公开(公告)号：US20240361190A1

公开(公告)日：2024-10-31

申请号：US18685416

申请日：2022-07-28

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Gert JANSSEN ,  Michel VAN VLIERBERGHE ,  Luc VRANCKX

IPC: G01K11/32 ,  G01K1/08 ,  G01K1/14

CPC classification number: G01K11/32 ,  G01K1/08 ,  G01K1/14

Abstract: The present invention relates to a measuring apparatus for measuring the temperature of a molten metal bath, comprising an optical device, a detecting means, a storing unit for the optical device, a rotatable support for the storing unit for the optical device, a moving means, a straightening means, a housing and a guiding system connected to the housing. The housing encloses the detecting means, the storing unit for the optical device, the rotatable support for the storing unit of the optical device, the moving means, and the straightening means. The moving means is adapted to feed and retract the optical device and comprises at least one motor for forward and backward driving the rotatable support for the storing unit for the optical device and a feeding means for feeding the optical device driven by at least one motor for forward and backward driving.

公开(公告)号：US12123780B2

公开(公告)日：2024-10-22

申请号：US17649152

申请日：2022-01-27

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Michel Van Vlierberghe ,  Guido Neyens

IPC: G01J5/10 ,  F27B3/22 ,  F27B3/28 ,  G01D5/20 ,  G01J5/00

CPC classification number: G01J5/10 ,  F27B3/22 ,  F27B3/28 ,  G01D5/20 ,  G01J5/004

Abstract: The invention relates to an immersion device and a method for detecting a position of an optical cored wire using an immersion device. An immersion device for measuring a temperature of a metal melt inside an electric arc furnace vessel with an optical cored wire comprises a blowing lance for blowing purge gas into an entry point to the vessel and a detecting means for detecting a position of the optical cored wire. The optical cored wire can be moved in a feeding channel and/or in the blowing lance relative to the entry point. The detecting means is configured to detect the presence of the optical cored wire in or close to the blowing lance. This enables short distances between the leading end of the fiber and the melt and, thus, short time intervals between temperature measurement sequences.

公开(公告)号：US20240003758A1

公开(公告)日：2024-01-04

申请号：US18254815

申请日：2021-12-01

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Michel VAN VLIERBERGHE ,  Guido NEYENS

IPC: G01K11/32

CPC classification number: G01K11/32

Abstract: The present invention relates to a method and a system for determining a series of at least two temperature values of a molten metal bath with a device comprising an optical cored wire and a detector. The method according to the invention has been proven to be especially suitable for multiple repeated measurements, wherein a final end temperature of the molten metal bath shall be reached.

公开(公告)号：US20230349767A1

公开(公告)日：2023-11-02

申请号：US18041608

申请日：2021-07-05

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Christopher HALLAM ,  Mark LEE ,  Ross PRODGER ,  Paul A. TURNER

IPC: G01J5/00 ,  G01J5/0821 ,  G01J5/02

CPC classification number: G01J5/004 ,  G01J5/0821 ,  G01J5/0205

Abstract: The invention relates to a device and method for measuring a temperature of a molten metal bath. The device according to the present invention comprises a cored wire and a detector. The cored wire comprises an optical fiber, a first metal tube, a filler layer of an organic material and a second metal tube accommodating the filler layer.

公开(公告)号：US11440081B2

公开(公告)日：2022-09-13

申请号：US16314550

申请日：2017-08-24

Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.

Inventor： Martin Kendall ,  Marc Straetemans ,  Dominique Feytongs

IPC: G01K1/02 ,  B21F1/02 ,  G01J5/00 ,  G01J5/0821 ,  G01J5/02 ,  C21C7/00 ,  F27D3/00 ,  C22B9/05 ,  G01N33/205 ,  F27D21/00

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.

公开(公告)号：US20200256768A1

公开(公告)日：2020-08-13

申请号：US16776219

申请日：2020-01-29

Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.

Inventor： Jan Cuypers ,  Jean-Paul Verhoeven

IPC: G01N1/12 ,  G01N33/205 ,  G01N33/2025

Abstract: The present invention relates to an apparatus for demolding and analyzing a direct analysis sample formed from a molten metal material contained within a sample chamber assembly, wherein the sample chamber assembly comprises at least a sample housing, a cover plate and closing means, comprising: a cabinet defining an interior and comprising at least one opening for the sample housing to enter the cabinet, and analyzing means located inside the cabinet for analyzing an analysis surface of the sample; demolding means adapted to remove at least the closing means to expose at least part of the analysis surface of the sample; and transporting means adapted to hold and transport the sample housing at least between a sample demolding position, where the closing means is removed by the demolding means, and a sample analysis position, where the analysis surface of the sample is analyzed by the analyzing means, and wherein the sample demolding position and the sample analysis position are different from each other. The invention also relates to a system and method for demolding and analyzing a direct analysis sample.

公开(公告)号：US10514302B2

公开(公告)日：2019-12-24

申请号：US15828758

申请日：2017-12-01

Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.

Inventor： Martin Kendall ,  Robert Charles Whitaker ,  Marc Straetemans ,  Dominique Feytongs ,  Jack Childs

IPC: G01K1/00 ,  G01J5/00 ,  G01J5/08 ,  G01J5/10 ,  G01K1/02

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.

公开(公告)号：US10024732B2

公开(公告)日：2018-07-17

申请号：US15007986

申请日：2016-01-27

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Guido Jacobus Neyens ,  Michel Thys ,  Frank Stevens

IPC: G01K11/32 ,  G01N33/20 ,  G01J5/00 ,  G01J5/08 ,  G01J5/04 ,  G01J5/02 ,  B65H57/12 ,  B65H75/44 ,  G02B6/44

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.

公开(公告)号：US20180164193A1

公开(公告)日：2018-06-14

申请号：US15838606

申请日：2017-12-12

Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.

Inventor： Dries Beyens

IPC: G01N1/20 ,  G01N33/20

CPC classification number: G01N1/20 ,  G01N1/125 ,  G01N33/205

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.

公开(公告)号：US09958405B2

公开(公告)日：2018-05-01

申请号：US14971363

申请日：2015-12-16

Applicant: Heraeus Electro-Nite International N.V.

Inventor： Dries Beyens ,  Guido Jacobus Neyens

IPC: G01K1/00 ,  G01N25/04 ,  G01K13/12 ,  G01K7/02 ,  G01N33/20 ,  C21B7/24 ,  C21C5/46 ,  F27D21/00 ,  G01N1/12

CPC classification number: G01N25/04 ,  C21B7/24 ,  C21C5/4673 ,  C21C2005/5288 ,  F27D21/00 ,  F27D21/0014 ,  G01K7/02 ,  G01K7/025 ,  G01K13/125 ,  G01N1/125 ,  G01N33/206 ,  Y02P10/216

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.