公开(公告)号：US10801083B2

公开(公告)日：2020-10-13

申请号：US14786152

申请日：2014-04-23

Applicant: DANIELI & C. OFFICINE MECCANICHE SPA

Inventor： Bernard Villemin ,  Uwe Wilhelm ,  Thomas Narholz ,  Enrico Riga

IPC: C21C5/52 ,  C21C5/56 ,  F27B3/08 ,  F27B3/18 ,  F27B3/20 ,  F27D3/00 ,  F27D11/10 ,  F27D13/00

Abstract: Method for melting metal material in a melting plant comprising at least an electric furnace having at least a shell into which said metal material is introduced, and feed means to load said metal material into said shell, said method comprising at least a step of loading said metal material into said shell by means of said feed means, a melting step in which said metal material is melted, and a subsequent tapping step in which the molten metal material is tapped.

公开(公告)号：US10662509B2

公开(公告)日：2020-05-26

申请号：US15261205

申请日：2016-09-09

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Uthamalingam Balachandran ,  Beihai Ma ,  Stephen E. Dorris

IPC: C22C32/00 ,  B22D21/00 ,  B22D23/06 ,  B22D29/00 ,  B22D30/00 ,  F27D11/12 ,  F27D13/00 ,  F27B17/00 ,  F27D7/06 ,  B22D27/15 ,  C22C1/05 ,  C22C26/00 ,  C22C1/02 ,  C22C1/10

Abstract: A method for making covetic metal-carbon composites or compositions by electron beam melt heating under vacuum (pressure

公开(公告)号：US10526677B2

公开(公告)日：2020-01-07

申请号：US15385835

申请日：2016-12-20

Applicant: Benteler Automobiltechnik GmbH

Inventor： Georg Frost ,  Markus Kettler ,  Karsten Bake

IPC: C21D9/46 ,  C21D9/00 ,  C21D6/00 ,  F27D3/00 ,  F27D9/00 ,  F27D13/00

Abstract: A heat treatment furnace and a method for heat treatment of a steel sheet blank is disclosed having at least one furnace chamber and a transport system for conveying the steel sheet blanks through the furnace chamber. A preheating chamber, a metallurgical bonding path and a cooling chamber, wherein the steel sheet blank can be heated in the preheating chamber to a temperature of above 200° C. A method for the production of a hot-formed and press-quenched motor-vehicle part is also disclosed.

公开(公告)号：US20190017745A1

公开(公告)日：2019-01-17

申请号：US16025230

申请日：2018-07-02

Applicant: Air Products and Chemicals, Inc.

Inventor： Gregory J. Buragino ,  Anup Vasant Sane ,  Shailesh Pradeep Gangoli ,  Xiaoyi He ,  Larry Saul Zelson

IPC: F27D13/00 ,  F27B3/08 ,  F27D3/00 ,  C22B1/02

Abstract: A direct flame impingement system for preheating metal pellets before charging into a melting furnace, wherein the pellets are transported by a conveyor belt to a chute discharging into the melting furnace, including a refractory-lined preheater hood including a chute hood covering the chute and a conveyor hood covering at least a portion of the conveyor belt, the preheater hood having an entrance end through which pellets enter and an exit end through which pellets exit toward the melting furnace, and at least one bank of burners each containing at least one burner disposed in the hood positioned to direct flames into contact with the pellets being transported to preheat the pellets prior to discharge into the melting furnace.

公开(公告)号：US20180195799A1

公开(公告)日：2018-07-12

申请号：US15911957

申请日：2018-03-05

Applicant: CISDI ENGINEERING CO., LTD

Inventor： Qiming Huang ,  Zhan Gao ,  Weizhi Shi ,  Cunzhen Tan

IPC: F27B3/18 ,  F27D13/00 ,  F27D17/00

CPC classification number: F27B3/18 ,  C21C5/5294 ,  C21C5/565 ,  C21C2005/5282 ,  F27D13/002 ,  F27D17/003 ,  F27D17/004

Abstract: A scrap steel preheating type electric arc furnace and a method for improving a heating cold region of a side wall charging electric arc furnace are provided. The scrap steel preheating type electric arc furnace includes an electric arc furnace body and an inclined scrap steel preheating chamber. An included angle between the scrap steel preheating chamber and a horizontal plane is 30° to 65°. The scrap steel preheating chamber is connected with the electric arc furnace body. A dust removal pipe chamber is at an upper end. A material blocking tooth rake is on the scrap steel preheating chamber. A driving mechanism is below the material blocking tooth rake. Flue gas enters the scrap steel preheating chamber, penetrates through the material blocking tooth rake and the scrap steel and is sucked out by the dust removal pipe chamber. The scrap steel is preheated; then, the material blocking tooth rake is opened; and the preheated scrap steel slides to a center of the electric arc furnace body along a slot bottom of the inclined scrap steel preheating chamber. A falling angle of the scrap steel is changed through a method of matching the scrap steel preheating chamber with a large inclined angle and the material blocking tooth rake, thereby overcoming a problem of lateral stacking of the side wall charging electric arc furnace, reducing impact force of the scrap steel to the device and greatly enhancing reliability of the device.

公开(公告)号：US09976806B2

公开(公告)日：2018-05-22

申请号：US14526607

申请日：2014-10-29

Applicant: POSCO

Inventor： Sang Han Son ,  Jong In Park ,  Min Kyu Wang ,  Byung Woon Hwang

IPC: C21B3/00 ,  F27D13/00 ,  F27B3/04 ,  F27D17/00 ,  F27D9/00 ,  F27D7/04 ,  F27D99/00 ,  C21B13/00 ,  C21B13/10 ,  C21B13/14 ,  F27B17/00 ,  F27D3/12

CPC classification number: F27B3/045 ,  C21B13/0066 ,  C21B13/0073 ,  C21B13/105 ,  C21B13/14 ,  C21B2100/04 ,  F27B2017/0091 ,  F27D7/04 ,  F27D9/00 ,  F27D13/00 ,  F27D17/00 ,  F27D99/0033 ,  F27D99/007 ,  F27D2003/125 ,  Y02P10/136 ,  Y02P10/283

Abstract: A method for manufacturing reduced iron using the same, and more particularly, to a burning apparatus heating a coal briquette to manufacture reduced iron, which includes a first burning furnace heating the coal briquette while moving the truck accommodating the coal briquette along a linear movement path; a second burning furnace connected to the other side of the first burning furnace, and heating the coal briquette while moving the coal briquette discharged from the truck along an annular path; and a cooling device connected to the second burning furnace, and cooling the reduced iron while moving reduced iron reduced in the second burning furnace along an annular path. The burning apparatus circulates exhaust gases generated in the burning furnace and cooling device to control a temperature and an oxygen concentration and thus improves a metallization rate of the reduced iron.

公开(公告)号：US09945002B2

公开(公告)日：2018-04-17

申请号：US13825768

申请日：2011-09-15

Applicant: Hannes Beile ,  Markus Dorndorf ,  Hansjörg Huber ,  Christiane Kiessner ,  Petra Kreuder ,  Matthias Krieg ,  Alexander Mëller ,  Robert Schalast ,  Michael Schmid

Inventor： Hannes Beile ,  Markus Dorndorf ,  Hansjörg Huber ,  Christiane Kiessner ,  Petra Kreuder ,  Matthias Krieg ,  Alexander Mëller ,  Robert Schalast ,  Michael Schmid

IPC: F27D13/00 ,  F27D3/00 ,  C21C5/56 ,  F27B3/18 ,  C21C5/52

CPC classification number: C21C5/565 ,  C21C2005/5282 ,  F27B3/186 ,  F27D3/0032 ,  F27D3/0033 ,  F27D13/002 ,  Y02P10/216

Abstract: A metallurgical melting vessel has a vertical shaft, surrounded by a housing wall, which receives steel scrap. At least one closure element, having laterally spaced-apart fingers extending parallel to one another, is mounted such that it can move between a closed position and an open position. In the closed position, the fingers protrude at least partially into the shaft for the purpose of holding back steel scrap. In the open position, the fingers free the shaft at least to such an extent that the steel scrap can fall from the shaft into the melting vessel. The at least one closure element is mounted so as to be movable from the side of the shaft into the shaft and laterally thereoutof.

公开(公告)号：US09611519B2

公开(公告)日：2017-04-04

申请号：US13909343

申请日：2013-06-04

Applicant: GDF SUEZ

Inventor： Philippe Buchet ,  Nicolas Richard ,  Pierre-Jacques Lhomme

IPC: C21D9/54 ,  F23L15/02 ,  C21D9/00 ,  C21D1/34 ,  C21D9/56 ,  F27B9/02 ,  F27B9/28 ,  F27B9/36 ,  F27D13/00

CPC classification number: C21D9/54 ,  C21D1/34 ,  C21D9/0006 ,  C21D9/56 ,  F23L15/02 ,  F27B9/02 ,  F27B9/28 ,  F27B9/36 ,  F27D13/00

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.

公开(公告)号：US09551531B2

公开(公告)日：2017-01-24

申请号：US14128832

申请日：2012-06-28

Applicant: Stefano Miani

Inventor： Stefano Miani ,  Riccardo Gottardi

IPC: F27D13/00 ,  C21C5/56 ,  C21C5/52

CPC classification number: F27D13/00 ,  C21C5/527 ,  C21C5/565 ,  F27D13/002 ,  Y02P10/216

Abstract: The invention relates to a device having a bottom, side walls and a ceiling, which together define a channel, as well as transportation means, extending in an axial direction of said channel from an entry port of the channel to an exit port of said channel, for transferring a metallurgical material from said entry port to said exit port.

Abstract translation: 本发明涉及一种具有底部，侧壁和天花板的装置，其一起限定通道，以及输送装置，其沿着所述通道的轴向方向从通道的入口端口延伸到所述通道的出口 用于将冶金材料从所述入口端口转移到所述出口。

公开(公告)号：US20160377345A1

公开(公告)日：2016-12-29

申请号：US15190683

申请日：2016-06-23

Applicant: NOVELIS INC.

Inventor： David Michael Custers ,  Michael Bull ,  Andrew Hobbis

IPC: F27D13/00 ,  C21D1/52 ,  C21D11/00 ,  F27D19/00 ,  C21D9/46 ,  C21D1/42 ,  F27D11/06

CPC classification number: F27D13/00 ,  C21D1/42 ,  C21D1/52 ,  C21D9/46 ,  C21D9/56 ,  C21D9/562 ,  C21D9/60 ,  C21D11/00 ,  F27D11/06 ,  F27D19/00 ,  F27D2019/0018 ,  F27D2019/0034 ,  Y02P10/212 ,  Y02P10/253

Abstract: System and method for using fast response heaters to pre-heat metal before entering a metal treatment furnace, which may improve control over metal processing, especially in response to changes in material, mass flow rate, line speed, and/or desired treatment process. Fast response heaters may be used with control systems to adjust the output of the fast response heater based on operator inputs, direct or indirect sensing of process parameters, and/or the use of thermal models to quickly adjust fast response heater output while a metal treatment furnace remains at a constant temperature or slowly transitions into a new operating state. The resulting gains in process control result in higher quality products, reduced scrap, and increases in line speed and output.

Abstract translation: 使用快速响应加热器在进入金属处理炉之前预热金属的系统和方法，其可以改善对金属加工的控制，特别是响应材料变化，质量流速，线速度和/或期望的处理过程。 快速响应加热器可以与控制系统一起使用，以便基于操作者输入，直接或间接检测过程参数来调节快速响应加热器的输出，和/或使用热模型来快速调整快速响应加热器输出，而金属处理 炉保持在恒定温度或缓慢转变到新的运行状态。 由此产生的过程控制带来的产品质量较高，废料量减少，线速度和产量增加。