EP4194575A1 - Ajout de calcium et de vanadium à des alliages almg - Google Patents

Ajout de calcium et de vanadium à des alliages almg Download PDF

Info

Publication number
EP4194575A1
EP4194575A1 EP21213909.1A EP21213909A EP4194575A1 EP 4194575 A1 EP4194575 A1 EP 4194575A1 EP 21213909 A EP21213909 A EP 21213909A EP 4194575 A1 EP4194575 A1 EP 4194575A1
Authority
EP
European Patent Office
Prior art keywords
alloy
aluminium
added
molten state
production
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.)
Pending
Application number
EP21213909.1A
Other languages
German (de)
English (en)
Inventor
Stuart Wiesner
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.)
Aluminium Rheinfelden Alloys GmbH
Original Assignee
Aluminium Rheinfelden Alloys 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 Aluminium Rheinfelden Alloys GmbH filed Critical Aluminium Rheinfelden Alloys GmbH
Priority to EP21213909.1A priority Critical patent/EP4194575A1/fr
Priority to CA3240203A priority patent/CA3240203A1/fr
Priority to PCT/EP2022/084184 priority patent/WO2023104652A1/fr
Publication of EP4194575A1 publication Critical patent/EP4194575A1/fr
Pending 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
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • 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

Definitions

  • the present invention relates to a process for producing an aluminium-magnesium alloy and to an alloy produced by the process.
  • Be beryllium
  • beryllium is mentioned for reducing the oxidation tendency of AlMg melts.
  • EP3159422 A1 is added to an AlMg 5 Si 2 Mn alloy.
  • One object is to provide a process which provides for the addition of an element or a combination of elements which cause a catalytic reaction and thus promote the formation of a passivation layer on the aluminium melt. By forming the passivation layer, further oxidation of the molten metal and thus undesirable formation of dross is prevented.
  • the process according to the invention is directed towards the production of an aluminium-magnesium alloy with a content of at least 1 % Mg, preferably 1 - 7% Mg, more preferably at least 2% Mg, preferably 2 - 7% Mg.
  • a content of at least 1 % Mg preferably 1 - 7% Mg, more preferably at least 2% Mg, preferably 2 - 7% Mg.
  • 0.01 - 2% calcium (Ca) and 0.01 - 0.3% V are added in the molten state.
  • 0.05% - 1 % Ca is added to the alloy in the molten state.
  • Ca and V are added as aluminium master alloy during the production of the aluminium-magnesium alloy, preferably the first master alloy contains 10% Ca and 90% Al and the second master alloy contains 10% V and 90% Al.
  • Ca and V are added at a melt temperature of 680 - 750°C.
  • At least one of the following elements is added to the alloy in the molten state: Iron (Fe), Manganese (Mn), Strontium (Sr), Phosphorus (P), Nickel (Ni), Zinc (Zn), Copper (Cu), Silicon (Si), Titanium (Ti), Chromium (Cr), Molybdenum (Mo), Zirconium (Zr), Hafnium (Hf), Gallium (Ga), Boron (B).
  • the following elements are added to the alloy in the molten state in addition to Al, Mg, Ca and V, either individually or as a master alloy:
  • this defines a molten metal with a temperature of preferably 680 to 750°C, in which Ca and V can dissolve completely and all other alloying elements are completely dissolved.
  • the alloy produced by the process according to the invention is a die-cast alloy.
  • An Al-Mg alloy produced by the process according to the invention consists of the following elements:
  • an element or element group selected from the group consisting of Cr, Ni, Mo, Zr, Hf, Ga and B, and the balance Al and unavoidable impurities.
  • AlMg alloy which is to be protected against oxidation, is left in ambient air at a defined temperature for a certain time in an open crucible. Then the formation of the oxide layer is determined.
  • a visible oxide layer appears after a few days, the strength of which is significantly higher than in Al alloys without a Mg content.
  • the following 15 test trials were carried out at the Tech Center Rheinfelden.
  • the alloys were produced in an open, electrically heated crucible furnace.
  • high-pressure die casting trials were carried out and the melt was left in ambient air.
  • the casting tests were carried out on a 400 to die casting cell and the produced test plates had the dimensions 260 ⁇ 60 ⁇ 3 mm.
  • Tensile specimens were taken from these test plates and the mean values of six specimens were determined.
  • 8 kg of melt per test trial was transferred to a small, open crucible. Three of these small crucibles were placed in a larger, electrically heated crucible furnace and left to stand at 700°C for 3 or 10 days.
  • compositions V1 to V15 are compositions without beryllium.
  • Beryllium is known as an element for improving the oxidation tendency of an AlMg alloy and would falsify the evaluation of the effect of Ca and V.
  • the formation of the oxide layer which could be improved with the addition of Ca and V, was assessed on the basis of three predefined classes.
  • the aim is an oxide layer according to type A.
  • Type B is classified as a poor result and type C as a very poor result for the formation of the oxide layer. This classification, as used in the following examples, is explained in more detail below.
  • Type A Very thin oxide layer, which moves with the molten metal. It does not resist mechanical action.
  • Type B Thin, semi-solid oxide layer that breaks into pieces when the melt moves. Little resistance to mechanical action.
  • Type C Solid oxide layer that does not move with the melt. Considerable resistance to mechanical action. No Si Fe Cu Mn Mg Ca V Ti V1 0,04 1,6 0,001 0,006 4,25 0,00 0,025 0,002 V2 0,04 1,6 0,002 0,005 4,25 0,10 0,025 0,002 V3 0,04 1,6 0,002 0,005 4,25 0,20 0,025 0,003 No Rm [MPa] Rp0,2 [MPa] A [%] Oxide layer 3 days 10 days V1 255 123 14,2 Typ C Typ C 5 V2 254 122 14,1 Typ B Typ B V3 255 123 13,8 Typ A Typ A No Si Fe Cu Mn Mg Ca V Ti V4 0,04 1,2 0,001 0,005 3,8 0,15 0,025 0,004 V5 0,04 1,2 0,002 0,005 3,8 0,15 0,050 0,005 V6 0,04 1,2 0,002 0,005 3,8 0,25 0,050 0,005 No Rm [MPa] Rp0,2 [MPa] A [

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP21213909.1A 2021-12-10 2021-12-10 Ajout de calcium et de vanadium à des alliages almg Pending EP4194575A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21213909.1A EP4194575A1 (fr) 2021-12-10 2021-12-10 Ajout de calcium et de vanadium à des alliages almg
CA3240203A CA3240203A1 (fr) 2021-12-10 2022-12-02 Addition de calcium et de vanadium a des alliages almg
PCT/EP2022/084184 WO2023104652A1 (fr) 2021-12-10 2022-12-02 Addition de calcium et de vanadium à des alliages almg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21213909.1A EP4194575A1 (fr) 2021-12-10 2021-12-10 Ajout de calcium et de vanadium à des alliages almg

Publications (1)

Publication Number Publication Date
EP4194575A1 true EP4194575A1 (fr) 2023-06-14

Family

ID=78844773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21213909.1A Pending EP4194575A1 (fr) 2021-12-10 2021-12-10 Ajout de calcium et de vanadium à des alliages almg

Country Status (3)

Country Link
EP (1) EP4194575A1 (fr)
CA (1) CA3240203A1 (fr)
WO (1) WO2023104652A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090156B1 (fr) 1998-06-26 2003-03-19 ALUMINIUM RHEINFELDEN GmbH Traitement d'une masse fondue d'alliage d'aluminium
CN103695739A (zh) * 2014-01-16 2014-04-02 张霞 一种经喷丸处理的铝锌铜合金板材及其制备方法
EP3159422A1 (fr) 2016-04-19 2017-04-26 Rheinfelden Alloys GmbH & Co. KG Alliage d'aluminium pour moulage sous pression
CN108330351A (zh) * 2018-04-24 2018-07-27 晋江安能建材制造有限公司 镁钛合金板及其制备方法
US20180298473A1 (en) * 2017-04-15 2018-10-18 The Boeing Company Aluminum alloy with additions of magnesium, calcium and at least one of chromium, manganese and zirconium, and method of manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090156B1 (fr) 1998-06-26 2003-03-19 ALUMINIUM RHEINFELDEN GmbH Traitement d'une masse fondue d'alliage d'aluminium
CN103695739A (zh) * 2014-01-16 2014-04-02 张霞 一种经喷丸处理的铝锌铜合金板材及其制备方法
EP3159422A1 (fr) 2016-04-19 2017-04-26 Rheinfelden Alloys GmbH & Co. KG Alliage d'aluminium pour moulage sous pression
US20180298473A1 (en) * 2017-04-15 2018-10-18 The Boeing Company Aluminum alloy with additions of magnesium, calcium and at least one of chromium, manganese and zirconium, and method of manufacturing the same
CN108330351A (zh) * 2018-04-24 2018-07-27 晋江安能建材制造有限公司 镁钛合金板及其制备方法

Also Published As

Publication number Publication date
WO2023104652A1 (fr) 2023-06-15
CA3240203A1 (fr) 2023-06-15

Similar Documents

Publication Publication Date Title
EP2471967B1 (fr) Procédé pour obtenir des propriétés mécaniques améliorées dans des moulages d'aluminium recyclés dépourvus de phases bêta en forme de plaquettes
CN106350716B (zh) 一种高强度外观件铝合金材料及其制备方法
US20200232069A1 (en) Aluminum alloy and die casting method
US11286542B2 (en) Aluminum alloy for die casting and functional component using the same
US20100288401A1 (en) Aluminum casting alloy
EP2664687B1 (fr) Produit d'alliage d'aluminium moulé à usinabilité améliorée et son procédé de fabrication
EP1882753A1 (fr) Alliage d'aluminium
CA2738973A1 (fr) Alliages de magnesium contenant des terres rares
EP1882754B1 (fr) Alliage d'aluminium
US20190119791A1 (en) Die Casting Alloy
WO2013144343A1 (fr) Alliage et son procédé de fabrication
EP2840156B1 (fr) Alliage de magnésium et son procédé de production
EP3436616B1 (fr) Alliages d'aluminium ayant des propriétés à la traction améliorées
EP3216884B1 (fr) Alliage d'aluminium pour coulée sous pression et pièce d'alliage d'aluminium moulée sous pression obtenue à partir dudit alliage
EP3342889B1 (fr) Alliage de fonderie d'aluminium
KR20210100484A (ko) 실리콘과 아연이 첨가된 고강도 다이캐스팅용 알루미늄 합금 및 그 제조방법
CN109266886B (zh) 一种含锰铁铝合金金属间化合物相的细化方法
EP4194575A1 (fr) Ajout de calcium et de vanadium à des alliages almg
KR101684300B1 (ko) 칼슘실리콘 합금분말을 이용한 마그네슘 합금 주조품의 제조방법
KR102285860B1 (ko) 고인성 주조용 알루미늄 합금 및 그 제조방법
CN113862529A (zh) 一种铝合金及其制备方法
KR102617997B1 (ko) 다이캐스팅 알루미늄 합금의 제조방법
US20210404038A1 (en) 2xxx aluminum lithium alloys
EP4101941A1 (fr) Alliage de moulage aluminium-silicium et pièces moulées fabriquées à partir dudit alliage
EP2677051A1 (fr) Pièce forgée en alliage de cuivre à haute résistance

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20231212

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR