Patents Assigned to Heraeus Electro-Nite International N.V.
  • Patent number: 10514302
    Abstract: A method for feeding a cored wire into molten metal contained in a vessel comprises positioning the cored wire at a first position wherein a leading tip of the cored wire is proximate an entry point of the vessel, the entry point being above a surface of the molten metal, the cored wire comprising an optical fiber and a cover laterally surrounding the optical fiber; feeding the cored wire at a first speed for a first duration from the first position to a second position wherein the leading tip of the cored wire is immersed within the molten metal and lies within a measuring plane, such that a leading tip of the optical fiber projects from the cover and is exposed to the molten metal; and subsequently feeding the cored wire at a second speed for a second duration to take a first measurement of the molten metal.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: December 24, 2019
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Dominique Feytongs, Jack Childs
  • Patent number: 10495551
    Abstract: A sampler for taking samples from a molten metal bath, particularly a molten iron includes a sample chamber assembly having a cover plate and a housing. The housing has first and second openings for an inflow conduit and a gas coupler, respectively. The first face has an analysis zone, a ventilation zone, and a distribution zone. A depth of the analysis zone is 0.5 mm to 1.5 mm. The cover plate and the housing are assembled together to form a sample cavity. The sample chamber assembly chills the molten iron received therein to a solidified white structure metal sample. An analysis surface of the sample lies in a first plane. In a flow direction of the molten iron, there are no increases in width of the sample cavity and a ratio of the length to depth of the sample cavity increases.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 3, 2019
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventors: Dries Beyens, Jean-Paul Verhoeven
  • Patent number: 10488304
    Abstract: A sample chamber assembly for molten metal comprises a cover plate and a housing. A first face of the housing has a depression in direct flow communication with a first opening formed at the immersion end of the housing. The cover plate and the housing are assembled together along a first plane to form a sample cavity including the depression. An analysis surface of a solidified metal sample lies in the first plane. The sample cavity and the first opening are aligned along a common longitudinal axis. The first opening is spaced apart from the first plane. A ratio of the thermal diffusivities of the solidified metal sample and the housing material is between 0.1 and 0.5. The housing is inseparable from the solidified metal sample. A portion of the housing is directly adjacent to the solidified metal sample and lies in the first plane.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 26, 2019
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventor: Dries Beyens
  • Patent number: 10466145
    Abstract: A sampler for taking samples from a molten metal bath, particularly a molten steel bath, includes a sample chamber assembly having a cover plate and a housing. The housing has first and second openings for an inflow conduit and a gas coupler, respectively. The first face of the housing includes a distribution zone, an analysis zone and a ventilation zone. A depth of the analysis zone is greater than 1.5 mm and less than 3 mm. The cover plate and the housing assemble together to form a sample cavity. An analysis surface of a solidified steel sample formed within the sample cavity lies in a first plane. In a flow direction of the molten steel, there are no increases in a width dimension of the sample cavity and a ratio of the length to depth of the sample cavity increases.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 5, 2019
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventor: Dries Beyens
  • Patent number: 10416074
    Abstract: A calibration method for a spectrometer and a reference material which facilitates calibration of the spectrometer are provided. The reference material has a homogeneous content of elements protected by an inert coating.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 17, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventor: Luc Lammerant
  • Patent number: 10378824
    Abstract: A device for measuring the temperature of a melt, particularly of a molten metal, includes an optical fiber and a guiding tube having an immersion end and a second end opposite to the immersion end. The optical fiber is partially arranged in the guiding tube. An inner diameter of the guiding tube is larger than an outer diameter of the optical fiber. A first plug is arranged at the immersion end of or within the guiding tube proximate the immersion end of the guiding tube. The optical fiber is fed through the first plug and the first plug reduces a gap between the optical fiber and the guiding tube.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 13, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Jacobus Neyens, Michel Thys, Frank Stevens
  • Patent number: 10359343
    Abstract: An immersion device for collecting a slag sample and measuring a molten metal parameter is provided. The immersion device includes an inflow conduit for directing the molten slag to a slag sample chamber and a measuring element for measuring the parameter of the molten metal. The inflow conduit and the measuring element are arranged in the top area of an immersion end of the immersion device and/or are facing towards an immersion direction. During immersion in the immersion direction into the molten slag and then the molten metal, the molten slag enters an external portion of the inflow conduit and is directed through an inner portion of the inflow conduit to the slag sample chamber. Reliable slag collection and molten metal measurement also in a converter can thereby be achieved. A method of collecting a slag sample and measuring a molten metal parameter is also provided.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 23, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Dries Beyens, Paul A. Turner
  • Patent number: 10359589
    Abstract: A consumable cored wire for measuring a temperature of a molten steel bath includes an optical fiber and a cover laterally surrounding the optical fiber in a plurality of layers. One layer is a metal pipe, also called metal jacket or metal tube. An intermediate layer, also called filler, is arranged beneath the metal tube. The intermediate layer is a rope.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 23, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Jack Childs, Dominique Feytongs
  • Patent number: 10352832
    Abstract: A sampler for taking samples from a molten metal bath, particularly a molten steel bath, includes a sample chamber assembly having a cover plate and a housing. The housing has an immersion end provided with an inflow conduit and including a sample cavity including a distribution zone, an analysis zone, and a ventilation zone. The sample cavity is dimensioned into four contiguous segments each of which has a respective length and depth. The four contiguous segments satisfy the formula: (L1/D1)+(L2/D2)+(L3/D3)+(L4/D4)>25.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 16, 2019
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventors: Dries Beyens, Jean-Paul Verhoeven
  • Publication number: 20190201968
    Abstract: The invention concerns a method for feeding an optical cored wire into a molten metal bath and an immersion system and an immersion nozzle to carry out the method. The optical cored wire (6) is decoiled, a feeding and straightening device (4) with a plurality of rollers (20, 21) conducts feeding of the optical cored wire (6) in a feeding direction towards the metal bath (11) as well as a first straightening of the optical cored wire (6), and subsequently a separated further plurality of non-motor driven nozzle straighteners (13) arranged between the feeding and straightening device (4) and the metal bath (11) conducts a second straightening of the optical cored wire (6). Very high precision of temperature measurement can thereby be achieved.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 4, 2019
    Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventors: Martin Kendall, Marc Straetemans-Winters, Dominique Feytongs
  • Patent number: 10295411
    Abstract: An optical cored wire includes an optical fiber and a cover laterally surrounding the optical fiber. The cover surrounds the optical fiber in a plurality of layers. One layer is a metal coat, also called a metal jacket or a metal tube. An intermediate layer, also called filler, is arranged beneath the metal tube. The intermediate layer is formed from a thermal insulating material having a melting point in the temperature ulnae of 1000° C. to 1500° C., such that the pieces of the intermediate layer are fluid upon exposure to the molten metal temperatures and a portion of the intermediate layer, the entire intermediate layer and/or the cover laterally surrounding the optical fiber can melt immediately upon immersion into the molten metal or immediate exposure to the molten metal.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 21, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Jack Childs, Dominique Feytongs
  • Patent number: 10203463
    Abstract: A consumable cored wire for measuring a temperature of a molten steel bath includes an optical fiber and a cover laterally surrounding the optical fiber in a plurality of layers. One layer is a metal pipe, also called metal jacket or metal tube. An intermediate layer, also called filler, is arranged beneath the metal tube. The intermediate layer is a rope.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 12, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Jack Childs, Dominique Feytongs
  • Patent number: 10151669
    Abstract: A sampler has a sample chamber for a sample forming from a molten material, at least one lower cooling body, at least one upper cooling body, at least one inner cooling body, and at least one filling part. The sample chamber is surrounded jointly at least by the lower cooling body and the inner cooling body, such that at least the sample chamber can be cooled by at least the lower and inner cooling bodies. The filling part merges into the sample chamber by a filling opening. Between a region of the outer surface of the inner cooling body and a region of the outer surface of the upper cooling body opposite the outer surface of the inner cooling body, the sampler has at least one gap for conducting at least one gas. The volume of the respective cooling bodies is larger than the volume of the gap.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 11, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Cappa, Gerrit Broekmans
  • Patent number: 10024731
    Abstract: An immersion device for measuring the temperature of a melt with an optical fiber, preferably a metal coated optical fiber, in a metallurgical vessel includes a feeding channel, feeding means for feeding an optical fiber into a disposable guiding tube and for feeding the disposable guiding tube together with the optical fiber into the melt, and control means for monitoring the position of an end of the optical fiber relative to an end of the disposable guiding tube. The relative position determines the quality of a temperature measurement.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 17, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Jacobus Neyens, Michel Thys, Frank Stevens
  • Patent number: 10024732
    Abstract: A feeding device for feeding an optical fiber from a coil and for recoiling unused fiber for use in an apparatus for measuring the temperature of a melt is provided. The feeding device includes a support for a coil, a feeding mechanism for decoiling the optical fiber from the coil and recoiling the optical fiber, at least one motor for driving the feeding mechanism, and a load for the optical fiber which avoids a spring back effect of the optical fiber from the coil. Blockage is avoided when decoiling and recoiling the optical fiber from the coil.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 17, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Jacobus Neyens, Michel Thys, Frank Stevens
  • Patent number: 9989419
    Abstract: An immersion device for disposable guiding tubes of a robotic immersion device includes a stack for the disposable guiding tubes, a feeding channel for feeding an optical fiber into the disposable guiding tube and for feeding the disposable guiding tube together with the optical fiber into a melt, and a transfer mechanism for transferring one disposable guiding tube from the stack into the channel.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 5, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Jacobus Neyens, Michel Thys, Frank Stevens
  • Patent number: 9958405
    Abstract: A drop-in probe includes a measurement head having an immersion end and an opposing second end having an end face. The measurement head is formed of first and second body halves configured to mate together along a parting line. A sample chamber, arranged within the measurement head, is thermally isolated from a cooling mass thereof and includes a metal wall having a thickness of 2.5 mm or less. An inlet tube has an inlet opening to the sample chamber. The inlet opening has a diameter Dinlet and is spaced apart from the end face of the measurement head at a distance of at least D inlet 2 . When the sample chamber is filled with a sample of the molten metal, a ratio of a mass of the metal sample to a mass of the metal wall of the sample chamber is greater than 2.6 and less than 6.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 1, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Dries Beyens, Guido Jacobus Neyens
  • Patent number: 9958427
    Abstract: A drop-in probe for determining phase changes by thermal analysis of a sample of a molten metal includes a measurement head having a first end which is an immersion end and an opposing second end having an end face. A sample chamber is arranged within the measurement head. An opening, which is free of any restrictions and which is in communication with the sample chamber, is formed in the end face of the second end of the measurement head. The sample chamber includes a first thermocouple having a first thermocouple junction enclosed within a wall which has a uniform internal geometry. A ratio D/H of an internal diameter D of the sample chamber to a length H extending between the opening and the first thermocouple junction is between 0.1 and 1.2.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: May 1, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Paul A. Turner, Harry G. Clauss, Jr.
  • Patent number: 9909810
    Abstract: An immersion device is provided for molten metal, as well as a method for making steel. The immersion device allows a trouble free operation. The immersion device includes a measuring head, a carrier for the measuring head, and a lance detachably connected to the carrier, preferably by a detachable tubular connecting element. A gas path runs from the lance to the detachable tubular connecting element. A gas tight connection is provided between a connecting surface of the lance and the detachable tubular connecting element. The tubular connecting element has wipers in the form of fins, which wipe the connecting surface of the lance during attaching and/or detaching the tubular connecting element and the lance.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: March 6, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Gerrit Broekmans, Jan Cuypers
  • Patent number: 9863709
    Abstract: A device for measuring the temperature of a melt, particularly of a molten metal, includes an optical fiber and a guiding tube having an immersion end and a second end opposite to the immersion end. The optical fiber is partially arranged in the guiding tube. An inner diameter of the guiding tube is larger than an outer diameter of the optical fiber. A first plug is arranged at the immersion end of or within the guiding tube proximate the immersion end of the guiding tube. The optical fiber is fed through the first plug and the first plug reduces a gap between the optical fiber and the guiding tube.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 9, 2018
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Guido Jacobus Neyens, Michel Thys, Frank Stevens