Heating Or Cooling Of Solid Metal Patents (Class 148/559)
  • Publication number: 20080053578
    Abstract: A manufacturing method of a thin component is characterized by heating a thin component, and thereafter, while sizing with molds and using molds as cooling media, performing one of quenching and isothermal transformation processes on thin component. Thus, a manufacturing method of a thin component without warping or deformation in heat treatment with even and high hardness, a bearing ring, a thrust needle roller bearing, a manufacturing method of a rolling bearing ring, a rolling bearing ring, and a rolling bearing can be obtained.
    Type: Application
    Filed: October 1, 2004
    Publication date: March 6, 2008
    Inventors: Kikuo Maeda, Yuuki Kataoka, Mtsuo Sasabe
  • Publication number: 20080019805
    Abstract: A transport path is defined by a plurality of consecutively arranged separately driven conveyor sections. A plurality of heat treating stations are spaced one from the other along the transport path. Coils are conveyed along the transport path through one or more of the heat treating stations. The speed at which the coils are conveyed on the separately driven conveyor sections is controlled to provide different transport and/or dwell times for the coils at different locations along the transport path.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 24, 2008
    Inventors: Martyn A. Bowler, Jens Nylander, T. Michael Shore
  • Patent number: 7198684
    Abstract: A plurality of gas turbine components or other articles are manufactured from a plurality of metallic-alloy workpieces using a manufacturing apparatus having a metalworking apparatus, and an annealing apparatus wherein the individual workpieces are annealed by single-workpiece annealing and not by large-batch annealing. A workpiece flow of the plurality of workpieces is established sequentially through the metalworking apparatus and the annealing apparatus.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: April 3, 2007
    Assignee: General Electric Company
    Inventors: Thomas Froats Broderick, Jeffrey Lynn Myers, Francois Laurent Giguere, Peter Brian Haley, Paul Raymond Phaneuf, William Francis Bergeron, Thomas Caudwell Straub
  • Patent number: 7175721
    Abstract: The invention relates to a method for producing high-performance Cr—Ti—V hydrogen storage alloys utilizing a thermit process, whereby residence of adversely affecting impurities is inhibited, addition of not less than 10 at % of Ti as an alloy component is realized, and thermal burden on the crucible used in the method is reduced. The method includes the steps of: (A) providing an alloy material (1) comprising a Cr oxide, a V oxide, and a reducing agent Al, and an alloy material (2) comprising Ti; (B) placing the alloy materials in a crucible for thermit reduction so that the alloy material (1) is placed above the alloy material (2); (C) igniting the alloy material (1) placed in step (B) and melting all metal elements contained in the alloy materials the with heat of the thermit reaction of the alloy material (1); and (D) making the alloy melt obtained in step (C) into an alloy.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: February 13, 2007
    Assignee: Santoku Corporation
    Inventors: Hiroaki Takata, Yutaka Oka, Junichi Nakagawa, Akira Neoda
  • Patent number: 7146731
    Abstract: A magnet assembly connectable to a metal assembly in an engaging fashion, a metal assembly connectable with the magnet assembly in an engaging fashion and a snapping mechanism comprising the magnet assembly and the metal assembly are disclosed, to be used with a strap and a watch case. A leaf spring element and a base element to be used with a watch case are also disclosed, together with manufacturing processes and a system and method to teach the concept of time.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: December 12, 2006
    Assignee: Disney Enterprises, Inc.
    Inventors: Stephanie Kraus, Chris Heatherly, Randal Ouye, Julie Nishioka, John Holland, Jeffrey Sand
  • Patent number: 7048813
    Abstract: The present invention provides a processing method capable of continuously working an Au—Sn soldering metal having a foil form in room temperature. The foil-form soldering metal containing from 10% by weight to 90% by weight of Au and balance comprising Sn is subjected to heat treatment for five minutes to ten hours at 200° C. to 270° C., and subsequently the foil-form soldering metal is slit. Thus, the heat treatment of the Au—Sn soldering metal before slitting enables continuous slitting of the Au—Sn foil-form soldering metal in room temperature and facilitates the production of a ribbon-form soldering metal.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: May 23, 2006
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventor: Ken-ichi Miyazaki
  • Patent number: 7001472
    Abstract: An improved method of selectively annealing a needle and the needle prepared by the improved method is disclosed. A curved needle is positioned adjacent a flat electromagnetic induction coil. The curved body of the needle is positioned in a plane parallel with the coil plane of the flat induction coil. A current is delivered through the coil to selectively heat and consequently selectively anneal a portion of the needle. The improved method enables the selective annealing of curved needles, and is especially useful for the manufacture of surgical needles.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: February 21, 2006
    Assignee: Ethicon, Inc.
    Inventors: John Collier, Leon K. Stungurys
  • Patent number: 6984272
    Abstract: A titanium material for a target has a microstructure in which the grain size is small and uniform and also has a macrostructure of the surface of the titanium material which is non-patterned and is excellent in surface property. A titanium ingot in which Vacuum Arc Remelting or Electron Beam Melting is performed is roughly forged at a temperature from 700° C. up to the ? transformation temperature, and is then forged for finishing at room temperature to 350° C., and is finally annealed.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: January 10, 2006
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Shoichi Takahashi, Takao Iwabuchi, Kensuke Ushijima
  • Patent number: 6955209
    Abstract: A method and arrangement for implementing post-heat treatment after spray forming is ended to achieve stress control in the manufacture of a spray formed metallic tool involves providing a spray-formed metallic tool by applying a spray-forming material on a mold substrate and causing substantially homogenous metallic phase transformations of the spray forming material within the spray-formed metallic tool to a substantially homogenous distribution of commingled metallic phases consisting, for example, of predetermined proportions of at least a bainite phase and a martinsite phase.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 18, 2005
    Assignee: Ford Motor Company
    Inventors: Richard L Allor, Allen Dennis Roche, Samir Samir
  • Patent number: 6942763
    Abstract: An aluminum alloy sputter target having a sputter target face for sputtering the sputter target is disclosed. The sputter target face has a textured-metastable grain structure. The textured-metastable grain structure has a grain orientation ratio of at least 35 percent (200) orientation. The textured-metastable grain structure is stable during sputtering of the sputter target. The textured-metastable grain structure has a grain size of less than 5 ?m. The method forms aluminum alloy sputter targets by first cooling an aluminum alloy target blank to a temperature of less than ?50° C. Then deforming the cooled aluminum alloy target blank introduces plastic strain into the target blank and reduces the grain size of the grains to form a textured-metastable grain structure. Finally, finishing the aluminum alloy target blank forms a finished sputter target that maintains the textured-metastable grain structure of the finished sputter target.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: September 13, 2005
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Andrew C. Perry, Paul S. Gilman, Jaak Van den Sype
  • Patent number: 6935774
    Abstract: A wristwatch case (11) and a method of manufacturing the case, the wristwatch case comprising a wristwatch case body (1) made of titanium or stainless steel and a crown pipe (3) fixed to each other, wherein a stem hole (2) corresponding to the crown pipe (3) is formed in the wristwatch case body (1), a small diameter part is formed in the crown pipe (3), and a small diameter part corresponding to the a small diameter part of the crown pipe is formed in the stem hole (2), the method comprising the step of fitting the crown pipe (3) into the stem hole (2) in the wristwatch case body (1) to form a solid phase diffusion joining part at a portion where the small diameter parts thereof are fitted closely to each other, and to form a brazed connection part at a portion other than that where the small diameter parts are fitted closely to each other, whereby a watch external part having excellent corrosion resistance and waterproof and a large number of design variations can be provided.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 30, 2005
    Assignee: Citizen Watch Co. Ltd.
    Inventors: Kouji Fujii, Junji Satoh, Hitoshi Uchida, Norio Hashimoto, Ryo Fujita
  • Patent number: 6908517
    Abstract: The invention includes a physical vapor deposition target composed of a face centered cubic unit cell metal or alloy and having a uniform grain size less than 30 microns, preferably less than 1 micron; and a uniform axial or planar <220> texture. Also described is a method for making sputtering targets. The method can comprise billet preparation; equal channel angular extrusion with a prescribed route and number of passes; and cross-rolling or forging subsequent to the equal channel angular extrusion.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 21, 2005
    Assignee: Honeywell International Inc.
    Inventors: Vladimir M. Segal, Stephane Ferrasse, Frank Alford
  • Patent number: 6902635
    Abstract: The present invention relates to a multi cell thermal processing unit. The thermal processing unit comprises an air tight common chamber containing an atmosphere other than ambient air. A loading cell is linked to the common chamber via a gas tight door for providing to and receiving from the common chamber a workpiece. Further, a preheating cell is linked to the common chamber via a heat insulating door. The preheating cell provides a substantially fixed temperature for activating the workpiece. Thermochemical processing of the workpiece is provided by a first and a second thermochemical processing cell each linked to the common chamber via a heat insulating door. The first thermochemical processing cell provides substantially fixed first thermochemical processing conditions for nitriding the workpiece. The second thermochemical processing cell provides substantially fixed second thermochemical processing conditions for post nitriding treatment of the workpiece.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: June 7, 2005
    Assignee: Nitrex Metal Inc.
    Inventors: Michel J. Korwin, Janusz Szymborski
  • Patent number: 6871694
    Abstract: A device for treating rolled metal products obtained by continuous casting, such as bars, plates, structural shapes or the like, arranged in line with a rolling system, and comprising a cooling plate (9), an in-line cooling box (13), in-line pickling means (14), in-line quality control means (16) consisting of ultrasonic instruments or induced current instruments, a bundling and/or lashing area (15).
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: March 29, 2005
    Inventors: Giuseppe Bordignon, Daniele Andreatta
  • Publication number: 20040187979
    Abstract: A method of manufacturing a tool body of a cutting tool comprises mechanically shaping the tool body to provide a metal surface on the tool body having a first surface characteristic. Thereafter, the metal surface is chemically treated with a metal reactant to create a relatively soft metal film along the metal surface. This soft metal film is removed via burnishing or other appropriate action to smooth the metal surface. After the surface is smoothed, the metal surface is then roughened to prepare the surface for the receipt of tungsten disulfide. The roughened metal surface is coated with tungsten disulfide. A cutting tool is disclosed that comprises a tool body defining a substantially isotropic surface having pits formed therein, and tungsten disulfide particles filled into the pits.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: Material Technologies, Inc.
    Inventor: Craig T. LeClaire
  • Patent number: 6793831
    Abstract: A method for fabricating devices in a pre-assembled state comprising forming plural laminae, registering the laminae, and bonding the laminae one to another is described. The plural laminae contain the substructures and structures of the device. The substructures are coupled to structures and other substructures by fixture bridges in the pre-assembled state. The substructures of the device are dissociated by eliminating the fixture bridges. The plural laminae are registered and bonded to form the device either before or after the fixture bridges are eliminated. The fixture bridges can be eliminated in a variety of ways, including vaporization by electrical current, chemical dissolution, or thermochemical dissociation. One method to selectively bond the laminae together is by microprojection welding. Microprojection welding comprises forming laminae with projections that extend from at least one planar surface of the lamina.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: September 21, 2004
    Assignee: State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
    Inventors: Brian Kevin Paul, Richard Budd Peterson, Tyson Jedd Terhaar
  • Patent number: 6773667
    Abstract: A hydrogen storage material which is an AB5 type hydrogen storage alloy having a CaCu5 type crystal structure represented by general formula: MmNiaMnbAlcCod wherein Mm is a misch metal, 4.1<a≦4.3, 0.4<b≦0.6, 0.2≦c≦0.4, 0.1≦d≦0.4, and 5.2≦a+b+c+d≦5.45, or general formula: MmNiaMnbAlcCodXe wherein Mm is a misch metal, X is Cu and/or Fe, 4.1<a≦4.3, 0.4<b≦0.6, 0.2≦c≦0.4, 0.1≦d≦0.4, 0<e≦0.1, and 5.2≦a+b+c+d+e≦5.45, characterized in that the lattice length on the c-axis is 406.2 pm or more, and a process of producing the same.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: August 10, 2004
    Assignee: Mitsui Mining & Smelting Company, Ltd.
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Shingo Kikugawa
  • Publication number: 20040144643
    Abstract: The invention encompasses a method of forming a metallic article. An ingot of metallic material is provided, and such ingot has an initial thickness. The ingot is subjected to hot forging. The product of the hot forging is quenched to fix an average grain size of less than 250 microns within the metallic material. The quenched material can be formed into a three dimensional physical vapor deposition target. The invention also includes a method of forming a cast ingot. In particular aspects, the cast ingot is a high-purity copper material. The invention also includes physical vapor deposition targets, and magnetron plasma sputter reactor assemblies.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Inventors: Chi tse Wu, Wuwen Yi, Frederick B. Hidden, Susan D. Strothers
  • Patent number: 6761779
    Abstract: A method is disclosed for preheating a metal strip in at least one direct fired preheating section of a furnace for limiting the oxidation of the metal strip. The method includes installing burners in the preheating section along its length for establishing a plurality of preheating sub-zones of unit length corresponding to one burner. The air and fuel settings for each burner are adjusted in accordance with a desired heat demand. Subsequent steps include operating a variable number of downstream burners at full power to establish a preheating zone of variable length to produce the desired heat demand, and extinguishing a second variable number of upstream burners to establish a corresponding variable recovery zone.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 13, 2004
    Assignee: Stein Heurtey
    Inventors: Didier Delaunay, Alain Morel
  • Patent number: 6761778
    Abstract: Method of reducing the wrinkles formed in heating zones, by radiant tubes, of continuous heat treatment lines for metal strip, such as annealing or galvanizing lines, the said strip passing over transporting and/or return rollers in the said furnaces, the said method, which consists in modifying the thermal state of the rollers, being characterized in that the said modification is made directly by varying the heating by the said radiant tubes located near the rollers, thereby directly controlling the heat flux emitted by the radiant tubes towards the rollers.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: July 13, 2004
    Inventors: François Mignard, Patrick Dubois
  • Patent number: 6723350
    Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: April 20, 2004
    Assignee: Nucryst Pharmaceuticals Corp.
    Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
  • Publication number: 20040055670
    Abstract: A method of producing a workpiece of a heat-resistant steel, in particular hot forming tool steel, is described, the workpiece being hardened and depassivated after mechanical machining and electrochemical treatment, the hardening including a reduction step, so that no depassivation need be performed by pickling, for example, before nitriding, and the result of the hardening treatment is a favorable surface condition for stepwise nitriding.
    Type: Application
    Filed: October 22, 2003
    Publication date: March 25, 2004
    Inventors: Nils Lippmann, Wolfgang Lerche
  • Patent number: 6704981
    Abstract: A method of forming sheets of superplastically formable material into a three dimensional article, the sheets being joined together along diffusion bonds to form discrete cells, at least one gas path being provided through the bond between cells. The sheets are heated to a temperature at which they exhibit superplastic properties and a gas injected between the sheets to expand the cells, the gas paths allowing the injected gas to pass from cell to cell. The edges of the gas paths are locally heated to change the microstructure of the sheets in the edge areas, which reduces the flow resistance of the edges under superplastic forming conditions and thereby reduces the propensity of the diffusion bonds bordering the gas transfer holes to peel apart under the forces of the inert gas exerted on the sheets at the gas transfer paths.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: March 16, 2004
    Assignee: BAE Systems plc
    Inventors: George Strickland, Adam B Marriott
  • Patent number: 6689227
    Abstract: This invention relates to application of eco-friendly starch solution as a quenching medium for heated metal parts fabricated from steel, alloy steel, aluminum and aluminum alloys. Depending on the material grade, critical temperature and desired cooling rate, various types of starch solution can be used and the composition and concentration of the starch quenchant can be tailored to provide the required cooling characteristics for wide range of materials. In particular the starch solutions have the potential to replace quenching oil. The starch solutions are environmentally friendly, having no toxic fumes and no after usage disposal liabilities as compared to oil fumes.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: February 10, 2004
    Assignee: Tata Consultancy Services, division of Tata Sons LTD
    Inventor: Satyam Suraj Sahay
  • Patent number: 6652681
    Abstract: Method of reheating metallurgical products, in which solid products, especially steel products, are reheated so as to bring them from a temperature substantially below 400° C. to a temperature of at least about 1000° C. by passing them through a furnace having an upstream zone in which the said products are preheated and a downstream zone in which the said products are brought to their final temperature on leaving the furnace, the downstream zone of the furnace being fitted with burners, at least some of which operate with an oxidizer which is air, the smoke (flue gases) generated by these burners flowing as a countercurrent to the products and preheating these products in the upstream preheating zone. According to the invention, at least one burner is placed in the upstream preheating zone of the furnace, this burner being fed with a mixture of oxidizer and fuel, the oxidizer containing more than 21 vol % and preferably more than 30 vol % oxygen.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: November 25, 2003
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Olivier Delabroy, Rémi Tsiava, Gérard Le Gouefflec, Fouad Ammoury
  • Publication number: 20030205463
    Abstract: An aluminum alloy sputter target having a sputter target face for sputtering the sputter target. The sputter target face has a textured-metastable grain structure. The textured-metastable grain structure has a grain orientation ratio of at least 35 percent (200) orientation. The textured-metastable grain structure is stable during sputtering of the sputter target. The textured-metastable grain structure has a grain size of less than 5 &mgr;m. The method forms aluminum alloy sputter targets by first cooling an aluminum alloy target blank to a temperature of less than −50° C. Then deforming the cooled aluminum alloy target blank introduces plastic strain into the target blank and reduces the grain size of the grains to form a textured-metastable grain structure. Finally, finishing the aluminum alloy target blank forms a finished sputter target that maintains the textured-metastable grain structure of the finished sputter target.
    Type: Application
    Filed: April 11, 2003
    Publication date: November 6, 2003
    Inventors: Andrew C. Perry, Paul S. Gilman, Jaak Van den Sype
  • Patent number: 6612154
    Abstract: Systems and methods for monitoring a heat treating atmosphere derive from at least one sensor placed in situ in the atmosphere a process variable, which is indicative of the ratio of gaseous hydrogen H2(g) to water vapor H2O(g) in the atmosphere. The systems and methods use the process variable, e.g., to control the atmosphere, or to record, or display the process variable.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: September 2, 2003
    Assignee: Furnace Control Corp.
    Inventors: Robert N. Blumenthal, Andreas T. Melville
  • Publication number: 20030140991
    Abstract: A method of reducing stress corrosion cracking in a member made of metal, such as a pipe, comprises applying a load to the member to prevent stress corrosion cracking.
    Type: Application
    Filed: January 31, 2003
    Publication date: July 31, 2003
    Applicant: The Governors of the University of Alberta
    Inventor: Weixing Chen
  • Publication number: 20030116236
    Abstract: A method of manufacturing a grain-oriented steel sheet including hot-rolling a slab prepared using molten steel containing, by mass %, C of not more than about 0.08%, Si of about 2.0 to about 8.0% and Mn of about 0.005 to about 3.0%; optionally annealing the hot-rolled steel sheet; performing cold rolling once, or twice or more with intermediate annealing therebetween; performing primary recrystallization annealing in a low- or non-oxidizative atmosphere and adjusting the C content in the steel sheet after primary recrystallization annealing to be held in the range of about 0.005 to about 0.025 mass %; performing secondary recrystallization annealing; decarburization annealing; and, preferably, performing additional high-temperature continuous or batch annealing. A grain-oriented electrical steel sheet having a sufficiently high magnetic flux density and a low iron loss can be advantageously obtained even when it is manufactured without using an inhibitor.
    Type: Application
    Filed: July 23, 2002
    Publication date: June 26, 2003
    Applicant: KAWASAKI STEEL CORPORATION
    Inventors: Yasuyuki Hayakawa, Hideo Yamagami, Seiji Okabe, Takeshi Imamura, Minoru Takashima, Mitsumasa Kurosawa
  • Publication number: 20030047255
    Abstract: A process is disclosed for the continuous thermochemical treatment of metal strip. It is useful with steel strip, of the oxidation-reduction type, in which the strip moves through a furnace in a protective atmosphere. The strip passes through at least one partial or total isolation device positioned within one or more sections of the furnace. The strip is heated in this isolation device in atmospheres having a dew point tailored to each strip according to the specific composition of the steel so that the atmosphere is oxidizing in the case of certain addition elements, but remains reducing in the case of iron.
    Type: Application
    Filed: August 13, 2002
    Publication date: March 13, 2003
    Inventors: Didier Delaunay, Francois Mignard
  • Publication number: 20030019746
    Abstract: Sputtering targets and methods of making sputtering targets are described. The method includes the steps of: providing a sputtering metal workpiece made of a valve metal; transverse cold-rolling the sputtering metal workpiece to obtain a rolled workpiece; and cold-working the rolled workpiece to obtain a shaped workpiece. The sputtering targets exhibits a substantially consistent grain structure and/or texture on at least the sidewalls.
    Type: Application
    Filed: November 9, 2001
    Publication date: January 30, 2003
    Inventors: Robert B. Ford, Christopher A. Michaluk
  • Publication number: 20020195177
    Abstract: A conductive hinge is made of a superelastic shape memory alloy such as nitinol (NiTi) having a large elastic strain limit for enabling the hinge to bend to a small radius during stowage for flexible return to a trained rigid hinge position by training the shape memory alloy to assume a predetermined deployed configuration when released from a stowage configuration. The hinge is trained by forging at a temperature above a training temperature. The hinge is released to deploy solar cell panels as the hinges unfold to the forged trained deployed configuration.
    Type: Application
    Filed: June 21, 2001
    Publication date: December 26, 2002
    Applicant: The Aerospace Corporation
    Inventors: David A. Hinkley, Edward J. Simburger
  • Publication number: 20020162612
    Abstract: Process for preheating metal, especially steel strip in direct-fired preheating sections for the purpose of limiting the oxidation of the heated metal strip, whatever the production configurations, which consists in using a preheating zone that can be divided, along its length, into a plurality of zones of unit length corresponding to one burner, it being possible for each of the said burners to be operated individually under fixed conditions so as to accurately adjust its air/gas setting, and therefore the resulting atmosphere in the furnace, wherein a certain number of burners starting from the downstream end of the preheating zone are ignited, the length of the furnace zone affected by the ignition of the said burners and the length of the recovery zone, i.e. the zone in which the burners are extinguished, being variable depending on the heat demand and in that each burner operates at full power and with a constant air/gas setting.
    Type: Application
    Filed: March 2, 2001
    Publication date: November 7, 2002
    Applicant: Stein Heurtey
    Inventors: Didier Delaunay, Alain Morel
  • Patent number: 6464806
    Abstract: A method of forming extruded structures from a polycrystalline material and structures formed thereby. The method generally entails forming a structure that comprises a polycrystalline material constrained by a second material in all but one direction, with the polycrystalline material having a patterned surface that is normal to the one direction. The polycrystalline material is then selectively heated, during which the second material restricts thermal expansion of the polycrystalline material in all but the one direction normal to the surface of the polycrystalline material. As a result, stresses are induced in the polycrystalline material that cause grain growth from the surface of the polycrystalline material in the one direction. The growth of an individual grain produces an extruded structure that projects above the surface of the polycrystalline material.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: October 15, 2002
    Assignee: International Business Machines Corporation
    Inventors: Munir D. Naeem, Lawrence A. Clevenger
  • Patent number: 6460243
    Abstract: A method of making rhodium (Rh) lead layers for a read sensor comprises a first step of obliquely ion beam sputtering the rhodium (Rh) lead layer followed by a second step of annealing. This method results in rhodium (Rh) lead layers which have reduced stress and less resistance, making them highly desirable for lead layers of a sensor in a read head.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: October 8, 2002
    Assignee: International Business Machines Corporation
    Inventor: Mustafa Pinarbasi
  • Publication number: 20020125128
    Abstract: A method for producing a tantalum sputtering component includes a minimum of three stages each of which include a deformation step followed by an inert atmosphere high-temperature anneal. Temperatures of each of the anneal steps can be different from one another. A tantalum sputtering component includes a mean grain size of less than about 100 microns and a uniform texture throughout the component thickness. The uniform texture can be predominately {111}<uvw>.
    Type: Application
    Filed: October 30, 2001
    Publication date: September 12, 2002
    Applicant: Honywell International Inc.
    Inventor: Stephen P. Turner
  • Patent number: 6436207
    Abstract: Improved targets for use in DC magnetron sputtering of nickel or like ferromagnetic face-centered cubic (FCC) metals are disclosed for forming metallization films having effective edge-to-edge deposition uniformity of 5% (3&sgr;) or better. Such targets may be characterized as having: (a) a homogeneous texture mix that is at least 20% of a <200> texture content and less than 50% of a <111>texture content, (b) an initial pass-through flux factor (%PTF) of about 30% or greater; and(c) a homogeneous grain size of about 200 &mgr;m or less.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 20, 2002
    Assignee: Applied Material, Inc.
    Inventors: Murali Abburi, Seshadri Ramaswami
  • Publication number: 20020062854
    Abstract: Ternary tellurium compounds and ternary selenium compounds may be used in fabricating thermoelectric devices with a thermoelectric figure of merit (ZT) of 1.5 or greater. Examples of such compounds include Tl2SnTe5, Tl2GeTe5, K2SnTe5 and Rb2SnTe5. These compounds have similar types of crystal lattice structures which include a first substructure with a (Sn, Ge) Te5 composition and a second substructure with chains of selected cation atoms. The second substructure includes selected cation atoms which interact with selected anion atoms to maintain a desired separation between the chains of the first substructure. The cation atoms which maintain the desired separation between the chains occupy relatively large electropositive sites in the resulting crystal lattice structure which results in a relatively low value for the lattice component of thermal conductivity (&kgr;g).
    Type: Application
    Filed: December 29, 2000
    Publication date: May 30, 2002
    Inventor: Jeffrey W Sharp
  • Patent number: 6355364
    Abstract: Processes for preparing copper-INVAR-copper (CIC) for use in making chip packaging and the CIC created. One process comprises annealing a CIC section at a temperature in a range of 1475° F. to 1625° F. for a time in a range of 40 to 120 seconds. Another process includes heat treating a CIC section at a temperature in a range of 1275° F. to 1425° F. for a time in a range of 40 to 120 seconds. The above processes can be combined. The CIC section created exhibits unique electrical, physical, and mechanical properties.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: March 12, 2002
    Assignee: International Business Machines Corporation
    Inventors: Robert M. Japp, Lisa J. Jimarez, Bonnie S. McClure
  • Publication number: 20020026966
    Abstract: Via a first path (P1) which extends for continuous treatment from one longitudinal end to the other of a cylinder head (H) passing between pairs of exhaust ports (15) and pairs of intake ports (14) opposed to each other with respect to one cylinder and which terminates in a tension bolt hole (21), and via second paths (P2P5) which, after treatment by this first path (P1), extend for successive treatment from cylinders adjacent the terminal point of the first path (P1) and between a pair of exhaust ports (15) and a pair of intake ports (14) opposed to each other and which terminate in tension bolt holes (21), the surface of the cylinder head (H) is stirred for refining without melting it by the heat from a rotating tool.
    Type: Application
    Filed: August 27, 2001
    Publication date: March 7, 2002
    Inventors: Seiji Nomura, Toshiyuki Gendou
  • Patent number: 6350328
    Abstract: Feed material for use in producing a thixotropic alloy comprising pellets in the form of a solid cylinder having a length to diameter ratio in the range of from 1:1 to 2:1 and a maximum length of 0.250 inch.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 26, 2002
    Assignee: Rossborough Manufacturing Co. LP
    Inventor: David W. Hostetler
  • Patent number: 6284068
    Abstract: When an electrical potential is applied to a metal or a metallic solution or a metal that is close to the melting point or a metal that is molten the electric charges are either drawn off and the metal has a high positive potential or a surfeit of electric charges are added and the metal has a high negative potential. When the metal is heated and then cooled, under said potential, the internal structure of the metal is changed. The crystal structure can become nano crystaline and or amorphous dependent upon the alloying elements, the potential and the temperature. This process has applications in inductive electrical parts as well as metalic structual materials.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: September 4, 2001
    Inventor: Clarence W. McQueen
  • Patent number: 6228187
    Abstract: An apparatus and method for generating artificial atmospheres in a furnace for the heat treating of materials. The furnace includes a substantially isolated chamber having a discharge receiving orifice for accepting a bi-phasic cryogen into a hot/work zone of the chamber. A low pressure cryogen source feeds a bi-phasic inert gas into the chamber in order to allow the volumetric expansion of the evaporating liquid constituent of the bi-phasic cryogen to purge a substantial portion of the ambient oxygen from the chamber and to allow a substantial residual concentration of the inert gas to blanket the process area without significant dissipation during the heat treating process. Oxidizable materials heat treated in artificial atmospheres generated by use of bi-phasic cryogens show no signs of scaling or staining through the process and thus do not need to undergo acid bathing prior to subsequent processing.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: May 8, 2001
    Assignee: Air Liquide America Corp.
    Inventor: Kenneth A. Till
  • Patent number: 6210499
    Abstract: To be able to satisfactorily bright-anneal metals having a high affinity to oxygen in a hood-type furnace or the like under a protective gas, a rather pure inert gas such as argon, neon or helium, which is mixed with not more than 50 vol-% of a reducing gas, for instance hydrogen, is used as protective gas in cooperation with an oxygen binder, preferably titanium.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: April 3, 2001
    Inventors: Peter Ebner, Heribert Lochner
  • Patent number: 6099666
    Abstract: A variable rate quench system allows the cooling of a heated workpiece to be controlled more closely. A liquid quenchant used in the system has an initial temperature, density and heat extraction index. The system comprises a first tank containing the liquid quenchant and to receive the workpiece and a second tank communicated to the first tank. The first tank has a means for agitating the liquid quenchant around the workpiece and a supply of make-up liquid quenchant communicated thereto. The second tank has a slurry of a non-liquid solid phase quenchant modifier and a means for selectively controlling addition of the slurry to the first tank. A real time data acquisition system acquires and analyzes temperature, density and agitation rate of the liquid quenchant, calculates an instantaneous heat extraction index of the liquid quenchant and compares the difference between the calculated index and a predetermined ideal index. Corrective action to minimize the difference is then taken.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: August 8, 2000
    Inventor: Joseph A. Powell
  • Patent number: 6096175
    Abstract: A method for fabricating a stent or other medical device by creating a free standing thin film of metal.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: August 1, 2000
    Assignee: Micro Therapeutics, Inc.
    Inventor: Noah M. Roth
  • Patent number: 6077370
    Abstract: Monolithic metal oxide structures, and processes for making such structures, are disclosed. The structures are obtained by heating a metal-containing structure having a plurality of surfaces in close proximity to one another in an oxidative atmosphere at a temperature below the melting point of the metal while maintaining the close proximity of the metal surfaces. Exemplary structures of the invention include open-celled and closed-cell monolithic metal oxide structures comprising a plurality of adjacent bonded corrugated and/or flat layers, and metal oxide filters obtained from a plurality of metal filaments oxidized in close proximity to one another.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: June 20, 2000
    Assignee: American Scientific Materials Technologies, L.P.
    Inventors: Konstantin Solntsev, Eugene Shustorovich, Sergei Myasoedov, Vyacheslav Morgunov, Andrei Chernyavsky, Yuri Buslaev, Richard Montano, Alexander Shustorovich
  • Patent number: 6071363
    Abstract: A single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300.degree. F. and higher, and method of making the same.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: June 6, 2000
    Assignee: Allison Engine Company, Inc.
    Inventors: Kurt Francis O'Connor, James Paul Hoff, Donald James Frasier, Ralph Edward Peeler, Heidi Mueller-Largent, Floyd Freeman Trees, James Rodney Whetstone, John Henry Lane, Ralph Edward Jeffries
  • Patent number: 5916114
    Abstract: A rotary blade for a mower or cutter is formed from boron steel, such as 10B38 steel, and is heat treated to yield high hardnesses of 48 Rockwell C or above. The blade has increased hardness because of the heat treating, but due to the alloy composition, is still sufficiently tough to perform satisfactorily as a cutting blade, in particular to pass conventional impact tests. Furthermore, the low carbon content of the blade makes cold working of the part practical.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: June 29, 1999
    Assignee: Fisher-Barton, Inc.
    Inventor: Darrel L. Turner
  • Patent number: 5900210
    Abstract: A high-strength and high-ductility aluminum-base alloy consisting of a composition of general formula: Al.sub.ba1 Mn.sub.a Si.sub.b or Al.sub.ba1 Mn.sub.a Si.sub.b TM.sub.c (wherein TM is one or more elements selected from the group consisting of Ti, V, Cr, Fe, Co, Ni, Cu, Y, Zr, La, Ce and Mm; and a, b and c are, in atomic percentages, 2.ltoreq.a.ltoreq.8, 0.5.ltoreq.b.ltoreq.6, 0<c.ltoreq.4, and a.gtoreq.b), wherein the alloy contains quasi-crystals. The an aluminum-base alloy have superior mechanical properties such as high hardness, high strength and high ductility.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: May 4, 1999
    Assignee: YKK Corporation
    Inventors: Erik Buchler, Kazuhiko Kita