Inorganic Patents (Class 148/26)
  • Patent number: 11225695
    Abstract: Provided is a dephosphorizing flux configured to adjust a phosphorous component contained in molten steel, the dephosphorizing flux includes a main material including BaCO3 and a supplementary material, wherein the supplementary material includes a first material containing either of NaHCO3 or Na2CO3 and a second material containing CaF2. Thus, in accordance with a dephosphorizing flux and a method for preparing the same of the present disclosure, the plugging of a lower blowing nozzle that blows a carrier gas during dephosphorization may be prevented while improving a dephosphorization ratio. In addition, since environment polluting substances are not used as in conventional arts, environment pollution risk may be reduced, and the cost burden due to the facility for pollution prevention and harmful substance management may be alleviated.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 18, 2022
    Assignee: POSCO
    Inventors: Woong Hee Han, Chong Tae Ahn, Jun Jeong Beak, Min Ho Song, Soo Chang Kang
  • Patent number: 10792769
    Abstract: A welding flux for duplex stainless steel is used to solve the problem of insufficient penetration depth of a weld formed between two jointed workpieces when workpieces with a thickness above 3 mm is joined by TIG welding. The welding flux for duplex stainless steel includes 25-35 wt % of SiO2, 20-25 wt % of Cr2O3, 10-20 wt % of MoO3, 10-15 wt % of NiO, 5-10 wt % of FeO, 5-10 wt % of Co3O4, 5-10 wt % of MnO2 and 3-5 wt % of CuO.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 6, 2020
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventor: Kuang-Hung Tseng
  • Patent number: 10759481
    Abstract: A sprocket wheel has an annular shape. The sprocket wheel has a plurality of projections formed on an outer peripheral surface for transmitting a driving force to a track. The sprocket wheel includes a base made of a first metal, and an overlay including a second metal that covers the base so as to constitute at least a part of the outer peripheral surface. The overlay is formed with a metallic structure that is continuous in the circumferential direction so as to connect between adjacent ones of the projections.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 1, 2020
    Assignee: KOMATSU LTD.
    Inventors: Masayuki Ohishi, Masaharu Amano
  • Patent number: 10730129
    Abstract: A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal, and hard particles dispersed in the matrix. The surface of the overlay is a forged surface. The hard particles located in an overlay surface region within an average particle diameter of the hard particles from the surface of the overlay are arranged side by side while being embedded in the overlay.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 4, 2020
    Assignee: KOMATSU LTD.
    Inventors: Masayuki Ohishi, Masaharu Amano
  • Patent number: 10724305
    Abstract: Chemical methods, optionally in combination with physical methods, may be used to increase the strength of the bond formed by a braze material between a polycrystalline material and a hard composite. Such polycrystalline materials brazed to hard composites may be found in various wellbore tools include drill bit cutters. An exemplary method may include forming a bonding layer on a bonding surface of a polycrystalline material body that comprises a hard material, the bonding surface opposing a contact surface of the polycrystalline material body, and the bonding layer substantially formed by a [111] crystal structure of the hard material, a [100] crystal structure of the hard material, or a combination thereof; and brazing the bonding layer to a hard composite using a braze material.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 28, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gagan Saini, Qi Liang
  • Patent number: 10682731
    Abstract: The invention described herein pertains generally to a process for making boric acid free flux compositions in which boric acid and/or borax is substituted with a molar equivalent amount of potassium tetraborate tetrahydrate. In some embodiments, a phthalocyanine pigment is used to affect a color change at activation temperature.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: June 16, 2020
    Assignee: Lincoln Global, Inc.
    Inventor: Robert A. Howard
  • Patent number: 10668576
    Abstract: The invention described herein pertains generally to boric acid free flux composition in which boric acid and/or borax is substituted with a molar equivalent amount of potassium tetraborate tetrahydrate. In some embodiments, a phthalocyanine pigment is used to effect a color change at activation temperature.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: June 2, 2020
    Assignee: Lincoln Global, Inc.
    Inventor: Robert A. Howard
  • Patent number: 10668574
    Abstract: The present applicant presents a structure intended for high temperature use above 30° C. comprising multiple components having metal-to-metal or metal-to-ceramic contacting surfaces wherein the surfaces are joined by a braze composed of pure aluminum. Anticipated devices include but are not limited to igniters as well as electronic applications in the automotive and aerospace industries.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: June 2, 2020
    Assignee: MHI Health Devices, LLC
    Inventor: Jainagesh Sekhar
  • Patent number: 10406629
    Abstract: To provide a method for joining metal members, in which joining can be performed at relatively lower temperature, and deformation caused when joining the metal members can be reduced. The present invention includes a step of joining a plurality of metal members with a sheet sandwiched between the joining surfaces of the plurality of metal members, wherein the sheet is obtained by forming an organic acid metal salt film on the surface of a metal sheet; wherein aluminum or an aluminum alloy is used as the metal members, and a sheet made of any one of zinc, copper and magnesium is used as the metal sheet.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 10, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Shinji Koyama, Xiaojuan Ma, Tatsunori Tsunetou, Tsukasa Akiyama, Yohei Tomikawa
  • Patent number: 10377674
    Abstract: Disclosed are compositions containing at least 5 wt. % of a silicate based on the total weight of the composition, wherein the silicate is an alkali metal silicate and/or an alkaline earth metal silicate, at least 20 wt. % of one or more calcium oxygenates; and water to 100 wt. %.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 13, 2019
    Inventor: Carolyn Dry
  • Patent number: 10272528
    Abstract: Provided is a flux for submerged arc welding that has good welding workability and can reduce the diffusion hydrogen content in a weld metal using either an AC or a DC welding power source. The flux includes Al2O3: 15 to 35% by mass; SiO2: 10 to 30% by mass; MgO: 10 to 25% by mass; F expressed in terms of CaF2: 10 to 25% by mass; Mn expressed in terms of MnO: 3 to 20% by mass; Na expressed in terms of Na2O and/or K expressed in terms of K2O: 0.5 to 4.5% by mass in total; Fe expressed in terms of FeO: 0.5 to 8% by mass; and CaO: 6% by mass or less. A water-soluble SiO2 in the flux is less than 1% by mass. In addition, the flux has a composition that satisfies the following formula: 0.2?[Mg/O]/([Al2O3]+[MnO])?0.8.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: April 30, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Satoru Kano, Makoto Ota
  • Patent number: 10201880
    Abstract: There is provided a welding material used for welding of SUS310 stainless steel base metal that contains at least one of Nb and V and is excellent in intergranular corrosion resistance, the chemical composition of the welding material consisting, by mass percent, of C: 0.02% or less, Si: 2% or less, Mn: 2% or less, Cr: 26 to 50%, N: 0.15% or less, P: 0.02% or less, S: 0.002% or less, and Ni: a content percentage satisfying [5?Ni?Cr?14], and the balance of Fe and impurities. Also, there is provided a welding joint of an austenitic stainless steel, which consists of the base metal and a weld metal formed by using the welding material.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 12, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Takahiro Osuki, Kiyoko Takeda, Tetsuo Yokoyama, Hiroyuki Anada, Masatoshi Toyoda
  • Patent number: 10160063
    Abstract: A method includes disposing a braze material adjacent a first body and a second body; heating the braze material and forming a transient liquid phase; and transforming the transient liquid phase to a solid phase and forming a bond between the first body and the second body. The braze material includes copper, silver, zinc, magnesium, and at least one material selected from the group consisting of nickel, tin, cobalt, iron, phosphorous, indium, lead, antimony, cadmium, and bismuth.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: December 25, 2018
    Assignee: Baker Hughes Incorporated
    Inventors: Wei Chen, Marc W. Bird, John H. Stevens
  • Patent number: 10034418
    Abstract: Conductive concrete mixtures for shotcrete applications are described that are configured to provide varied EM shielding and reflect and/or absorb, for instance, EM waves propagating through the conductive concrete mixture, while providing flowability (e.g., fluidity) for shotcrete applications. The conductive concrete mixtures include cement, aggregate, water, metallic conductive material, and conductive carbon particles and magnetic material. The metallic conductive material may include steel fibers and/or shavings having sizes suitable for application through shotcrete nozzles/applicators, and the magnetic material may include a taconite aggregate, such as taconite sand.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 24, 2018
    Assignee: NUtech Ventures
    Inventors: Christopher Tuan, Lim Nguyen
  • Patent number: 9981350
    Abstract: The present disclosure provides a welding flux used for austenitic stainless steel, which includes 20-40 wt. % SiC, 20-30 wt. % SiO2, 15-25 wt. % MoO3, 2-15 wt. % TiO2, 2-10 wt. % NiO, and 1-5 wt. % MgO. As such, the welding flux forms a soundness weld with high D/W ratio and surface hardness.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: May 29, 2018
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventor: Kuang-Hung Tseng
  • Patent number: 9902623
    Abstract: Provided are a macroporous titanium compound monolith and a production method thereof, the macroporous titanium compound monolith having a framework that is composed of a titanium compound other than titanium dioxide, having controlled macropores, and having electron conductivity, the titanium compound being oxygen-deficient titanium oxide, titanium oxynitride, or titanium nitride.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: February 27, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroshi Kageyama, Kazuki Nakanishi, Yoji Kobayashi, Atsushi Kitada, George Hasegawa
  • Patent number: 9850384
    Abstract: The present invention relates to transparent, electrically semiconducting interference pigments having high color strength, and in particular to flake-form interference pigments which comprise an oxygen-deficient layer of TiO2-x, to a process for the preparation of such pigments, and to the use of the pigments prepared in this way.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 26, 2017
    Assignee: MERCK PATENT GMBH
    Inventor: Reinhold Rueger
  • Patent number: 9833863
    Abstract: A welding additive for electric arc welding and laser beam welding of mixed joins composed of austenitic and high-manganese-containing and ferritic steel, where the high-manganese-containing steel has a manganese content of at least 7-30% by weight includes the following alloy elements in % by weight: C 0.04-1.0; Mn 7-30; Si?6; Al?4; Mo?2; Ti?0.5; Zr 0.01-01; B 0.001-0.01; P<0.005; S<0.002; N<0.008; balance iron and unavoidable steel accompanying elements.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: December 5, 2017
    Assignee: Salzgitter Flachstahl GmbH
    Inventors: Wilko Flügge, Matthias Höfemann, Bianca Springub, Zacharias Georgeou
  • Patent number: 9775252
    Abstract: A method of soldering a shape memory alloy (SMA) element to a component includes positioning a tinned end of the SMA element with respect to a surface of the component, and then directly soldering the tinned end to the surface using solder material having a low liquidus temperature of 500° F. or less when an oxide layer is not present on the SMA element. The end may be soldered using lead-based solder material at a higher temperature when an oxide layer is present. The end may be tinned with flux material containing phosphoric acid or tin fluoride prior to soldering the SMA element. The SMA element may be submersed in an acid bath to remove the oxide layer. The solder material may contain tin and silver, antimony, or zinc, or other materials sufficient for achieving the low liquidus temperature. Heat penetrating the SMA element is controlled to protect shape memory abilities.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 26, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Nicholas W Pinto, IV, Nancy L. Johnson, Nicholas P. Irish, Michael P. Balogh, Daad B Haddad
  • Patent number: 9644865
    Abstract: A solar receiver system includes a panel mounted to a multiple of standoffs such that the panel is spaced away from the support structure to provide convective cooling.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: May 9, 2017
    Assignee: SOLARRESERVE TECHNOLOGY, LLC
    Inventor: Johnny Mandel
  • Patent number: 9579752
    Abstract: Aluminum parts, e.g., heat exchangers, with improved resistance towards corrosion caused by contact with stationary water or aqueous compositions such as cooling water can be obtained by addition of Li compounds in specific amounts to the flux used for brazing the parts. LiF and especially Li fluoroaluminates are very suitable. The flux and the Li salt can be dispersed in water or an aqueous composition separately.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: February 28, 2017
    Assignee: SOLVAY FLUOR GMBH
    Inventors: Andreas Becker, Thomas Born, Alfred Ottmann, Hans-Walter Swidersky, Placido Garcia-Juan
  • Patent number: 9393644
    Abstract: A metal cladding process utilizing a feed material (66) formed as a hollow sheath (68) containing a powdered core (70) including powdered metal and powdered flux material. The powdered metal and flux may have overlapping mesh size ranges. The sheath may be an extrudable subset of elements of a desired superalloy cladding material, with the powdered metal and powdered flux materials complementing the sheath to form the desired superalloy material when melted. The powdered metal may include an excess of titanium to compensate for a reaction of titanium with oxygen or carbon dioxide in a shielding gas. Heat for melting may be provided by an energy beam (64) or by utilizing the feed material as an electrode in a cold metal arc welding torch (54).
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: July 19, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Gerald J. Bruck, Ahmed Kamel
  • Patent number: 9365907
    Abstract: Crushed flux lime to be used in a BOF converter is processed to minimize waste dust, obviate environmental complications caused by high pH in waste water, and to utilize a very high percentage of the original crushed lime for useful products. The crushed flux lime is screened to provide a fine grain fraction and a modified flux lime fraction. Only a small percentage of the modified flux lime fraction is dust which may be removed in a dust collection system, and the modified flux lime fraction is then passed to the BOF converter. The fine grain fraction is made into a highly fluidized lime of very small dimensions by pulverizing it further in the presence of a fluidizing agent.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 14, 2016
    Assignee: Almamet USA, Inc.
    Inventor: Frank Herwig
  • Patent number: 9322073
    Abstract: Crushed flux lime to be used in a BOF converter is processed to minimize waste dust, obviate environmental complications caused by high pH in waste water, and to utilize a very high percentage of the original crushed lime for useful products. The crushed flux lime is screened to provide a fine grain fraction and a modified flux lime fraction. Only a small percentage of the modified flux lime fraction is dust which may be removed in a dust collection system, and the modified flux lime fraction is then passed to the BOF converter. The fine grain fraction is made into a highly fluidized lime of very small dimensions by pulverizing it further in the presence of a fluidizing agent.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 26, 2016
    Assignee: Almamet USA, Inc.
    Inventor: Frank Herwig
  • Patent number: 9181475
    Abstract: Materials comprising an A/M/X compound are provided. An A/M/X compound is a compound comprising one or more A moieties, one or more M atoms and one or more X atoms, where the A moieties are selected from organic cations and elements from Group 1 of the periodic table, the M atoms are selected from elements from Group 14 of the periodic table, and the X atoms are selected from elements from Group 17 of the periodic table. The materials include two-phase materials in which the A/M/X compound provides a first phase and a metal oxide or metal halide compound provides a second phase.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 10, 2015
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Mercouri G. Kanatzidis, In Chung, Konstantinos Stoumpos
  • Patent number: 9174310
    Abstract: The invention described herein pertains generally to boric acid free flux composition wherein in some embodiments, a phthalocyanine pigment is used to effect a color change at activation temperature.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 3, 2015
    Assignee: Lincoln Global, Inc.
    Inventor: Robert A. Howard
  • Patent number: 9056363
    Abstract: Aluminum parts, such as heat exchangers, with improved resistance towards corrosion caused by contact with stationary water or aqueous compositions can be obtained by addition of Li compounds to the flux used for brazing such parts. LiF and especially Li fluoroaluminates are very suitable. Another aspect of the invention concerns fluxes containing Li salts and their use for brazing of aluminum parts.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: June 16, 2015
    Assignee: SOLVAY FLUOR GMBH
    Inventors: Andreas Becker, Thomas Born, Placido Garcia-Juan, Alfred Ottmann, Hans-Walter Swidersky
  • Publication number: 20150047745
    Abstract: Disclosed is a flux composition for use in brazing of an aluminum alloy material and includes a flux component [A] containing KAlF4; and a fluoride [B] containing an element other than Group 1 elements and Group 2 elements and containing no potassium (K). Also disclosed is a brazing sheet which includes an aluminum alloy core; a filler material lying on or over at least one side of the core; and a flux layer lying on or over one side of the filler material and including the flux composition.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 19, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Nobuhiro Kobayashi, Motohiro Horiguchi, Koichi Sakamoto, Toshiki Ueda, Shimpei Kimura, Takahiro Izumi
  • Publication number: 20150044501
    Abstract: A method for joining a first metal part (11) with a second metal part (12), the metal parts (11,12) having a solidus temperature above 1100 QC. The method comprises: applying a melting depressant composition (14) on a surface (15) of the first metal part (11), the melting depressant composition (14) comprising a melting depressant component that comprises at least 25 wt % boron and silicon for decreasing a melting temperature of the first metal part (11); bringing (202) the second metal part (12) into contact with the melting depressant composition (14) at a contact point (16) on said surface (15); heating the first and second metal parts (11,12) to a temperature above 1100 QC; and allowing a melted metal layer (210) of the first metal component (11) to solidify, such that a joint (25) is obtained at the contact point (16). The melting depressant composition and related products are also described.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 12, 2015
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Per Sjödin, Kristian Walter
  • Publication number: 20150027994
    Abstract: A flux sheet (20A) and method of using the flux sheet to restore a surface (24) of a metal substrate (26). A laser beam (32) is directed onto the flux sheet to melt it and the surface, then allowed to cool and solidify to produce a restored surface. The flux sheet may be formulated to optically transmit at least 40% of electromagnetic energy from a laser onto the substrate surface. The flux sheet contains a flux composition that may include: a metal oxide, a metal silicate, or both; a metal fluoride; and a metal carbonate. The flux composition may limit the content of certain elements and compounds such as Fe, Li2O, Na2O and K2O. The flux composition may include constituents providing air shielding, contaminant scavenging, viscosity/fluidity enhancement, and optical transmission of laser energy through the flux sheet.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 29, 2015
    Inventors: Gerald J. Bruck, Ahmed Kamel, Atul L. Navale, Ivan F. Oliver Vargas
  • Publication number: 20150027993
    Abstract: Flux compositions adapted for use in laser welding, repair and additive manufacturing applications. Flux compositions contain 5 to 60 percent by weight of an optically transmissive constituent, 10 to 70 percent by weight of a viscosity/fluidity enhancer, 0 to 40 percent by weight of a shielding agent, 5 to 30 percent by weight of a scavenging agent, and 0 to 7 percent by weight of a vectoring agent, in which the percentages are relative to a total weight of the flux composition. Also disclosed are processes involving melting of a superalloy material in the presence of a disclosed flux composition to form a melt pool covered by a layer of molten slag, and allowing the melt pool and the molten slag to cool and solidify to form a superalloy layer covered by a layer of solid slag.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Inventors: Gerald J. Bruck, Ahmed Kamel
  • Publication number: 20140261893
    Abstract: The invention described herein pertains generally to boric acid free flux composition wherein in some embodiments, a phthalocyanine pigment is used to effect a color change at activation temperature.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Lincoln Global, Inc.
    Inventor: Robert A. Howard
  • Publication number: 20140261894
    Abstract: The invention described herein pertains generally to boric acid free flux composition in which boric acid and/or borax is substituted with a molar equivalent amount of potassium tetraborate tetrahydrate. In some embodiments, a phthalocyanine pigment is used to effect a color change at activation temperature.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: Robert A. Howard
  • Publication number: 20140202594
    Abstract: The present invention provides a flux for brazing aluminum-based materials, the flux being capable of brazing an A5052 alloy or the like containing 1.5 wt % or more of magnesium even when an Al—Si eutectic alloy (Si content: 7 to 12 wt %; A4343 alloy, A4047 alloy; melt starting temperature: about 577 to 615° C.) is used as a brazing material. Specifically, the present invention provides a flux for brazing aluminum-based materials, comprising, expressed in mol %, 20 mol %?CsF?49 mol %, 1 mol %?LiF?58 mol %, 19 mol %?AlF3?41 mol %, and 0 mol %<NaF and/or KF?19 mol %.
    Type: Application
    Filed: July 6, 2012
    Publication date: July 24, 2014
    Applicant: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.
    Inventor: Takahiro Nagae
  • Publication number: 20140174606
    Abstract: The present invention provides a flux for brazing aluminum-based materials, the flux being capable of brazing an A5052 alloy or the like containing 1.5 wt % or more of magnesium even when an Al-Si eutectic alloy (Si content: 7 to 12 wt %; A4343 alloy, A4047 alloy; melt starting temperature: about 577 to 615° C.) is used as a brazing material. Specifically, the present invention provides a flux for brazing aluminum-based materials, the flux comprising LiF, AlF3, and CsF, and the composition ratio of the three components being adjusted to within the range enclosed by four lines: line C connecting (30, 0, 70) and (30, 70, 0), line (1) connecting (31, 33.5, 35.5) and (51.5, 22.5, 26), line (2) connecting (32.5, 28.5, 39) and (49, 21.5, 29.5), and line (3) connecting (57.5, 42.5, 0) and (57.5, 0, 42.5), excluding the points on line C, in the triangular coordinates indicating LiF mol %, AlF3 mol %, and CsF mol %.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 26, 2014
    Applicant: DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.
    Inventor: Takahiro Nagae
  • Publication number: 20140120368
    Abstract: This invention relates to a flux composition for treating a metal surface, comprising (a) more than 40 and less than 70 wt. % zinc chloride, (b) 10 to 30 wt. % ammonium chloride, (c) more than 6 and less than 30 wt. % of a set of at least two alkali metal chlorides including sodium chloride and potassium chloride, (d) from 0 to 2 wt. % lead chloride, and (e) from 0 to 15 wt. % tin chloride, provided that the KCl/NaCl weight ratio of said set of at least two alkali metal chlorides ranges from 2.0 to 8.0. This invention also relates to a fluxing bath comprising this flux composition dissolved in water for use in galvanizing processes, by batch or continuously, of metal articles such as iron or steel long products and flat products including wires, plates, coils, rods, reinforcing bars, tubes, strips and sheets.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: Fontaine Holdings NV
    Inventors: David WARICHET, Julien Balduyck, Caroline Masquelier
  • Publication number: 20140120367
    Abstract: This invention relates to a flux composition for treating a metal surface prior to batch hot galvanizing in molten zinc-based alloys. The composition comprises (a) more than 40 and less than 70 wt. % zinc chloride, (b) 10 to 30 wt. % ammonium chloride, (c) more than 6 and less than 30 wt. % of a set of at least two alkali or alkaline earth metal halides, (d) from 0.1 to 2 wt. % lead chloride, and (e) from 2 to 15 wt. % tin chloride, provided that the combined amounts of lead chloride and tin chloride represent at least 2.5 wt. % of said composition. The invention further relates to a fluxing bath comprising this flux composition dissolved in water for use in galvanizing processes, by batch or continuously, of metal articles such as iron or steel long products and flat products, thus affording a protective coating layer with a thickness ranging from 5 to 30 ?m.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: FONTAINE HOLDINGS NV
    Inventors: DAVID WARICHET, JULIEN BALDUYCK, CAROLINE MASQUELIER
  • Patent number: 8624211
    Abstract: In one embodiment, a neutron shielding material is formed of boron-adding stainless steel of either austenite-ferrite two-phase stainless steel or ferritic stainless steel, the austenite-ferrite two-phase stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 3.0 to 10.0%, and Cr: 21.00 to 32.00%, the ferritic stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 4.0% or less, and Cr: 11.00 to 32.00%, and the boron-adding stainless steel being well in ductility and thermal conduction property.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: January 7, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masanori Kibata, Yuuji Saito, Motoji Tsubota, Yoshitaka Doken, Makoto Sato, Shunichi Hatano, Masanori Ishiga, Go Ono
  • Publication number: 20130299564
    Abstract: Pre-flux coating for the manufacturing of components by brazing, in particular manufacturing of heat exchangers of aluminium components including one or more fluxes and filler materials. The coating is composed of fluxes in the form of potassium aluminum fluoride K1-3AIF4-6, potassium trifluoro zincate, KZnF3, lithium aluminum fluoride Li3AIF6, filler material in the form of metallic Si particles, Al—Si particles and/or potassium fluoro silicate K2SiF6, and solvent and binder containing at least 10% by weight of a synthetic resin which is based, as its main constituent, on methacrylate homopolymer or methacrylate copolymer. The potassium aluminium fluoride, K1-3AIF4-6 is a flux including KAIF4, K2AIF5, K3AIF6 or a combination of these fluxes.
    Type: Application
    Filed: August 22, 2011
    Publication date: November 14, 2013
    Inventors: Dagmar Steiner, Jan Halvor Nordlien, Jeffrey L. Insalaco
  • Patent number: 8555502
    Abstract: The invention relates to a method for producing a metal part. Said method comprises the steps of supplying a strand of metal material and applying a coating from a fluxing agent composition to a surface of the strand of material by means of an application device (1), said fluxing agent composition being applied to only a defined portion of the surface of the strand of material by means of the application device (1).
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: October 15, 2013
    Assignee: BEHR GmbH & Co. KG
    Inventors: Peter Englert, Bernd Grünenwald, Matthias Türpe
  • Publication number: 20130248049
    Abstract: A titanium oxide raw material for a welding material, which can achieve the improvement in a bead shape and high-speed welding. The titanium oxide raw material has the form of particles and has a composition containing 58.0 to 99.0 mass % of TiO2, 2.5 mass % or less of Si, 3.0 mass % or less of Al, 5.0 mass % or less of Mn, 35.0 mass % or less of Fe, 5.0 mass % or less of Mg and 2.0 mass % or less of Ca, wherein the surface of each of the particles is coated with an oxide and/or a composite oxide of at least one element selected from Ti, Fe, Mn, Al and Si and the atom percentages of Ti, Fe, Mn, Al, Si and O in the oxide and/or the composite oxide fulfill the following three formulae. 1=Al+Si=10, 1<Ti/(Fe+Mn)=100, O/(Fe+Mn)=100.
    Type: Application
    Filed: January 25, 2012
    Publication date: September 26, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Eri Yamamoto, Norio Masaie, Akiyoshi Kataoka
  • Patent number: 8481986
    Abstract: In one embodiment, a neutron shielding material is formed of boron-adding stainless steel of either austenite-ferrite two-phase stainless steel or ferritic stainless steel, the austenite-ferrite two-phase stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 3.0 to 10.0%, and Cr: 21.00 to 32.00%, the ferritic stainless steel containing, in mass %, B: 0.5% to 2.0%, Ni: 4.0% or less, and Cr: 11.00 to 32.00%, and the boron-adding stainless steel being well in ductility and thermal conduction property.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: July 9, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masanori Kibata, Yuuji Saito, Motoji Tsubota, Yoshitaka Doken, Makoto Sato, Shunichi Hatano, Masanori Ishiga, Go Ono
  • Patent number: 8394206
    Abstract: A welding flux for stainless steel includes 30-55 wt % of silicon dioxide, 20-40 wt % of titanium dioxide, 10-20 wt % of chromium oxide, 5-20 wt % of molybdenum oxide, 5-10 wt % of molybdenum sulfide, and 5-10 wt % of halide.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 12, 2013
    Assignee: National Pingtung University of Science and Technology
    Inventor: Kuang-Hung Tseng
  • Publication number: 20130059162
    Abstract: Disclosed are: a flux composition which is used for brazing of a magnesium-containing aluminum alloy material, suppresses the formation of high-melting compounds, provides better wettability, and thereby exhibits better brazability even applied in a small mass of coating; and a brazing sheet using the flux composition. The flux composition for brazing of a magnesium-containing aluminum alloy material includes a flux component [A] containing fluorides as principal components; and an additive [B] being at least one selected from the group consisting of CeF3, BaF2, and ZnSO4. The flux component [A] preferably contains KF in a content of 40 percent by mass or more and 60 percent by mass or less; and AlF3 in a content of 40 percent by mass or more and 60 percent by mass or less.
    Type: Application
    Filed: August 24, 2012
    Publication date: March 7, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Nobuhiro KOBAYASHI, Motohiro Horiguchi, Kazutaka Kunii, Toshiki Ueda, Shimpei Kimura
  • Publication number: 20120315497
    Abstract: Aluminum parts, e.g., heat exchangers, with improved resistance towards corrosion caused by contact with stationary water or aqueous compositions such as cooling water can be obtained by addition of Li compounds in specific amounts to the flux used for brazing the parts. LiF and especially Li fluoroaluminates are very suitable. The flux and the Li salt can be dispersed in water or an aqueous composition separately.
    Type: Application
    Filed: February 10, 2010
    Publication date: December 13, 2012
    Applicant: SOLVAY FLUOR GMBH
    Inventors: Andreas Becker, Thomas Born, Alfred Ottmann, Hans-Walter Swidersky, Placido Garcia-Juan
  • Publication number: 20120255992
    Abstract: Aqueous flux preparations with increased dynamic viscosity are provided. In the flux preparations, irreversibly dehydrated K2AlF5 (also denoted as orthorhombic K2AlF5 or phase II salt) provides for an increase of the dynamic viscosity if the aqueous flux preparations are aged, i.e., a contact between water comprised in the preparation and irreversibly dehydrated K2AlF5 is maintained for a certain time span, preferably for at least 12 minutes. The higher viscosity improves the brazing process, for example because less flux preparation drops off from the parts to be brazed.
    Type: Application
    Filed: December 16, 2010
    Publication date: October 11, 2012
    Applicant: SOLVAY FLUOR GMBH
    Inventor: Alfred Ottmann
  • Publication number: 20110220248
    Abstract: A clinker composition including, relative to the clinker total weight: from 30 to 85% Al2O3; from 3 to 45% CaO; from 9 to 45% MgO and having an apparent porosity, such as measured by means of the apparent porosity underwater measurement assay according to modified NF B40-312 standard ranging from 4% to 60%.
    Type: Application
    Filed: November 17, 2009
    Publication date: September 15, 2011
    Applicant: KERNEOS
    Inventors: Sabine Guichard, Herve Fryda, Christoph Wohrmeyer, Remy Jolly, Enrique Elorza
  • Publication number: 20110146845
    Abstract: A flux for application on and for reduction of oxide layers on a metal surface. The flux includes potassium fluoride, sodium fluoride, remaining moieties of water and gelatin. The can also include a reactant comprising moieties of at least one of the compositions of zirconium fluoride, lithium fluoride, sodium fluoride, potassium cryolite and potassium aluminum fluoride (KaAlF4), moieties of salts on the basis of at least one of the elements zirconium, lithium, potassium, sodium, bismuth boron and titanium and gelatin. The flux can be used in a method to reduce oxide layers on a metal surface by applying the flux onto the metal surface.
    Type: Application
    Filed: May 25, 2007
    Publication date: June 23, 2011
    Applicants: KS ALUMINIUM-TECHNOLOGIE GMBH, KS KOLBENSCHMIDT GMBH, GELITA AG
    Inventor: Manfred Laudenklos
  • Publication number: 20100288397
    Abstract: A welding flux for stainless steel including 30-55 wt % of silicon dioxide, 20-40 wt % of titanium dioxide, 10-20 wt % of chromium oxide, 5-20 wt % of molybdenum oxide, 5-10 wt % of molybdenum sulfide, and 5-10 wt % of halide.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Inventor: Kuang-Hung Tseng
  • Publication number: 20100175791
    Abstract: Boric acid-free fluxes based on inorganic boron compounds for brazing metallic materials in combination with silver, copper or nickel base solders are known. Starting from this, in order to provide a further flux for brazing that is free of boric acid and contributes to a good wetting of the workpieces to be joined and that is distinguished by residues of low corrosivity, it is suggested according to the invention that the boron compounds should comprise potassium pentaborate and potassium metaborate, the ratio of the weight parts of potassium pentaborate and potassium metaborate being in the range between 4 and 10.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 15, 2010
    Inventor: Dominique Gomes