公开(公告)号：WO02074023A2

公开(公告)日：2002-09-19

申请号：PCT/US0207064

申请日：2002-03-08

Applicant: HYPERTHERM INC

Inventor： COOK DAVID J ,  FERLAND KIRK H ,  HACKETT CHARLES M ,  YANG YOUNG ,  COUCH RICHARD W ,  LU ZHIPENG

IPC: B23K10/02 ,  H05B7/07 ,  H05B7/18 ,  H05H1/34

CPC classification number: H05H1/34 ,  H05H2001/3436 ,  H05H2001/3442

Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.

Abstract translation: 一种等离子弧焊炬，其包括具有相对于主体中的复合电极安装的喷嘴的炬体，以限定等离子体室。 手电筒包括用于将等离子体气体引导到形成等离子体电弧的等离子体室的等离子体流动路径。 喷嘴包括中空的主体部分和限定出口的基本上固体的头部。 复合电极可以由邻近发射表面的前部电极体中具有高导热性的金属材料（例如银）制成，并且电极体的后部由具有良好的第二低成本金属材料制成 导热和导电性。 这种复合电极配置产生与电极相当的电极磨损或点蚀的电极，其价格与铜电极相当。

公开(公告)号：WO2019121921A1

公开(公告)日：2019-06-27

申请号：PCT/EP2018/085849

申请日：2018-12-19

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： WALDÈN, Bertil

IPC: C21D1/76 ,  C21D1/767 ,  C21D1/773 ,  H05B7/07 ,  B22D23/10

Abstract: A process for refining a nitrogen-containing metal alloy using arc remelting of a consumable electrode in a furnace, comprising: - providing a consumable electrode of the metal alloy; - providing a second electrode; - providing a controlled atmosphere within the furnace; - striking an arc between the consumable electrode and the second electrode to melt the consumable electrode and thereby form a molten metal alloy pool; - maintaining the arc between the consumable electrode and the molten metal alloy pool; - delivering the molten metal alloy into a mould and casting an ingot of refined metal alloy, wherein providing the controlled atmosphere comprises flowing Ar gas through the furnace at an Ar gas pressure of 1–500 Pa.

公开(公告)号：WO2007053505A3

公开(公告)日：2009-06-11

申请号：PCT/US2006042192

申请日：2006-10-30

Applicant: INTERNAT MFG SYNERGIES LTD ,  BLINSTRUB ROBERT M

Inventor： BLINSTRUB ROBERT M

IPC: B32B3/02 ,  B28B11/08 ,  B28B11/10 ,  B28B11/12 ,  B29C47/00 ,  B29C59/02 ,  B29C65/00 ,  B29C65/02 ,  B29C65/56 ,  B29C65/62 ,  B29C65/70 ,  B29C67/00 ,  B32B3/06 ,  B32B33/00 ,  B32B37/00 ,  B32B37/16 ,  B32B38/04 ,  B32B38/10 ,  H05B6/00 ,  H05B7/07

CPC classification number: B32B27/12 ,  B32B3/02 ,  B32B3/08 ,  B32B3/30 ,  B32B5/06 ,  B32B7/12 ,  B32B25/10 ,  B32B27/32 ,  B32B2262/0261 ,  B32B2274/00 ,  B32B2307/744 ,  B32B2471/04 ,  B32B2605/003 ,  B60N3/044 ,  B60N3/048 ,  Y10T428/192 ,  Y10T428/23929 ,  Y10T428/23936 ,  Y10T428/23979

Abstract: The present invention relates to a method of manufacturing a floor mat (10, 110) having a dressed edge including extruding material into a sheet that defines the bottom layer (12, 112) of a floor mat (10, 110). The extruded sheet is bonded to a fabric sheet that defines the top layer (22, 122) of a floor mat (10, 110) where the two layers cooperate to define a laminate. A plurality of nibs (18, 118) is defined on the extruded sheet and a portion of the nibs (18, 118) are subsequently removed through the application of an electromagnetic frequency having a wavelength between 8kHz and 35,000MHz to provide at least one smooth area (20, 120). The laminate is cut into a predetermined shape having a peripheral edge (28, 128), where the smooth area (20, 120) is disposed along the peripheral edge (28, 128). The peripheral edge (28, 128) is dressed with a border (32, 132) that conceals the joint (30, 130) between the top layer (22, 122) and the bottom layer (12, 112) and facilitates the bond therebetween.

Abstract translation: 本发明涉及一种制造具有修整边缘的地垫（10,110）的方法，该修整边缘包括挤压材料到限定地板垫（10,110）的底层（12,112）的片材中。 挤压片材结合到限定地板垫（10,110）的顶层（22,122）的织物片，其中两层协作以限定层压体。 在挤出的片材上限定多个笔尖（18,118），随后通过施加具有8kHz至35,000MHz之间的波长的电磁频率去除一部分笔尖（18,118），以提供至少一个平滑 区域（20,120）。 将层压体切割成具有周边边缘（28,128）的预定形状，其中平滑区域（20,120）沿着周边边缘（28,128）设置。 周边边缘（28,128）用边框（32,132）修整，该边框隐藏了顶层（22,122）和底层（12,112）之间的接合部（30,130），并且促进了它们之间的结合 。

公开(公告)号：WO2022187638A1

公开(公告)日：2022-09-09

申请号：PCT/US2022/018930

申请日：2022-03-04

Applicant: ECOLAB USA INC.

Inventor： SRIRAM, Suresh R.

IPC: H05B7/07 ,  H05B7/12

Abstract: Described are graphite-containing electrodes comprising zirconium-based coatings, which slow the loss of material from the electrodes when used at high temperatures, for example when used in arc furnaces between 1000 and 2000 °C. The zirconium-based coating may be disposed on a graphite-containing surface of the electrode, or on a pre-coating disposed on a surface of the electrode. The zirconium-based coatings include one or more zirconium compounds such as zirconia. Also described are compositions and methods to coat graphite-containing electrodes with zirconium-based coating compositions.

公开(公告)号：WO2019040715A1

公开(公告)日：2019-02-28

申请号：PCT/US2018/047697

申请日：2018-08-23

Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.

Inventor： TONIOLO, Pablo ,  GERHAN, Ronald ,  PAUL, Ryan ,  MERZLAK, James ,  MESSINEO, Frank, Andrew, Jr.

IPC: B65C7/00 ,  G06K19/07 ,  G06K7/10 ,  G09F3/12 ,  H01M4/96 ,  H05B7/07 ,  H05B7/14 ,  H05B7/085 ,  H05B7/09

Abstract: A system and method is disclosed for monitoring graphite electrodes for use in an electric arc furnace includes receiving an electrode identifiers from a radio frequency identification (RFID) tag reader configured to interrogate RFID tags in the vicinity of an electric arc furnace (EAF), wherein the RFID tags are attached to electrodes. The electrode identifier is associated with EAF data collected from the EAF and the association is stored in a memory. The association is used for generating current and past operating parameters of the electric arc furnace for specific electrodes. Data for each specific electrode used in the EAF can also be collected for determining performance parameters for specific electrodes.

公开(公告)号：WO00074442A1

公开(公告)日：2000-12-07

申请号：PCT/DE1999/001669

申请日：1999-05-31

IPC: H05B7/148 ,  F27B3/08 ,  F27B3/28 ,  F27D21/00 ,  H05B7/07 ,  H05B7/152

CPC classification number: H05B7/152 ,  Y02P10/256 ,  Y02P10/259

Abstract: The invention relates to a method for the continuous determination of the distance between the electrode tip (12) and bath level (10) of the previous melt in an electric arc furnace so as to be able to exactly determine electric energy consumption per tonne of scrap actually melted, electrode wear and the residual liquid bath present in the electric arc furnace after tapping.

Abstract translation: 本发明，准确的电极消耗和底部的在电弧炉的残留量根据一个涉及一种用于连续测定电极尖端（12）和在电炉先前熔体浴高度（10）之间的距离的方法，其中的每个实际熔化吨废料的消耗电力的准确信息的目的 满足攻。