Metal Coating Patents (Class 72/47)
  • Patent number: 6711925
    Abstract: In a process for manufacturing a conductive wire that is suitable for use in semiconductor packages, a core wire of an extensible metal other than gold is first prepared to have a diameter ranging from 300 &mgr;m to 500 &mgr;m. Thereafter, a gold-containing outer layer having a thickness ranging from 2.5 &mgr;m to 25 &mgr;m is plated onto an outer surface of the core wire so as to form a gold-plated core wire. Subsequently, the gold-plated core wire is drawn to result in the conductive wire having a diameter ranging from 1 &mgr;m to 50 &mgr;m.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: March 30, 2004
    Assignee: Asep Tec Co., Ltd.
    Inventor: Pen-Tien Liao
  • Publication number: 20030205073
    Abstract: A fiber planted steel sheet obtained by forming only a fiber planting layer having excellent adhesion to a substrate made from a composition having special composition on the surface of a surface treated steel sheet as a substrate without forming a primer of a polyester synthetic resin containing an anticorrosive pigment and the like and electrostatically planting short fibers in the planting layer. Therefore, the electrostatically fiber planted steel sheet is produced by coating an aqueous adhesive composition for planting fibers comprising an emulsion resin having a glass transition temperature of −40 to 40° C., aqueous coloring pigment dispersion, defoamer and pH modifier on the surface of the surface treated steel sheet to form a fiber planting layer having excellent adhesion to the steel sheet on the surface of the steel sheet and electrostatically planting short fibers while the surface of the planting layer retains adhesion.
    Type: Application
    Filed: May 29, 2003
    Publication date: November 6, 2003
    Applicant: SUMITOMO CORPORATION
    Inventor: Teruyuki Tatsumi
  • Publication number: 20030161966
    Abstract: A system and method for coating a length of material 1 with and electron-beam curable coating or an ultraviolet curable coating comprises placing a portion of the material to be coated under tension or compression and driving or pulling the material 1 through a coating system 100 whereby a liquid coating is applied. The material 1 is then exposed to electron beam radiation and/or ultraviolet radiation to cure the coating applied thereto.
    Type: Application
    Filed: February 25, 2002
    Publication date: August 28, 2003
    Inventors: James Cannon Bible, Robert Antoine Wright
  • Patent number: 6598287
    Abstract: A method and apparatus for sizing a galvanized tube, in which two sizing stations are used. A first sizing station having at least one sizing roll is used for sizing the tube prior to the galvanizing process. A second sizing station is then used, the station having at least one resilient sizing roll which is used for sizing the tube after the galvanizing process. By using a first sizing stand, which does most of the sizing work, the rolls in the second sizing stand need not pull the galvanized tubes with as much force. The advantage of the present invention is that cooler temperatures, faster mill speeds, and less cosmetic flaws in the finished galvanized product are seen, due to the lower force applied by the second sizing stand rolls to the galvanized product.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: July 29, 2003
    Assignee: Western Tube & Conduit Corporation
    Inventor: Kevin Carroll
  • Patent number: 6598441
    Abstract: The invention concerns a method for forming metal parts by cold deformation, consisting in: (i) mechanically depositing a metal zinc layer on the free surface of the blank of the part to be produced; and (ii) forming said part by plastic deformation.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 29, 2003
    Assignee: Dacral S.A.
    Inventors: David Cavaliere, Denis Begue
  • Publication number: 20030113574
    Abstract: In a process for manufacturing a conductive wire that is suitable for use in semiconductor packages, a core wire of an extensible metal other than gold is first prepared to have a diameter ranging from 300 &mgr;m to 500 &mgr;m. Thereafter, a gold-containing outer layer having a thickness ranging from 2.5 &mgr;m to 25 &mgr;m is plated onto an outer surface of the core wire so as to form a gold-plated core wire. Subsequently, the gold-plated core wire is drawn to result in the conductive wire having a diameter ranging from 1 &mgr;m to 50 &mgr;m.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Applicant: Asep Tec Co., Ltd.
    Inventor: Pen-Tien Liao
  • Patent number: 6564604
    Abstract: A process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated with a metal or metal alloy ensuring protection of the surface and the steel, whereby: the steel sheet is cut to obtain a steel sheet blank, the steel sheet blank is stamped to obtain the part, an alloyed intermetallic compound is applied to the surface, before or after the stamping, ensuring protection against corrosion, against steel decarburization, which intermetallic compound may provide a lubrication function, the excess material from the steel sheet required for the stamping operation is trimmed.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: May 20, 2003
    Assignee: Unisor
    Inventors: Ronald Kefferstein, Xavier Jartoux
  • Publication number: 20020187391
    Abstract: An anode can for an electrochemical cell is disclosed. The anode can is no more than 0.0050 inch thick, and the can includes a copper layer and a stainless steel layer. The ratio of the copper layer thickness to the stainless steel layer thickness is at least 0.10:1.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Inventors: Keith E. Buckle, Masaaki Ishio
  • Patent number: 6410098
    Abstract: A process is disclosed for preparing copper-film-plated steel cord suitable for use in vehicle tires comprising plating zinc or tin on the surface of steel cord, drawing the zinc or tin-plated cord, and then plating copper film onto the zinc or tin plated steel cord by contact with a solution of cupric sulfate solution, cupric nitrate, cupric chloride or cupric acetate. Compared with the presently used brass-plated steel cord, manufacturing tires with copper-plated cord according to the present invention reduces manufacturing time due to faster formation of adhesion interphase, increases the storage period by enhancing moisture stability, and retards adhesion degradation thereby extending the service life of the tires.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: June 25, 2002
    Assignee: Digital Plating Co., Ltd.
    Inventors: Gon Seo, Pyong Lee Cho, Gyung Soo Jeon, Seung Kyun Ryu
  • Publication number: 20010042393
    Abstract: A process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated with a metal or metal alloy ensuring protection of the surface and the steel, whereby:
    Type: Application
    Filed: April 6, 2001
    Publication date: November 22, 2001
    Inventors: Ronald Kefferstein, Xavier Jartoux
  • Patent number: 6314785
    Abstract: An apparatus is provided for forming many recesses on the surface of a nonmetallic or metallic material for a plated product. The apparatus comprises a needle or a drawn wire material of a diameter of 3˜95 &mgr;m, a retainer means for retaining the base portion of the needle or the drawn wire material so that the needle or drawn wire material is inclined at angles of more than 45 degrees, but less than 90 degrees, to said surface of said material, a material-fixing means to fix the material, and a means for raising or lowering the retainer means. In another embodiment a cutting blade is provided.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: November 13, 2001
    Assignee: Sintokogio, Ltd.
    Inventors: Kunio Ota, Hitoshi Rokutanda, Hiroaki Suzuki, Shinobu Kato, Seietsu Abe
  • Patent number: 6209197
    Abstract: A method of manufacturing and Al alloy tappet, used in an internal combustion engine, includes supplying wear resistant particles on a surface of a light metal tappet body, the surface slideably contacting a cam, kneading said particles with a surface layer of the surface of the tappet body to imbed them and then changing the surface layer after kneading to a flat surface.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: April 3, 2001
    Assignee: Fuji Oozx, Inc.
    Inventors: Akiyoshi Mori, Hiroaki Asanuma
  • Patent number: 6205643
    Abstract: The invention relates to a method for the manufacture of an electrically conductive metallic strip for the production of plug contact elements. A starting strip of copper or a copper alloy having an initial thickness which is greater than its final thickness is tin-plated. Subsequently, the tin-plated copper strip is deformed by rolling. This rolling process reduces both the thickness of the layer of tin and the thickness of the underlying copper strip.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: March 27, 2001
    Assignee: Stolberger Metallwerke GmbH & Co. KG
    Inventors: Hans W. Brinkmann, Horst Flockenhaus
  • Patent number: 6205831
    Abstract: Cathode cans for use in air depolarized cells, and cells made with such cans. The side wall is stronger than the bottom wall, and has a smoother outwardly-disposed surface than the respective bottom wall surface. Strength, and thus hardness, of the side wall relates to strength, and thus hardness, of the bottom wall, as hardness of 130-185 relates to hardness of 93-117, on the Vickers scale. Preferred hardness of the side wall is about 130 to 185; and of the bottom wall is about 93 to 117. The side wall is drawn, and an outwardly-disposed surface of the side wall is ironed. As ironed, the surface finish is related to surface finish of the bottom wall, at the same stage, as surface finish RA of less than 2, preferably about 0.5 to about 1.5, microinches, is related to surface finish RA of about 2 to about 5, preferably about 2.5 to about 4.5, microinches. Thickness of the side wall is generally up to about 85 percent as great as thickness of the bottom wall.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: March 27, 2001
    Assignee: Rayovac Corporation
    Inventors: Robert Adey, John David Burns, John Edward Oltman
  • Patent number: 6180171
    Abstract: A plated product and apparatus for forming recesses or grooves on material to be plated to produce such a product. The product includes material having a surface having many recesses, each having an opening of size d, where d is in the range 5-100 microns, a depth in the range from 0.2 d to d, or many grooves. In preferred embodiments, each groove or recess has an anchor portion. In some embodiments, each groove has a ridge portion at each of both edges of its opening. The angle of each groove to the surface of the material and each groove's depth and opening width are preferably in specified ranges. When the material is plated, part of the thin metal film enters the anchor portions of its grooves or recesses, so that the plated metal has superior capacity to resist peeling off of the plated metal.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 30, 2001
    Assignee: Sintokogio, Ltd.
    Inventors: Kunio Ota, Hitoshi Rokutanda, Hiroaki Suzuki, Shinobu Kato, Seietsu Abe
  • Patent number: 6132888
    Abstract: A stainless steel wire is plated with nickel (Ni) to a thickness of from not less than 1 .mu.m to not more than 5 .mu.m. An inorganic salt coat film mainly composed of at least one of potassium sulfate and borax (borate) and free from fluorine (F) or chlorine (Cl) is then deposited on the nickel (Ni) plate 2 as the substrate. The steel wire is then drawn to a reduction of area of not less than 60% to adjust the surface roughness thereof to a range of from 0.80 to 12.5 .mu.mRz, preferably from 1.0 to 10.0 .mu.mRz.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: October 17, 2000
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Susumo Yamamoto
  • Patent number: 6042891
    Abstract: Structural steel profiles such as channels, having a material thickness greater than 2 mm, are roll-formed to a preform profile with corners partial bent, in-line galvanized, and then further roll-formed to final shape. The preform profile has upwardly facing convex surfaces allowing rapid shedding of excess galvanising material. By preforming corners before galvanising, surface elongation in the galvanising layer is minimized and cracking eliminated. This is enhances by constant length bending of corners over preform and final roll-forming operations.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Tubemakers of Australia Limited
    Inventors: Brian Roy Crossingham, Andrew Robert Dickson, Rodney Matthew Langford, Douglas Ian Moore, Darrell St Clair Townsend
  • Patent number: 5989732
    Abstract: A stainless steel wire is plated with nickel (Ni) to a thickness of from not less than 1 .mu.m to not more than 5 .mu.m. An inorganic salt coat film mainly composed of at least one of potassium sulfate and borax (borate) and free from fluorine (F) or chlorine (Cl) is then deposited on the nickel (Ni) plate 2 as the substrate. The steel wire is then drawn to a reduction of area of not less than 60% to adjust the surface roughness thereof to a range of from 0.80 to 12.5 .mu.mRz, preferably from 1.0 to 10.0 .mu.mRz.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: November 23, 1999
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Susumu Yamamoto
  • Patent number: 5945157
    Abstract: A method of coating a golf club head under vacuum conditions with an open hanger type shot blasting machine includes the steps of forming a blank of golf club head; grinding the blank to form large pores on the surface of the blank; polishing the blank to form a refined blank containing fine pores on the surface thereof; hanging multiple refined blanks on hangers in an opening hanger type shot blasting machine to rotate and move the blanks into a vacuum rear portion of the machine. Meanwhile, shot blasting material containing mixed shot grit and powdered metal coating material is centrifugally thrown with mechanical throwing arms, so that shot grit strikes and forms numerous deeply depressed pores on the refined blanks. The shot grit quickly leaves the surfaces of the refined blanks due to a reactive force produced during impact of the shot grit on the blanks.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: August 31, 1999
    Inventors: Tsung Chi Lee, Tsai Yi Huang
  • Patent number: 5921126
    Abstract: A metalworking die has a soft metal plating on its contact surfaces. The plating produces a continuous lubricant supply which is only depleted slowly when employed in a hot metalworking operation. In forming a near-net-shape part using this die, the metalworking piece is coated with a glass lubricant. A temporary lubricant of graphite is also sprayed on the coated die.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 13, 1999
    Assignee: General Electric Company
    Inventor: Mark Lloyd Miller
  • Patent number: 5897762
    Abstract: A method for coloring tool bits includes cutting a beam having a hexagonal cross section into a number of segments. The segments are electroplated for forming an outer layer on the segments. The segments each have one or two of the ends machined to form a tool bit end for engaging with fasteners. The segments are then dyed for allowing color material to be attached onto the tool bit end and for coloring the tool bit end. The electroplated outer layer may prevent the color material from attaching onto the outer peripheral portion of the segments.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: April 27, 1999
    Inventor: Kuo Tien Liu
  • Patent number: 5860866
    Abstract: A steel pin is disclosed of a type to be forcibly driven into a steel substrate by using a powder-actuated tool. The steel pin has a substantially cylindrical shank, and a substantially sharp point which extends from one end of the substantially cylindrical shank, which conforms substantially to a tangent or secant ogive except for a substantially spherical tip having a radius in the range of approximately 0.015 inch (approximately 3.75 millimeters) to approximately 0.03 inch (approximately 7.5 millimeters), which has substantially true concentricity, which has surface-texture irregularities with a roughness-height index value not greater than approximately 30 microinches (approximately 0.76 micrometers), and which appears to be substantially free of other surface imperfections when viewed under 60.times. magnification.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: January 19, 1999
    Assignee: Illinois Tool Works Inc.
    Inventors: Don T. Van Allman, James H. Syvarth, William M. Heflin, Ronnie L. McConnell
  • Patent number: 5765418
    Abstract: A method for making an implantable medical device from a drawn refractory metal which has an improved biocompatible surface. The method includes coating a refractory metal article with platinum by a physical vapor deposition process and subjecting the coated article to drawing in a diamond die. The drawn article can be incorporated into an implantable medical device without removing the deposited metal.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: June 16, 1998
    Assignee: Medtronic, Inc.
    Inventor: Duane L. Rosenberg
  • Patent number: 5622612
    Abstract: A process is recited for plating elongated current collectors with indium. The current collectors have particular utility in alkaline electrochemical cells, particularly zinc/manganese dioxide alkaline cells containing "zero-added" mercury. The process of the invention involves electroplating conductive wire with indium and then drawing the plated wire to a lesser diameter. The drawn plated wire may then be cut to the desired lengths, typically in the shape of a nail, for use as current collectors within the alkaline cell.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: April 22, 1997
    Assignee: Duracell Inc.
    Inventors: David R. Mihara, Stephen J. Rose, Robert E. Gustar, David V. Adamson, Paul Barton
  • Patent number: 5610762
    Abstract: Method and apparatus is disclosed for manufacturing a reflex mold wherein a flexible or bendable, thin plate is provided for use in the manufacturing process. A reflex prism assembly is clamped together and metal is applied over the surface of the prisms to make a flat, thin layer of bendable material. A model of curvature is then provided and the thin layer is clamped on the model to assume the desired configuration. More metal is then applied over the back surface of the thin layer until sufficient thickness is obtained to make the reflex mold suitable to receive deposition of lens material for the production of a reflex lens.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: March 11, 1997
    Assignee: DBM Reflex Enterprises Inc.
    Inventor: Italo Caroli
  • Patent number: 5555756
    Abstract: A method of processing steel strip such that the steel strip can be temper rolled at the increased speeds and better surface texture control of prior art dry lubricants, yet the steel strip can be temper rolled with less frequent replacement of temper mill working rolls. Further, the resulting steel strip has increased stretchability and can be temper rolled to achieve sufficient reduction of YPE at lower working roll pressures and/or lower strip tension, previously only effective when the steel strip was lubricated with a wet lubricant film. Enhanced corrosion resistance is another advantage of this process.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: September 17, 1996
    Assignee: Inland Steel Company
    Inventors: Harold L. Fischer, Ajay K. Singh, John M. Stadnik, Jr.
  • Patent number: 5485736
    Abstract: A method of forming a seamless cylinder shell in which a layer of nickel is electroplated on a steel sheet so that a composite sheet is formed. The composite sheet is then preferably cut into a circular blank before further processing. The circular blank is subjected to an oxalic acid pretreatment for the nickel side and a zinc phosphate pretreatment for the steel side to retain a lubricant on the two opposed surfaces thereof and is thereafter lubricated with the lubricant. The circular blank is preferably cupped, relubricated, and drawn into the seamless cylinder shell. The seamless cylinder shell can be finished into a seamless gas cylinder by spinning one end of the cylinder into a cylinder head, internally threading the formed cylinder head, and then heat treating the cylinder.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: January 23, 1996
    Assignee: The BOC Group, Inc.
    Inventors: John P. Collier, Richard Hogle, James G. Marsh, Prakash Thomas
  • Patent number: 5463801
    Abstract: A coating system and method of using same for coating a hot rolling strip coil, such as zinc coating of steel strip, is disclosed. The coating system includes sequentially arranged coil uncoilers, a strip welder, a pickling tank, a heating and deoxidizing furnace, a coating pot, and a coiler. A rolling mill with at least one cold rolling mill stand is interposed between the pickling tank and the heating and deoxidizing furnace. In certain operations with hot rolling strip coil having a larger than desired thickness, the cold rolling mill is operated to reduce the strip material thickness. In operations where the strip material is of proper desired thickness, the strip material is passed through the cold rolling mill without carrying out cold rolling. The system and method accommodate a single coating line usable with a wide variety of hot rolled strip material and finish coated material thicknesses.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: November 7, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Kajiwara, Teruo Yamagushi, Hitoshi Okoshi, Tsuneo Nakamura
  • Patent number: 5360649
    Abstract: A thickness-reduced deep-draw-formed can obtained by using, as the substrate, a cold-rolled steel plate having a carbon content in the steel of 0.02 to 0.15% by weight, a manganese content in the steel of 0.2 to 1.0% by weight, a mean diameter of crystal grain of smaller than 6.0 .mu.m, a tensile strength over a range of from 35 to 55 kg/mm.sup.2, and a thickness of 0.17 to 0.30 mm in a step of subjecting an organic resin-coated structure of the surface-treated steel plate to the thickness-reducing deep-draw forming. This makes it possible to suppress the generation and accumulation of heat in the organic resin-coated steel plate to a level lower than the conventional levels. Therefore, the organic resin coating is prevented from being peeled off or damaged and, as a result, the corrosion resistance can be markedly improved.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: November 1, 1994
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Nobuyuki Sato, Ikuo Komatsu, Katsuhiro Imazu, Tomomi Kobayashi
  • Patent number: 5335526
    Abstract: A method for manufacturing rigid disk substrates wherein the conventional process is modified to include a hot press function performed at the end of the fabrication process. The hot press function is performed so as to produce a flat substrate by causing the blank to yield, avoiding flow of either the blank or its overlay coating. The hot press temperature is coordinated with subsequent user process thermal cycle to avoid annealing by that cycle. The platens of the hot press are renewable with exact replacement replicas of master surfaces exhibiting a precise texture pattern ranging from an exact character down to a visibly featureless surface. That precise texture is embossed into the surface of the overlay without modifying that surface's epitaxy character. The process is extended beyond what is normal, by providing compliant platens having replica faces for removing asparity defects from post memory film deposition surfaces, restoring the substrate surface character to the finished disk.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: August 9, 1994
    Inventors: Marvin C. Garrison, deceased, by Eleanor Garrison, legal representative
  • Patent number: 5297410
    Abstract: The invention relates to a method of manufacturing a tube, comprising the application respectively to one side of a metal strip 1 a first layer 2 of a first metal which is brazeable and to the other side of the metal strip 1 a second layer 3 of a second metal which is different from the first metal, and, after application of said layers 2,3, rolling of the strip 1 in order to form a tube having at least two walls.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: March 29, 1994
    Assignee: Bundy International Limited
    Inventor: Robert W. J. Goff
  • Patent number: 5271149
    Abstract: Conventionally co-axial cable is made in a continuous extrusion machine by continuously extruding an aluminum tubular cladding (1) through an annular die and simultaneously continuously introducing a core (4), comprised of a conductive wire surrounded by insulation, through an bore in a mandrel (3). A gap is inevitably present between the outer surface of the core (4) and the tubular cladding (1). To eliminate the gap it is necessary to reduce the diameter of the tubular cladding by swaging or drawing. The present invention disposes of the &wagging or drawing step by compacting the insulation of the core before introduction to the mandrel (3). The insulation then gradually expands to recover its original diameter and fill the cladding which has been extruded to its final diameter.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: December 21, 1993
    Assignee: Holton Machinery, Ltd.
    Inventor: Brian Maddock
  • Patent number: 5245847
    Abstract: A process for zinc electroplating of aluminum strip which can be performed continuously at a high speed and a high current density. The process comprises subjecting aluminum strip to anodic electrolysis in an acidic solution which may be an acidic plating bath solution or a pickling solution before the strip is subjected to cathodic electrolysis in an acidic zinc plating bath to perform zinc electroplating.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: September 21, 1993
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Seiji Bando, Yoshihiko Hoboh, Naotaka Ueda, Masanori Tsuji, Kazuyuki Fujita, Hisao Yoshimori
  • Patent number: 5204187
    Abstract: Composite-coated flat-rolled steel, product, method of manufacture and method of fabrication in which single or double-reduced low-carbon steel, after surface preparation, is flash-coated with tin (about 0.05 #/bb) which is alloyed with the base metal. Dichromate treatment passivates the tin-iron alloy surfaces depositing a chrome oxide layer prior to application of an organic coating (about 3 to 15 mg/in.sup.2 to each surface). Enhanced coating adhesion of the organic coating enables draw-processing of the double-reduced steel base metal substrate into unitary can bodies without damage to coating or substrate.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: April 20, 1993
    Assignee: Weirton Steel Corp.
    Inventor: William T. Saunders
  • Patent number: 5174822
    Abstract: A continuous hot dip galvanizing line for coating steel strip includes a continuous annealing furnace for annealing the strip before discharging the strip directly into the molten coating metal and a broad based bridle is located in the final cooling zone of the furnace. The broad based bridle includes at least two spaced bridle rolls each of which is independently driven and controlled to produce a more uniform tensile load in the strip and improve strip stability and coating quality in the final product.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: December 29, 1992
    Assignee: National Steel Corporation
    Inventors: George A. Nabhan, Naohiko Ide
  • Patent number: 4891275
    Abstract: An aluminum or aluminum alloy shape for manufacture of heat exchangers is coated with a metallic layer of a zinc-base alloy constituting a fluxless soldering or low temperature brazing material when heated. A process for direct coating of formed aluminum shapes in nascent state includes the steps of providing a non-reactive atmosphere around the shape, providing a coating material of zinc-base alloy and bringing the aluminum shape and the coating material into contact and maintaining the contact at an elevated temperature for a predetermined period of time for forming a coherent coating on the aluminum shape.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: January 2, 1990
    Assignee: Norsk Hydro a.s.
    Inventor: Richard Knoll
  • Patent number: 4859289
    Abstract: A process for producing a metal wire for use as a reinforcement of rubber products, in which the step of drawing a steel wire is preceded by a preliminary treatment that includes the step of smoothing the surface of the steel wire by electropolishing and the step of forming on the smoothed surface of the steel wire a coating of any one metal selected from the group consisting of copper, zinc, a copper-zinc binary alloy, and a ternary alloy which is composed of copper, zinc and third element selected from among nickel, cobalt, tin and iron.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: August 22, 1989
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yoshifumi Nishimura, Yoshio Yoshimura
  • Patent number: 4859811
    Abstract: A conductor has a core wire and a surface coated with the same kind of material as the core wire material. A copper wire (1) which forms the core wire has its surface cleaned by a preparatory processing mechanism (3) and then it is fed to a continuous sputtering unit (4). The continuous sputtering unit (4) coats the surface of the core wire (1) with copper by a coaxial magnetron sputtering method. Thereafter, this wire is drawn, by cold working, into a thin wire of predetermined size.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: August 22, 1989
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuo Sawada, Masanobu Nishio, Yoshihiro Nakai
  • Patent number: 4838063
    Abstract: A method for coating the inner surface of a metal tube with a metal layer consisting of one or more metals, the metal layer having a melting point lower than that of the metal tube, the method comprising;thinly applying a mixture consisting of a low melting point powder and a flux composition to the inner surface of the tube by the use of a plug, andheating the tube to which the mixture has been applied at a temperature being at least the melting point of the low melting point powder but lower than the melting point of the metal tube to fuse the powder.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: June 13, 1989
    Assignee: Hitachi Cable, Ltd.
    Inventors: Sinichi Nishiyama, Hajime Abe, Kuniaki Seki, Noboru Hagiwara
  • Patent number: 4829799
    Abstract: A method of manufacturing a substrate for a memory disk characterized in that a blank material comprising a non-magnetic metal substrate covered with a non-magnetic metal as an underlayer is subjected to a coining operation by two dies, i.e. upper and lower dies each having flat compressing surface and a certain kind of textured design formed thereon within an apparatus including a mandrel and a die ring arranged to limit the spreading extent of the material whereby a surface having ultra-preciseness and simultaneously impressed texture design is obtained.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: May 16, 1989
    Assignees: Furukawa Aluminum Co., Ltd., Kawasaki Steel Corp., C. Itoh & Co., Ltd.
    Inventors: Thomas U. Coe, Atsushi Yamazaki, Chris Krishnan
  • Patent number: 4823578
    Abstract: A method of manufacturing a substrate for a memory disk characterized in that a blank material comprising a non-magnetic metal substrate covered with a non-magnetic metal as an underlayer is subjected to a coining operation by two dies having flat compressing surfaces within an apparatus including a mandrel and a die ring arranged to limit the spreading extent of the material whereby a surface having ultra-preciseness is obtained.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: April 25, 1989
    Assignees: Furukawa Aluminum Co., Ltd., Kawasaki Steel Corp., C. Itoh & Co., Ltd.
    Inventors: Thomas U. Coe, Atsushi Yamazaki, Chris Krishnan
  • Patent number: 4815309
    Abstract: A conductor has a core wire and a surface coated with the same kind of material as the core wire material. A copper wire (1) which forms the core wire has its surface cleaned by a preparatory processing mechanism (3) and then it is fed to a continuous sputtering unit (4). The continuous sputtering unit (4) coats the surface of the core wire (1) with copper by a coaxial magnetron sputtering method. Thereafter, this wire is drawn, by cold working, into a thin wire of predetermined size.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: March 28, 1989
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuo Sawada, Masanobu Nishio, Yoshihiro Nakai
  • Patent number: 4787228
    Abstract: A round copper or copper-alloy tube is internally coated with a relatively thick nickel or nickel-alloy layer and formed into a tube of rectangular or square-shaped cross section; the tube or cut-off sections thereof will serve as molds for continuous casting.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: November 29, 1988
    Assignee: Kabel-und Metallwerke Gutehoffnungshuette AG
    Inventors: Eike Weisner, Horst Gravemann
  • Patent number: 4774825
    Abstract: This invention relates to a method for cladding a wire-shaped steel element (1) with an aluminium coating layer (3) by passing the steel wire (1) through an extrusion orifice (8), whereby plastified aluminium is fed through a closed feed channel (7) preceding the orifice (8) and is applied under pressure on the wire-shaped steel element (1) in the orifice (8) for forming the coating (3). According to the invention, the steel wire (1) is provided with a corrosion-resistant layer (2) with a thickness of 1 to 25 micron, which layer (2) has a lower melting temperature than the melting temperature of the aluminium to be applied and whereby during the coating process the temperature of the protective layer (2) which comes in contact with the aluminium remains lower than the melting temperature of the layer (2).This invention also relates to coated steel wires according to the invention.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: October 4, 1988
    Assignee: N.V. Bekaert S.A.
    Inventor: Gilbert Vandenbroucke
  • Patent number: 4734303
    Abstract: A deep-draw-formed vessel which is prepared by deep-draw-forming a laminate comprising a steel or iron foil and a plastic film formed on each surface of the steel or iron foil through a layer of an adhesive having an adhesive force of at least 600 g/15 mm of width and an elastic modulus of 50 to 10,000.A Kg/cm.sup.2 inorganic filler such as titanium dioxide is preferably incorporated in the plastic film so as to improve the deep-drawability.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: March 29, 1988
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Tamio Fujiwara, Kazumi Hirota, Hiroshi Matsubayashi, Tadahiko Katsura
  • Patent number: 4726208
    Abstract: Composite-coated flat-rolled steel can stock processing and product for fabrication of sheet metal cans, in particular for three-piece, welded or cemented side seam cans. Single or double-reduced, low carbon, flat-rolled steel of a gage in the range of about 55 to 110 pounds per base box is flash coated with tin (0.05 #/bb), which is alloyed with the steel base metal; at least 0.20 #/bb of tin is added to one surface only, flow brightened and water quenched; chemical treatment chrome oxide coating of about 100 to 750 milligrams per square foot is added to both surfaces and an organic coating of 2.5 to 15 milligrams per square inch is added to the surface which is free of flow-brightened tin for disposition internally of a can fabricated from such coated can stock. The equivalent of quarter-pound and higher coating weight tinplate protection is provided while decreasing tin requirements and maintaining three-piece can fabrication properties not available with coating metal substitutes for tin.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: February 23, 1988
    Assignee: Weirton Steel Corporation
    Inventor: William T. Saunders
  • Patent number: 4714622
    Abstract: A blast material for the mechanical plating and a continuous mechanical plating process. The blast material comprises up to 90% by weight of steel shot not less than 10% by weight of an alloy powder which comprises 2.5-50% by weight of iron, not more than 5% by weight of at least one of aluminum, copper, tin, magnesium and silicon, the balance being zinc, and has a maximum particle size of about 0.4 mm and an average hardness of 140-450 Hv., The continuous mechanical process comprises continuing blasting, recycling the used blast material and magnetically separating the abraded fine particles of the steel shot in the course of the recycling.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: December 22, 1987
    Assignee: Dowa Iron Powder Co., Ltd.
    Inventors: Shigeru Omori, Masatsugu Watanabe, Fumio Oboshi
  • Patent number: 4711115
    Abstract: A flat, smooth material, e.g., metal sheet, suitable for use as a disc substrate for applying a recording media thereto for data storage devices, and a method of making same, are disclosed. The flat and smooth substrate is formed by applying sufficient pressure to opposite surfaces of the material to achieve the desired flatness and smoothness prior to finishing. Subsequent finishing may be used to remove any zone of roughness which may be present in the surfaces of the disc resulting from the pressing step. In one embodiment, the pressure step may be applied before finishing the disc perimeters.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: December 8, 1987
    Assignee: Aluminum Company of America
    Inventors: Israil M. Sukonnik, John S. Judge, Colin H. Kilgore
  • Patent number: 4686752
    Abstract: A slotted retaining plate for use in a tubular reactor within an analytical system. The reactor contains inert packed material which provides for the necessary flow path length for a fluid stream entering the reactor. The retaining plate is extremely thin and has an array of slots which permit the necessary flow of the stream through the reactor, but retain the packing material within the reactor. The design of the slot array in the retaining plates essentially eliminates any possible impediment to the stream flow. The slots are adjustable to provide more flexibility in slot size control to allow use of smaller packing particles within the reactor and improve the instrument resolution in, for example, an amino acid analyzer.
    Type: Grant
    Filed: May 12, 1985
    Date of Patent: August 18, 1987
    Assignee: Beckman Instruments, Inc.
    Inventor: Thomas D. Sharples
  • Patent number: 4658500
    Abstract: In a sliding bearing, a metallic layer is coated on a bearing base bush and is provided with grooved or helical or crossing indentations with intermediate elevations. Applied in a uniform manner onto the so-formed metallic layer is a sliding layer of softer material. Under pressure or application of shear forces, the material of the sliding layer provided above the elevations is forced through plastic shaping to flow into the indentations so as to provide a levelled and smooth sliding surface covering the metallic layer.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: April 21, 1987
    Assignee: Glyco-Metall-Werke Daelen & Loos GmbH
    Inventors: Ulrich Engel, Fritz Niegel, Jurgen Groschen