Including Product Cutting Or Breaking Patents (Class 164/460)
  • Publication number: 20150111027
    Abstract: An organic release agent is vacuum deposited over a substrate and surface treated with a plasma or ion-beam source in a gas rich in oxygen-based functional groups to harden a very thin layer of the surface of the deposited layer in passivating environment. Aluminum is subsequently vacuum deposited onto the hardened release layer to form a very flat and specular thin film. The film is exposed to a plasma gas containing oxygen or nitrogen to passivate its surface. The resulting product is separated from the substrate, crushed to break up the film into aluminum flakes, and mixed in a solvent to separate the still extractable release layer from the aluminum flakes. The surface treatment of the release layer greatly reduces wrinkles in the flakes, improving the optical characteristics of the flakes. The passivation of the flake material virtually eliminates subsequent corrosion from exposure to moisture.
    Type: Application
    Filed: December 5, 2014
    Publication date: April 23, 2015
    Inventors: Michael G. Mikhael, Angelo Yializis
  • Publication number: 20150020992
    Abstract: A non-scaling heat-treatable steel with particular suitability for producing hardened or die-hardened components is disclosed, characterized by the following chemical composition in % by weight: C 0.04-0.50; Mn 0.5-6.0; Al 0.5-3.0; Si 0.05-3.0; Cr 0.05-3.0; Ni less than 3.0; Cu less than 3.0; Ti 0.010-?0.050; B 0.0015-?0.0040; P less than 0.10; S less than 0.05; N less than 0.020; remainder iron and unavoidable impurities. Further disclosed is a method for producing a non-scaling hardened component from the steel and a method for producing a hot strip from a steel.
    Type: Application
    Filed: March 19, 2013
    Publication date: January 22, 2015
    Inventors: Joachim Schöttler, Friedrich Luther, Stefan Mütze
  • Publication number: 20150021516
    Abstract: A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventors: Seung-Uk Kwon, Young-Ugk Kim, Jae-Hyuk Kim, Yury Matulevich, Yo-Han Park, Chang-Ui Jeong, Soon-Sung Suh, Hee-Young Chu, Duk-Hyoung Yoon
  • Patent number: 8689856
    Abstract: A continuous casting furnace is configured for efficiently continuously casting ingots, including titanium alloy ingots. The furnace is configured with an internal cutter for cutting an ingot within the furnace interior chamber. The furnace typically includes a first interior chamber in which a continuous casting mold is disposed and a withdrawal chamber which is separable from the first interior chamber to facilitate withdrawal of finished ingots therefrom while casting continues within the first chamber.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 8, 2014
    Assignee: RTI International Metals, Inc.
    Inventors: Michael P. Jacques, Kuang-O Yu
  • Publication number: 20140072824
    Abstract: A method allows microalloyed tubular steel to be produced economically, with operational reliability and with high quality.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBH
    Inventors: Bernd LINZER, Axel RIMNAC
  • Publication number: 20140010955
    Abstract: There is provided a method of producing an ?-Fe/R2TM14B-type nanocomposite magnet where R is 9 at. % or more but less than 11.76 at. % of Nd or Pr, TM is Fe or a substance in which a portion of Fe is substituted with Co of 20 at. % or less, and B is 6 to 8 at. %. A relatively long length nanocrystalline ribbon having a coercivity of 600 kA/m or more in which a content of flakes of less than 10 mm in length is 20% or less is coated with a polymeric film and then cut into an intended length, or punched into a specific shape.
    Type: Application
    Filed: August 13, 2012
    Publication date: January 9, 2014
    Applicant: MINEBEA CO., LTD.
    Inventors: Fumitoshi YAMASHITA, Shiho OHYA, Shinsaku NISHIMURA
  • Publication number: 20140001039
    Abstract: The purpose of the invention is to provide a sputtering target formed from a Cu—Ga alloy having a Ga composition of 29 at % or more. [Problem] Since a Cu—Ga alloy becomes a brittle ? phase-single phase structure when the Ga composition becomes 29 at % or more, it cannot be subject to processes such as rolling and forging. Accordingly, the crystal grain size of the cast structure must be small and uniform so that the cast structure can be used as is. [Solution] It is possible to produce a melted and cast Cu—Ga alloy sputtering target containing 29 to 42.6 at % of Ga, and remainder being Cu and unavoidable impurities by continuously solidifying the Cu—Ga alloy sputtering target under solidifying conditions of a constant cooling rate or higher, wherein an average crystal grain size of a sputter front face is 3 mm or less, and a cross section structure of the target is a columnar structure that has grown in a direction from the sputter front face toward a center plane which is parallel to a sputter face.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 2, 2014
    Applicant: JX NIPPON MINING & METALS CORPORATION
    Inventors: Tomoya Tamura, Masaru Sakamoto
  • Patent number: 8365806
    Abstract: A method and a device for producing a metal strip by continuous casting and rolling, in which a thin slab is initially cast into a casting machine, and is subsequently rolled in at least one rolling train using primary heat from the casting cycle. The cast thin slab is passed between the casting machine and the at least one rolling train and at least one holding oven as well as at least one induction oven. The holding oven and the induction oven are activated or deactivated according to a selected mode of operation, that is, a first mode of operation for the continuous production of the metal strip and a second mode of operation for the discontinuous production of the metal strip.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: February 5, 2013
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Dieter Rosenthal, Stephan Krämer, Jürgen Seidel, Frank Benfer
  • Patent number: 8347499
    Abstract: A method for producing a turbine casing for a rotating machine is provided. The casing is manufactured by a casting process, and is cast in two casing halves which are separated by a parting plane which passes axially through the turbine casing. Each casing half is first cast in one piece in each case, and each casing half is separated into at least two casing sections which are joined together for forming a casing half in each case.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: January 8, 2013
    Assignee: ALSTOM Technology Ltd
    Inventors: Beate Grzondziel, Michael Fischer
  • Publication number: 20120325425
    Abstract: The invention relates to a method for casting steel having a chromium content of more than 15 wt.-%, which is characterized in that the steel is cast in a horizontal strip casting system (1) comprising a melting furnace (2), foundry ladle (3) and conveyor belt (5) for receiving and for cooling a liquid steel strip flowing from the foundry ladle (3).
    Type: Application
    Filed: October 1, 2010
    Publication date: December 27, 2012
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Jochen Wans, Dieter Rosenthal, Jochen Schlüter, Christian Geerkens, Jörg Bausch
  • Patent number: 8322401
    Abstract: A method for making long metal rolled products by continuous casting, made by a continuous casting machine to two casting lines; shearing to size of the cast product; direct introduction of each segment, having an average temperature of at least 1000° C.-1150° C., into a maintenance and/or heating furnace that has a first and a second movement sections, each of the movement sections is disposed in axis respectively with one of the two casting lines to receive a respective segment; lateral transfer of each segment inside the furnace to dispose each segment in a third movement section disposed parallel and misaligned with respect to the first and the second movement sections and aligned to a rolling axis of a rolling line parallel and offset with respect to the two casting lines; and reduction of the section in a rolling mill defining said rolling axis.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: December 4, 2012
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventor: Gianpietro Benedetti
  • Patent number: 8322400
    Abstract: A method for making long metal rolled products by continuous casting at high hourly productivity, by a single casting machine, a product with a rectangular section; shearing to size of the cast product to define a segment of a length between 16 and 150 m and a weight between 10 and 100 tons; introduction of the segment, having an average temperature of at least 1000° C., into a maintenance and/or possible heating furnace having a first section for moving the cast product disposed in axis with the casting axis; lateral transfer of the segment inside the furnace to transfer the segment to a second section for moving the cast product disposed parallel and misaligned with respect to the first section and aligned with a rolling axis parallel and offset with respect to the casting axis; and reduction of the section in a rolling mill.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: December 4, 2012
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventor: Gianpietro Benedetti
  • Patent number: 8286691
    Abstract: A method and plant for making long metal rolled products, in which a continuous casting is provided by a single casting machine, defining a casting axis, to cast a product with a quadrangular or equivalent section, a reduction of the section in a rolling mill defining a rolling axis substantially coinciding with the casting axis, and a selective accumulation and maintenance at temperature of a plurality of segments of cast product sheared to size in a misaligned position with respect to the cast axis and/or the rolling axis, inside a maintenance box furnace, for a time correlated to a condition of temporary interruption of the reduction step, so as to allow continuity of the continuous casting step.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: October 16, 2012
    Assignee: Danieli & C. Officine Meccaniche Spa
    Inventor: Gianpietro Benedetti
  • Patent number: 8276647
    Abstract: A method and an apparatus for producing hot-rolled products in a combined casting-rolling installation. A method and a combined casting-rolling installation with which an uninterrupted continuous casting process can be maintained not only when there is a planned interruption to production but also when there is an unplanned interruption to production, occurring for example in a heating zone, a finishing mill train, a cooling zone or a storage device.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 2, 2012
    Assignee: Siemens Vai Metals Technologies GmbH
    Inventors: Gerald Hohenbichler, Michael Jesche, Daniel Ness, Wolfgang Peitl, Heinrich Puehringer, Alois Seilinger, Robert Andrew Shore
  • Patent number: 8210237
    Abstract: Equipment for manufacturing skin material of a clad material includes a casting apparatus which melts and mixes a metal for the skin material different from the core material in their component compositions, and casts the skin material; an ingot-cutting apparatus which cuts an ingot for skin material which is cast by the casting apparatus; and a conveying apparatus which conveys the ingot for skin material among each apparatus. The ingot-cutting apparatus is a slicing apparatus which slices the ingot for skin material into a predetermined thickness.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: July 3, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Masayuki Takada, Yasuhiro Nishioka, Tomohiro Nishimura, Kenji Tokuda, Toshiki Ueda, Makoto Morishita, Takashi Inaba, Akihiro Tsuruno, Yoshinori Kato, Fumihiro Koshigoe, Masaki Tanigawa, Naoki Sakashita, Kenji Harada, Jitsuto Shikata, Masanori Ikeda
  • Publication number: 20120093677
    Abstract: The invention relates to a method for producing a hot strip from transformation-free ferritic steel, wherein a melt is cast into a roughed strip and the latter is subsequently rolled into a hot strip. For this purpose, it is provided that the melt is cast in a horizontal strip casting facility under conditions of a calm flow and free of bending into a roughed strip in the range between 6 and 20 mm and is subsequently rolled into hot strip having a degree of deformation of at least 50%.
    Type: Application
    Filed: March 11, 2009
    Publication date: April 19, 2012
    Applicants: SMS SIEMAG AG, Salzgitter Flachstahl GMBH
    Inventors: Karl-Heinz Spitzer, Bianca Springub, Joachim Konrad, Hellfried Eichholz, Markus Schäperkötter
  • Publication number: 20120037330
    Abstract: A system and method for producing a metallic ingot using, for example, a VAR furnace, includes a primary crucible receiving a melted metal from a source of metal and collecting the melted metal to for a pool of melted metal, the primary crucible including an overflow lip, a secondary crucible receiving the melted metal from the overflow lip of the primary crucible, the secondary crucible being smaller than and electrically isolated from the primary crucible, and a withdrawal device withdrawing the molten metal, solidified by cooling, from the secondary crucible in the form of solidified ingots, wherein the solidified ingots have a smaller diameter than a diameter of the source of metal. A cutting device periodically cuts the withdrawn solidified ingots as they are withdrawn from the secondary crucible.
    Type: Application
    Filed: May 7, 2010
    Publication date: February 16, 2012
    Inventor: Michael K. Popper
  • Publication number: 20120018114
    Abstract: A method to make long rolled metal products, comprising the following steps: continuous casting, made by a continuous casting machine to two casting lines, each of the two casting lines casting a product with a square, rectangular or equivalent section, with a ratio between the larger side and the shorter side of the section comprised between 1 and 4; shearing to size of the cast product by each casting line so as to define a segment comprised between 16 and 150 m in length and comprised between 10 and 100 tons in weight; direct introduction of each segment, having an average temperature of at least 1000° C.-1150° C.
    Type: Application
    Filed: August 18, 2010
    Publication date: January 26, 2012
    Applicant: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventor: Gianpietro Benedetti
  • Publication number: 20110315340
    Abstract: A method to make long metal rolled products comprising the following steps: continuous casting at high hourly productivity, from 35 t/h to 200 t/h, done by a single casting machine, defining a casting axis, of a product with a rectangular or equivalent section, with a ratio between the larger side and the smaller side higher than or equal to 1.02 and less than or equal to 4; shearing to size of the cast product to define a segment of a length comprised between 16 and 150 m and with a weight comprised between 10 and 100 tons; introduction of the segment, having an average temperature of at least 1000° C.
    Type: Application
    Filed: August 18, 2010
    Publication date: December 29, 2011
    Applicant: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventor: Gianpietro Benedetti
  • Publication number: 20110308757
    Abstract: A method and plant for making long metal rolled products, in which a continuous casting is provided made by a single casting machine, defining a casting axis, to cast a product with a quadrangular or equivalent section, a reduction of the section in a rolling mill defining a rolling axis substantially coinciding with the casting axis, and a selective accumulation and maintenance at temperature of a plurality of segments of cast product sheared to size in a misaligned position with respect to the casting axis and/or the rolling axis, inside a maintenance box furnace, for a time correlated to a condition of temporary interruption of the reduction step, so as to allow continuity of the continuous casting step.
    Type: Application
    Filed: August 18, 2010
    Publication date: December 22, 2011
    Applicant: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventor: Gianpietro Benedetti
  • Publication number: 20110253338
    Abstract: Equipment for manufacturing skin material of a clad material includes a casting apparatus which melts and mixes a metal for the skin material different from the core material in their component compositions, and casts the skin material; an ingot-cutting apparatus which cuts an ingot for skin material which is cast by the casting apparatus; and a conveying apparatus which conveys the ingot for skin material among each apparatus. The ingot-cutting apparatus is a slicing apparatus which slices the ingot for skin material into a predetermined thickness.
    Type: Application
    Filed: June 15, 2011
    Publication date: October 20, 2011
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Masayuki TAKADA, Yasuhiro NISHIOKA, Tomohiro NISHIMURA, Kenji TOKUDA, Toshiki UEDA, Makoto MORISHITA, Takashi INABA, Akihiro TSURUNO, Yoshinori KATO, Fumihiro KOSHIGOE, Masaki TANIGAWA, Naoki SAKASHITA, Kenji HARADA, Jitsuto SHIKATA, Masanori IKEDA
  • Patent number: 8025092
    Abstract: A process for the manufacturing of steel strips with solution of continuity is described, comprising a continuous casting step for thin stabs with a high “mass flow”, a shearing step and subsequent heating in furnace, followed by a multiple stand rolling step, wherein the average temperature of the product at the inlet of the rolling is higher than the surface temperature, which is equal to at least 1100° C., lower than that measured in the inner central area by about 100° C. A plant is also described for the accomplishment of such process, wherein at the inlet of a furnace (25; 35), possibly of the induction type, combined with a temperature maintaining tunnel (36) a shear (3) is provided for, cutting into pieces (24; 34) a slab (22; 32) coming from continuous casting (21; 31), wherein the distance between the outlet of said continuous casting and the inlet into the finishing rolling mill (29; 39) is not greater than 100 m.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: September 27, 2011
    Inventor: Giovanni Arvedi
  • Publication number: 20110127003
    Abstract: A method for producing a light alloy vehicle wheel in which a casting material is forged to produce a rim-integrated vehicle wheel, the method comprising: a casting step of preparing a flat, square billet by continuous casting or semi-continuous casting using a mold whose mold outlet port is formed into a substantially rectangular shape; a cutting step of cutting the flat, square billet at a right angle to a casting direction to flatly form a rectangular casting material in the casting direction; a primary forging step of pressing down the rectangular casting material from a flat surface side of the rectangular casting material to forge the rectangular casting material into a disc shape; and a secondary forging step of forging the disc-shaped forging product into a rough wheel shape having a disc portion and a rim portion.
    Type: Application
    Filed: October 28, 2010
    Publication date: June 2, 2011
    Applicant: RAYS ENGINEERING CO., LTD
    Inventor: Shujiro Inatani
  • Patent number: 7942191
    Abstract: A method for producing a wide steel strip using thin slab continuous casting and rolling by the following steps a) casting a molten steel into a thin slab having a thickness of between 50 and 90 mm; b) cutting; c) soaking; d) heating by electromagnetic induction; e) descaling; f) rolling; g) cooling with laminar flow; and h) coiling. The method can effectively control the solution and precipitation of carbon, nitrogen, and sulfide in steel with a low cost. The process is easy and flexible, and steel can be produced in a wide range of categories. Further provided is a system for producing a wide steel strip with thin slab continuous casting and rolling.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: May 17, 2011
    Assignee: Wuhan Iron and Steel (Group) Corp
    Inventors: Chao Zhang, Zhonghan Luo, Zemin Fang, Jionghui Mao, Shenglin Chen, Ruoping Wang, Xiangxin Wang
  • Publication number: 20110056649
    Abstract: A method and an apparatus for producing hot-rolled products in a combined casting-rolling installation. A method and a combined casting-rolling installation with which an uninterrupted continuous casting process can be maintained not only when there is a planned interruption to production but also when there is an unplanned interruption to production, occurring for example in a heating zone, a finishing mill train, a cooling zone or a storage device.
    Type: Application
    Filed: March 4, 2009
    Publication date: March 10, 2011
    Inventors: Gerald Hohenbichler, Michael Jesche, Daniel Ness, Wolfgang Peitl, Heinrich Puehringer, Alois Seilinger, Robert Andrew Shore
  • Patent number: 7874346
    Abstract: A method for manufacturing non lead added anode zinc material for manganese dry batteries comprising compounding a zinc alloy by melting zinc, 0.1 mass % or more and 0.7 mass % or less of bismuth and other impurity elements inevitably contained in zinc in a melting furnace; casting the compounded molten zinc alloy to a molded material in the form of a band or in the form of a bar; rolling the molded material in band form to form a zinc alloy sheet; and punching the rolled zinc alloy sheet in a designated thickness into a designated shape.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: January 25, 2011
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Mutsuhiro Maeda, Kazunari Kobayashi, Yuk Fai Lau
  • Publication number: 20100326619
    Abstract: The present invention is directed to an aluminum alloy including aluminum as a basic component, silicon, copper, magnesium, iron, manganese, zinc, nickel and the like in a predetermined composition ratio, and a method of manufacturing of a vehicle cylinder liner having excellent wear resistance and heat resistance using the aluminum alloy. The method of manufacturing a vehicle cylinder liner includes the steps of: adding 50˜500 ppm of phosphorus (P) to the aluminum alloy while maintaining a temperature of the aluminum alloy at 700˜800° C. in a holding furnace, stabilizing the molten aluminum alloy including the phosphorus (P) for 30˜60 minutes to reform the molten aluminum alloy, and then continuous-casting the reformed molten aluminum alloy to form a round bar; hot-forging the round bar to forming a cylindrical liner; and machining an internal surface of the cylinder liner, with which a reciprocating piston comes into contact, to allow silicon particles to protrude.
    Type: Application
    Filed: December 7, 2009
    Publication date: December 30, 2010
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Young Gi Kim, Seok Jun Kim, Hoon Mo Park
  • Publication number: 20100307712
    Abstract: A process for producing a copper alloy material from a copper alloy of a precipitation reinforced type, which contains a process to perform individually a dissolution of a pure copper and a dissolution of an additional element or a mother alloy containing the same, comprises the steps of: melting an element and/or a mother alloy at a same time, that is selected from a Ni, a Co, an Si, a Ni—Cu mother alloy, a Co—Cu mother alloy, an Si—Cu mother alloy, a Ni—Si—Cu mother alloy, and a Co—Si—Cu mother alloy with combining therebetween, and melting thereof with an assistance of a generation of a heat of mixing, in a case of forming a high density melt containing at least either one of the Ni or the Co, and the Si, as high density thereof; forming the high density melt as a content of the Ni to be 80 mass % at maximum; and forming an alloy molten metal having a predetermined component and concentration, by adding the melt into a pure copper molten metal to be supplied from another melting furnace.
    Type: Application
    Filed: November 28, 2008
    Publication date: December 9, 2010
    Inventors: Hirokazu Yoshida, Tsukasa Takazawa, Toshio Abe, Shuji Tomimatsu
  • Publication number: 20100218911
    Abstract: A method for producing a wide steel strip using thin slab continuous casting and rolling by the following steps a) casting a molten steel into a thin slab having a thickness of between 50 and 90 mm; b) cutting; c) soaking; d) heating by electromagnetic induction; e) descaling; f) rolling; g) cooling with laminar flow; and h) coiling. The method can effectively control the solution and precipitation of carbon, nitrogen, and sulfide in steel with a low cost. The process is easy and flexible, and steel can be produced in a wide range of categories. Further provided is a system for producing a wide steel strip with thin slab continuous casting and rolling.
    Type: Application
    Filed: May 14, 2010
    Publication date: September 2, 2010
    Inventors: Chao ZHANG, Zhonghan LUO, Zemin FANG, Jionghui MAO, Shenglin CHEN, Ruoping WANG, Xiangxin WANG
  • Patent number: 7575041
    Abstract: Horizontally continuously cast aluminum alloy rods excellent in quality are efficiently manufactured using a melting/holding furnace (101) to produce molten aluminum alloy, a molten-metal treatment apparatus (201) to remove aluminum oxide and hydrogen gas from the molten aluminum alloy, a horizontally continuously casting apparatus (301) to cast the treated molten aluminum alloy into horizontally continuously cast aluminum alloy rods, a cutting machine (408A, 408B) to cut to a standard length the cast rods, a first straightening apparatus (1001) to straighten bend of the cut rods, a peeling apparatus (1101) to peel skin portions of the straightened rods, a nondestructive inspection apparatus (1401) to inspect surface and internal portions of the peeled rods, a sorting apparatus (1501) to sort the inspected rods judged non-defective based on results of the nondestructive inspection step and a packing apparatus to pack the sorted rods, and continuously using at least the first straightening apparatus (1001) et
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 18, 2009
    Assignee: Showda Denko K.K.
    Inventors: Yasuhide Odashima, Satoshi Fujii, Shigeru Yanagimoto
  • Publication number: 20090178778
    Abstract: The invention relates to a method for producing a metal strip (1) by continuous casting. According to said method, a slab (3), preferably a thin slab, is initially cast in a casting machine (2), said slab being deviated from a vertical direction (V) into a horizontal direction (H), and in the direction of transport (F) of the slab (3) arranged behind the casting machine (2), the slab (3) is subjected to a milling operation in a milling machine (4) and at least one milling operation in at least one rolling train (5, 6). According to the invention, in order to improve the quality of the strip, the rolling and milling operations are carried out immediately after the slab (3) is cast in the casting machine (2). The rolling operation is divided into at least two partial-rolling operations in at least one first rolling train (5) and one second rolling train (6). The milling operation in the milling machine (4) is carried out directly prior to the first rolling operation or between both rolling operations.
    Type: Application
    Filed: May 23, 2007
    Publication date: July 16, 2009
    Inventors: Jürgen Seidel, Peter Sudau
  • Publication number: 20090107589
    Abstract: Disclosed are a method and a production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefor, the melt (2) is cast into a copper strip (4) in a vertical and/or horizontal continuous strip casting process (3), and the hot copper strip (4) is cleaned by milling (5) the top and bottom face (5a, 5b) thereof, is subjected to a cold rolling process (6) and is prepared for shipping, or is subjected to an inspection (12) and then prepared for shipping after being annealed (7), pickled (8), washed (9), dried (10), and optionally temper rolled (11).
    Type: Application
    Filed: July 6, 2006
    Publication date: April 30, 2009
    Applicant: SMS DEMAG AG
    Inventors: Hans-Peter Richter, Ludwig Weingarten, Hartmut Pawelski, Rainer Link, Wolfheinrich Muller
  • Publication number: 20080223544
    Abstract: A process for the manufacturing of steel strips with solution of continuity is described, comprising a continuous casting step for thin stabs with a high “mass flow”, a shearing step and subsequent heating in furnace, followed by a multiple stand rolling step, wherein the average temperature of the product at the inlet of the rolling is higher than the surface temperature, which is equal to at least 1100° C., lower than that measured in the inner central area by about 100° C. A plant is also described for the accomplishment of such process, wherein at the inlet of a furnace (25; 35), possibly of the induction type, combined with a temperature maintaining tunnel (36) a shear (3) is provided for, cutting into pieces (24; 34) a slab (22; 32) coming from continuous casting (21; 31), wherein the distance between the outlet of said continuous casting and the inlet into the finishing rolling mill (29; 39) is not greater than 100 m.
    Type: Application
    Filed: April 14, 2008
    Publication date: September 18, 2008
    Inventor: Giovanni ARVEDI
  • Publication number: 20080210401
    Abstract: A partial SEN capable of having flow diverter parts installed therein, and a method of using the SEN in a continuous casting system are disclosed. The partial SEN includes a hollow distribution zone at a bottom portion of the SEN which is designed to allow the installation of at least two different types of flow diverter parts, one type of flow diverter parts for a first type of caster mold, and a second type of flow diverter parts for a second type of caster mold. The design of the flow diverter parts and the resulting angles achieved when the flow diverter parts are installed in the partial SEN are matched to a caster mold such that the flow characteristics of molten steel exiting the SEN into the caster mold during continuous casting operation are of a desired and optimal nature to prevent various types of casting defects.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 4, 2008
    Applicant: NUCOR CORPORATION
    Inventors: Robert C. Hanna, Kirby Joe Teeter
  • Publication number: 20080179037
    Abstract: The present invention includes a method for casting a silicon ingot by using a continuous casting method by means of an electromagnetic induction, and a method for cutting the silicon ingot as a starting material into plural silicon blocks. When the silicon blocks with a square section are cut out, the sectional shape of the silicon ingot is set to be rectangular. Not less than 6 pieces of equal-sized silicon blocks are cut out from the silicon ingot, thereby enabling to enhance the manufacturing efficiency to a great extent. And since the amount of excision of the edge per silicon block is reduced, the production yield can be enhanced. Further, since the proportion of columnar crystals with large grain size inside the ingot can be increased, it becomes possible to enhance the conversion efficiency of a solar battery using the silicon block as a substrate material.
    Type: Application
    Filed: December 21, 2007
    Publication date: July 31, 2008
    Inventors: Mitsuo Yoshihara, Kenichi Sasatani
  • Publication number: 20080179036
    Abstract: A steel slab caster having a mold with movable opposing mold faces, and methods of using the steel slab caster for casting steel slabs. The movable opposing mold faces may be laterally positioned with respect to each other in a predefined configuration. Molten steel may be introduced into the mold of the slab caster. The lateral positions and/or pressures of the opposing mold faces are monitored at two vertically spaced locations on at least one of the movable mold faces of the opposing mold faces as casting proceeds, and data is generated in response to the monitoring. The opposing movable mold faces may be adjusted in response to the generated data.
    Type: Application
    Filed: January 26, 2007
    Publication date: July 31, 2008
    Applicant: NUCOR CORPORATION
    Inventors: John Carlton ELINBURG, Jonathon David OTTS, George GURLEY, David Walton PARSLEY
  • Publication number: 20080164003
    Abstract: The production of steels with high contents of manganese (Mn), aluminum (Al), and silicon (Si) with TWIP properties (Twinning-Induced Plasticity) by continuous casting is considered difficult or impossible in the present state of the art for various reasons. These reasons include low strength of the strand shell during solidification due to intense microsegregation of Mn, high strength at relatively low temperatures, reactions of the aluminum in the steel with the flux powder, macrosegregation, depletion of the alloying elements near the surface, and oxidation of the grain boundaries during the reheating of slabs in the pusher furnace. Therefore, in accordance with the invention, successively arranged process steps are used to cast light gauge steel with a given chemical composition of 15-27% Mn, 1-6% Al, 1-6% Si, ?0.
    Type: Application
    Filed: March 3, 2006
    Publication date: July 10, 2008
    Inventors: Jens Kempken, Markus Reifferscheid, Albrecht Girgensohn
  • Patent number: 7318267
    Abstract: Arranged are a twin- or single-roll continuous casting machine supplied with molten metal from a tundish arranged above so as to continuously cast a strip with a predetermined width, a trimmer arranged downstream of the continuous casting machine to trim widthwise edges of the strip and a rolling mill arranged downstream of the trimmer.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: January 15, 2008
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventor: Hisashi Honjou
  • Patent number: 7028750
    Abstract: The invention relates to an apparatus for continuous casting of metal billets comprising a horizontal casting mold having and inlet end and an outlet end. It includes a feed trough for feeding molten metal to the mold inlet end and a horizontal conveyor for receiving a cast billet from the mold outlet end. A moveable cutting saw is operable to move synchronously with the conveyor for cutting a continuous billet into lengths while supported on the conveyor. The billet is resiliently supported and the saw mechanism is isolated so as to minimize transmission of low and high frequency vibrations from the cutting and conveying operations to the mold.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: April 18, 2006
    Assignee: Novelis, Inc.
    Inventors: Wade Lee Bowles, James Borman, Jack Hamby, Michael Kosmicki, John Steven Tingey, John David Treffry
  • Publication number: 20040226680
    Abstract: An in-line method of producing steel using a continuous caster includes forming a continuous strand of steel from the continuous caster and severing a slab from the continuous strand. An angle between a front face or a rear face of the slab and a line perpendicular to a top surface or a bottom surface of the slab is between about 10° and about 45°. Alternatively, the angle between the front face or the rear face and the line perpendicular to the top surface or the bottom surface is between about 15° and about 35° or between about 20° and about 25°. Primary scale is then removed from the slab with a descaler prior to rolling the slab to a desired thickness. A first waterjet descaler descales only one of the front and the rear faces and only one of the top and bottom surfaces, and a second waterjet descaler descales only the other of the front and the rear faces and only the other of the top and bottom surfaces.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 18, 2004
    Applicant: IPSCO STEEL INC.
    Inventors: Dennis R. Dixon, Andrew P. Goodman
  • Patent number: 6698498
    Abstract: Twin roll caster produces cast steel strip that passes in a transit path through pinch roll stand and optional hot rolling mill and runout table to a coiling station which has a pair of switchable coilers. A strip shear located in advance of the coiling station is operable to sever strip into discrete lengths which can be diverted by setting deflectors to allow the severed lengths to pass across a runout table to a scrap bin. The strip may be thus severed and diverted to scrap on development of strip defects or malfunctioning of equipment without stopping continuous casting and the strip redirected to the coiling station when the problem is rectified.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: March 2, 2004
    Assignee: Castrip, LLC
    Inventors: John Albert Ziegelaar, Heiji Kato
  • Patent number: 6668908
    Abstract: A method of torch-cutting steel, typically slab steel, produced by continuous casting wherein a cutting torch is fueled with propylene and oxygen and wherein the fuel is mixed and combusted on the surface of the slab thus permitting the cutting of the slab to proceed contemporaneously with the production of slab steel by the continuos casting process.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 30, 2003
    Assignee: Wright Brothers, Inc.
    Inventors: Michael F. Pinson, Charles C. Wright
  • Publication number: 20030196777
    Abstract: A method of torch-cutting steel, typically slab steel, produced by continuous casting wherein a cutting torch is fueled with propylene and oxygen and wherein the fuel is mixed and combusted on the surface of the slab thus permitting the cutting of the slab to proceed contemporaneously with the production of slab steel by the continues casting process.
    Type: Application
    Filed: April 19, 2002
    Publication date: October 23, 2003
    Inventors: Michael F. Pinson, Charles C. Wright
  • Patent number: 6153082
    Abstract: Wrought copper cathode starting sheets for use in the electrolytic production of copper made preferably by a continuous casting and rolling process are provided. Refined copper is melted in a shaft furnace and continuously cast preferably using a twin belt horizontal caster and straight line rolled to reduce the thickness of the casting by about 25% to 98% to produce a sheet having a thickness up to about 0.123 inch. The continuous sheet is cut after the rolling process from uncoiled sheet into discrete rectangular shapes suitable for use as a starting sheet, as a starting sheet blank or other metal sheet uses such as cladding and roofing.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: November 28, 2000
    Assignee: ASARCO Incorporated
    Inventors: Melvin G. DeBord, Harry E. Tallert, Michael D. Owsley
  • Patent number: 5927376
    Abstract: Method and device to shear slabs arriving from a continuous casting plant, where the slabs (13) leaving the continuous casting plant are sent to be sheared to size so as to obtain sections which are speeded up and sent for rolling, there being included, immediately upstream of the shearing assembly, a pinch roll assembly comprising at least two opposite rolls (14a, 14b), the shearing assembly comprising shearing elements (11, 12) coordinated and arranged on opposite sides with respect to the feeding plane of the slabs (13) during the shearing step, the shearing elements (11, 12) acting on the leading end (13a) of the slab (13) in such a way as to cause the leading end (13a) to rise up in a controlled manner by means of lifting the lower shearing element (12) to a height which is at least more than the feeding plane of the slab (13), the opposite rolls (14a, 14b) of the pinch roll assembly arranged immediately upstream of the shearing assembly (10) being maintained closed in contact with the slabs (13) during
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: July 27, 1999
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventor: Fausto Drigani
  • Patent number: 5829117
    Abstract: A hot saw cutting type continuous rolling method comprises casting two strand billets continuously; cutting the billets to predetermined length by hot saws; directly feeding billet portions obtained by cutting onto a rolling line via a line connecting device; continuously welding and joining the billets portions by a flash butt welder to form a continuous billet; grinding and removing burrs at the welded portion of the continuous billet by a grinding machine; and continuously rolling the billet by a rolling mill group, after heating the continuous billet to a higher temperature by an induction heater. A hot saw cutting type continuous rolling apparatus is provided for performing the above-described method.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: November 3, 1998
    Assignee: NKK Corporation
    Inventors: Susumu Okawa, Giichi Matsuo
  • Patent number: 5632325
    Abstract: A process and an apparatus for strand-casting near to final size cast formats from non-ferrous metals for the purpose of further cold working, especially strips, bars or tubes of copper or copper alloys. The process includes continuously casting the melt in a vertical mold to form a vertical strand, withdrawing the solidified strand from the mold in a centrally guided manner and directly threading into a surface treatment machine, removing the surface of the strand, laterally cutting the surface-finished strand in a predetermined manner, and removing the cut strand pieces from the machine. The machine for carrying out the process has a base frame which is connected to a foundation and on which a withdrawal device, a surface treatment unit, a cross-cutting device, and a conveying device are provided in line.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: May 27, 1997
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Eberhard Fischer, Helmut Maag, Erling Roller
  • Patent number: 5611128
    Abstract: A continuous cast positive grid of lead having substantially improved corrosion resistance and decreased growth in a positive plate of a lead-acid battery and a continuous cast negative grid of lead having substantially increased tensile strength for a lead-acid battery. A web of lead is continuously cast with a series of succeeding grid blanks of uniform thickness which are cold worked to reduce the positive grid thickness by at least 3:1 and the negative grid thickness in the range of about 1.5:1 to 2.8:1 preferably by passing through the nip of each of a plurality of successive compression rollers. Electro-chemically active paste is applied to the reduced webs, preferably flash dried, and individual pasted grids are cut from the reduced and pasted webs to provide positive plates and negative plates for a lead-acid battery.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 18, 1997
    Assignee: Wirtz Manufacturing Co., Inc.
    Inventor: John O. Wirtz
  • Patent number: 5597030
    Abstract: Apparatus for removing burrs from flame cut steel slabs having a rotating shaft and burr knocking members loosely mounted on the shaft for impact removal of the burrs.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: January 28, 1997
    Assignee: Gega Corporation
    Inventors: Horst K. Lotz, Mattias Lotz
  • Patent number: 5464053
    Abstract: A process for semiliquid casting ingots from which to produce high-mechanical-performance die castings, whereby a metal alloy in the form of pigs and containing ceramic particles is smelted in a smelting furnace, transferred to a ladle, degassed, and fed into a pressurized furnace from which it is cast in the semiliquid state by feeding it at the solidification stage and under laminar flow conditions into a static mixer. At the outlet of the mixer the rheocast material is collected under laminar flow conditions, possibly with the interposition of a siphon type collecting tank and with protective gas shielding, through a cooled metal die, and solidified into a single billet. The billet is then guided by rollers past a saw and cut into pieces from which to obtain ingots of desired weight and size.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: November 7, 1995
    Assignee: Weber S.r.l.
    Inventor: Renzo Moschini