公开(公告)号：US20190191502A1

公开(公告)日：2019-06-20

申请号：US16284925

申请日：2019-02-25

Applicant: DANIELI AUTOMATION S.P.A.

Inventor： Antonello Mordeglia ,  Enzo Gigante

IPC: H05B7/152 ,  H05B7/20 ,  F27D11/08 ,  F27B3/08 ,  F27B3/28 ,  H05B7/144

CPC classification number: H05B7/152 ,  F27B3/085 ,  F27B3/28 ,  F27D11/08 ,  F27D2099/0021 ,  H05B7/144 ,  H05B7/148 ,  H05B7/20 ,  Y02P10/256 ,  Y02P10/259

Abstract: An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

公开(公告)号：US20180169761A1

公开(公告)日：2018-06-21

申请号：US15898474

申请日：2018-02-17

Applicant: MolyWorks Materials Corporation

Inventor： CHRISTOPHER PAUL EONTA ,  ANDREW VAN OS LaTOUR ,  SCOTT WESTON STEINER

IPC: B22F9/06 ,  F27D27/00 ,  B22D11/14 ,  B22D45/00 ,  B22F9/08 ,  B22D11/06 ,  F27D11/08 ,  F27D11/06 ,  F27D11/00 ,  F27D9/00 ,  F27D3/14 ,  F27D3/00 ,  F27D1/00 ,  F27B14/14 ,  F27B14/08 ,  F27B14/04 ,  F27B14/02

CPC classification number: B22F9/06 ,  B22D11/0605 ,  B22D11/144 ,  B22D45/00 ,  B22F9/082 ,  B22F2009/0836 ,  B22F2009/084 ,  B22F2999/00 ,  F27B14/02 ,  F27B14/04 ,  F27B14/08 ,  F27B14/14 ,  F27D1/0006 ,  F27D3/0024 ,  F27D3/14 ,  F27D9/00 ,  F27D11/00 ,  F27D11/06 ,  F27D11/08 ,  F27D27/00 ,  F27D2009/001 ,  B22F2202/01 ,  B22F2202/05 ,  B22F2202/06 ,  B22F2202/13

Abstract: A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step.

公开(公告)号：US10001324B2

公开(公告)日：2018-06-19

申请号：US14930793

申请日：2015-11-03

Applicant: DAIDO STEEL CO., LTD.

Inventor： Noriyuki Tomita ,  Yoshikazu Tanaka

IPC: F27D3/00 ,  F27B3/08 ,  F27B3/10 ,  F27B3/12 ,  F27B3/18 ,  F27D11/08 ,  F27B5/14 ,  F27D99/00

CPC classification number: F27D3/0025 ,  F27B3/085 ,  F27B3/10 ,  F27B3/12 ,  F27B3/183 ,  F27B2005/143 ,  F27D11/08 ,  F27D2099/0098

Abstract: A method of operating an electric arc furnace containing a furnace shell having a tapping hole, a plurality of electrodes, and a rotating apparatus that rotates the furnace shell around a vertical axis relative to the electrodes, the method contains a charging step of opening an opening-and-closing door of a scrap bucket containing a metal material and falling the metal material into the furnace shell in which the furnace shell is rotated by the rotating apparatus until a direction of a line connecting a center of the furnace shell to a center of the tapping hole intersects an extension direction of a seam at a closing side of the opening-and-closing door, the opening-and-closing door is opened in this positional relationship to charge the metal material.

公开(公告)号：US09925582B2

公开(公告)日：2018-03-27

申请号：US15450420

申请日：2017-03-06

Applicant: Kobe Steel, Ltd.

Inventor： Kazuyuki Yanagiya ,  Eisuke Kurosawa ,  Takehiro Nakaoka ,  Hidetaka Kanahashi

IPC: B22D11/00 ,  B22D11/11 ,  B22D41/015 ,  B22D11/04 ,  B22D11/041 ,  B22D21/00 ,  F27D11/08

CPC classification number: B22D11/0408 ,  B22D11/001 ,  B22D11/041 ,  B22D11/11 ,  B22D21/005 ,  B22D27/04 ,  B22D41/015 ,  F27D11/08

Abstract: The present invention provides a method for casting a slab having a good cast surface. The method includes heating the surface of molten metal on a metal inlet side of a mold by a first heat source so that the following formulas: q≥0.87 and c≤11.762q+0.3095 are satisfied where c is a cycle time [sec] of turning movement of the first heat source, and q is an average amount of heat input [MW/m2] determined by accumulating an amount of heat input applied by at least the first heat source to the contact region between the upper surface of the slab on the metal inlet side and the mold, along the path of turning movement of the first heat source, and dividing the resultant accumulated value by the cycle time c.

公开(公告)号：US20180051931A1

公开(公告)日：2018-02-22

申请号：US15550401

申请日：2016-02-12

Applicant: DENTSPLY SIRONA inc.

Inventor： Peter FORNOFF ,  Christian SCHMIDT

IPC: F27B17/02 ,  F27D99/00 ,  F27B5/14 ,  F27D11/02 ,  F27D11/06 ,  F27D11/08

CPC classification number: F27B17/025 ,  F27B5/14 ,  F27B17/0075 ,  F27D11/02 ,  F27D11/06 ,  F27D11/08 ,  F27D99/0006 ,  F27D2099/0008

Abstract: The invention relates to a sintering furnace (1) for components (15) made of a sintered material, in particular for dental components, comprising a furnace chamber (2) having a chamber volume (VK) and a chamber inner surface (OK), wherein a heat-up device (5), a receiving space (9) having a gross volume (VB) located in the chamber volume (VK) and delimited by the heat-up device (5), and a useful region (10) having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber (2). The furnace chamber (2) has an outer wall (3) consisting of a plurality of walls having a wall portion (7) to be opened for introduction into the receiving space (9) of a component to be sintered (15) and having an object volume (VO). In the furnace chamber (2) the heat-up device (5) has a thermal radiator (6) having a radiation field (13) which radiator is disposed on at least one side of the receiving space (9). Said thermal radiator (6) has a specific resistance of 0.1 Ωmm2/m to 1,000,000 Ωmm2/m and has a total surface, the maximum of which is three times the chamber inner surface (OK). With this sintering furnace (1) a heat-up temperature of at least 1100° C. can be achieved within 5 minutes at a maximum power input of 1.5 kW.

公开(公告)号：US20170280519A1

公开(公告)日：2017-09-28

申请号：US15080996

申请日：2016-03-25

Applicant: Air Liquide Industrial U.S. LP

Inventor： Terence D. LASORDA

IPC: H05B7/18 ,  F27D11/08 ,  H05B7/06

CPC classification number: H05B7/185 ,  C21C5/5217 ,  C21C5/562 ,  C21C2005/5258 ,  F27B3/085 ,  F27B3/20 ,  F27B3/22 ,  F27B3/24 ,  F27D9/00 ,  F27D11/08 ,  H05B7/06 ,  Y02P10/216

Abstract: A method for providing a region of inert gas around the electrodes in an electric arc furnace is provided. This electric arc furnace includes consumable graphite electrodes, a melting zone, and at least one lance including an inlet and an outlet, wherein the inlet is connected to a liquid inert fluid source. The method includes introducing the consumable graphite electrodes into the melting zone, wherein the distal ends of the electrodes form arcs with a solid charge of scrap metal. The method also includes introducing the liquid inert fluid into the inlet end of the at least one lance, wherein the inert fluid exits the outlet end and is introduced into the melting zone proximate to the distal ends of the electrodes, thereby providing an inert gaseous blanket, once the liquid vaporizes, around the distal ends of the electrodes

公开(公告)号：US09773642B2

公开(公告)日：2017-09-26

申请号：US14355847

申请日：2013-06-12

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Takashi Oda ,  Hisamune Tanaka ,  Takeshi Shiraki

IPC: H01J37/305 ,  H01J37/304 ,  F27D11/08 ,  C22B9/22 ,  B22D23/06 ,  H01J37/22 ,  F27D11/12 ,  F27D19/00 ,  C22C14/00

CPC classification number: H01J37/304 ,  B22D23/06 ,  C22B9/228 ,  C22C14/00 ,  F27D11/08 ,  F27D11/12 ,  F27D19/00 ,  F27D2019/0071 ,  H01J37/22 ,  H01J37/222 ,  H01J37/3045 ,  H01J37/305

Abstract: An electron beam melting furnace includes a hearth, a mold, an electron gun for keeping metal as a molten state, an electron beam controller for controlling direction of the electron beam, an image sensor for molten metal, and an operating device. A method for operating the furnace includes a step of inputting electron beam emitting coordinates in the electron beam controller, a step of emitting the electron beam, a step of detecting a high electron beam intensity spot by the image sensor, a step of calculating coordinates of high electron beam intensity based on the detected signal by the operating device, a step of calculating differences between the coordinates of emission and the coordinates of high electron beam intensity spot, a step of inputting the difference in the electron beam controller, and a step of controlling the location of electron beam spot.

公开(公告)号：US20170261264A1

公开(公告)日：2017-09-14

申请号：US15605427

申请日：2017-05-25

Applicant: Northeastern University

Inventor： Zhenbang Wang ,  Yingwei Zhang ,  Lin Feng

IPC: F27D21/00 ,  G06K9/20 ,  G06K9/00 ,  G06K9/62 ,  G06K9/46 ,  F27D11/08 ,  G06T7/40 ,  G06T7/13 ,  G06K9/48 ,  G06T7/00 ,  G01M3/00 ,  H04N7/18 ,  G06T7/90

CPC classification number: F27D21/0021 ,  F27D11/08 ,  F27D2021/0085 ,  F27D2021/026 ,  G01M3/38 ,  G06K9/00718 ,  G06K9/00751 ,  G06K9/00771 ,  G06K9/6212 ,  G06K2009/00738 ,  G06T7/0004 ,  G06T7/001 ,  G06T7/13 ,  G06T7/40 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/30232 ,  H04N7/181

Abstract: A fault diagnosis method for an electrical fused magnesia furnace includes steps of: 1) arranging six cameras; 2) obtaining video information by the six cameras and sending the video information to a control center; then analyzing the video information by a chip of the control center; wherein a multi-view-based fault diagnosis method is used by the chip, comprising steps of: 2-1) comparing a difference between two consecutive frame histograms for shots segmentation; 2-2) computing a set of characteristic values for each shot obtained by the step 2-1), and then computing color, texture, and motion vector information; finally, evaluating shot importance via entropy; 2-3) clustering shots together by calculating similarity; 2-4) generating and optimizing a multi-view video summarization with a multi-objective optimization model; and 2-5) providing fault detection and diagnosis; and 3) displaying results of the fault detection and diagnosis on a host computer inter face of the control center.

公开(公告)号：US20170252787A1

公开(公告)日：2017-09-07

申请号：US15446491

申请日：2017-03-01

Applicant: Michael Thomas STAWOVY

Inventor： Michael Thomas STAWOVY

IPC: B21C1/02 ,  B33Y70/00 ,  B22D7/00 ,  B22F3/02 ,  B32B15/01 ,  C22C27/04 ,  F27D11/08 ,  B23K15/00 ,  B33Y10/00 ,  B33Y80/00 ,  B22F3/24

CPC classification number: B21C1/02 ,  B22D7/005 ,  B22F3/02 ,  B22F3/1055 ,  B22F3/24 ,  B22F5/12 ,  B22F2301/20 ,  B23K9/044 ,  B23K9/24 ,  B23K9/295 ,  B23K15/0086 ,  B23K15/0093 ,  B23K2103/08 ,  B32B15/01 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C27/04 ,  F27D11/08

Abstract: In various embodiments, three-dimensional layered metallic parts are substantially free of gaps between successive layers, are substantially free of cracks, and have densities no less than 97% of the theoretical density of the metallic material.

公开(公告)号：US09696092B2

公开(公告)日：2017-07-04

申请号：US15025286

申请日：2015-07-13

Applicant: Mark Edward Trapp

Inventor： Mark Edward Trapp

IPC: F27D1/12 ,  F27D1/00 ,  F27D21/00 ,  F27B3/28 ,  F27B3/24 ,  F27D21/04 ,  C21C5/46 ,  F27B14/20 ,  F27D11/08 ,  F27D19/00 ,  C21C5/52 ,  F27B14/08 ,  F27D9/00

CPC classification number: F27D21/0014 ,  C21C5/4673 ,  C21C2005/5288 ,  F27B3/24 ,  F27B3/28 ,  F27B14/20 ,  F27B2014/0837 ,  F27D11/08 ,  F27D21/04 ,  F27D2009/0013 ,  F27D2019/0025 ,  Y02P10/216

Abstract: A furnace cooling panel monitoring system utilizes individual cooling panel data to produce critical monitoring data. An exemplary cooling panel monitoring system utilizes the input from a plurality of temperature sensors configured to accurately measure the temperature change of cooling fluid flowing through each individual panel. The change in temperature from the inlet to the outlet of a cooling panel along with the flow rate of the cooling fluid through the panel can be used to calculate the a heat energy dissipation rate of the cooling panel, or heat flux. The flow rate through individual panels is determined by K-values or resistance to flow constants for a given cooling panel. The heat energy dissipation rate for individual panels can be provided to a user through a computer implemented monitoring program in real time. Alerts may be initiated by the computer implemented monitoring program when a threshold value has been exceeded.