heated. Cooling units are provided in the cooling chamber, and respectively include: a conveyor which simultaneously and uniserially conveys a plurality of workpieces; a mist cooling device which is disposed so as to surround the conveyance path of the conveyor and which supplies mist-like cooling liquid; and a gas cooling device which is disposed so as to surround the conveyance path of the conveyor and which supplies cooling gas.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Inventor: Kazuhiko Katsumata
  • Patent number: 8652395
    Abstract: The present invention proposes a method for feeding pulverised coal into a blast furnace, wherein the method comprises the following steps: providing a tuyere stock (14) for blowing hot blast air from a bustle pipe (12) into a furnace hearth of a blast furnace through a tuyere (15) in an opening in the furnace wall (16); providing a pulverised coal injection lance (18) for feeding pulverised coal into the tuyere (15), the pulverised coal injection lance (18) comprising an inner pipe (20) for conveying pulverised coal and an outer pipe (22), coaxially arranged around the inner pipe (20), for conveying combustive gas, the inner pipe (20) forming a separation wall for separating the pulverised coal from the combustive gas, the pulverised coal injection lance (18) having a lance tip (24) arranged in the tuyere (15); allowing the pulverised coal and the combustive gas to form a mixture of pulverised coal and combustive gas at the lance tip (24); burning the mixture of pulverised coal and combustive gas in the tuye
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: February 18, 2014
    Assignee: Paul Wurth S.A.
    Inventors: Paul Goedert, Christian Lunkes, Pol Lemmer
  • Publication number: 20130307202
    Abstract: The present invention relates to a method of heating a non-ferrous and/or ferrous metal-containing stock in a furnace with a heating chamber, a charging door, an exhaust stream port and an exhaust stream duct, which comprises a) introducing fuel and an oxygen-containing gas into the heating chamber of the furnace through a burner so that a flame is formed, b) monitoring the signal of at least one optical sensor installed within the heating chamber and/or the exhaust stream duct, c) monitoring the change of the temperature T of the exhaust stream with time (dT/dt), and d) adjusting the fuel:oxygen ratio in step a) as a function of the signal of the flame sensor(s) and dT/dt in the exhaust stream, and, to an apparatus designed for implementing said method.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 21, 2013
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Thomas Jurgen Hegenberg, Linda Kuhne, Gregor Langemeyer, Siegfried Schemberg
  • Publication number: 20130277896
    Abstract: The invention pertains to the heating of a metal strip, and relates to equipment for heating a metal strip that comprises a pre-heating housing provided with a device for projecting hot gases towards the strip, a heating housing with regenerative burners, a duct for discharging the gases from the heating housing, a three-way adjustable valve and an adjustment device including a sensor for detecting the setpoint temperature of the metal strip and a member for adjusting the three-way valve so that it can adjust the amount of hot gases fed to the projection device. The invention can be used in equipment for heating narrow strips before annealing the same.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 24, 2013
    Inventors: Philippe BUCHET, Nicolas Richard, Pierre-Jacques Lhomme
  • Patent number: 8480948
    Abstract: An apparatus and method for processing iron sinter is provided. A cooling system is arranged downstream of a furnace for cooling the iron sinter. The cooling system includes a convective cooling system for forcing air into the iron sinter and an evaporative cooling system for directing fluid into the hot sinter.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 9, 2013
    Assignee: Spraying Systems Co.
    Inventors: Edson Rocha, Marcos Torres
  • Publication number: 20130000792
    Abstract: A heat treatment method according to the present invention includes a preliminary-state-generating step of heat-treating an alloy that undergoes multiple-step transformation with temperature by bringing the alloy in contact with a contact-type heating element for 0.01 sec or more and 3.0 sec or less, the contact-type heating element being adjusted to a particular temperature within a preliminary-state-generating temperature region determined on the basis of a first temperature related to a particular first transformation of the alloy and a second temperature, which is higher than the first temperature, related to a particular second transformation of the alloy so as to generate a preliminary state in the alloy.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicants: Yokohama National University, NGK Insulators, Ltd.
    Inventors: Mahoto TAKEDA, Naokuni Muramatsu, Ryota Takeuchi
  • Publication number: 20120318414
    Abstract: Provided is a manufacturing method of a hot-rolled steel sheet which enables manufacturing of a hot-rolled steel sheet having excellent surface properties and a fine structure. The manufacturing method of a hot-rolled steel sheet uses a heating device, descaling device, row of finishing mills, cooling device disposed in the row of finishing mills, and rapid cooling device disposed immediately after the row of finishing mills, and the operations of the heating device, cooling device and rapid cooling device are controlled, thereby controlling a temperature T1 of the material to be rolled on an entry side of the row of finishing mills, a temperature T2 of the material to be rolled on an entry side of a final stand in the row of finishing mills, and a temperature T3 of the material to be rolled on an exit side of the rapid cooling device.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 20, 2012
    Applicant: SUMITOMO METAL INDUSTRIES, LTD.
    Inventors: Hisayoshi TACHIBANA, Shigemasa NAKAGAWA
  • Publication number: 20120227542
    Abstract: 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.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 13, 2012
    Inventor: ALAN A. KOCH
  • Patent number: 8262983
    Abstract: A tilting rotary furnace with a door assembly that seals against a furnace vessel. The seal between the door and the furnace vessel allows for regulation of the internal environment of the furnace and control over thermitting of the aluminum. As a result, aluminum recovery may be carried out without the use of salt. A portion of the door may rotate with the furnace vessel and a portion of the door may remain rotationally stationary with respect to the furnace vessel and the rotating portion of the door.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: September 11, 2012
    Assignee: Altek, L.L.C.
    Inventor: Erik D. Grimm
  • Publication number: 20120211191
    Abstract: A furnace for heat treating a metal workpiece is provided. A method and system for processing a workpiece also are provided.
    Type: Application
    Filed: May 2, 2012
    Publication date: August 23, 2012
    Inventors: Scott P. Crafton, Paul M. Crafton, Ian French, Shanker Subramanian
  • Patent number: 8088194
    Abstract: Provided is a method for producing hot briquette iron by hot-forming high-temperature reduced iron reduced in a reducing furnace, involving cooling the high-temperature reduced iron and controlling the temperature of the reduced iron to an appropriate hot-forming temperature of over 600° C. and 750° C. or less, producing hot briquette iron by hot-forming the high-temperature reduced iron at an appropriate hot-forming temperature with a briquetting machine.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: January 3, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Hirofumi Tsutsumi, Yutaka Miyakawa
  • Patent number: 8052919
    Abstract: To provide a heat treatment providing a product with quality as desired, high frequency induction heating treatment equipment capable of temperature control to provide such heat treatment includes temperature controlling means for adjusting in temperature an object to be treated, and quenching means for determining when the object heated should be cooled. The temperature controlling means includes heating means, temperature measuring means involved in temperature control, and temperature adjusting means. The quenching means includes temperature measuring means involved in quenching, and heat treatment adjusting means.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: November 8, 2011
    Assignee: NTN Corporation
    Inventors: Takumi Fujita, Nobuyuki Suzuki
  • Patent number: 7982165
    Abstract: A system for heat treating a metal product has an annealing zone having a first preselected atmosphere condition, a cooling zone having a second preselected atmosphere condition different than the first preselected atmosphere condition, and a blueing zone having a third preselected atmosphere condition different than the first and second preselected atmosphere conditions. A graphical user interface allows an operator select one of the zones for displaying processing information pertaining to the selected zone. The processing information includes a computed ratio of gaseous hydrogen H2 (g) to water vapor H2O (g) for the respective preselected atmosphere condition. The graphical user interface allows an operator to control the respective preselected atmosphere based, at least in part, upon the computed ratio.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: July 19, 2011
    Assignee: Furnace Control Corp.
    Inventors: Robert N. Blumenthal, Andreas T. Melville
  • Patent number: 7968044
    Abstract: An apparatus and method for processing iron sinter is provided. A cooling system is arranged downstream of a furnace for cooling the iron sinter. The cooling system includes a convective cooling system for forcing air into the iron sinter and an evaporative cooling system for directing fluid into the hot sinter.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: June 28, 2011
    Assignee: Spraying Systems Co.
    Inventors: Edson Rocha, Marcos Torres
  • Publication number: 20110109021
    Abstract: A grate-kiln pelletizing furnace includes a grate that conveys pelletized material to a rotary kiln, a cooler that cools pelletized material from the rotary kiln, and a gas flow apparatus that directs a stream of gas from the cooler to the rotary kiln to provide preheated process air for pelletized material in the rotary kiln. The gas flow apparatus also directs a stream of gas from the grate to the rotary kiln to vitiate the preheated process air.
    Type: Application
    Filed: March 26, 2010
    Publication date: May 12, 2011
    Inventor: Bruce E. Cain
  • Publication number: 20110068519
    Abstract: The present invention relates to an apparatus for a press hardening die which has a structure improved to decrease cooling rate of trimming portions in pressing a steel plate blank for manufacturing a part for press hardening. A press hardening die cooling device according to an embodiment of the present invention includes: a press hardening die composed of upper and lower dies equipped with cooling water suppliers therein to press a steel plate blank from the top and the bottom; and a cooling water temperature adjuster disposed between the cooling water suppliers of the upper and lower dies and the contact surface of the steel plate blank to adjust temperature of cooling water supplied to the steel plate blank.
    Type: Application
    Filed: November 29, 2010
    Publication date: March 24, 2011
    Applicant: HYUNDAI STEEL COMPANY
    Inventors: Soonyong Kwon, Seungtaek Hong
  • Publication number: 20100224028
    Abstract: The present invention provides a method capable of producing good hot-briquette iron using high-temperature reduced iron discharged at a high temperature from a reducing furnace such as a rotary hearth furnace. The method includes a temperature control step of cooling the high-temperature reduced iron and controlling the temperature of the reduced iron to an appropriate hot-forming temperature of over 600° C. and 750° C. or less, and a step of producing hot briquette iron by hot-forming the high-temperature reduced iron of the appropriate hot-forming temperature with a briquetting machine.
    Type: Application
    Filed: September 5, 2008
    Publication date: September 9, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hirofumi Tsutsumi, Yutaka Miyakawa
  • Patent number: 7785528
    Abstract: A guide system for signal lines includes a guide tube, through which the signal lines are guided, a cooling system which laterally surrounds the guide tube and has at least one coolant chamber and at least one inlet and at least one outlet for the coolant. The coolant chamber is tubular in construction and is hermetically sealed by a seal at least at one end face.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: August 31, 2010
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Robert Charles Whitaker, Andrew David Butler
  • Publication number: 20100031776
    Abstract: A hearth furnace 10 for producing metallic iron material has a furnace housing 11 with a drying/preheat zone 12 capable of providing a drying/preheat atmosphere for reducible material, a conversion zone 13 capable of providing a reducing atmosphere for reducible material, a fusion zone 14 capable of providing an atmosphere to at least partially reduced metallic iron material, and optionally a cooling zone 15 capable of providing a cooling atmosphere for reduced material containing metallic iron material. A hearth 20 is movable within the furnace housing 11 in a direction through the drying/preheat zone 12, then the conversion zone 13, then the fusion zone 14, and then the cooling zone 15.
    Type: Application
    Filed: October 4, 2007
    Publication date: February 11, 2010
    Applicant: NU-IRON TECHNOLOGY, LLC
    Inventors: David Englund, Rodney Bleifuss, Iwao Iwasaki, Donald Fosnacht, Mark Brandon, Bradford True
  • Publication number: 20090308562
    Abstract: An apparatus and method for melting metal and casting molds. The apparatus includes a rollover melt furnace having a crucible and a mold. The apparatus also includes an electrical servomotor that drives rotation of the crucible about an axis of rotation. This rotation of the crucible causes molten metal to flow from a pour opening in the crucible into a fill opening in the mold. The apparatus may further include a controller to carry out a pouring process in compliance with a pour profile and a melting process in compliance with a melt profile.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 17, 2009
    Applicant: ZIMMER, INC.
    Inventors: Brad L. Rauguth, James Rackley, Steven Allen
  • Publication number: 20090301612
    Abstract: An induction heat treatment method with which temperature control is enabled, condition setting is easy, and the quality of a treatment object can be stabilized includes: a data acquiring step of heating and quench-hardening a sample of the treatment object to thereby acquire process data; a storing step of storing the process data; a checking step of checking the power supply output transition data and the quenching timing data as to validity based on the temperature transition data stored in the storing step; and a mass production step of performing heat treatment of the treatment object in accordance with the power supply output transition data and the quenching timing data stored in the storing step and checked as to validity in the checking step.
    Type: Application
    Filed: August 18, 2009
    Publication date: December 10, 2009
    Applicant: NTN Corporation
    Inventors: Takumi FUJITA, Nobuyuki Suzuki
  • Patent number: 7616872
    Abstract: Temperature measurement and heat-treating methods and systems. One method includes identifying a temperature of a first surface of a workpiece, and controlling energy of an irradiance flash incident on the first surface of the workpiece, in response to the temperature of the first surface. Identifying may include identifying the temperature of the first surface during an initial portion of the irradiance flash, and controlling may include controlling the power of a remaining portion of the irradiance flash. The first surface of the workpiece may include a device side of a semiconductor wafer.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 10, 2009
    Assignee: Mattson Technology Canada, Inc.
    Inventors: David M. Camm, Shawna Kervin, Marcel Edmond Lefrancois, Greg Stuart
  • Publication number: 20090266200
    Abstract: In a method for reducing metal-oxidic slags or glasses and/or degassing mineral melts, solid particles and/or melts are charged onto an at least partially inductively heated bed or column containing lumpy coke, and the reduced and/or degassed melt running off is collected. The device for reducing metal-oxidic slags or glasses and/or degassing mineral melts, which includes a charging opening (1) for solid or molten material and a tap opening (12) for the treated melt, is characterized by a tubular or channel-shaped housing (3) for the reception of lumpy coke (6), and a heating means surrounding the housing and including at least one induction coil (7, 8, 9).
    Type: Application
    Filed: January 19, 2006
    Publication date: October 29, 2009
    Inventor: Alfred Edlinger
  • Publication number: 20090206527
    Abstract: A furnace for heat treating a metal workpiece is provided. A method and system for processing a workpiece also are provided.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 20, 2009
    Inventors: Scott P. Crafton, Paul M. Crafton, Ian French, Shanker Subramanian
  • Patent number: 7566413
    Abstract: A method for protecting a tuyere assembly and a refractory lining of a furnace, and in particular a blast furnace, against damage caused by expansion of the refractory lining. This method includes providing a clearance between the tuyere assembly and a refractory lining portion below the tuyere assembly and monitoring this clearance by means of a displacement sensor.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: July 28, 2009
    Assignee: Paul Wurth S.A.
    Inventors: Jacques Piret, Nicolas Mousel, Roland Dhondt, Emile Breden
  • Publication number: 20090185947
    Abstract: A controlled combustion synthesis apparatus comprises an ignition system, a pressure sensor for detecting internal pressure, a nitrogen supply, a gas pressure control valve for feeding nitrogen and exhausting reaction gas, means for detecting the internal temperature of the reaction container, a water cooled jacket, and a cooling plate. A temperature control system controls the temperature of the reaction container by controlling the flow of cooling water supplied to the jacket and the cooling plate in response to the detected temperature. By combustion synthesizing, while controlling the internal pressure and temperature, the apparatus can synthesize a silicon alloy including 30-70 wt. % silicon, 10-45 wt. % nitrogen, 1-40 wt. % aluminum, and 1-40 wt % oxygen.
    Type: Application
    Filed: March 19, 2009
    Publication date: July 23, 2009
    Applicant: ISMAN J CORPORATION
    Inventors: Toshiyuki Watanabe, Masafumi Matsushita, Toshitaka Sakurai, Kazuya Sato, Yoko Matsushita
  • Publication number: 20080264206
    Abstract: An apparatus and method for processing iron sinter is provided. A cooling system is arranged downstream of a furnace for cooling the iron sinter. The cooling system includes a convective cooling system for forcing air into the iron sinter and an evaporative cooling system for directing fluid into the hot sinter.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 30, 2008
    Applicant: Spraying Systems Co.
    Inventors: Edson ROCHA, Marcos Torres
  • Publication number: 20080257109
    Abstract: The present invention concerns a high vacuum in-situ refining method for high-purity and superhigh-purity materials and the apparatus thereof, characterized in heating the upper part and lower part of crucible separately using double-heating-wires diffusion furnace under vacuum, thereby forming the temperature profile which is high at upper part and low at lower part of crucible, or in reverse during different stages; then heating the crucible in two steps to remove impurities with high saturation vapor pressure and low saturation vapor pressure respectively in efficiency; and obtaining high-purity materials eventually. The whole procedure is isolated from atmosphere, reducing contamination upon stuff remarkably. The present invention could provide products with high-quality and high production capacity, which are stable in performance, therefore is reliable and free from contamination.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 23, 2008
    Inventors: Xiaolong Du, Zhaoquan Zeng, Hongtao Yuan, Handong Li, Qikun Xue, Jinfeng Jia
  • Patent number: 7435929
    Abstract: Methods for monitoring a heat treating atmosphere supply a preselected gas atmosphere at a preselected temperature to a heat treating furnace. The preselected temperature is not greater than a temperature at which wustite (FeO) forms. The methods sense the preselected gas atmosphere and the preselected temperature and compute a computed ratio of gaseous hydrogen H2 (g) to water vapor H2O (g) for the preselected atmosphere as a function of the sensed values.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: October 14, 2008
    Assignee: Furnace Control Corp.
    Inventors: Robert N. Blumenthal, Andreas T. Melville
  • Publication number: 20080237943
    Abstract: The invention relates to a an arrangement and a method for heating metal objects such as metal bars by convection. The metal objects are passed on a conveyor through a series of chambers where hot air is blown through the conveyor. The temperature is controlled by a sensor connected to a control devise such as a thyristor.
    Type: Application
    Filed: November 6, 2006
    Publication date: October 2, 2008
    Applicant: HYNELL PATENTTJANST AB
    Inventors: Kurt Dahlberg, Dan Borgstrom
  • Publication number: 20080159905
    Abstract: A controlled combustion synthesis apparatus comprises an ignition system, a pressure sensor for detecting internal pressure, a nitrogen supply, a gas pressure control valve for feeding nitrogen and exhausting reaction gas, means for detecting the internal temperature of the reaction container, a water cooled jacket, and a cooling plate. A temperature control system controls the temperature of the reaction container by controlling the flow of cooling water supplied to the jacket and the cooling plate in response to the detected temperature. By combustion synthesizing, while controlling the internal pressure and temperature, the apparatus can synthesize a silicon alloy including 30-70 wt. % silicon, 10-45 wt. % nitrogen, 1-40 wt. % aluminum, and 1-40 wt % oxygen.
    Type: Application
    Filed: April 19, 2007
    Publication date: July 3, 2008
    Applicant: ISMAN J Corporation
    Inventors: Toshiyuki Watanabe, Masafumi Matsushita, Toshitaka Sakurai, Kazuya Sato, Yoko Matsushita
  • Patent number: 7354491
    Abstract: A method and apparatus (5) for simulating and analyzing industrial thermal processes, including industrial heat-treatment, processes, melting, solidification, quenching and the like, used in the manufacture of metals, alloys and metal matrix composite components. The apparatus (5) includes an optional environmental chamber (10) used for situations where testing room conditions are too hot or too cold and would thus interfere with operation of the apparatus (5) without such chamber (10). The apparatus (5) includes a multifunctional excitation coil (40) that serves the function of the omitted environmental chamber (10). The apparatus (5) also includes one or more high frequency resonant inverters (15) and a cooling means (20). The apparatus (5) integrates melting and thermal processing capabilities with a thermal analyzer and a control system.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: April 8, 2008
    Inventors: Jerzy H. Sokolowski, Witold T. Kierkus, Marcin Stanislaw Kasprzak, Wojciech Jan Kasprzak
  • Publication number: 20080038142
    Abstract: A powder molding product may be formed by a forming portion in a mold body filled with a raw powder. Upper and lower punches are fitted into the forming portion to form the powder molding product. Prior to filling with the raw powder, aqueous solution in which water soluble lubricant having at least 3 g of solubility for 100 g of water is dissolved in water to uniform phase is applied to a mold portion. The aqueous solution is evaporated, thus forming a crystallized layer on the molding portion. The crystallized layer is formed on the peripheral surface of the molding portion for lubrication enabling the reducing of a pressure required for ejecting the powder molding product from the molding portion as well as the improving of the density of the powder molding product.
    Type: Application
    Filed: February 24, 2005
    Publication date: February 14, 2008
    Applicant: Mitsubishi Materials PMG Corporation
    Inventors: Takashi Nakai, Kinya Kawase
  • Patent number: 7310981
    Abstract: The invention relates to a method for controlling and regulating the temperature of a metal strip in a finishing train of a hot rolling mill. A target function is formed by comparing a desired temperature gradient with an actual temperature gradient. The target function measures deviations from desired indications positioned in various places on the finishing train. The speed of the strip and the flow of the cooling agent are adjusted by predicting with the aid of a method of non-linear optimization with auxiliary conditions and are regulated and controlled online by solving a quadratic optimization problem with linear auxiliary conditions, preferably with the aid of an active set strategy.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: December 25, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Matthias Kurz, Michael Metzger
  • Publication number: 20070251613
    Abstract: An experiment is conducted in advance, for finding a temperature of a cooling plate attained as a result of balancing between a temperature of a substrate after heat treatment and a temperature of the cooling plate at the time of cooling of the substrate. Then, before heat treatment of a first substrate, the cooling plate is moved to a position above a hot plate, the cooling plate is heated to that temperature, and thereafter heat treatment of the substrate is started.
    Type: Application
    Filed: April 12, 2007
    Publication date: November 1, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hikaru Ito, Shinji Okada, Masami Yamashita
  • Patent number: 7255828
    Abstract: A method and apparatus for performing electromagnetic treatment on engineering materials and products and for improving processing technologies and service characteristics of the materials. The apparatus integrates electromagnetic treatment with a thermal analyzer and a control system. The apparatus allows for precise control of the operating parameters of an electromagnetic treatment process in order to render significant improvement in the materials and products metallurgical characteristics.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 14, 2007
    Inventors: Marcin Stanislaw Kasprzak, Wojciech Kasprzak, Jerzy H. Sokolowski
  • Patent number: 7193189
    Abstract: Systems and methods for monitoring a heat treating atmosphere derive from at least one sensor placed in situ in the atmosphere a process variable, which is indicative of the ratio of gaseous hydrogen H2 (g) to water vapor H2O (g) in the atmosphere. The systems and methods use the process variable, e.g., to control the atmosphere, or to record or display the process variable.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: March 20, 2007
    Assignee: Furnace Control Corp.
    Inventors: Robert N. Blumenthal, Andreas T. Melville
  • Patent number: 7015439
    Abstract: A workpiece heating system having an induction heating power source and a controller. The controller is operable to control the operation of the power source according to programming instructions received from a user. The controller enables a user to establish a sequence of inductive heating operations to be performed automatically by the induction heating system from among a selection of inductive heating operations. A temperature feedback device may be included to provide the controller with the workpiece temperature. A data recorder may be provided to receive and record the workpiece temperature.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: March 21, 2006
    Assignee: Illinois Tool Works Inc.
    Inventors: Jeffrey R. Thomas, Randall G. Baxter, Mark A. Ulrich, Paul D. Verhagen
  • Patent number: 6964751
    Abstract: Method and device for the heat treatment of substrates, wherein the substrates are positioned in the vicinity of a heated, essentially flat furnace body extending over the surface of the substrate. In order to provide a reproducible treatment when treating a number of substrates successively, the temperature of the furnace body is measured so close to the surface adjacent to the substrate that the withdrawal of heat from the furnace body by the substrate can be detected. The introduction of each substrate takes place at a point in time when the temperature measured in this way is, within certain limits, equal to a desired initial treatment temperature Ttrig.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: November 15, 2005
    Assignee: ASM International N.V.
    Inventors: Arjen Storm, Ronald Bast, Vladimir Ivanovich Kuznetsov, Jan Zinger
  • Patent number: 6960238
    Abstract: In a process for the gas reduction of particulate oxide-containing ores, in particular iron-oxide-containing material, in the fluidized-bed process at a pressure of <5 bars, wherein the ore by aid of a reducing gas produced from coal is heated, optionally also pre-reduced, in a fluidized-bed reactor (1) designed as a pre-heating stage (5), subsequently is reduced to sponge iron in at least one fluidized-bed reactor (2, 3) designed as a reduction stage (7, 8), the reducing gas via a reducing-gas feed duct (12) or reducing-gas duct (13) being conducted from the reduction stage (7, 8) to the pre-heating stage (5) in the opposite direction of the material to be reduced and conducted from stage to stage, and being drawn off as an export gas after purification, heat is supplied to the reducing gas fed to the reduction stage (7, 8) and/or pre-heating stage (5), namely by combustion, together with oxygen and/or air, of a portion of the reducing gas provided for the gas reduction in the reduction stage (7, 8) and/o
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: November 1, 2005
    Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.
    Inventors: Leopold Werner Kepplinger, Franz Hauzenberger, Johannes Schenk, Sanghoon Joo
  • Patent number: 6955730
    Abstract: The method and apparatus for enhancing the metallurgical quality of products treated in a furnace with several zones, wherein the temperature and the atmospheric conditions can be controlled. The applies to any type of product treated in a furnace, such as billets, blooms, slugs or slabs. Alternatively, this may be used by iron and steel manufacturers in the production line for sheets, plates, tubes, etc.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: October 18, 2005
    Assignee: L'Air Liquide, Société Anonyme á Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Savine Bockel-Macal, Olivier Delabroy, Olivier Louedin, Christel Champinot
  • Patent number: 6866729
    Abstract: A method and device for the automation of a cooling section in a hot strip rolling mill, wherein an individual course of cooling over time for each strip point of the metal strip is specified and whereby the cooling specifications can be determined from the desired properties of the steel, independent of variable process value.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: March 15, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Otto Gramckow, Rolf-Martin Rein, Klaus Weinzierl