With Electrocoating (e.g., Electroplating, Anodizing, Sputtering, Etc.) Patents (Class 148/518)
  • Patent number: 6178306
    Abstract: A method of fabricating a developer bearing body includes the steps of preparing metallic base material blasting the surface of the metallic base material using spherical particles and plating the surface of the metallic base material blasted, wherein a thickness of the plating layer is two or more times as large as a particle diameter in volume average of the developer.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: January 23, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshito Mizoguchi, Takao Honda, Kazuo Suzuki, Nobuaki Hara
  • Patent number: 6153027
    Abstract: A method of manufacturing a battery can-forming material, comprising the steps of spreading metal powder on a hot-rolled steel plate (hot coil) or applying said metal powder in the form of paste to a surface thereof; annealing and then rolling the hot-rolled steel plate having the metal powder applied to the surface thereof to form a metal layer consisting of the metal powder on the surface thereof; cold-rolling the hot-rolled steel plate and the metal layer; annealing the hot-rolled steel plate and the metal layer; and rolling the hot-rolled steel plate and the metal layer by a skin pass roller. Instead of forming the metal layer of the metal powder, the metal powder may be plated on the surface of the hot-rolled steel plate.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: November 28, 2000
    Assignee: Katayama Special Industries, Ltd.
    Inventor: Hirofumi Sugikawa
  • Patent number: 6136456
    Abstract: Grain oriented electrical steel sheet with a very low iron loss and a method for producing the same, wherein the surface of the iron substrate of the grain oriented electrical steel sheet is subjected to an enhancement treatment of crystal grain orientation or surface smoothing to a mean roughness of about 0.20 .mu.m or less, electroplating a chromium plating layer on the substrate with heterogeneous growth, and applying a tension coating film to the plating layer.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: October 24, 2000
    Assignee: Kawasaki Steel Corporation
    Inventors: Michiro Komatsubara, Hiroi Yamaguchi, Minoru Takashima, Mineo Muraki
  • Patent number: 6136107
    Abstract: A steel sheet for a battery container is covered with nickel-tin alloy layer on one side to be the inner side of the battery container which is formed by drawing the steel sheet. A battery using the steel sheet is manufactured by firstly filling positive electrode mix consisting of manganese oxide, graphite and potassium hydroxide and secondly filling negative electrode active material consisting of zinc and potassium hydroxide in the battery container.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: October 24, 2000
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hitoshi Ohmura, Hirokazu Moriyama, Tatsuo Tomomori, Satoshi Iketaka
  • Patent number: 6129992
    Abstract: Provided are a high strength cold rolled steel sheet and a high strength plated steel sheet possessing improved geomagnetic shielding properties, that is, having a high relative permeability in a d.c. magnetic field around 0.3 Oe, a process for producing the same, and an explosion-proof band or an outer magnetic shielding material, for television cathode-ray tubes, using the steel sheet. An ultra low carbon steel, which has a carbon content of not more than 0.0060% and has been subjected to solid solution strengthening utilizing silicon and magnesium without relying upon precipitation strengthening, is deoxidized with silicon so that aluminum is substantially absent in the steel. Alternatively, when the ultra low carbon steel is deoxidized with aluminum, boron is added to inhibit the precipitation of AlN. Next, the deoxidized steel is finish rolled at 750 to 980.degree. C., cold rolled with a reduction ratio of 60 to 90%, and then annealed in the temperature range of 750.degree. C. to the Ac.sub.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: October 10, 2000
    Assignees: Nippon Steel Corporation, Sony Corporation
    Inventors: Yasuharu Sakuma, Satoru Tanaka, Kazuo Koyama, Yujiro Miyauchi, Takeshi Kubota, Atsushi Itami, Hiroaki Kato, Chohachi Sato, Teruo Takeuchi
  • Patent number: 6126761
    Abstract: A process for controlling grain growth in the microstructure of thin metal films (e.g., copper or gold) deposited onto a substrate. In one embodiment, the metal film is deposited onto the substrate to form a film having a fine-grained microstructure. The film is heated in a temperature range of 70-100.degree. C. for at least five minutes, wherein the fine-grained microstructure is converted into a stable large-grained microstructure. In another embodiment, the plated film is stored, after the step of depositing, at a temperature not greater than -20.degree. C., wherein the fine-grained microstructure is stabilized without grain growth for the entire storage period.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: October 3, 2000
    Assignee: International Business Machines Corporation
    Inventors: Patrick W. DeHaven, Charles C. Goldsmith, Jeffrey L. Hurd, deceased, Suryanarayana Kaja, Michele S. Legere, Eric D. Perfecto
  • Patent number: 6103023
    Abstract: Thin film of quasicrystalline alloy having a thickness of between approximately 0.01 and 10 .mu.m comprising one or more quasicrystalline phases having a volume which represents at least 60% by volume of the quasicrystalline alloy, a quasicrystalline phase being either a quasicrystalline phase which exhibits rotational symmetries normally incompatible with a translational symmetry, i.e., symmetries with a 5-, 8-, 10- and 12-fold rotation axis, or an approximant phase or an approximant compound which is a true crystal, the approximant phase or compound having a crystallographic structure which remains compatible with the translational symmetry, but which has, in an electron diffraction photograph, diffraction patterns whose symmetry is close to that of 5-, 8-, 10- or 12-fold rotation axes; wherein the alloy has the following nominal composition, which is given in atomic percentages: Al.sub.a Re.sub.r Si.sub.s X.sub.d Mn.sub.m in which X represents at least one element chosen from B, C, P, S and Ge; 15.ltoreq.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: August 15, 2000
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Fran.cedilla.oise Cyrot-Lackmann, Thierry Grenet, Claire Berger, Guy Fourcaudot, Claire Gignoux
  • Patent number: 6103391
    Abstract: The present invention seeks to provide a titanium product applicable to construction material, daily necessities, cutlery and a trowel which has an excellent decorative effect or an excellent smoothing ability in smoothing the kneaded material surface and a manufacture method thereof. The titanium product according to the present invention has crystal grains including twins of 100 .mu.m or larger separated on or near a partial or the entire surface.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: August 15, 2000
    Inventor: Ryuta Hirayama
  • Patent number: 6090228
    Abstract: An anticorrosive treatment method for a separator of a molten carbonate fuel cell is provided. As conventional anticorrosive treatment methods for a wet-seal area in an separator, there are a molten aluminium coating method, a physical vapor deposition method, a slurry coating method, a spray coating method, a pack cementation method and a vacuum evaporation method. Defects due to high temperature thermal treatment corrodes even stainless steel base materials to thus shorten the lifetime of the fuel cell. Further, to sufficiently assure an anticorrosive capability of the separator wet-seal area, a coating ratio should be heightened finally, which makes fabrication of the large-area separator difficult, and manufacturing costs high. To solve the conventional problems, nickel and aluminium are coated in turn on a base material of stainless steel or an thin aluminium film is coated or bonded thereon to then perform diffusion process, which simplifies a manufacturing process and lowers a manufacturing cost.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: July 18, 2000
    Assignee: Samsung Heavy Industries Co., Ltd.
    Inventors: Jung-Tae Hwang, Young-Tae Choi, Si-Yeog Ryu
  • Patent number: 6080246
    Abstract: A high rhenium containing single crystal superalloy (30) is chromized, or coated with cobalt, before the conventional aluminising process steps to modify the surface of the high rhenium containing single crystal superalloy to prevent the formation of topologically close packed phases at the interface between the aluminide coating (32) and the rhenium containing single crystal superalloy. The invention is particularly applicable to platinum aluminide coatings, platinum aluminide-silicide coatings and aluminide-silicide coatings.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: June 27, 2000
    Assignee: Rolls-Royce, PLC
    Inventor: Rodney G. Wing
  • Patent number: 6066392
    Abstract: An Al material having an anodic oxidation film is provided that is excellent in gas and plasma corrosion resistance. By the present invention, a crack is not generated in the anodic oxidation film even in high temperature thermal cycles and corrosive gas or plasma environment. In the Al material having an Al alloy having on its surface an anodic oxidation film according to the invention, the anodic oxidation film has a porous layer and a barrier layer, and portions of cell triplet points, at which boundary faces of 3 cells in the porous layer melt, have secondary-pores.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: May 23, 2000
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Jun Hisamoto, Toshiyuki Tanaka, Masahiro Yanagawa
  • Patent number: 6022631
    Abstract: Adhesion of nickel plated steel sheets with each other, which is apt to occur during producing a steel sheet in which nickel is diffused by heat treatment of a nickel plated steel sheet in an annealing furnace, is prevented. A nickel plated steel sheet having a nickel-iron diffusion layer of 0.5-10 .mu.m thickness, a nickel plated layer thereon of 0.5-10 .mu.m thickness, and a silicon oxide layer thereon as an amount of silicon of 0.1-2.5 mg/m.sup.2 are formed on at least one face of a cold rolled steel plate. After the nickel is plated on the cold rolled steel plate, silicon hydrate is precipitated by dipping or electrolysis treatment in a bath of sodium orthosilicate as a main component, followed by heat treatment.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: February 8, 2000
    Assignee: Toyo Kohan Co. Ltd.
    Inventors: Hitoshi Ohmura, Hideo Ohmura, Tatsuo Tomomori
  • Patent number: 5958204
    Abstract: A method of controlling the final coating thickness of a diffused aluminide coating on a metal substrate. The method includes: (a) depositing an alumina-doped platinum-silicon powder onto a metal substrate, (b) heating the coated substrate to diffuse the platinum-silicon powder into the substrate and removing the undiffused scale, (c) depositing an aluminum-bearing powder onto the platinum-silicon-enriched substrate, and (d) heating the coated substrate to diffuse the aluminum-bearing powder into the substrate and removing the undiffused scale. The depositions are preferably done electrophoretically, in which case the Pt--Si deposition bath is doped with alumina or some other inert particulate. Alternatively, slurry deposition may be used. The method may also be used to deposit Pd--Si coatings onto metal substrates.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: September 28, 1999
    Assignee: Allison Enaine Company, Inc.
    Inventors: George Edward Creech, Paul Stephen Korinko, Michael Joe Barber, Subhash K. Naik
  • Patent number: 5951791
    Abstract: This process provides a method of fabricating porous aluminide articles. First the process consists of plating a preform with nickel and aluminum to create a metal-plated structure. The plating of nickel consists of electrodeposition or gaseous plating. The plating of aluminum consists of gaseous deposition of an organometallic-aluminum compound. The preform has either an open felt, woven fabric or a reticulated foam shape. Reactive sintering the metal-plated structure leaves an open nickel-aluminum structure having porosity and excellent strength and oxidation properties above 400.degree. C.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: September 14, 1999
    Assignee: Inco Limited
    Inventors: James Alexander Evert Bell, Kirt Kenneth Cushnie, Anthony Edward Moline Warner, George Clayton Hansen, Raymond Augustus Bradford
  • Patent number: 5942337
    Abstract: A multi-layer thermal barrier coating (42) for a superalloy article (40) comprises a platinum enriched superalloy layer (44), an MCrAlY bond coating (46) on the platinum enriched superalloy layer (44), a platinum enriched MCrAlY layer (48) on the MCrAlY bond coating (46), a platinum aluminide coating (50) on the platinum enriched MCrAlY layer (48), an oxide layer (54) on the platinum aluminide coating (50) and a ceramic thermal barrier coating (56) on the oxide layer (54). The platinum aluminide coating (50) and the platinum enriched MCrAlY layer (48) reduce movement of transition metals from the superalloy substrate (40) and the MCrAlY bond coating (46) to the oxide layer (54) so that the oxide layer is very pure alumina.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: August 24, 1999
    Assignees: Rolls-Royce, PLC, Chromalloy United Kingdom Limited
    Inventors: David S Rickerby, Rodney G Wing
  • Patent number: 5939172
    Abstract: A screen material is described which is formed by cladding, using electroplating, a structure composed of strands or fibers. The structure may incorporate a knit, woven or nonwoven material or, alternatively, of strands or fibres welded together, wound strands or fibers. The structure may be subjected to a calendering operation. The screen material, after having been provided, if required, with an electrically conductive cladding, is provided with a metal layer in an electroplating operation under conditions in which an overgrowth ratio R greater than 1 is achieved. The invention also describes a method for manufacturing such a screen material which preferably involves making use of an electroplating bath for depositing a metal cladding on a starting material in which a chemical compound is present which increases the overgrowth ratio R. The method can be implemented using a variety of conditions which can lead to an overgrowth ratio R of a desired value.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: August 17, 1999
    Assignee: Stork Screens B.V.
    Inventors: Johannes T. Snakenborg, Johannes Korsse
  • Patent number: 5922472
    Abstract: An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also provided. The method includes anodizing the article precursor, preferably in chromic acid solution and without chemical sealing during anodizing, applying the organic coating material to the aluminum-alloy article precursor, and precipitation heat-treating the coated aluminum article precursor to its final heat-treated state, thereby simultaneously curing the organic coating. If the aluminum alloy temper is of the naturally aging type, it is optionally lightly deformed prior to precipitation treatment aging.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: July 13, 1999
    Assignee: McDonnell Douglas Corporation
    Inventor: Steven G. Keener
  • Patent number: 5879819
    Abstract: A sliding part has a film of an Ag-In alloy comprising 25 to 35 wt. % of In and the balance Ag and inevitable impurities and formed on a surface of a stainless steel main body thereof which surface is slidable on other stainless steel part. The Ag-In alloy has a close-packed hexagonal crystal structure of .zeta. phase.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: March 9, 1999
    Assignees: Japan Scientific Engineering Co., Ltd., Fujikin Incorporated
    Inventors: Chobee Taguchi, Akihiro Yukawa, Hironori Matsumoto, Nobukazu Ikeda, Akihiro Morimoto
  • Patent number: 5810947
    Abstract: The adhesive strength and hardness of chromium nitride(CrN) film deposited on SKD 61 tool steel was significantly enhanced by a nitriding process on the surface the tool steel before coating with a CrN film. These nitriding processes included nitrocarburing, gas nitriding, and plasma nitriding, respectively. After nitriding, the surface of tool steel was repolishing with grits #600, #1000, #1800 of SiC grinding paper, as well as #1000 grinding paper and diamond paste, respectively. After repolishing, the CrN film was deposited by the cathodic arc ion plating deposition process at low temperatre of 200.degree. C. The present invention was related to the process modification for enhancing the adhesive strength and surface hardness of CrN film deposited on tool steels. This method included a nitriding process and a repolishing followed by the cathodic arc ion plating deposition.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: September 22, 1998
    Assignee: National Science Council
    Inventors: Jiann-Kuo Wu, Fu-Der Lai
  • Patent number: 5788823
    Abstract: A method of improving oxidation resistance of a platinum modified aluminide diffusion coating on a substrate involves electroplating the substrate with a platinum layer from an aqueous hydroxide based electroplating solution and aluminizing the substrate to grow the platinum modified aluminide diffusion coating on said layer. The electroplating solution preferably includes an alkali element and/or alkaline earth element that is incorporated in the platinum layer and in the aluminide diffusion coating formed thereon to significantly improve oxidation resistance of the coating.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 4, 1998
    Assignee: Howmet Research Corporation
    Inventors: Bruce M. Warnes, Thomas A. Legard, Nick S. DuShane, Jack E. Cockerill, Robert W. Beck
  • Patent number: 5781993
    Abstract: A one-sided oxidized silver-cadmium object is formed. One side of a silver-cadmium object is covered with a non-silver-cadmium shield to enable the one side to resist oxidation. Then the object is oxidized under conditions that leave substantially unoxidized a layer of the object adjacent the one side. An oxidized silver-cadmium object has a non-silver-cadmium, oxidation-resistant shield attached to one side of the object, the object having a substantially unoxidized layer adjacent the one side.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: July 21, 1998
    Assignee: Checon Corporation
    Inventor: Donald E. Conaway
  • Patent number: 5766380
    Abstract: A method of fabricating an alloy sputtering target having fine precipitates of the second phase material and small, randomly oriented and uniform grains. The new method includes solution treatment to minimize second-phase precipitate size, cryo-deformation to prevent the formation of cubic structures and recrystallization to generate fine uniform grain sizes having a random orientation.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: June 16, 1998
    Assignees: Sony Corporation, Materials Research Corporation
    Inventors: Chi-Fung Lo, Darryl Draper
  • Patent number: 5762726
    Abstract: In order to produce a wire electrode having a core consisting of a copper/zinc alloy and to produce a specific sheath layer, the sheath layer is coated onto the core at a temperature at which no diffusion occurs. The wire electrode is subsequently heated at a heating speed higher than 10.degree. C. per second, briefly annealed at temperatures above 500.degree. C. and subsequently cooled again very rapidly at cooling speeds higher than 10.degree. C. per second.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: June 9, 1998
    Assignee: Berkenhoff GmbH
    Inventors: Bernd Barthel, Heinrich Groos, Hans Hermanni
  • Patent number: 5733667
    Abstract: A plated nickel-titanium alloy product having a plated layer of nickel or a nickel alloy containing 5 to 15% by weight of cobalt. This product exhibits excellent surface treatability and workability, as well as shape memory effect and super-elasticity. Thus the product is most suitable for eyeglass frame components or similar ornamental articles.The product is produced by plating a layer of nickel or a nickel-cobalt alloy on the nickel-titanium alloy, dehydrogenating, cold working with not less than 10% working ratio, and subjecting to a final heat treatment between 300.degree. C. and 900.degree. C. If the final heat treatment is conducted between 750.degree. C. and 900.degree. C. for 10 to 120 seconds, a product with 4% or more super-elasticity at room temperature can be obtained.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: March 31, 1998
    Assignees: Sumitomo Metal Industries, Ltd., Kanto Special Steel Works, Ltd., Sanyo Special Alloys, Ltd.
    Inventors: Kazuyuki Nakasuji, Mitsuru Aiba, Masaki Takashima
  • Patent number: 5733390
    Abstract: A method of combining a beta titanium alloy with advanced carbon composites, the combination having a matched yield strength and modules of elasticity ratio. When the combination is adhesively bonded both parts will approach maximum yield strength and fail at a similar amount of total strain. The titanium and carbon composites are combined by first abrading the titanium to be bonded, coating the titanium with platinum, aging the titanium, spraying primer on the coated titanium, applying adhesive to the primer side of the titanium and then applying the carbon to the adhesive. This allows the carbon composite to bond securely to the titanium. This composite uses the best properties of each component, the combination having a better set of properties than either part.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: March 31, 1998
    Assignee: Ticomp, Inc.
    Inventor: William R. Kingston
  • Patent number: 5693157
    Abstract: A method of preparing a beta titanium-fiber reinforced composite laminate comprising the steps of, first, providing a beta titanium alloy having a first yield strength to modulus of elasticity ratio; then, heating the beta titanium alloy at a first preselected temperature for a first preselected time to produce a beta titanium alloy having a second yield strength to modulus of elasticity ratio; and then, adhering a fiber reinforced composite having a strength to modulus of elasticity ratio to the beta titanium alloy to produce a beta titanium-fiber reinforced composite laminate; wherein the first preselected temperature and the first preselected time are preselected such that the second yield strength to modulus of elasticity ratio of the beta titanium alloy is substantially similar to the strength to modulus of elasticity ratio of the fiber reinforced composite.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: December 2, 1997
    Assignee: Ticomp, Inc.
    Inventor: William R. Kingston
  • Patent number: 5679181
    Abstract: According to the present invention, there is provided a method of forming a corrosion-resistant nickel plated steel sheet or strip comprising a base sheet made of a cold rolled steel sheet or strip. A nickel layer is electroplated on at least one side thereof. A part or all of the nickel plated layer forms Fe-Ni diffusion layer. Moreover, the exposure rate of iron on the surface of the nickel plated layer is 4-30%.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: October 21, 1997
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hitoshi Ohmura, Yasuhiro Koyakumaru, Satoshi Iketaka
  • Patent number: 5672261
    Abstract: A method for preparing a Ni base superalloy inner wall surface of a body open end, such as an end of a turbomachinery blade, and an end plate, such as a blade tip cap, for brazing together at a rim of the end plate includes electrochemically removing oxides from the inner wall surface. The end plate is prepared, at least at its rim, by first removing surface and subsurface oxides, for example by mechanical abrading or a combination of such abrading and acid cleaning. Then at least the rim is electroplated with Ni which is heated to diffuse the Ni into the rim substrate. This provides an improved combination of surfaces for brazing for example with a Ni base brazing alloy. After brazing the rim to the inner wall, there is provided an article with an improved relatively low oxide brazed joint, including less than about 20 volume % oxides, and a plate rim of substantially Ni along with elements diffused from the brazing alloy and the rim.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: September 30, 1997
    Assignee: General Electric Company
    Inventors: Gary E. Wheat, Robert E. McCracken, Nicholas C. Palmer
  • Patent number: 5667663
    Abstract: A ceramic thermal barrier coating layer for a superalloy article is caused to adhere to the superalloy article by applying platinum to the superalloy article and heat treating at a temperature of 1100.degree. C. to 1200.degree. C. for one hour. This causes aluminum to diffuse from the superalloy article into the platinum to form a platinum enriched outer layer which generally includes a platinum enriched gamma phase and a platinum enriched gamma prime phase. An alumina layer is formed between the platinum enriched outer layer and a ceramic coating. The platinum enriched gamma phase and the platinum enriched gamma prime phase in the outer layer reduces the migration of transition metal elements to the ceramic coating to enable a very pure alumina layer to be formed.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: September 16, 1997
    Assignees: Chromalloy United Kingdom Limited, Rolls-Royce plc
    Inventors: David S. Rickerby, Stanley R. Bell, Rodney G. Wing
  • Patent number: 5645893
    Abstract: A coated article includes a superalloy substrate, an intermediate bond coat and a thermal barrier coating. The bond coat may include a platinum aluminide layer underlying a thin oxide layer. The thin oxide layer may include alumina. The coated article has high strength and durability at high temperatures over extended periods of time and thus is especially useful in the form of, e.g., a turbine blade or turbine vane.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: July 8, 1997
    Assignees: Rolls-Royce plc, Chromalloy United Kingdom Limited
    Inventors: David S. Rickerby, Daniel K. White, Stanley R. Bell
  • Patent number: 5614328
    Abstract: Provided is a method for manufacturing a reflow-plated member, which comprises a process for forming a plated layer of Sn or Sn alloy on the surface of a base material, at least the surface of which is formed of Cu or Cu alloy, by electroplating, and a process for running the base material at a traveling speed equivalent to 80% to 90% of the lowest traveling speed that said plated layer does not melt when the base material is continuously run for reflowing in a heating furnace at a predetermined temperature. The obtained reflow-plated member is excellent in any of properties including solderability, heat resistance, bendability, wear resistance, and corrosion resistance.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 25, 1997
    Assignee: The Furukawa Electric Co. Ltd.
    Inventors: Satoshi Suzuki, Kazuya Takahashi, Teruo Kawada, Yuuji Suzuki, Morimasa Tanimoto
  • Patent number: 5603782
    Abstract: A steel plate having a plated layer on the upper and lower surfaces thereof to be processed into a battery can which is cylindrical and open in one end thereof by drawing and ironing processing. The plated steel plate has more than 1.2 as a Lankford value (r) which is a width deformation degree in a lengthwise direction thereof/a thickness deformation degree in the lengthwise direction thereof, a width deformation degree in a widthwise direction thereof/a thickness deformation degree in the widthwise direction thereof, a width deformation degree in an oblique direction thereof/a thickness deformation degree in the oblique direction thereof. In-plane anisotropy .DELTA.r which is the difference among the Lankford values (r) is set to be less than .+-.0.15. In order to make the elongation coefficient of the plated steel plate constant in the three directions, a very low carbon steel plate is used. The steel plate is cold-rolled at 80-90%.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: February 18, 1997
    Assignee: Katayama Special Industries, Ltd.
    Inventors: Hirofumi Sugikawa, Sachio Michibata, Keiichi Hayashi
  • Patent number: 5582658
    Abstract: A high strength steel sheet adapted for press forming and method producing the same. The steel sheet containing by weight C: 0.01-0.1%, Si: 0.1-1.2%, Mn: not more than 3.0%, Ti:a value of (Ti%-1.5S%-3.43N%)/C% being 4-12, B: 0.0005-0.005%, Al: not more than 0.1%, P: not more than 0.1%, S: not more than 0.02%, N: not more than 0.05%. The method for producing the steel sheet wherein a steel slab containing the above mentioned component composition is heated and hot rolled in a temperature range of 1100-1280.degree. C. to provide a hot rolled sheet. The hot rolled sheet may be is subjected to cold rolling and annealing to provide a cold rolled sheet.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: December 10, 1996
    Assignee: Kawasaki Steel Corporation
    Inventors: Susumu Masui, Kei Sakata, Fusao Togashi, Masahiko Morita, Toshiyuki Kato
  • Patent number: 5547769
    Abstract: A method and a coating are provided for attaining protection of a substrate being formed of chromium steel for a component of a turbomachine, against at least one of corrosive and erosive attack at a temperature up to approximately 500.degree. C. An aluminum-containing metal coating is applied to the substrate. At least the surface of the metal coating is hardened or age-hardened to form a protective coating containing aluminum.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: August 20, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventor: Friedhelm Schmitz
  • Patent number: 5545268
    Abstract: Disclosed is a method of manufacturing a surface treated metal member excellent in wear resistance, comprising the steps of: applying Ni--P electroplating on the surface of a metal base member and heat-treating the metal base member; and blasting, on the surface of the metal base member, fine particles having nearly spherical shapes and having an average particle size of 10-400 .mu.m.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: August 13, 1996
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takashi Yashiki, Yasunori Wada, Hidenori Nishimoto, Yoshinori Terada, Takenori Nakayama, Tadashi Abumiya
  • Patent number: 5531955
    Abstract: Process of imparting conductivity to a three-dimensional net-shaped porous sheet can be performed efficiently before carrying out electroplating process. Fine metallic powders are applied to the porous sheet made of a foamed sheet, a nonwoven sheet, a mesh sheet or a plurality of sheets layered one on the other, so that a conductive metallic layer is formed on the porous sheet. Then, an electroplated layer is formed on the surface of the conductive metallic layer. The conductive metallic layer remains when the porous sheet burned out. Consequently, a metallic layer of the conductive metallic layer and the electroplated layer forms the metallic framework of the metallic porous sheet.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: July 2, 1996
    Assignee: Katayama Special Industries, Ltd.
    Inventor: Hirofumi Sugikawa
  • Patent number: 5524342
    Abstract: A method is disclosed for heating a portion of an article comprised of nickel, formed by electrodeposition, and possessing an internal stress sufficient to shrink the outer cross-sectional dimension upon application of heat, thereby shrinking the outer cross-sectional dimension of the heated portion. The method may be used to couple the article to other members such as end flanges without the use of an adhesive.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: June 11, 1996
    Assignee: Xerox Corporation
    Inventors: Eugene A. Swain, William G. Herbert, Gary J. Maier, Loren E. Hendrix
  • Patent number: 5482578
    Abstract: Process for producing novel nickel superalloy bodies having increased resistance of to oxidation and corrosion at high temperatures. The process comprises applying a thin layer of a platinum-group metal and heating to an elevated temperature to diffuse or integrate the platinum-group metal into the surface of the metal superalloy. Then the superalloy body is packed into a container filled with a diffusion powder composition containing sources of aluminum and chromium metals and heated in a hydrogen gas atmosphere to an elevated temperature to codeposit and diffuse aluminum and chromium into the platinum-group metal-treated surface. Finally, the superalloy body is removed from the diffusion coating container and heated to the solvus temperature to form a ductile surface having an outer zone microstructure comprising a normally brittle PtAl.sub.2 which has been ductilized by the solutioning therein of beta chromium. This ductilized PtAl.sub.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: January 9, 1996
    Assignee: Walbar Inc.
    Inventors: Bernard R. Rose, John K. Willis
  • Patent number: 5456816
    Abstract: A method for manufacturing a nickel alloy electroplated cold-rolled steel sheet excellent in press-formability and phosphating-treatability, which comprises the steps of: (a) cold-rolling a hot-rolled steel sheet at a reduction ratio of from 60 to 85% to prepare a cold-rolled steel sheet consisting essentially of: up to 0.06 wt. % carbon, up to 0.5 wt. % silicon, up to 2.5 wt. % manganese, up to 0.1 wt. % phosphorus, up to 0.025 wt. % sulfur, up to 0.10 wt. % soluble aluminum, up to 0.05 wt. % nitrogen, and the balance being iron and incidental impurities; then, (b) subjecting the cold-rolled steel sheet to a continuous annealing treatment which comprises heating the cold-rolled steel sheet to a recrystallization temperature and then slowly cooling same; then, (c) forming, on at least one surface of the annealed cold-rolled steel sheet, a nickel alloy electroplating layer having a plating weight of from 5 to 60 mg/m.sup.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: October 10, 1995
    Assignee: NKK Corporation
    Inventors: Toyofumi Watanabe, Akihiko Furuta, Tadashi Ono, Yoshinori Yomura, Shuichi Iwado
  • Patent number: 5447802
    Abstract: In connection with a process of implementing galvanizing and galvannealing on steel strips containing highly oxidizable elements such as Si, Mn, P, Ti, Nb, Al, Ni, Cu, Mo, V, Cr, and B, after annealing in a continuous line or implementing electroplating after annealing, the present invention provides a method for restraining non-plating at low cost in a stable manner and a surface treated steel strip having minimal non-plating. By applying on at least one surface of a steel strip a Fe plating having a coating weight of 0.1-10 g/m.sup.2 and an oxygen content of 0.1-10 wt %, followed by annealing and then zinc or zinc alloy plating, there is obtained a surface treated steel strip having minimal plating defects which includes a Fe plating layer immediately below a zinc or zinc alloy plating layer and a steel alloying element concentrated stratum immediately below the Fe plating layer. The Fe plating may be formed using an electroplating bath which contains 0.1-10 g/l of Fe.sup.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: September 5, 1995
    Assignee: Kawasaki Steel Corporation
    Inventors: Yoichi Tobiyama, Chiaki Kato, Nobuyuki Morito, Shigeru Umino
  • Patent number: 5425821
    Abstract: The present invention resides in a method for making an internal combustion engine intake valve. An iron aluminum alloy, in the form of a coil or bar stock, is provided. The alloy comprises 76.05 to 90.15 weight percent iron, 9 to 13.3 weight percent aluminum, 0.05 to 0.35 weight percent carbon, and 0.5 to 3 weight percent of a refractory metal, and/or 0.3 to 1.5 weight percent of titanium in combination with, or in place of, the refractory metal. The coil or bar stock is extruded to a poppet valve preform configuration at a heading temperature in the range of 800.degree. to 2,000.degree. F. and a true strain of about 0.5 to 2.2. The preform configuration is then headed to a pre-machined configuration while maintaining the head of such preform at an effective heading temperature up to 2,200.degree. F. said heading being carried out at a true strain of about 1.4 to 2.3.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 20, 1995
    Assignee: TRW Inc.
    Inventors: Mohan Kurup, Roger R. Wills, Mark S. Scherer
  • Patent number: 5413645
    Abstract: New composite-coated flat-rolled steel product and new methods of manufacture in which low-carbon steel, as received in cold-reduced continuous strip form is prepared for plating, a corrosion-prevention plating is applied, and a selected polymeric coating with lubricant is applied as the finish surface. The resulting composite-coated steel substrate is cold-rolled to decrease the composite-coated steel substrate gage. Selection of cold rolling steps, with non-use or selected use of stress-relief type of heat treatment before and/or after an initial cold-rolling of the steel substrate as received prior to surface preparation, provides for selective tin mill manufacture of composite-coated steel of various weights per unit area, for example, in the range of about 35 to about 100 lb/bb, produced by cold rolling of the composite-coated flat-rolled steel.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: May 9, 1995
    Assignee: Weirton Steel Corporation
    Inventors: William T. Saunders, deceased, William H. Dalrymple, Jon F. Grubbs, William L. Johnston
  • Patent number: 5413646
    Abstract: A method for depositing chromium and iron metals on substrates is disclosed in which the chromium hardens when heated. The electrolytic plating bath preferably includes: (a) water soluble Cr(III) produced by reducing Cr(VI) with sufficient amounts of methanol or formic acid; (b) ammonium formate; (c) a sulfate catalyst, such as sodium sulfate; (d) an inorganic iron compound, such as iron sulfate; (e) sufficient amounts of boric acid to substantially saturate the bath; and (f) a sufficient amount of sulfuric acid to provide a bath pH of from about 1.0 to about 1.5. The heat-hardenable chromium deposit allows the plated substrate to be heat tempered after plating to provide a KHN of greater than about 1200. This eliminates the necessity of removing oxidation products from an unplated heated substrate. Moreover, the amount of toxic Cr(VI) present in the bath is greatly diminished, and is replaced with a Cr(III) species that is environmentally safer.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: May 9, 1995
    Assignee: Blount, Inc.
    Inventors: John Dash, John DeHaven
  • Patent number: 5366564
    Abstract: A hard wear-resistant film is formed on a substrate in an atmosphere of an inert gas by using a target of a composition of Al.sub.a Ti.sub.b (wherein "a" and "b" stand for atomic percentages respectively in the ranges of 62 at %.ltoreq.a.ltoreq.85 at % and 15 at %.ltoreq.b.ltoreq.38 at %, providing a+b=100 at %) or Al.sub.c Ta.sub.d (wherein "c" and "d" stand for atomic percentages respectively in the ranges of 60 at %.ltoreq.c.ltoreq.80 at % and 20 at %.ltoreq.d.ltoreq.40 at %, providing c+d=100 at %) and by a sputtering process or ion plating process while varying continuously or stepwise the feed rate of a nitrogen-containing reaction gas into a chamber. The film consequently formed has a composition and structure thereof continuously or stepwise varied from a substantially amorphous metal of a part being in contact with the substrate to an (Al, Ti)N or (Al, Ta)N crystalline ceramic phase with the nitrogen content continuously or stepwise increased in the direction of the surface of the film.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: November 22, 1994
    Assignees: Yoshida Kogyo K.K., Ysuyoshi Masumoto, Akihisa Inoue
    Inventors: Hiroshi Yamagata, Akihisa Inoue, Tsuyoshi Masumoto
  • Patent number: 5356493
    Abstract: Blister-resistant steel sheet consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, 0.6 wt. % or less Si, 0.07 wt. % or less P, 0.025 wt. % or less S, 0.02 to 0.06 wt. % of sol. Al, 0.0035 wt. % or less N, 0.003 wt. % or less O, [(48/14)N+(48/32)S+4.times.(48/12)C] wt. % or less Ti and the balance being Fe and inevitable impurities; and smaller one of either Ti (wt. %) or [(48/14)N+(48/32)S] (wt. %) being [0.002 t.sup.2 +0.003] or more, where t is a thickness (mm) of the steel sheet. Method for producing blister-resistant steel sheet comprises preparing a cold rolled steel sheet having the composition of described above, and continuously annealing or continuous hot dip galvanizing by heating the steel sheet from room temperature to 650.degree.-720.degree. C. at a rate of 20.degree. C. sec or more and further to the soaking temperature above recrystallization temperature at a rate of 1.degree.-5.degree. C./sec.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: October 18, 1994
    Assignee: NKK Corporation
    Inventors: Seishi Tsuyama, Yoshihiro Hosoya, Shuji Kanetoh, Daijiro Koyanagi, Hiromi Nakamura, Satoshi Kohira
  • Patent number: 5354390
    Abstract: The invention relates to a new process for obtaining tissue-protective devices of bone surgery implants prepared from a medical-purity metal, titanium and/or a titanium-base microalloy containing at least 98% by weight of titanium, by establishing a biocompatible (tissue-protective) coating on the metal surface by anodic oxidation after degreasing and chemical or electrochemical etching, which comprises carrying out the anodic oxidation of the etched implant surfaces in an aqueous solution of a phosphate concentration lower than 20% by weight with a current density of 2 to 50 mA/cm.sup.2 until reaching a voltage of at least 105 V, then, after washing to ion-free, heat-treating the thus-oxidized implants at a temperature between 120.degree. C. and 750.degree. C. for 5 to 120 minutes, and repeating once or twice the anodic oxidation and heat-treatment with the phosphate concentration, current density and temperature values as given above for the first step.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: October 11, 1994
    Assignee: Tavkozlesi Kutato Intezet
    Inventors: Karoly Haszmann, Lajos Kovacs, Kalman Vargha, Imre Juhasz, Gyorgy Szabo
  • Patent number: 5316599
    Abstract: Ni-Ti intermetallic compounds are produced by subjecting a laminate of Ni foils and Ti foils to a rolling for thickness adjustment and then to a diffusion heat treatment at multistages within a particular temperature range for a particular time.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: May 31, 1994
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Kazuo Ebato, Masaomi Tsuda, Tsutomu Oomori
  • Patent number: 5300368
    Abstract: Highly wear-resistant sliding bearings with good sliding properties are difficult to manufacture by electrochemical deposition of the sliding alloy, because the corresponding electrolyte solutions are unstable. Conventional sliding alloys are also too hard for a run-in period and wear too rapidly when used in accordance with specifications. The new sliding layer is simple to manufacture and has an extremely favorable run-in period. The soft constituent of the sliding layer is present in a concentration which decreases along a concentration gradient perpendicular to the effective surface of the sliding layer as the distance from the effective surface increases. The sliding layer is particularly suitable for use as a lead-tin-copper alloy in a multilayered bearing.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: April 5, 1994
    Assignee: Glyco-Metall-Werke Glyco B.V. & Co. KG
    Inventors: Michael Kubert, Klaus Muller
  • Patent number: 5268045
    Abstract: Metallurgical bonded thermally sprayed coatings of exceptional bond strength are provided by a metal surface, prior to thermal spray coating, being electrochemically cleaned, or more desirably being electrochemically cleaned and electrochemically metallized, prior to overlaying with a thermal spray deposited metal coating with after depositing the thermal spray coating proceeding with a post heat treatment.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: December 7, 1993
    Assignee: John F. Wolpert
    Inventor: James H. Clare
  • Patent number: 5265319
    Abstract: A method for making a tin-coated steel sheet useful in manufacture of drawn and ironed cans eliminates the annealing step used in other manufacturing processes. The steel sheet comprises a steel slab having specified trace amounts of carbon, silicon, manganese, sulphur, aluminum, nitrogen and phosphorus, and has excellent formability and corrosion resistance.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: November 30, 1993
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Keiichi Shimizu, Junichi Tanabe, Fumio Kunishige