WO2004094679A1 - Alliages a base de dechets d'aluminium recycles a haute teneur en fer et en silicium - Google Patents

Alliages a base de dechets d'aluminium recycles a haute teneur en fer et en silicium Download PDF

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Publication number
WO2004094679A1
WO2004094679A1 PCT/CA2004/000477 CA2004000477W WO2004094679A1 WO 2004094679 A1 WO2004094679 A1 WO 2004094679A1 CA 2004000477 W CA2004000477 W CA 2004000477W WO 2004094679 A1 WO2004094679 A1 WO 2004094679A1
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WO
WIPO (PCT)
Prior art keywords
iron
silicon
aluminum
range
alloys
Prior art date
Application number
PCT/CA2004/000477
Other languages
English (en)
Inventor
Adriano M. P. Ferreira
Sadashiv K. Nadkarni
Original Assignee
Alcan International Limited
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 Alcan International Limited filed Critical Alcan International Limited
Priority to BRPI0409700-9A priority Critical patent/BRPI0409700A/pt
Publication of WO2004094679A1 publication Critical patent/WO2004094679A1/fr

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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
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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
    • C22B21/0038—Obtaining aluminium by other processes
    • C22B21/0069—Obtaining aluminium by other processes from scrap, skimmings or any secondary source aluminium, e.g. recovery of alloy constituents
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • This invention relates to aluminum alloys obtained from aluminum scrap containing high levels of iron and silicon, the alloys being suitable for use in the production of can ends and can bodies, as well as building and industrial products, and to processes of manufacture thereof.
  • can end alloy is a highly engineered and rigidly controlled A/A 5182 alloy.
  • the composition and processing are controlled within strict limits.
  • the important properties are mechanical strength, earing and the ability to be released in a die after forming. For these reasons, practically every aluminum manufacturer uses the same alloy. Attempts to modify the composition have not been successful primarily because the earing and mechanical properties are significantly effected by these changes.
  • the maximum iron allowed in AA 5182 is 0.35% by weight and the maximum silicon allowed is 0.2% by weight.
  • the maximum iron allowed in AA 3104 is 0.8% by weight and the maximum silicon allowed is 0.6% by weight, but these are normally controlled at about 0.4% iron and 0.2% silicon.
  • Other aluminum alloy products that have required close control of iron and silicon contents are alloys used in building and industrial products. These are typically AA 3105, AA 5052 and AA 5010.
  • the important properties to control are mechanical strength, formability, rollability and scrap compatibility.
  • the iron is limited to less than 0.7% by weight and the silicon is limited to less than 0.4% by weight, preferably about 0.35% ( ⁇ 0.03%) and 0.37% ( ⁇ 0.03%) respectively.
  • the maximum iron is limited to less than 0.7% and the maximum silicon to less than 0.6%, preferably around 0.55% ( ⁇ 0.15%) and the maximum of 0.3% respectively.
  • AA 5052 it is generally limited to maximum iron content of less than 0.4% and the maximum silicon content of less than 0.25%, preferably around 0.25% ( ⁇ 0.15%) and a maximum of 0.08% respectively.
  • FeAl 3 or FeAl 6 iron-aluminide particles
  • Robertson et al. U.S. Patent 4,282,044, issued August 4, 1981 relates to an aluminum alloy derived in part from scrap and containing 0.1 - 1.0% silicon, 0.1 - 0.90% iron, 0.4 - 1.0% manganese, 1.3 - 2.5% magnesium, 0.005 - 0.4% copper, 0 - 0.2% titanium and the balance aluminum and incidental impurities. This alloy is primarily used for the production of containers.
  • the present invention in its broadest aspect relates to aluminum alloys that are variants of AA 3000 and AA 5000 series alloys containing higher than the usual amounts of silicon and iron.
  • the alloys containing in percentages by weight, more than 0.6 - 2.0% silicon, 0.9 - 2.4% iron, wherein the ratio of the amount of iron to the amount of silicon is in the range of 1.2 - 1.8:1.
  • Other components of the alloys may include 0 - 0.4% copper, 0 - 1.5% manganese, 0 - 5.0% magnesium, 0 - 0.5% zinc, 0 - 3.5% chromium, 0 - 0.1% titanium and the balance aluminum and incidental impurities .
  • the ratio of iron to silicon according to the invention is preferably in the range of 1.3 - 1.6:1 and a range of 1.4 - 1.5:1 is most preferred.
  • the silicon is preferably present in the range of 0.7 - 2.0%, more preferably 0.7 - 1.5%, while the preferred range for iron is 0.9 - 2.0%, with a range of 0.9 - 1.5% being most preferred.
  • an alloy is developed as a recycle friendly can end alloy.
  • This alloy contains more than 0.6 - 2.0% silicon,
  • a further embodiment is a recycled friendly aluminum alloy for making can bodies.
  • the alloy contains more than 0.6 - 1.0% silicon, 0.9 - 1.2% iron, wherein the ratio of the amount of iron to the amount of silicon is in the range of 1.2 - 1.8:1, 0 - 0.4% copper, 0.7 - 1.5% manganese, 0.8 - 1.5% magnesium, 0 - 0.50% zinc and the balance aluminum and incidental impurities.
  • FIG. 1 Further embodiments of the invention relate to variants of building and industrial product alloys AA 3105, AA 5052 and AA 5010 suitable for recycling purposes, these variants being capable of withstanding high levels of iron and silicon without an adverse affect on their mechanical properties.
  • a variant of AA 3105 contains more than 0.6 - 2.0% silicon, 0.9 - 2.4% iron, wherein the ratio of the amount of iron to the amount of silicon is in the range of 1.2 - 1.8:1, 0 - 0.3% copper, 0.3 - 0.8% manganese, 0.2 - 0.8% magnesium, 0 - 0.5% zinc and the balance aluminum and incidental impurities.
  • a variant of AA 5052 according to the invention contains more than 0.6 - 2.0% silicon, 0.9 - 2.4% iron, wherein the ratio of the amount of iron to the amount of silicon is in the range of 1.2 - 1.8:1, 0 - 0.1% copper, 0 - 0.1% manganese, 2.2 - 2.8% magnesium, 0 - 0.1% zinc, 0.15 - 0.35% chromium and the balance aluminum and incidental impurities.
  • a variant of AA 5010 according to the invention contains more than 0.6 - 2.0% silicon, 0.9 - 2.4% iron, wherein the ratio of the amount of iron to the amount of silicon is in the range of 1.2 - 1.8:1, 0 - 0.25% copper, 0.1 - 0.3% manganese, 0.2 - 0.6% magnesium, 0 - 0.5% zinc and the balance aluminum and incidental impurities.
  • scrap may be obtained from sources such as plant scrap, can scrap, consumer scrap, etc.
  • the scrap to be recycled is charged into a furnace to form a melt composition.
  • the initial melt will vary in composition according to the compositions and amounts of the various types of scrap charged in the furnace.
  • This initial melt is then adjusted as necessary to bring the composition within the ranges stated above and treated as necessary to remove impurities.
  • the alloy composition is then cast e.g. by the direct chill (DC) process into ingots which are formed into sheet products.
  • DC direct chill
  • Example 1 Different aluminum alloy compositions were prepared incorporating higher levels of iron and silicon as is encountered in aluminum scrap, and were tested as to their suitability for making can bodies. The alloys are shown in Table I below (all amounts in percentages by weight) : TABLE I Alloy Iron Silicon Fe:Si Manganese Magnesium Copper
  • the balance for each alloy was aluminum and incidental impurities.
  • the alloys were cast into ingots. These ingots were pre-heated at 593°C for 2 hours and hot rolled to a thickness of 0.090". This was subsequently cold rolled in three passes to a sheet having thickness of 0.01040". The sheet obtained was then subjected to testing to determine its suitability as can stock. The results obtained are shown in Table II below.
  • alloys having higher contents of iron and silicon have good strength characteristics making them useful for other products where formability is not critical.

Abstract

L'invention concerne des alliages d'aluminium de recyclage, ces alliages étant des variantes des alliages des séries AA 3000 et AA 5000 à teneurs en silicium et en fer supérieures à la normale. Ces alliages contiennent, en pourcentages en poids, plus de 0.6 - 2.0 % de silicium et 0.9 - 2.4 % de fer, la quantité de fer et de silicium étant dans un rapport de 1.2 - 1.8:1. D'autres composants de ces alliages peuvent inclure 0 - 0.4 % de cuivre, 0 - 1.5 % de manganèse, 0 - 5.0 % de magnésium, 0 - 0.5 % de zinc, 0 - 3.5 % de chrome, 0 - 0.1 % de titane, le reste étant de l'aluminium et des impuretés éventuelles.
PCT/CA2004/000477 2003-04-24 2004-03-30 Alliages a base de dechets d'aluminium recycles a haute teneur en fer et en silicium WO2004094679A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0409700-9A BRPI0409700A (pt) 2003-04-24 2004-03-30 ligas de sucata de alumìnio reciclada contendo altos nìveis de ferro e silìcio

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46498203P 2003-04-24 2003-04-24
US60/464,982 2003-04-24

Publications (1)

Publication Number Publication Date
WO2004094679A1 true WO2004094679A1 (fr) 2004-11-04

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PCT/CA2004/000477 WO2004094679A1 (fr) 2003-04-24 2004-03-30 Alliages a base de dechets d'aluminium recycles a haute teneur en fer et en silicium

Country Status (3)

Country Link
US (2) US20040213695A1 (fr)
BR (1) BRPI0409700A (fr)
WO (1) WO2004094679A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9517498B2 (en) 2013-04-09 2016-12-13 Ball Corporation Aluminum impact extruded bottle with threaded neck made from recycled aluminum and enhanced alloys
US9663846B2 (en) 2011-09-16 2017-05-30 Ball Corporation Impact extruded containers from recycled aluminum scrap
US9719156B2 (en) 2011-12-16 2017-08-01 Novelis Inc. Aluminum fin alloy and method of making the same
US10875684B2 (en) 2017-02-16 2020-12-29 Ball Corporation Apparatus and methods of forming and applying roll-on pilfer proof closures on the threaded neck of metal containers
US11185909B2 (en) 2017-09-15 2021-11-30 Ball Corporation System and method of forming a metallic closure for a threaded container
US11459223B2 (en) 2016-08-12 2022-10-04 Ball Corporation Methods of capping metallic bottles
US11519057B2 (en) 2016-12-30 2022-12-06 Ball Corporation Aluminum alloy for impact extruded containers and method of making the same
US11933553B2 (en) 2014-08-06 2024-03-19 Novelis Inc. Aluminum alloy for heat exchanger fins

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US20080041501A1 (en) * 2006-08-16 2008-02-21 Commonwealth Industries, Inc. Aluminum automotive heat shields
KR101357050B1 (ko) * 2011-10-10 2014-02-04 한국생산기술연구원 다이캐스팅용 고열전도도 Ａｌ-Ｍｇ-Ｆｅ-Ｓｉ 합금
CN102492878A (zh) * 2011-11-15 2012-06-13 徐艳 一种电动自行车用铝合金车架管的生产方法
CN102634700B (zh) * 2012-05-15 2014-09-17 山东大学 一种铸造铝硅合金孕育剂及其制备方法和应用
US20160271688A1 (en) * 2015-03-17 2016-09-22 Juergen Wuest Low cost high ductility cast aluminum alloy
CN110157955A (zh) * 2018-02-06 2019-08-23 重庆熵臻科技有限公司 一种高强度粒子分布均匀的轻量型环保铝合金型材

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JPS6439340A (en) * 1987-08-03 1989-02-09 Furukawa Aluminium Aluminum alloy composite plate for wrapping
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JPS6439340A (en) * 1987-08-03 1989-02-09 Furukawa Aluminium Aluminum alloy composite plate for wrapping
JPH03215646A (ja) * 1990-01-20 1991-09-20 Kobe Steel Ltd 缶底成形性に優れるアルミ缶体材
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9663846B2 (en) 2011-09-16 2017-05-30 Ball Corporation Impact extruded containers from recycled aluminum scrap
US10584402B2 (en) 2011-09-16 2020-03-10 Ball Corporation Aluminum alloy slug for impact extrusion
US9719156B2 (en) 2011-12-16 2017-08-01 Novelis Inc. Aluminum fin alloy and method of making the same
US9517498B2 (en) 2013-04-09 2016-12-13 Ball Corporation Aluminum impact extruded bottle with threaded neck made from recycled aluminum and enhanced alloys
US9844805B2 (en) 2013-04-09 2017-12-19 Ball Corporation Aluminum impact extruded bottle with threaded neck made from recycled aluminum and enhanced alloys
US11933553B2 (en) 2014-08-06 2024-03-19 Novelis Inc. Aluminum alloy for heat exchanger fins
US11459223B2 (en) 2016-08-12 2022-10-04 Ball Corporation Methods of capping metallic bottles
US11970381B2 (en) 2016-08-12 2024-04-30 Ball Corporation Methods of capping metallic bottles
US11519057B2 (en) 2016-12-30 2022-12-06 Ball Corporation Aluminum alloy for impact extruded containers and method of making the same
US10875684B2 (en) 2017-02-16 2020-12-29 Ball Corporation Apparatus and methods of forming and applying roll-on pilfer proof closures on the threaded neck of metal containers
US11185909B2 (en) 2017-09-15 2021-11-30 Ball Corporation System and method of forming a metallic closure for a threaded container

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Publication number Publication date
US20080181812A1 (en) 2008-07-31
BRPI0409700A (pt) 2006-05-02
US20040213695A1 (en) 2004-10-28

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