Electrical Induction Patents (Class 75/10.14)
  • Patent number: 9841237
    Abstract: Various embodiments provide an apparatus and methods for containing the molten materials within a melt zone during melting. The apparatus may include a vessel configured to receive a material for melting therein and an induction coil with unevenly spaced turns along its length. Induction coil can have a series of turns acting as a first (e.g., load) induction coil and a series of turns acting as a second (e.g., containment) induction coil. The material in the vessel can be heated and contained by the separated turns of the induction coil. A plunger can also assist in containing material during melting. Once the desired temperature is achieved and maintained for the molten material, operation of the induction coil can be stopped and the molten material can be ejected from the vessel into a mold using the plunger.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 12, 2017
    Assignee: Crucible Intellectual Property, LLC
    Inventors: Adam A. Verreault, Sean T. O'Keeffe, Joseph W. Stevick, Brennan D. Yahata
  • Patent number: 9516734
    Abstract: A plasma reactor comprises a torch body comprising a plasma torch for generating plasma, a reactor section in fluid communication with the torch body for receiving the plasma from the plasma torch, and a quench section in fluid communication with the reactor section. The quench section comprises an inner wall defining a quench chamber, the inner wall has a serrated configuration, and the quench chamber has an upstream end adjacent the reactor section and an opposite downstream end. The plasma reactor also comprises at least one heating element in thermal communication with the reactor section, wherein the at least one heating element provides for selectively modulating a temperature within the reactor section.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: December 6, 2016
    Assignee: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Jerzy Jurewicz, Jiayin Guo
  • Patent number: 9364897
    Abstract: A metal powder reconditioning apparatus and method recondition contaminated residual powder from an additive manufacturing device. The apparatus and method include a reducing chamber that receives contaminated residual powder resulting from an additive manufacturing process and remove oxygen from the contaminated residual powder to produce reconditioned powder. The reconditioned powder may be reused in the additive manufacturing process, or may be stored in a non-oxidizing atmosphere for later reuse.
    Type: Grant
    Filed: December 29, 2012
    Date of Patent: June 14, 2016
    Assignee: United Technologies Corporation
    Inventor: Christopher F. O'Neill
  • Patent number: 9288847
    Abstract: A cold crucible induction melter includes an induction coil and a melting furnace. The induction coil serves as a water cooled segment to directly transmit an induced current to a molten material in the cold crucible induction melter (CCIM), improving energy efficiency. Simultaneously, the structure of the CCIM is simplified and enables a smooth discharge even when the molten material consists of a ceramic or a metal material with a high melting point. The cold crucible induction melter heats and melts waste using an induced current which is generated in a water cooled segment by a high frequency current that is applied to the induction coil. The water cooled segment and the induction coil are disposed in a vertical direction so that the induced current that is generated by the induction coil is directly transmitted to the molten material.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: March 15, 2016
    Assignee: KOREA HYDRO & NUCLEAR POWER CO., LTD
    Inventors: Cheon-Woo Kim, Seok-Mo Choi, Hyun-Jun Jo, Jong-Kil Park, Young-Bu Choi
  • Patent number: 9249482
    Abstract: A nickel chromium alloy with 0.4 to 0.6% carbon, 28 to 33% chromium, 15 to 25% iron, 2 to 6% aluminum, up to 2% silicon, up to 2% manganese, up to 1.5% niobium, up to 1.5% tantalum, up to 1.0% tungsten, up to 1.0% titanium, up to 1.0% zirconium, up to 0.5% yttrium, up to 0.1% nitrogen, remainder nickel, has a high oxidation and carburization stability, long-term rupture strength and creep resistance. This alloy is particularly suited as a material for components of petrochemical plants and for parts, for example tube coils of cracker and reformer furnaces, pre-heaters, and reformer tubes, as well as for use for parts of iron ore direct reduction plants.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: February 2, 2016
    Assignee: SCHMIDT + CLEMENS GMBH + CO. KG
    Inventors: Dietlinde Jakobi, Peter Karduck, Alexander Freiherr Von Richthoffen
  • Publication number: 20150050183
    Abstract: Silicon eutectic alloy compositions and methods for making the same are disclosed. In one approach, a method may include using a glass carbon container to restrict contamination of the eutectic alloy melt. In an alternative approach, a method may include using a container having aluminum. The aluminum in the container may provide aluminum that is incorporated into the silicon eutectic alloy. Silicon eutectic bodies made by such methods are also disclosed.
    Type: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Inventors: ALITHA ALLBEE, ZACHARY BAUER, JEREMY BEEBE, MATTHEW GAVE, VASGEN SHAMAMIAN, RANDALL SIEGEL, JOSEPH SOOTSMAN, JAMES YOUNG
  • Patent number: 8936664
    Abstract: One embodiment provides a method of melting, comprising: providing a mixture of alloy elements that are at least partially crystalline; and heating the mixture in a container to a temperature above a melting temperature of the alloy elements to form an alloy, wherein the container comprises silica, and wherein the mixture comprising Zr and is free of Ti and Be.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: January 20, 2015
    Assignee: Crucible Intellectual Property, LLC
    Inventor: Theodore Andrew Waniuk
  • Publication number: 20140202597
    Abstract: One embodiment provides an article, comprising: an inner container having a cavity, the inner container comprising a ceramic; and an outer container, the outer container comprising a susceptor; wherein at least a portion of an outer surface of the inner container is in contact with an inner surface of the outer container, and wherein the inner container is removable from the mold. Methods of melting using the present article are also provided.
    Type: Application
    Filed: August 5, 2011
    Publication date: July 24, 2014
    Applicant: Crucible Intellectual Property, LLC
    Inventor: Theodore A. Waniuk
  • Publication number: 20140161691
    Abstract: The invention relates to a process and a device for bringing two immiscible liquids into contact, without mixing and at high temperature, with heating and kneading by induction. In particular, the invention relates to a process and a device for bringing into contact metals and salts which are molten at high temperatures, for example as high as approximately 1,100 K.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Pierre Feraud, Xuan-Tuyen Vu, Florent Gandi
  • Publication number: 20140090797
    Abstract: Described herein is a device comprising a crucible, a movable base and a heater; wherein the heater is configured to melt BMG to form molten BMG feedstock in the crucible; wherein the movable base configured to slide along a length of the crucible; wherein the movable base and the crucible are configured to hold the molten BMG feedstock.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Publication number: 20140090798
    Abstract: Described herein is a method of melting a bulk metallic glass (BMG) feedstock, comprising: heating at least a portion of the BMG feedstock to temperatures slightly below a solidus temperature of the BMG, wherein the portion remains a solid at the temperatures slightly below the solidus temperature and wherein a temperature distribution of the portion is essentially uniform; heating the portion of the BMG feedstock to temperatures above a liquidus point.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: THEODORE A. WANIUK, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Publication number: 20140090796
    Abstract: Described herein is a method of melting a bulk metallic glass (BMG) feedstock, comprising: feeding the BMG feedstock into a crucible; melting a first portion of the BMG feedstock to form molten BMG, while maintaining a second portion of the BMG feedstock solid; wherein the second portion and the crucible hold the molten BMG.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Theodore A. WANIUK, Joseph STEVICK, Sean O'KEEFFE, Dermot J. STRATTON, Joseph C. POOLE, Matthew S. SCOTT, Christopher D. PREST
  • Publication number: 20140083251
    Abstract: In a method for desulfurizing hot metal by analyzing S concentration of a sample taken out from the hot metal, the S concentration is analyzed rapidly and precisely by a method comprising a high frequency induction heating step of oxidizing the sample under a high frequency induction heating in a pure oxygen atmosphere to convert S in the hot metal to SO2 and an analysis step of analyzing SO2-containing gas generated in the high frequency induction heating step through an ultraviolet fluorescence method to quantify S concentration in the sample, whereby S concentration after the desulfurization is controlled precisely and hence fault of S concentration is prevented but also the increase of the cost due to the excessive addition of a desulfurization agent and step disruption at steel-making step are prevented.
    Type: Application
    Filed: August 8, 2012
    Publication date: March 27, 2014
    Applicant: JFE STEEL CORPORATION
    Inventors: Satoshi Kinoshiro, Kyoko Fujimoto, Masao Inose, Toshiyuki Ito
  • Publication number: 20140083250
    Abstract: A semi-liquid metal processing apparatus and method are presented in which a semi-liquid metal and/or semi-solid metal is introduced into a crucible and his electromagnetically stirred at a first frequency while cooling, and thereafter sidewalls of a metal charge formed of the semi-liquid metal and/or semi-solid metal are partially melted prior to tilting the crucible for removal of the metal charge.
    Type: Application
    Filed: August 14, 2013
    Publication date: March 27, 2014
    Applicant: AJAX TOCCO MAGNETHERMIC CORPORATION
    Inventors: Ronald R. Akers, Alan Koch
  • Publication number: 20140026713
    Abstract: This invention relates to a process in which a Platinum Group Metal (PGM)-rich residue from a BMR (Base Metals Refinery) process is subjected to a high temperature roast to remove contaminants, typically volatile elements (for example Se, Te, As, S, Bi, Os) and obtain a roast product. The roast product is smelted with a flux to form a slag phase and an alloy phase, and to vaporize sulphates and heavy metals like Pb, Te, and remove stable oxide compounds such as Si02 and oxides of Fe, Ni, Co, Cu, Cr, Te, Bi to the slag phase. The alloy and the slag phase are separated, and the alloy phase is then melted and atomized with a gas or liquid atomization process to form fine alloy particles that can be dissolved in water and treated in a hydrometallurgical PMR (Precious Metals Refinery) process.
    Type: Application
    Filed: February 2, 2012
    Publication date: January 30, 2014
    Applicant: WESTERN PLATINUM LTD
    Inventors: Gert Adrian Bezuidenhout, Jacobus Johannes Eksteen
  • Publication number: 20130340568
    Abstract: Copper is produced by a looping oxidizing process wherein oxidation of copper sulfide concentrate to molten blister copper by conversion with copper oxides (and optionally oxygen from air) in a one step, molten bath operation to produce molten blister copper, iron oxide slag, and rich SO2 off gas. The blister copper is treated in an anode furnace to reduce the iron content and oxidize residual sulfur, and prepare it for either electrolysis or reoxidation.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 26, 2013
    Applicant: ORCHARD MATERIAL TECHNOLOGY
    Inventors: Lawrence F. McHugh, Leonid N. Shekhter, Joseph D. Lessard, Daniel G. Gribbin, Esra Cankaya-Yalcin
  • Patent number: 8568507
    Abstract: In a method for processing and/or reducing solid or molten materials and/or pyrophoric materials, in particular shredder light fractions, the solid or molten materials are charged onto an at least partially inductively heated graphite body, wherein a reducing agent different from the carbon of the graphite is introduced, and the flowing-off reduced and/or degassed melt is collected, wherein the reducing agent is introduced together with the solid or molten charging materials, and, as the reducing agent, natural gas, hydrocarbons, hydrogen, carbon monoxide and/or ammonia are introduced along with water vapor, oxygen, carbon dioxide and/or halogens or hydrogen halides.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: October 29, 2013
    Assignee: SGL Carbon SE
    Inventor: Alfred Edlinger
  • Patent number: 8496046
    Abstract: Disclosed is a method for producing alloy ingot including: a step of: charging alloy starting material into a cold crucible in a cold-crucible induction melter, and forming melt pool of the alloy starting material by induction heating in inert gas atmosphere; a step of continuing the induction heating and adding first refining agent to the melt pool, and then reducing the content of at least phosphorus from among impurity elements present in the melt pool; and a step of forming alloy ingot by solidifying the melt, the phosphorus content of which has been reduced. The first refining agent is mixture of metallic Ca and flux, where the flux contains CaF2 and at least one of CaO and CaCl2. The weight proportion of the sum of CaO and CaCl2 with respect to CaF2 ranges from 5 to 30 wt % and the weight proportion of metallic Ca with respect to the melt pool is 0.4 wt % or greater.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 30, 2013
    Assignee: Kobe Steel. Ltd.
    Inventors: Jumpei Nakayama, Tatsuhiko Kusamichi
  • Patent number: 8449816
    Abstract: A composition suitable for use as a target containing antimony to be irradiated by accelerated charged particles (e.g., by protons to produce tin-117m) comprises an intermetallic compound of antimony and titanium which is synthesized at high-temperature, for example, in an arc furnace. The formed material is powdered and melted in an induction furnace, or heated at high gas pressure in gas static camera. The obtained product has a density, temperature stability, and heat conductivity sufficient to provide an appropriate target material.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 28, 2013
    Assignee: Brookhaven Science Associates
    Inventors: Yurii D. Seropeghin, Boris L. Zhuikov
  • Publication number: 20130071306
    Abstract: Embodiments described herein comprise a system and method for the recycling and recovery of components and metals found within lithium ion batteries. The process includes the safe and effective means of disposing of batteries, including lithium thylnel cloride, lithium ion, conventional designs, in a manner that utilizes a process of alloying to chemically capture the by product.
    Type: Application
    Filed: August 16, 2012
    Publication date: March 21, 2013
    Inventors: John Camp, David M. Camp
  • Patent number: 8361187
    Abstract: A method for reducing oxidic slags and dusts possibly loaded with organics uses an inductively heatable coke bed extending in the axial direction and having a temperature gradient. Reaction gas is sucked off in an axial region of the coke bed between two induction bodies and metal regulus and slag melt are tapped on the lower end. An inductively heatable shaft furnace chargeable with a lumpy coke bed for the reduction of metallic slags is made of an electrically insulating refractory material, has an adjustable temperature gradient includes at least one cooled induction body on the head side, a suction connection in an axial region where the prevailing temperature exceeds the condensation point of the substances to be removed, located below the cooled induction body on the head side, and an opening for tapping metal regulus and slag melt is provided on the lower end of the furnace.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: January 29, 2013
    Assignee: SGL Carbon SE
    Inventor: Alfred Edlinger
  • Publication number: 20120301383
    Abstract: The present invention relates to new compositions of matter, particularly metals and alloys, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique electronic character.
    Type: Application
    Filed: March 20, 2012
    Publication date: November 29, 2012
    Inventor: Christopher J. Nagel
  • Publication number: 20120237393
    Abstract: A composition for a low lead ingot comprising primarily copper and including tin, zinc, sulfur, phosphorus, nickel. The composition may contain carbon. The low lead ingot, when solidified, includes sulfur or sulfur containing compounds such as sulfides distributed through the ingot. The presence and a substantially uniform distribution of these sulfur compounds imparts improved machinability and better mechanical properties.
    Type: Application
    Filed: May 4, 2012
    Publication date: September 20, 2012
    Inventors: Michael Murray, Mahi Sahoo
  • Publication number: 20120167715
    Abstract: In order to provide a molten metal in a melting furnace with at least one alloy component or to increase the portion of the latter in the molten metal, a blank mixture has an alloy element containing the alloy component or being made of the latter, from water and a binding agent, and the blank mixture is processed into an alloy blank that can be placed in the melting furnace. At least as much water is added so that the blank mixture can be poured, and at least as much binding agent is added so that the alloy blank has a strength of at least 4/Nmm2 after at the latest seven days setting time at 20° C., preferably at least 5 N/mm2. The blank mixture is poured into a casting mold and setting takes place without applying external pressing, with the alloy blank thus produced being removed from the mold.
    Type: Application
    Filed: July 8, 2011
    Publication date: July 5, 2012
    Inventor: Daniel Thomy
  • Patent number: 8110019
    Abstract: The present invention is based on a novel electric induction furnace design that enables the removal of zinc-containing filter dust (FD) originating from the production of steel (alloy or non-alloy) and the production of cast iron with galvanized steel scrap, using a novel process based on the carbothermal reduction of the metal oxides present in the FD, performed at the temperature at which the materials are melted inside the electric induction furnace. The electric induction furnace of the invention incorporates an electric arc or plasma beam generator to melt all the inorganic non-metallic material. The incorporation of this generator also enables the use of large volumes of molten slag.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: February 7, 2012
    Assignee: Consejo Superior De Investigaciones Cientificas
    Inventor: Miguel Fernández López
  • Publication number: 20110319270
    Abstract: An apparatus for melting down metal pieces and/or metal powders in a heat-resistant crucible which is enclosed by at least one coil arrangement generating a DC magnetic field predominantly penetrating the crucible transversely to its central axis and inducing short-circuit currents during rotation of the crucible around its central axis. The coil arrangement comprises at least one superconducting winding in a cryostat and a lowerable stamp rotates in the same direction as the crucible.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 29, 2011
    Applicant: ZENERGY POWER GMBH
    Inventors: Jens Mueller, Jens Krause
  • Patent number: 8043400
    Abstract: The Inventive System disclosed herein relates to an improved system for extracting metals from ore.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 25, 2011
    Inventors: Thomas E. Stephens, Vaughn K. Boyman, Joseph A Diaz, Christopher E. Gordon, Gerald Engdahl
  • Patent number: 8034150
    Abstract: A system and process for reclaiming nickel and cadmium from a feed source such as Ni—Cd batteries. The feed source is shredded to produce feed particles, screened to size the particles, magnetically separated to remove non-metallic materials, and induction heated to generate nickel and cadmium products.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: October 11, 2011
    Assignee: Metal Conversion Technologies, LLC
    Inventor: John A. Patterson
  • Publication number: 20110197707
    Abstract: A method for reducing oxidic slags and dusts possibly loaded with organics uses an inductively heatable coke bed extending in the axial direction and having a temperature gradient. Reaction gas is sucked off in an axial region of the coke bed between two induction bodies and metal regulus and slag melt are tapped on the lower end. An inductively heatable shaft furnace chargeable with a lumpy coke bed for the reduction of metallic slags is made of an electrically insulating refractory material, has an adjustable temperature gradient includes at least one cooled induction body on the head side, a suction connection in an axial region where the prevailing temperature exceeds the condensation point of the substances to be removed, located below the cooled induction body on the head side, and an opening for tapping metal regulus and slag melt is provided on the lower end of the furnace.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 18, 2011
    Applicant: SGL Carbon SE
    Inventor: Alfred Edlinger
  • Publication number: 20110192254
    Abstract: The present invention relates to an induction furnace for melting of metals that do not connect inductively in solid state. The induction furnace has a lining comprising a mixture of graphite and silicon carbide and has an electric conductivity higher than the electrical conductivity of the metal to be melted when metal is in solid state, but lower than the electrical conductivity of the metal to be melted when the metal is in molten state. The invention further relates to a lining for induction furnace and to a method for producing such lining.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 11, 2011
    Applicant: ELKEM CARBON AS
    Inventors: Bjørn EGELAND, Alf HÅBERG, Stian MADSHUS, Johan Arnold JOHANSEN
  • Publication number: 20110179907
    Abstract: In a method for processing and/or reducing solid or molten materials and/or pyrophoric materials, in particular shredder light fractions, the solid or molten materials are charged onto an at least partially inductively heated graphite body, wherein reducing agents different from the carbon of the graphite are introduced, the flowing-off reduced and/or degassed melt is collected, wherein the reducing agents are introduced together with the solid or molten charging materials, and, as said reducing agents, natural gas, hydrocarbons, hydrogen, carbon monoxide and/or ammonia are introduced along with water vapor, oxygen, carbon dioxide and/or halogens or hydrogen halides. (FIG.
    Type: Application
    Filed: August 25, 2009
    Publication date: July 28, 2011
    Applicant: SGL CARBON SE
    Inventor: Alfred Edlinger
  • Patent number: 7927398
    Abstract: A multistage electromagnetic purification method of molten metal, which employs a multistage separator composed of two or more multichannel straight-pass separators bonded together with inorganic high-temperature adhesive. Each stage of the separators is set up in such a manner that the region of centerline of each channel in the former separators is occupied by the sidewall of the next separators at the corresponding position therein; while simultaneously the position in the next separators becomes a region close to sidewall. The multistage separator eliminates the “dead zone” of electromagnetic separation, realizes the transformation from “weak zone” to “strong zone” of electromagnetic separation, and significantly increases removal efficiency of inclusions in the melt with great volume under the effect of induced magnetic field.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: April 19, 2011
    Assignee: Shanghai Jiao Tong University
    Inventors: Da Shu, Jun Wang, Haiyan Chen, Baode Sun
  • Patent number: 7905940
    Abstract: In a method for reducing metal-oxidic slags or glasses and/or degassing mineral melts, solid particles and/or melts are charged onto an at least partially inductively heated bed or column containing lumpy coke, and the reduced and/or degassed melt running off is collected. The device for reducing metal-oxidic slags or glasses and/or degassing mineral melts, which includes a charging opening (1) for solid or molten material and a tap opening (12) for the treated melt, is characterized by a tubular or channel-shaped housing (3) for the reception of lumpy coke (6), and a heating means surrounding the housing and including at least one induction coil (7, 8, 9).
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: March 15, 2011
    Assignee: SGL Carbon SE
    Inventor: Alfred Edlinger
  • Publication number: 20110036099
    Abstract: A method for producing an intermetallic compound, the method comprising: (1) providing components A, B and X; and forming by solid state reaction of components A, B and X an intermetallic compound having a filled skutterudite structure and formula of AaBbXc; (2) melting the intermetallic compound having a filled skutterudite structure produced in step (1) in the presence of additional X; and (3) annealing the intermetallic compound of step (2) in the presence of additional X at a temperature equal to, or greater than the phase formation temperature of the intermetallic compound.
    Type: Application
    Filed: December 19, 2008
    Publication date: February 17, 2011
    Inventor: Mazhar Ali Bari
  • Publication number: 20110033335
    Abstract: One aspect is a method for producing an alloy, whereby the alloy includes at least a first metal and a second metal, whereby firstly a powder metallurgical route and subsequently a melt metallurgical route is used sequentially in order to generate the alloy from the, at least, first metal and the second metal. The method includes grinding the first metal into a first metal powder, grinding the second metal into a second metal powder, mixing the first metal powder and the second metal powder to produce a blended powder, generating a blended body from the blended powder by the powder metallurgical route, and generating the alloy by melting the blended body by the melt metallurgical route.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Applicant: W. C. HERAEUS GMBH
    Inventors: Herwig Schiefer, Christoph Vogt, Heiko Specht, Jens Troetzschel
  • Publication number: 20100326237
    Abstract: The present invention relates to new compositions of matter, particularly metals and alloys, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique electronic character.
    Type: Application
    Filed: February 23, 2010
    Publication date: December 30, 2010
    Inventor: Christopher J. Nagel
  • Publication number: 20100272598
    Abstract: Disclosed herein are a lead-free solder alloy and a manufacturing method thereof. More specifically, disclosed are: a lead-free solder alloy, which comprises 0.8-1.2 wt % silver (Ag), 0.8-1.2 wt % copper (Cu), 0.01-1.0 wt % palladium (Pd), 0.001-0.1 wt % tellurium (Te), and a balance of tin (Sn), and thus has a melting point similar to those of prior lead-free solder alloys, excellent wettability, very low segregation ratio, and excellent weldability with a welding base metal, such that it improves temperature cycle performance and drop impact resistance simultaneously, when it is applied to electronic devices and printed circuit boards; a manufacturing method of the above alloy; and electronic devices and printed circuit boards which include the same.
    Type: Application
    Filed: September 4, 2008
    Publication date: October 28, 2010
    Applicant: DUKSAN HI-METAL CO., LTD.
    Inventors: Kang Hee Kim, Yong Cheol Chu, Myoung Ho Chun, Sang Ho Jeon, Hyun Kyu Lee
  • Publication number: 20100242675
    Abstract: The present invention is based on a novel electric induction furnace design that enables the removal of zinc-containing filter dust (FD) originating from the production of steel (alloy or non-alloy) and the production of cast iron with galvanised steel scrap, using a novel process based on the carbothermal reduction of the metal oxides present in the FD, performed at the temperature at which the materials are melted inside the electric induction furnace. The electric induction furnace of the invention incorporates an electric arc or plasma beam generator to melt all the inorganic non-metallic material. The incorporation of this generator also enables the use of large volumes of molten slag.
    Type: Application
    Filed: October 3, 2008
    Publication date: September 30, 2010
    Applicant: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
    Inventor: Miguel Fernández López
  • Patent number: 7785389
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method includes avoiding the formation of islands of materials that are fed into the channel induction furnace. The method also involves breaking up islands of materials that are formed within the channel induction furnace. The method further involves adding a heat-conducting metal material into the channel induction furnace together with the feed material.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 31, 2010
    Assignee: Heritage Environmental Services, LLC
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Patent number: 7776127
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method involves the use a variety of feed materials that contribute to the molten metal product and/or the vapor phase metal product and/or the slag product and/or function as a binder for briquetting or pelletizing the feed material.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 17, 2010
    Assignee: Heritage Environmental Services, LLC
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Patent number: 7776126
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method includes applying a controlled vacuum on the headspace of the channel induction furnace to controlling the amount of ambient air that enters the furnace or adding oxygen into the channel induction furnace. The method also includes controlling the carbon concentration in the molten bath in the channel induction furnace to control the fluidity of the bath.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 17, 2010
    Assignee: Heritage Environmental Services, LLC
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Patent number: 7753986
    Abstract: The present invention relates to a process wherein an intermediate form of titanium, namely titanium sponge, is produced by reduction of a feedstock of titanium in a reactant liquid bath, where the feedstock, titanium tetrachloride, is reduced by molten magnesium to titanium sponge, and the reactant liquid bath is inductively stirred during the reduction process. The reduction process with induced stirring is performed in an electric induction cold crucible, with or without a liner. Subsequent purification and melting of the titanium sponge can be accomplished in the electric induction cold crucible so that purified titanium can be supplied from the cold crucible.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: July 13, 2010
    Assignee: Inductotherm Corp.
    Inventor: Oleg S. Fishman
  • Patent number: 7740681
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. A molten metal bath is maintained in the channel induction furnace and the method includes adding a reductant such as carbon or a carbon containing material directly into the molten metal bath independently of the feed material.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: June 22, 2010
    Assignee: Heritage Environmental Services, LLC
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Patent number: 7736586
    Abstract: There is provided a melting furnace with an agitator. The melting furnace with an agitator includes a melting furnace that contains melt, and an agitator that agitates the melt by an electromagnetic force. The agitator includes a first electrode that is provided at an arbitrary position of the melting furnace so as to come in contact with the melt contained in the melting furnace, a second electrode that is provided near a bottom wall of the melting furnace so as to come in contact with the melt, a first magnetic field device that is provided outside the melting furnace so as to face the bottom wall of the melting furnace and makes a north pole face the bottom wall, and a second magnetic field device that is provided outside the melting furnace so as to face the bottom wall of the melting furnace and makes a south pole face the bottom wall. The first and second magnetic field devices are disposed with a gap in a certain direction.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: June 15, 2010
    Inventor: Kenzo Takahashi
  • Patent number: 7727302
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method involves maintaining a slag layer on the molten bath that has a thickness that is sufficient to support the feed material while minimizing heat transfer through the slag layer and minimizing the resistance of vapor phase components from transferring through the slag layer. The fluidity of the slag layer is controlled by heating the slag layer and adjusting the chemistry of the slag layer.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: June 1, 2010
    Assignee: Heritage Environmental Services, LLC
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Publication number: 20100080726
    Abstract: A composition suitable for use as a target containing antimony to be irradiated by accelerated charged particles (e.g., by protons to produce tin-117m) comprises an intermetallic compound of antimony and titanium which is synthesized at high-temperature, for example, in an arc furnace. The formed material is powdered and melted in an induction furnace, or heated at high gas pressure in gas static camera. The obtained product has a density, temperature stability and heat conductivity sufficient to provide appropriate target material.
    Type: Application
    Filed: April 16, 2009
    Publication date: April 1, 2010
    Inventors: Yurii D. Seropeghin, Boris L. Zhuikov
  • Publication number: 20100031771
    Abstract: In a method for reducing oxidic slags and dusts possibly loaded with organics, using an inductively heatable coke bed extending in the axial direction and having a temperature gradient, reaction gas is sucked off in an axial region of the coke bed between two induction bodies and the metal regulus as well as the slag melt are tapped on the lower end of the coke bed.
    Type: Application
    Filed: December 10, 2007
    Publication date: February 11, 2010
    Inventor: Alfred Edlinger
  • Publication number: 20090266200
    Abstract: In a method for reducing metal-oxidic slags or glasses and/or degassing mineral melts, solid particles and/or melts are charged onto an at least partially inductively heated bed or column containing lumpy coke, and the reduced and/or degassed melt running off is collected. The device for reducing metal-oxidic slags or glasses and/or degassing mineral melts, which includes a charging opening (1) for solid or molten material and a tap opening (12) for the treated melt, is characterized by a tubular or channel-shaped housing (3) for the reception of lumpy coke (6), and a heating means surrounding the housing and including at least one induction coil (7, 8, 9).
    Type: Application
    Filed: January 19, 2006
    Publication date: October 29, 2009
    Inventor: Alfred Edlinger
  • Publication number: 20090229408
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 17, 2009
    Inventors: James E. Bratina, Thomas Edward Roberts
  • Publication number: 20090229406
    Abstract: A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method involves maintaining a slag layer on the molten bath that has a thickness that is sufficient to support the feed material while minimizing heat transfer through the slag layer and minimizing the resistance of vapor phase components from transferring through the slag layer. The fluidity of the slag layer is controlled by heating the slag layer and adjusting the chemistry of the slag layer.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 17, 2009
    Inventors: James E. Bratina, Thomas Edward Roberts