EP1045040B1 - Additif pour ajouter des métaux aux alliages d'aluminium - Google Patents

Additif pour ajouter des métaux aux alliages d'aluminium Download PDF

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Publication number
EP1045040B1
EP1045040B1 EP99500058A EP99500058A EP1045040B1 EP 1045040 B1 EP1045040 B1 EP 1045040B1 EP 99500058 A EP99500058 A EP 99500058A EP 99500058 A EP99500058 A EP 99500058A EP 1045040 B1 EP1045040 B1 EP 1045040B1
Authority
EP
European Patent Office
Prior art keywords
aluminium
metals
powder
additive
added
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.)
Expired - Lifetime
Application number
EP99500058A
Other languages
German (de)
English (en)
Other versions
EP1045040A1 (fr
Inventor
Francisco Diaz Maruri
Aitor Arco González
Tomás Posada Fernández
Javier Elustondo Amorrortu
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.)
Bostlan SA
Original Assignee
Bostlan SA
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 Bostlan SA filed Critical Bostlan SA
Priority to DE69923158T priority Critical patent/DE69923158D1/de
Priority to EP99500058A priority patent/EP1045040B1/fr
Priority to AT99500058T priority patent/ATE286990T1/de
Publication of EP1045040A1 publication Critical patent/EP1045040A1/fr
Application granted granted Critical
Publication of EP1045040B1 publication Critical patent/EP1045040B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium
    • 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
    • B22F1/09—Mixtures of metallic powders
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Definitions

  • This invention relates to an additive for adding one or more metals in aluminium alloys, as well as the way the metals are added into a melting aluminium.
  • Reference GB-A-2.267.455 proposes the application of waxes in a different field: the powder metallurgy.
  • US 4581069 describes the formation of a master alloy by compacting non-spherical particles and using an organic binder, which is burnt off as the master alloy briquette is introduced into the molten metal mass.
  • the additive of this invention When inserted into the melting aluminium, the additive of this invention yields important improvements, collected in the following aims:
  • the invention claims an additive for adding one or more metals in the aluminium alloys.
  • This additive contains:
  • the weight proportions in the final mixture are:
  • any aluminium alloy containing acceptable amounts of materials with a unfavourable effect in the final aluminium alloy can be used as the component (a), but it is better to use as pure as possible aluminium, so commercially pure aluminium is recommended for component (a).
  • the best weight proportion (A) for the aluminium component should satisfy A ⁇ 49.9%. A proportion about 20% is preferred.
  • additives are used in order to add metals of higher melting point than that of the aluminium into the melting aluminium, for example, manganese, chromium, tungsten, molybdenum, titanium, vanadium, iron, cobalt, copper, niobium, nickel, tantalum, zirconium, hafnium, and silver, and, especially, manganese, chromium, titanium, iron and copper.
  • the metallic component added is usually formed by one or more commercially pure metals, but it can be one or more alloys of such metals, taking into account that this alloy or alloys should not lead to unacceptable amounts of undesirable compounds into the melting aluminium.
  • one or more metals can be added using an additive according to this invention, and other procedures can be used for inserting the rest of the metals.
  • the different metals to be added by means of an additive according to this invention should be present in the additive as:
  • the weight proportion (B) for the component (b) should satisfy the condition: 50% ⁇ B ⁇ 95%. This condition makes the metallic component (b) to reach reasonable concentrations in the additive whereas high dissolution rates and recoveries of the added metal are obtained. A proportion between 75% and 80% is preferred for B.
  • the flux must be a wax. Any kind of wax can be used, but it should rather be a non-polar one. More specifically, a wax with no impurities being harmful for the melting aluminium, for example, paraffin or polyethylene waxes, should be used.
  • a highly recommended additive includes commercially pure aluminium for the component (a), with A values about 19%, B values about 80% and C values about 1%.
  • the more desirable products for the additives described in this paragraph are commercially pure chromium, commercially pure manganese, commercially pure iron or commercially pure titanium.
  • the particle sizes of the aluminium component and that of the added metal component should preferably be less than 1 mm.
  • the size of the wax particles should preferably be less than 0,5 mm.
  • Components are easier to insert and maintain into the melting aluminium when they are added by means of a body formed by compression of its components.
  • Such bodies should be formed by compressing powdered mixtures of components (a), (b) and (c) using, for example, a press or an horizontal hydraulic machine for produce tablets.
  • the melting aluminium bath to be alloyed can be commercially pure, which is usually known as primary aluminium, or an alloy from a secondary melting.
  • the mixtures were pressed in a vertical hydraulic press to give them a tablet shape, with about 90 mm diameter and 25 mm height.
  • the tablets contained exactly 500 g of manganese and the total weight was about 625 g.
  • the tablets were named ALMEN 0,5-80M.
  • the mixtures were pressed in an horizontal hydraulic press to give them a briquette shape, with about 40,5 mm diameter and 40 mm height.
  • the total weight of the briquettes is 200 g and they contain 150 g of manganese.
  • the briquettes were named ALMEN 275M.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Claims (4)

  1. Un additif pour ajouter un ou plusieurs métaux dans des alliages d'aluminium qui comprend :
    (a) une poudre agglutinante comprenant de l'aluminium, du magnésium ou un mélange ou un alliage;
    (b) une poudre d'un ou plusieurs métaux ou alliages comprenant celui ou ceux à ajouter, par exemple, le manganèse, le chrome, le tungstène, le molybdène, le titane, le vanadium, le fer, le cobalt, le cuivre, le niobium, le nickel, le tantale, le zirconium, l'hafnium, l'argent, le plomb, le zinc,
    (c) un composé organique de type cire, suivant les proportions de poids suivantes dans le mélange final: de >0% à 49,9% pour le composant (a), de 50% à 95% pour le composant (b) et de 0,1% à 5% pour le composant (c).
  2. Un additif pour l'introduction d'un ou plusieurs métaux dans les alliages d'aluminium, selon la revendication 1, caractérisé en ce que le composant (a) est une poudre d'aluminium commercial.
  3. Un additif pour l'introduction d'un ou plusieurs métaux dans les alliages d'aluminium, selon la revendication 1, caractérisé en ce que le composant (a) est une poudre d'aluminium et de magnésium.
  4. Un additif pour l'introduction d'un ou plusieurs métaux dans les alliages d'aluminium, selon la revendication 1, caractérisé en ce que le composant (a) est une poudre de magnésium commercial.
EP99500058A 1999-04-15 1999-04-15 Additif pour ajouter des métaux aux alliages d'aluminium Expired - Lifetime EP1045040B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69923158T DE69923158D1 (de) 1999-04-15 1999-04-15 Zusatzmittel zur Zuführung von Metallen in Aluminiumlegierungen
EP99500058A EP1045040B1 (fr) 1999-04-15 1999-04-15 Additif pour ajouter des métaux aux alliages d'aluminium
AT99500058T ATE286990T1 (de) 1999-04-15 1999-04-15 Zusatzmittel zur zuführung von metallen in aluminiumlegierungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99500058A EP1045040B1 (fr) 1999-04-15 1999-04-15 Additif pour ajouter des métaux aux alliages d'aluminium

Publications (2)

Publication Number Publication Date
EP1045040A1 EP1045040A1 (fr) 2000-10-18
EP1045040B1 true EP1045040B1 (fr) 2005-01-12

Family

ID=8242493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99500058A Expired - Lifetime EP1045040B1 (fr) 1999-04-15 1999-04-15 Additif pour ajouter des métaux aux alliages d'aluminium

Country Status (3)

Country Link
EP (1) EP1045040B1 (fr)
AT (1) ATE286990T1 (fr)
DE (1) DE69923158D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EE05521B1 (et) * 2007-12-14 2012-02-15 Mihhail@Terehhov Alumiiniumip hine ligatuur metallisulamite mangaaniga legeerimiseks selle saamise meetod ja selle kasutamine
ES2395550B1 (es) * 2011-06-20 2013-12-19 Consejo Superior De Investigaciones Científicas (Csic) COMPOSICIÓN Y PROCEDIMIENTO DE OBTENCIÓN DE TABLETAS DE Mn
DE202016001530U1 (de) * 2016-03-09 2017-06-12 TWI GmbH Pulvermetallurgisch hergestelltes manganhaltiges Vormaterial zur Herstellung einer Leichtmetalllegierung sowie seine Verwendung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2112020B (en) * 1981-12-23 1985-07-03 London And Scandinavian Metall Introducing one or more metals into a melt comprising aluminium
GB2117411A (en) * 1982-03-29 1983-10-12 British Steel Corp Metallurgical additive briquettes
US4581069A (en) * 1982-12-29 1986-04-08 Aluminum Company Of America Master alloy compacted mass containing non-spherical aluminum particulate
FR2608478B1 (fr) * 1986-12-22 1989-06-02 Delachaux Sa Procede de realisation de boulets chrome-aluminium pour l'ajout de chrome dans des bains d'aluminium en fusion
US5342573A (en) * 1991-04-23 1994-08-30 Sumitomo Electric Industries, Ltd. Method of producing a tungsten heavy alloy product

Also Published As

Publication number Publication date
DE69923158D1 (de) 2005-02-17
EP1045040A1 (fr) 2000-10-18
ATE286990T1 (de) 2005-01-15

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