Class 148/553 - Copper(Cu) or copper base alloy

Subclass of Class 148 - Metal treatment
Definition: Process wherein the metal being cast is copper (Cu) or a
No. of patents: 38
Last issue date: 09/22/2009

Number	Title	Issue Date
7591916	Method for producing composite materials comprising Cu-based amorphous alloy and high fusion point element and composite materials produced by the method In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grai...	09/22/2009
7338631	Copper alloy and method of manufacturing the same This copper alloy contains at least zirconium in an amount of not less than 0.005% by weight and not greater than 0.5% by weight, includes a first grain group including grains having a grain size of not greater than 1.5 μm, a second grain group including grains hav...	03/04/2008
7204893	Copper base alloy casting, and methods for producing casting and forging employing copper base alloy casting In the present invention, forming is carried out by employing casting to rapidly solidify molten material comprising a copper base alloy containing 3 to 20% Ag (mass % hereinafter), 0.5 to 1.5% Cr and 0.05 to 0.5% Zr. Next, an aging treatment for precipitation is ca...	04/17/2007
7195681	Cu—Zn—Al(6%) shape memory alloy with low martensitic temperature and a process for its manufacture The present invention provides for Cu—Zn—Al(6%) alloy and an improved process to lower the martensitic transformation temperature, by a low temperature re-betatising treatment from 110° C. to 30° C. i.e. a lowering of 80° C. wherein previously high temperatur...	03/27/2007
7001473	Method for producing platinum alloys and alloys which can be obtained using this method Method for producing platinum/copper alloys which envisages the steps of melting platinum and copper parts and/or powders in a predetermined ratio in a controlled atmosphere, keeping the fusion product at the melting temperature for a given time period and subjectin...	02/21/2006
6949150	Connector copper alloys and a process for producing the same Copper alloy having the basic composition Cu—Zn—Sn contains 23-28 wt % Zn and 0.3-1.8 wt % Sn and satisfies the relation 6.0≦0.25X+Y≦8.5 (where X is the addition of Zn in wt % and Y is the addition of Sn in wt %). The alloy is cast into an ingot by melting a...	09/27/2005
6841013	Metallic nanowire and method of making the same A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite. ...	01/11/2005
6797082	Manufacture of copper microalloys The invention refers to batch casting, semi-continuous casting or continuous casting and rolling of copper, providing the addition of lead or refining the melt copper or the melt microalloyed copper to a lead content equal to or higher than 200 weight ppm. This mini...	09/28/2004
6716292	Unwrought continuous cast copper-nickel-tin spinodal alloy An unwrought continuous cast Cu—Ni—Sn spinodal alloy and a method for producing the same is disclosed. The Cu—Ni—Sn spinodal alloy is characterized by an absence of discontinuous γ′ phase precipitate at the grain boundaries, ductile fracture behavior duri...	04/06/2004
6627055	Manufacture of fine-grained electroplating anodes A continuously cast copper ingot is made by a procedure in which turbulence is imparted to the metal/solid interface during the casting operation. The ingot is then hot worked to form a billet having a smaller average grain size and a larger diameter than...	09/30/2003
6582531	X-ray tube and method of manufacture The present invention relates to structures within an x-ray device including an x-ray can, an x-ray can window frame insert, a rotor sleeve, and a bearing support assembly for a rotor structure. The various structures are fabricated from a chromium alloy ...	06/24/2003
6565681	Age-hardenable copper alloy casting molds A method for manufacturing casting molds, in particular continuous casting molds which are used with an electromagnetic rabbling mechanism in the continuous casting of steel, is provided. The method comprises selecting a specified age-hardenable copper al...	05/20/2003
6475635	Sliding material made of copper alloy, method of producing same, and sliding bearing A copper alloy sliding material which can bring about superior resistance to fatigue as well as good anti-seizure property without containing any Pb. The copper alloy sliding material is made to have the structure in which both of the hard copper alloy ph...	11/05/2002
6460243	Method of making low stress and low resistance rhodium (RH) leads 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 st...	10/08/2002
6299708	Carbide dispersed, strengthened copper alloy A carbide dispersed, strengthened copper alloy includes copper as a major constituent, carbide particles, and a dispersing agent. The carbide particles consist of one or more carbides selected from chromium carbide, tungsten carbide, molybdenum carbide, a...	10/09/2001
6293993	Method for recycling brass foundry waste A recycling process for zinc-rich solid waste containing zinc oxide, Cu oxides and impurities normally present in brass, in which a mixture is formed containing the waste with a finely divided solid reducing agent and a binder, and the mixture is compacte...	09/25/2001
5958257	Process for treating brass components to reduce leachable lead A process for the treatment of brass components to reduce leachable lead therefrom when the component is exposed to water in which the brass component is first treated with an aqueous caustic solution to remove some of the leachable lead therefrom. Therea...	09/28/1999
5919322	Alloy, in particular for use in the manufacture of frames for glass, jewelry, and the like A high-temperature, nickel-free alloy, in particular for spectacle frames, jewelry, etc. With the following composition in percentages by weight: Zn 3.0-7.0% Mn 8.0-13.0% Fe 0.5-3.5% Al 4.5-8.00 Cu the remainder....	07/06/1999
5614038	Method for making machinable lead-free copper alloys with additive Machinable lead free brasses for potable water applications are provided wherein a combination of bismuth and selenium are substituted in the alloy for lead and the bismuth and selenium are added to the alloy in the form of an additive product comprising ...	03/25/1997
5601658	Method of treating lead-containing surfaces to passivate the surface lead A method for treating bronze or brass fixtures containing lead with a cupric acetate solution is described. The treatment results in decreased amounts of lead in subsequent use. A preferred embodiment uses about 0.01 M cupric acetate at pH4....	02/11/1997
5230757	As-cast, age-hardened Cu-Sn-Ni worm gearing and method of making same Worm gearing having improved wear and strength properties comprises a Cu, 8.0-13.0 w/o Sn, 3.5-5.0 w/o Ni alloy aged in the as-cast condition to strengthen the dendritic microstructural constituent (e.g., alpha phase) while retaining the as-cast, relative...	07/27/1993
5200003	Copper graphite composite A process for producing a copper alloy composite containing dispersed graphite. The process comprises locating compacted uncoated graphite in a preheated die, pouring molten copper alloy over the compacted graphite and infiltrating the compacted graphite ...	04/06/1993
5198044	Copper alloy and process for its preparation Process for the preparation of a substantially homogeneous alpha phase copper-nickel-tin alloy comprising copper and 4-18% by weight of nickel and 3-13% by weight of tin, comprising atomizing a molten alloy having the before-indicated composition and coll...	03/30/1993
5196074	Copper alloys capable of spinodal decomposition and a method of obtaining such alloys A method is disclosed for manufacturing a finished product which consists at least partially of a copper nickel and tin based alloy which has undergone spinodal decomposition. A liquid bath of the Cu Ni Sn based alloy is prepared containing also titanium ...	03/23/1993
5028391	Copper-nickel-silicon-chromium alloy A copper-nickel-silicon-chromium alloy having the combination of high hardness and high electrical conductivity. The alloy is composed by weight of 9.5% to 11.5% nickel, in an amount sufficient to provide a nickel-silicon ratio of 3.4 to 4.5, 0.5% to 2.0%...	07/02/1991
5026433	Grain refinement of a copper base alloy A method of producing a grain refined copper base alloy containing iron in the amount of less than 2.3% by weight and which is cast into an ingot by conventional direct chill casting. Calcium is added to the melt before casting, preferably in the form of ...	06/25/1991
5017244	Process for improving the electrical conductivity of a copper-nickel-iron alloy The present invention relates to copper-iron-nickel alloys having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Alloys in accordance with the present invention consist essentially of fro...	05/21/1991
4927467	Method for producing thin plate of phosphor bronze A method for continuous production of thin plate ingot of phosphor bronze by quenching molten metal of bronze, wherein molten metal of phosphor bronze is quenched at a rate of from 102 ° C./sec. to 105 ° C./sec. to thereby solidify...	05/22/1990
4818283	Dispersion hardened copper alloys and production process therefore A process for producing a dispersion hardened copper alloy includes admixing to a copper melt from 0.3 to 15 weight % of molybdenum to provide a mixture which is a melt; superheating the mixture to a temperature ranging from about 200° C. to about 1000°...	04/04/1989
4572747	Method of producing boron alloy A process for making a boron alloy from a ferrous or non-ferrous melt by adding a boron compound to the melt and reducing the compound within the melt by a reductant, such as aluminum, silicon or carbon, such that the boron can alloy with the melt. A boro...	02/25/1986
4555272	Beta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about...	11/26/1985
4474614	Impurity segregation in copper by controlled cooling treatment A process for the formation of copper anodes useful in the electrorefining of copper. Molten partially refined copper is subjected to controlled cooling such that the impurities coalesce into larger agglomerations and in the resulting solid partially refi...	10/02/1984
4412871	Cast copper alloys The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordanc...	11/01/1983
4204883	Tarnish resistant copper alloy A copper base alloy of superior tarnish resistance consisting essentially of 7.0 to 8.5% aluminum by weight and 1.5 to 2.5% nickel by weight with the balance (89-91.5 wt %) being essentially copper. The process by which the alloy is prepared is controlled so t...	05/27/1980
4070207	Method of producing porous copper workpieces and product thereof Porous copper workpieces are obtained by A. obtaining a copper workpiece having a selected grain size; B. machining the workpiece to a selected size and shape; C. electrochemically polishing said workpiece; D. annealing said workpiece from step (c) in oxygen at a temper...	01/24/1978
3985589	Processing copper base alloys Processing copper base alloys to improve the stress corrosion resistance thereof. Copper base alloys containing from 12.5 to 30% nickel and 12.5 to 30% manganese are subjected to a duplex aging treatment in order to improve the stress corrosion resistance...	10/12/1976
3972712	Copper base alloys Copper-base alloys are disclosed which are characterized by unusually low melting points combined with good tensile strength and ductility in the as-cast condition, excellent founding characteristics, high hardness and strength in the as-cast plus heat tr...	08/03/1976
3963526	Method of imparting increased dezincification resistance to brass A method in which to a brass containing 61-66% of copper there is added 0.02% of an alloying element such as arsenic, antimony or phosphorus and up to 4% of lead and in the case of chill casting and pressure die casting alloys 0.05-0.8% of aluminum, the r...	06/15/1976

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Class 148/553 - Copper(Cu) or copper base alloy