EP2379254A1 - Procédé pour modifier des métaux en fusion - Google Patents

Procédé pour modifier des métaux en fusion

Info

Publication number
EP2379254A1
EP2379254A1 EP10710177A EP10710177A EP2379254A1 EP 2379254 A1 EP2379254 A1 EP 2379254A1 EP 10710177 A EP10710177 A EP 10710177A EP 10710177 A EP10710177 A EP 10710177A EP 2379254 A1 EP2379254 A1 EP 2379254A1
Authority
EP
European Patent Office
Prior art keywords
molten metal
particles
metal
metallic coating
melting point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10710177A
Other languages
German (de)
English (en)
Inventor
Stefan Sepeur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nano X GmbH
Original Assignee
Nano X GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nano X GmbH filed Critical Nano X GmbH
Publication of EP2379254A1 publication Critical patent/EP2379254A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/08—Metallic powder characterised by particles having an amorphous microstructure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof

Definitions

  • the invention relates to a method for modifying molten metals by additives.
  • the invention is therefore based on the object to provide a new method for modifying molten metal by additives, in which the discharge of the additives is avoided.
  • This object is achieved in that particles, fibers or hollow spheres are added to the molten metal and these are provided before addition to the molten metal with a metallic coating, wherein the melting point of the metallic coating is above the molten metal.
  • the invention is based on the finding that, in the presence of a metallic coating which also continues to exist in the molten metal, particles, fibers or hollow spheres whose chemical composition resembles or is compatible with the composition of the molten metal, the particles, fibers or hollow spheres Solidification of the molten metal are firmly and homogeneously involved in this, since they have outward - to the molten metal - yes corresponding metallic properties. The only prerequisite is that the particles or fibers are stable to high temperatures.
  • the molten metal consists of the elements aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, niobium, molybdenum, ruthenium, rhodium, palladium, silver, cadmium, indium, tin, Hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, mercury, tellurium, lead, bismuth, polonium, as well as mixtures or alloys thereof.
  • the particles or fibers consist of salts, in particular oxides, phosphates, silicates, sulfites, nitrates, nitrites, sulfides, carbides, sulfates, carbonates or halides, aluminum (III) oxide, calcium (II) carbonate, barium (II) sulfate, copper (II) sulfate, iron (III) oxide, silicon dioxide, titanium (IV) carbide, tin dioxide, titanium dioxide, magnetite, aluminum (III) chloride, chromium (III) nitrate, iron (III) nitrate, hafnium (IV) carbide, hafnium (IV) nitrite, zirconium dioxide, titanium (IV) nitrite, vandium carbide, tungsten carbide, boron (III) carbide, silicon nitride, silicon carbide, vanadium oxide, magnesium oxide, from minerals, in particular gypsum, s
  • a preferred embodiment of the invention is that the particle size of the particles is in the micrometer, submicrometer or nanometer range.
  • the metallic coating be applied to the particles, fibers or hollow spheres by wet chemical processes, powder metallurgy processes, electrochemical processes (e.g., redox reactions, electroplating), vapor deposition or plasma processes.
  • the invention is further associated that the melting point of the metallic coating at least 20 0 C, preferably 100 to 800 0 C is above the melting point of the molten metal.
  • the glass transition temperature Tg of the metal coating is below the temperature of the molten metal, so that alloying between molten metal and surface phase can occur as a result of the partial softening of the surface, also as a gradient.
  • the skilled person can determine the respectively suitable material for the metallic coating. It should be noted that the metal coating on the particle is not or only with difficulty soluble in the molten metal.
  • the proportion of particles in the molten metal is 0.1 to 75 wt .-%, preferably between 1 and 50 wt .-%, particularly preferably 2 to 40 wt .-%.
  • one or more physical or chemical properties in particular the hardness, the modulus of elasticity, the electrical properties, the magnetic properties, the electrical conductivity, the thermal conductivity, the ductility, the coefficient of friction, the melting point, the scaling tendency or the corrosion tendency to be modified.
  • the hardness of articles of gold or gold alloys can be increased, steels of lower weight and greater hardness or elasticity can be produced, Metals are provided with a corrosion, scale or tarnish protection, a change in the electrical and magnetic properties to superparamagnetic properties, a modified processing capability or tribologically active particles are incorporated into a molten metal or the resulting metal.
  • the inventive method is suitable for the production of metal products, in particular of steel products.
  • These may be rods, tubes, engine and vehicle parts, sheets, components or assemblies for mechanical engineering, vehicle construction, construction, process engineering, aerospace, power plant technology, electrical engineering, medical technology, the sporting goods industry, the garden - and landscaping, tool making, agricultural machinery, the furniture industry, the household appliance industry, the household appliance industry, the toy and sporting goods industry, the camping industry, construction, heating and air conditioning, materials handling, for oil platforms, jewelry, roads, cranes, sanitary ware as well as the lighting technology.
  • 100 g of an aqueous aluminum oxide nanopowder suspension with 20% by weight of solid are mixed with 5 g of sodium thiosulfate and 20 g of Au 2 S and stirred for 24 h with heating to 80 0 C. Thereafter, the gold-coated nanoparticles are freed from the solvent in vacuo. If these gold-coated Aluminiumoxidnanopitate in a metallic silver melt in a concentration of 20% by weight, the particles are distributed homogeneously and form a homogeneous distribution of alumina particles in a gold-silver alloy even after solidification of the melt.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un procédé pour la modification de métaux en fusion par des additifs. L'invention vise à créer un nouveau procédé de modification de métaux en fusion permettant d'éviter le rejet des additifs. A cet effet, on ajoute au métal en fusion des particules, des fibres ou des billes creuses qui, avant leur ajout au métal en fusion, ont été munies d'un revêtement métallique dont le point de fusion est supérieur à celui du métal en fusion. L'invention fournit ainsi un procédé qui permet de modifier les propriétés du métal en fusion et donc également celles du métal résultant.
EP10710177A 2009-01-20 2010-01-18 Procédé pour modifier des métaux en fusion Withdrawn EP2379254A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009005537A DE102009005537A1 (de) 2009-01-20 2009-01-20 Verfahren zum Modifizieren von Metallschmelzen
PCT/DE2010/075007 WO2010083826A1 (fr) 2009-01-20 2010-01-18 Procédé pour modifier des métaux en fusion

Publications (1)

Publication Number Publication Date
EP2379254A1 true EP2379254A1 (fr) 2011-10-26

Family

ID=42173239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10710177A Withdrawn EP2379254A1 (fr) 2009-01-20 2010-01-18 Procédé pour modifier des métaux en fusion

Country Status (3)

Country Link
EP (1) EP2379254A1 (fr)
DE (1) DE102009005537A1 (fr)
WO (1) WO2010083826A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US9707739B2 (en) 2011-07-22 2017-07-18 Baker Hughes Incorporated Intermetallic metallic composite, method of manufacture thereof and articles comprising the same
US9033055B2 (en) 2011-08-17 2015-05-19 Baker Hughes Incorporated Selectively degradable passage restriction and method
US9010416B2 (en) 2012-01-25 2015-04-21 Baker Hughes Incorporated Tubular anchoring system and a seat for use in the same
US9816339B2 (en) 2013-09-03 2017-11-14 Baker Hughes, A Ge Company, Llc Plug reception assembly and method of reducing restriction in a borehole
US10689740B2 (en) 2014-04-18 2020-06-23 Terves, LLCq Galvanically-active in situ formed particles for controlled rate dissolving tools
US11167343B2 (en) 2014-02-21 2021-11-09 Terves, Llc Galvanically-active in situ formed particles for controlled rate dissolving tools
US10865465B2 (en) 2017-07-27 2020-12-15 Terves, Llc Degradable metal matrix composite
CA2936851A1 (fr) 2014-02-21 2015-08-27 Terves, Inc. Systeme metallique de desintegration a activation par fluide
US10378303B2 (en) 2015-03-05 2019-08-13 Baker Hughes, A Ge Company, Llc Downhole tool and method of forming the same
US10221637B2 (en) 2015-08-11 2019-03-05 Baker Hughes, A Ge Company, Llc Methods of manufacturing dissolvable tools via liquid-solid state molding
US10016810B2 (en) 2015-12-14 2018-07-10 Baker Hughes, A Ge Company, Llc Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028234A (en) * 1961-03-03 1962-04-03 Du Pont Process for producing mixture of refractory metal oxides and metal and product thereof
FR95986E (fr) * 1968-03-25 1972-05-19 Int Nickel Ltd Alliages graphitiques et leurs procédés de production.
AU615265B2 (en) * 1988-03-09 1991-09-26 Toyota Jidosha Kabushiki Kaisha Aluminum alloy composite material with intermetallic compound finely dispersed in matrix among reinforcing elements
US5228494A (en) * 1992-05-01 1993-07-20 Rohatgi Pradeep K Synthesis of metal matrix composites containing flyash, graphite, glass, ceramics or other metals
BR9307499A (pt) * 1992-11-19 1999-06-01 Sheffield Forgemasters Processo de fabricar metal ferroso para construções produto metálico ferroso para construções processo para fabricar rolo laminador e processo para fabricar produto fundido rotativo
DE19813176C2 (de) * 1998-03-25 2000-08-24 Fraunhofer Ges Forschung Verfahren zur Herstellung von Verbundwerkstoffbauteilen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010083826A1 *

Also Published As

Publication number Publication date
DE102009005537A1 (de) 2010-07-29
WO2010083826A1 (fr) 2010-07-29

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