[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0967294A1 - Treatment of an aluminium melt - Google Patents

Treatment of an aluminium melt Download PDF

Info

Publication number
EP0967294A1
EP0967294A1 EP98810594A EP98810594A EP0967294A1 EP 0967294 A1 EP0967294 A1 EP 0967294A1 EP 98810594 A EP98810594 A EP 98810594A EP 98810594 A EP98810594 A EP 98810594A EP 0967294 A1 EP0967294 A1 EP 0967294A1
Authority
EP
European Patent Office
Prior art keywords
weight
max
melt
beryllium
vanadium
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Withdrawn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
EP98810594A
Other languages
German (de)
French (fr)
Inventor
Hubert Koch
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 GmbH
Original Assignee
Aluminium Rheinfelden 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 GmbH filed Critical Aluminium Rheinfelden GmbH
Priority to EP98810594A priority Critical patent/EP0967294A1/en
Priority to EP99928168A priority patent/EP1090156B1/en
Priority to AT99928168T priority patent/ATE234941T1/en
Priority to JP2000557005A priority patent/JP4287594B2/en
Priority to BR9911582-4A priority patent/BR9911582A/en
Priority to PCT/IB1999/001260 priority patent/WO2000000654A1/en
Priority to AU45280/99A priority patent/AU4528099A/en
Priority to DE59904642T priority patent/DE59904642D1/en
Priority to ES99928168T priority patent/ES2193716T3/en
Priority to US09/719,900 priority patent/US6994759B1/en
Priority to CA002336016A priority patent/CA2336016C/en
Publication of EP0967294A1 publication Critical patent/EP0967294A1/en
Priority to NO20006494A priority patent/NO331736B1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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

Definitions

  • the invention relates to a method for reducing the susceptibility to Aluminum alloy melt with a content of at least 2.5% by weight Magnesium against scratching.
  • a metal melt that is ready to be cast is kept at a melt temperature of, for example, 750 ° C. for more than 50 hours.
  • Aluminum-magnesium alloys with a higher magnesium content tend to scratch after longer periods of inactivity.
  • the presence of magnesium in the melt means that the protective oxide skin, which normally prevents oxidation of the aluminum, becomes permeable and the reaction of the aluminum with oxygen can take place.
  • a cauliflower-like scab is formed on the melt, which mainly consists of spinel (MgO ⁇ Al 2 O 3 ).
  • This process is further intensified by lid heating furnaces, since the temperature of the metal bath surface is very high due to the radiant heat of the heating rods in the lid and convection in the metal bath is prevented by temperature stratification. Due to the increase in gravity, magnesium accumulates in the vicinity of the melt surface and leads to an additional intensification of this effect.
  • the scab that forms is very hard, has a cauliflower-like morphology, and sinks to the bottom of the crucible, so that the entire oven can be contaminated if not scraped off early enough. The higher the melt temperature, the earlier the scratching starts.
  • the invention is therefore based on the object by alloying Measures a higher scratch resistance for aluminum-magnesium alloys bring about than this with a beryllium additive after the State of the art is possible.
  • the melt 0.02 to 0.15 wt .-% vanadium and less than 60 ppm beryllium is added.
  • the melt is preferably 0.05 to 0.13% by weight of vanadium, in particular 0.07 to 0.12 wt .-% vanadium added.
  • an addition is sufficient from 25 to 50 ppm beryllium, preferably 25 to 35 ppm beryllium.
  • the Magnesium content in the melt lower than 3.5 wt .-%, so less than 25 ppm beryllium is required to provide high resistance to scratching achieve. With lower requirements for the tendency to scratch, it can even the addition of beryllium can be dispensed with.
  • the method of production according to the invention is particularly preferred of die-cast alloys.

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)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Conductive Materials (AREA)

Abstract

The dross forming tendency of an aluminum-magnesium alloy melt is reduced by addition of vanadium and a very small quantity of beryllium. The susceptibility of an aluminum alloy melt containing ≥ 2.5 wt.% Mg to dross formation is reduced by addition of 0.02-0.15 wt.% V and less than 60 ppm Be.

Description

Die Erfindung betrifft ein Verfahren zur Verminderung der Anfälligkeit einer Aluminiumlegierungsschmelze mit einem Gehalt von mindestens 2.5 Gew.-% Magnesium gegen Verkrätzung.The invention relates to a method for reducing the susceptibility to Aluminum alloy melt with a content of at least 2.5% by weight Magnesium against scratching.

Bei einem Betriebsunterbruch in einer Giesserei, beispielsweise über Feiertage oder über ein Wochenende, kann es vorkommen, dass eine an sich giessfertige Metallschmelze während mehr als 50 h auf einer Schmelzetemperatur von beispielsweise 750°C gehalten wird. Aluminium-Magnesium-Legierungen mit höherem Magnesiumgehalt neigen nach längeren Abstehzeiten zur Verkrätzung. Die Anwesenheit von Magnesium in der Schmelze bewirkt, dass die schützenden Oxidhaut, die eine Oxidation des Aluminiums im Normalfall verhindert, durchlässig wird und die Reaktion des Aluminiums mit Sauerstoff ablaufen kann. Auf der Schmelze bildet sich eine blumenkohlartige Krätze, die vorwiegend aus Spinell (MgO · Al2O3) besteht. Durch Deckelheizungsöfen wird dieser Vorgang weiter verstärkt, da die Temperatur der Metallbadoberfläche bedingt durch die Strahlungswärme der Heizstäbe im Deckel sehr hoch ist und eine Konvektion im Metallbad durch Temperaturschichtung verhindert wird. Aufgrund der Schwerkraftseigerung reichert sich Magnesium in der Nähe der Schmelzeoberfläche an und führt zu einer zusätzlichen Verstärkung dieses Effektes. Die sich bildende Krätze ist sehr hart, hat eine blumenkohlartige Morphologie und sinkt auf den Tiegelboden ab, so dass der ganze Ofen kontaminiert werden kann, wenn nicht früh genug abgekrätzt wird. Die Verkrätzung setzt umso früher ein, je höher die Schmelzetemperatur ist.In the event of an interruption in operation in a foundry, for example over public holidays or over a weekend, it can happen that a metal melt that is ready to be cast is kept at a melt temperature of, for example, 750 ° C. for more than 50 hours. Aluminum-magnesium alloys with a higher magnesium content tend to scratch after longer periods of inactivity. The presence of magnesium in the melt means that the protective oxide skin, which normally prevents oxidation of the aluminum, becomes permeable and the reaction of the aluminum with oxygen can take place. A cauliflower-like scab is formed on the melt, which mainly consists of spinel (MgO · Al 2 O 3 ). This process is further intensified by lid heating furnaces, since the temperature of the metal bath surface is very high due to the radiant heat of the heating rods in the lid and convection in the metal bath is prevented by temperature stratification. Due to the increase in gravity, magnesium accumulates in the vicinity of the melt surface and leads to an additional intensification of this effect. The scab that forms is very hard, has a cauliflower-like morphology, and sinks to the bottom of the crucible, so that the entire oven can be contaminated if not scraped off early enough. The higher the melt temperature, the earlier the scratching starts.

Es ist bekannt, dass die Verkrätzung von Aluminium-Magnesium-Legierungen durch Zulegieren von Beryllium abgemildert wird, aber nicht ganz vermieden werden kann. Es wurde beobachtet, dass der Berylliumgehalt in einer Aluminium-Magnesium-Legierung in der Schmelze mit der Zeit abnimmt und offenbar beim Unterschreiten einer kritischen Berylliumkonzentration eine rasche Krätzebildung auf der Schmelze einsetzt. Eine erhöhte Berylliumzugabe zur Metallschmelze ist wegen der karzinogenen Eigenschaften von Beryllium unerwünscht und sollte deshalb möglichst vermieden werden.It is known that the scratching of aluminum-magnesium alloys is softened by adding beryllium, but not completely avoided can be. It has been observed that the beryllium content in an aluminum-magnesium alloy in the melt decreases with time and apparently if the beryllium concentration falls below a critical level, it develops quickly on the melt. An increased addition of beryllium to the molten metal is undesirable because of the carcinogenic properties of beryllium and should therefore be avoided if possible.

Der Erfindung liegt daher die Aufgabe zugrunde, durch legierungstechnische Massnahmen einen höheren Verkrätzungswiderstand für Aluminium-Magnesium-Legierungen herbeizuführen als dies mit einem Berylliumzusatz nach dem Stand der Technik möglich ist.The invention is therefore based on the object by alloying Measures a higher scratch resistance for aluminum-magnesium alloys bring about than this with a beryllium additive after the State of the art is possible.

Zur erfindungsgemässen Lösung der Aufgabe führt, dass der Schmelze 0.02 bis 0.15 Gew.-% Vanadium und weniger als 60 ppm Beryllium zugegeben wird.To achieve the object according to the invention, the melt 0.02 to 0.15 wt .-% vanadium and less than 60 ppm beryllium is added.

Überraschend hat sich gezeigt, dass durch Zulegieren von Vanadium die krätzevermindemde Zugabe von Beryllium in erheblich kleinerer Menge erfolgen kann als ohne Vanadiumzugabe.Surprisingly, it has been shown that the addition of vanadium reduces the dross Add beryllium in a significantly smaller amount can be added without vanadium.

Bevorzugt wird der Schmelze 0.05 bis 0.13 Gew.-% Vanadium, insbesondere 0.07 bis 0.12 Gew.-% Vanadium zugegeben.The melt is preferably 0.05 to 0.13% by weight of vanadium, in particular 0.07 to 0.12 wt .-% vanadium added.

Bei einem Gehalt von mehr als 3.5 Gew.-% Magnesium genügt eine Zugabe von 25 bis 50 ppm Beryllium, vorzugsweise 25 bis 35 ppm Beryllium. Liegt der Gehalt von Magnesium in der Schmelze tiefer als 3.5 Gew.-%, so sind weniger als 25 ppm Beryllium erforderlich, um einen hohen Verkrätzungswiderstand zu erzielen. Bei geringeren Anforderungen an die Verkrätzungsneigung kann sogar auf eine Berylliumzugabe verzichtet werden.With a content of more than 3.5% by weight of magnesium, an addition is sufficient from 25 to 50 ppm beryllium, preferably 25 to 35 ppm beryllium. Is the Magnesium content in the melt lower than 3.5 wt .-%, so less than 25 ppm beryllium is required to provide high resistance to scratching achieve. With lower requirements for the tendency to scratch, it can even the addition of beryllium can be dispensed with.

Eine bevorzugte Anwendung des erfindungsgemässen Verfahrens liegt in der Herstellung von Gusslegierungen mit

  • 2.5 bis 7 Gew.-% Magnesium
  • max. 2.5 Gew.-% Silizium
  • max. 1.6 Gew.-% Mangan
  • max. 0.2 Gew.-% Titan
  • max. 0.3 Gew.-% Eisen
  • max. 0.2 Gew.-% Kobalt
  • weniger als 60 ppm Beryllium
  • 0.02 bis 0.15 Gew.-% Vanadium
    • sowie Aluminium als Rest und herstellungsbedingte Verunreinigungen, einzeln max. 0.05 Gew.-%, insgesamt max. 0.15 Gew.-%.A preferred application of the method according to the invention is in the production of cast alloys
  • 2.5 to 7% by weight of magnesium
  • Max. 2.5% by weight silicon
  • Max. 1.6% by weight of manganese
  • Max. 0.2% by weight titanium
  • Max. 0.3% by weight iron
  • Max. 0.2% by weight of cobalt
  • less than 60 ppm beryllium
  • 0.02 to 0.15 wt% vanadium
    • as well as aluminum as the rest and production-related impurities, individually max. 0.05% by weight, total max. 0.15% by weight.

    Besonders bevorzugt wird das erfindungsgemässe Verfahren zur Herstellung von Druckgusslegierungen eingesetzt.The method of production according to the invention is particularly preferred of die-cast alloys.

    Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen.Further advantages, features and details of the invention result from the following description of exemplary embodiments.

    Je ca. 50 kg einer Aluminium-Magnesium-Legierung mit unterschiedlichem Beryllium- und Vanadiumgehalt wurden in einem Tiegel im Induktionsofen aufgeschmolzen. Anschliessend wurde der Tiegel in einen Widerstandsofen überführt und dort bei einer Temperatur von 750°C gehalten. Die chemischen Analysen (in Gew.-%) der untersuchten Chargen sind in Tabelle 1 zusammengefasst. Die Chargen 1, 3 und 4 weisen einen erfindungsgemässen Vanadiumgehalt auf, die Charge 2 liegt mit ihrem Vanadiumgehalt ausserhalb des erfindungsgemässen Bereichs.Approx. 50 kg of an aluminum-magnesium alloy with different beryllium and vanadium content were melted in a crucible in the induction furnace. The crucible was then transferred to a resistance furnace and kept there at a temperature of 750 ° C. The chemical analyzes (in% by weight) of the batches examined are summarized in Table 1. Batches 1, 3 and 4 have a vanadium content according to the invention on, the batch 2 with its vanadium content lies outside of that according to the invention Area.

    In bestimmten Zeitabständen wurden von den verschiedenen Chargen zur Bestimmung der chemischen Zusammensetzung Proben genommen. Des weiteren wurde die Schmelzeoberfläche in bestimmten Zeitabständen beobachtet, um den Zeitpunkt der verstärkten Krätzebildung zu bestimmen. Tabelle 2 zeigt die Zeit bis zur Verkrätzung der Schmelze in Abhängigkeit vom Beryllium- und Vanadiumgehalt der Legierung. Die Ergebnisse deuten daraufhin, dass zumindest bei den untersuchten Aluminium-Magnesium-Legierungen mit hohem Magnesiumgehalt eine geringe Menge Beryllium neben dem erfindungsgemässen Anteil an Vanadium in der Schmelze vorhanden sein muss, damit ein hoher Verkrätzungwiderstand erzielt werden kann. Andererseits genügt bei einer Zugabe von Vanadium im erfindungsgemässen Bereich bereits ein Berylliumgehalt von etwa 25 ppm, um den Verkrätzungswiderstand erheblich zu verbessern. Charge Si Fe Cu Mn Mg Cr Zn Ti Be V 1 2.36 0.08 0 0.78 5.31 0 0.002 0.13 0.0011 0.072 2 2.30 0.08 0 0.74 5.69 0 0.01 0.11 0.0043 0.0052 3 2.37 0.08 0 0.79 5.28 0 0.002 0.12 0.0026 0.080 4 2.38 0.08 0 0.78 5.27 0 0.002 0.08 0.0026 0.072 Charge Be-Gehalt [ppm] V-Gehalt [Gew.-%] Zeit bis zur Verkrätzung [h] 1 11 0.072 68 2 43 0.005 63 3 26 0.080 158 4 26 0.072 139 The various batches were sampled at certain intervals to determine the chemical composition. Furthermore, the melt surface was observed at certain time intervals in order to determine the point in time of the increased dross formation. Table 2 shows the time until the melt is scratched depending on the beryllium and vanadium content of the alloy. The results indicate that at least in the aluminum-magnesium alloys with a high magnesium content examined, a small amount of beryllium must be present in the melt in addition to the proportion of vanadium according to the invention, so that a high resistance to scratching can be achieved. On the other hand, with the addition of vanadium in the range according to the invention, a beryllium content of about 25 ppm is sufficient to significantly improve the resistance to scratching. Batch Si Fe Cu Mn Mg Cr Zn Ti Be V 1 2.36 0.08 0 0.78 5.31 0 0.002 0.13 0.0011 0.072 2nd 2.30 0.08 0 0.74 5.69 0 0.01 0.11 0.0043 0.0052 3rd 2.37 0.08 0 0.79 5.28 0 0.002 0.12 0.0026 0.080 4th 2.38 0.08 0 0.78 5.27 0 0.002 0.08 0.0026 0.072 Batch Be content [ppm] V content [% by weight] Time to scratch [h] 1 11 0.072 68 2nd 43 0.005 63 3rd 26 0.080 158 4th 26 0.072 139

    Claims (6)

    Verfahren zur Verminderung der Anfälligkeit einer Aluminiumlegierungsschmelze mit einem Gehalt von mindestens 2.5 Gew.-% Magnesium gegen Verkrätzung,
    dadurch gekennzeichnet, dass
    der Schmelze 0.02 bis 0.15 Gew.-% Vanadium und weniger als 60 ppm Beryllium zugegeben wird.    Process for reducing the susceptibility of an aluminum alloy melt with a content of at least 2.5% by weight magnesium to scratching,
    characterized in that
    0.02 to 0.15% by weight of vanadium and less than 60 ppm of beryllium are added to the melt.         Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Schmelze 0.05 bis 0.13 Gew.-% Vanadium, vorzugsweise 0.07 bis 0.12 Gew.-% Vanadium zugegeben wird.A method according to claim 1, characterized in that the melt 0.05 to 0.13% by weight of vanadium, preferably 0.07 to 0.12% by weight of vanadium is added. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schmelze bei einem Gehalt von mehr als 3.5 Gew.-% Magnesium 25 bis 50 ppm Beryllium, vorzugsweise 25 bis 35 ppm Beryllium zugegeben wird.A method according to claim 1 or 2, characterized in that the Melt at a content of more than 3.5 wt .-% magnesium 25 to 50 ppm beryllium, preferably 25 to 35 ppm beryllium is added. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schmelze bei einem Gehalt von weniger als 3.5 Gew.-% Magnesium weniger als 25 ppm Beryllium zugegeben wird.A method according to claim 1 or 2, characterized in that the Melt with a content of less than 3.5% by weight of magnesium less than 25 ppm beryllium is added. Anwendung des Verfahrens nach einem der Ansprüche 1 bis 4 zur Herstellung von Gusslegierungen mit 2.5 bis 7 Gew.-% Magnesium max. 2.5 Gew.-% Sillizium max. 1.6 Gew.-% Mangan max. 0.2 Gew.-% Titan max. 0.3 Gew.-% Eisen max. 0.2 Gew.-% Kobalt weniger als 60 ppm Beryllium 0.02 bis 0.15 Gew.-% Vanadium sowie Aluminium als Rest und herstellungsbedingte Verunreinigungen, einzeln max. 0.05 Gew.-%, insgesamt max. 0.15 Gew.-%.Application of the method according to one of claims 1 to 4 for the production of cast alloys with 2.5 to 7% by weight of magnesium Max. 2.5% by weight silicon Max. 1.6% by weight of manganese Max. 0.2% by weight titanium Max. 0.3% by weight iron Max. 0.2% by weight of cobalt less than 60 ppm beryllium 0.02 to 0.15 wt% vanadium as well as aluminum as the rest and production-related impurities, individually max. 0.05% by weight, total max. 0.15% by weight. Anwendung des Verfahrens nach Anspruch 5 zur Herstellung von Druckgusslegierungen.Application of the method according to claim 5 for the production of die-casting alloys.
    EP98810594A 1998-06-26 1998-06-26 Treatment of an aluminium melt Withdrawn EP0967294A1 (en)

    Priority Applications (12)

    Application Number Priority Date Filing Date Title
    EP98810594A EP0967294A1 (en) 1998-06-26 1998-06-26 Treatment of an aluminium melt
    PCT/IB1999/001260 WO2000000654A1 (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt
    AT99928168T ATE234941T1 (en) 1998-06-26 1999-06-21 TREATMENT OF ALUMINUM ALLOY MELTS
    JP2000557005A JP4287594B2 (en) 1998-06-26 1999-06-21 Treatment of aluminum alloy melt
    BR9911582-4A BR9911582A (en) 1998-06-26 1999-06-21 Treatment of a melting mass of aluminum alloy
    EP99928168A EP1090156B1 (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt
    AU45280/99A AU4528099A (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt
    DE59904642T DE59904642D1 (en) 1998-06-26 1999-06-21 TREATMENT OF AN ALUMINUM MELT
    ES99928168T ES2193716T3 (en) 1998-06-26 1999-06-21 TREATMENT OF A FOUNDED MASS ALUMINUM ALLOY.
    US09/719,900 US6994759B1 (en) 1998-06-26 1999-06-21 Treatment of an aluminum alloy melt
    CA002336016A CA2336016C (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt
    NO20006494A NO331736B1 (en) 1998-06-26 2000-12-19 Process for the preparation of aluminum-magnesium stop alloys

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP98810594A EP0967294A1 (en) 1998-06-26 1998-06-26 Treatment of an aluminium melt

    Publications (1)

    Publication Number Publication Date
    EP0967294A1 true EP0967294A1 (en) 1999-12-29

    Family

    ID=8236162

    Family Applications (2)

    Application Number Title Priority Date Filing Date
    EP98810594A Withdrawn EP0967294A1 (en) 1998-06-26 1998-06-26 Treatment of an aluminium melt
    EP99928168A Expired - Lifetime EP1090156B1 (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt

    Family Applications After (1)

    Application Number Title Priority Date Filing Date
    EP99928168A Expired - Lifetime EP1090156B1 (en) 1998-06-26 1999-06-21 Treatment of an aluminium alloy melt

    Country Status (11)

    Country Link
    US (1) US6994759B1 (en)
    EP (2) EP0967294A1 (en)
    JP (1) JP4287594B2 (en)
    AT (1) ATE234941T1 (en)
    AU (1) AU4528099A (en)
    BR (1) BR9911582A (en)
    CA (1) CA2336016C (en)
    DE (1) DE59904642D1 (en)
    ES (1) ES2193716T3 (en)
    NO (1) NO331736B1 (en)
    WO (1) WO2000000654A1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10206035A1 (en) * 2002-02-14 2003-08-28 Ks Kolbenschmidt Gmbh Aluminum-based alloy used in the production of a piston for use in an internal combustion engine contains alloying additions of silicon, magnesium, vanadium and beryllium
    CN108034871A (en) * 2017-11-21 2018-05-15 保定隆达铝业有限公司 A kind of almag of two width formula frame of handwheel casting and preparation method thereof

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102010055120A1 (en) * 2010-12-18 2012-06-21 Borgwarner Beru Systems Gmbh Spark plug for motor vehicle, has inner conductor, insulator that surrounds inner conductor, spark plug body that surrounds insulator and two electrodes, which form ignition gap
    GB201205655D0 (en) * 2012-03-30 2012-05-16 Jaguar Cars Alloy and method of production thereof
    EP4194575A1 (en) 2021-12-10 2023-06-14 Aluminium Rheinfelden Alloys GmbH Addition of calcium and vanadium to almg alloys

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2658308A1 (en) * 1976-12-03 1978-06-08 Alusuisse Aluminium-strontium master alloy - produced by adding strontium encased in aluminium foil, to the aluminium melt
    EP0110190A1 (en) * 1982-11-26 1984-06-13 ALUMINIA S.p.A. Aluminium alloys for nuclear apparatus
    EP0594509A1 (en) * 1992-10-23 1994-04-27 The Furukawa Electric Co., Ltd. Process for manufacturing Al-Mg alloy sheets for press forming
    JPH07197177A (en) * 1994-01-10 1995-08-01 Sky Alum Co Ltd Aluminum alloy rolled sheet for superplastic formation and low in cavitation
    US5540791A (en) * 1993-07-12 1996-07-30 Sky Aluminum Co., Ltd. Preformable aluminum-alloy rolled sheet adapted for superplastic forming and method for producing the same

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2336512A (en) * 1939-09-19 1943-12-14 Aluminum Co Of America Aluminum base alloy
    SU530919A1 (en) * 1975-07-31 1976-10-05 Предприятие П/Я Р-6209 Aluminum based alloy
    US4661172A (en) * 1984-02-29 1987-04-28 Allied Corporation Low density aluminum alloys and method

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2658308A1 (en) * 1976-12-03 1978-06-08 Alusuisse Aluminium-strontium master alloy - produced by adding strontium encased in aluminium foil, to the aluminium melt
    EP0110190A1 (en) * 1982-11-26 1984-06-13 ALUMINIA S.p.A. Aluminium alloys for nuclear apparatus
    EP0594509A1 (en) * 1992-10-23 1994-04-27 The Furukawa Electric Co., Ltd. Process for manufacturing Al-Mg alloy sheets for press forming
    US5540791A (en) * 1993-07-12 1996-07-30 Sky Aluminum Co., Ltd. Preformable aluminum-alloy rolled sheet adapted for superplastic forming and method for producing the same
    JPH07197177A (en) * 1994-01-10 1995-08-01 Sky Alum Co Ltd Aluminum alloy rolled sheet for superplastic formation and low in cavitation

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 095, no. 011 26 December 1995 (1995-12-26) *

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10206035A1 (en) * 2002-02-14 2003-08-28 Ks Kolbenschmidt Gmbh Aluminum-based alloy used in the production of a piston for use in an internal combustion engine contains alloying additions of silicon, magnesium, vanadium and beryllium
    CN108034871A (en) * 2017-11-21 2018-05-15 保定隆达铝业有限公司 A kind of almag of two width formula frame of handwheel casting and preparation method thereof

    Also Published As

    Publication number Publication date
    NO331736B1 (en) 2012-03-12
    CA2336016C (en) 2008-02-12
    ES2193716T3 (en) 2003-11-01
    BR9911582A (en) 2001-03-20
    AU4528099A (en) 2000-01-17
    JP4287594B2 (en) 2009-07-01
    US6994759B1 (en) 2006-02-07
    EP1090156A1 (en) 2001-04-11
    JP2002519510A (en) 2002-07-02
    DE59904642D1 (en) 2003-04-24
    EP1090156B1 (en) 2003-03-19
    WO2000000654A1 (en) 2000-01-06
    NO20006494L (en) 2000-12-19
    CA2336016A1 (en) 2000-01-06
    NO20006494D0 (en) 2000-12-19
    ATE234941T1 (en) 2003-04-15

    Similar Documents

    Publication Publication Date Title
    JP5640399B2 (en) Aluminum alloy plate with anodized film and method for producing the same
    EP0223737B1 (en) Support for a lithographic printing plate
    DE2103614A1 (en) Hot-formable aluminum alloys and processes for their processing
    DE1966949A1 (en) PROCESS FOR THE PRODUCTION OF NICKEL-BASED ALLOYS DIRECTLY PROCESSED INTO HIGHLY TEMPERATURE-RESISTANT CASTINGS
    US3320055A (en) Magnesium-base alloy
    EP0911420A1 (en) Aluminium casting alloy
    EP0967294A1 (en) Treatment of an aluminium melt
    EP0531118A1 (en) Rolled aluminium alloy strip for forming and method for making
    DE2916959A1 (en) ALLOY OF IRON, CHROME, ALUMINUM, YTTRIUM AND SILICON
    CH513983A (en) Copper alloy
    EP0828008A2 (en) Aluminium alloy with good machinability
    DE3879809T2 (en) ALUMINUM ALLOYS AND METHOD FOR PRODUCING THE SAME.
    DE2207160A1 (en) Zinc alloy and process for their manufacture
    JP3200523B2 (en) Age-hardened aluminum alloy extruded profile for gray coloring and method for producing the same
    US20050039831A1 (en) Blister-free aluminum forgings and method of making the same
    DE2105817A1 (en) Aluminum alloy
    DE69705691T2 (en) Process for the production of sulfurized steel with a fine austenitic grain
    US3333956A (en) Magnesium-base alloy
    DE19832489A1 (en) Wrought aluminium-magnesium-silicon alloy
    DE3725950A1 (en) USE OF A COPPER ALLOY AS A MATERIAL FOR CONTINUOUS CASTING MOLDS
    DE531693C (en) Process for the production of aluminum with high electrical conductivity and great strength
    DE1758121C (en) Copper alloy and methods of improving the electrical conductivity and strength of this alloy
    JPS6229502B2 (en)
    WO1999066090A1 (en) Lead free aluminium alloy based on a mixture of aluminium-copper-magnesium with good machining capacity
    DE1483228C (en) Aluminum alloy with high creep strength

    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

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    AKX Designation fees paid
    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: 8566

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

    Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

    18D Application deemed to be withdrawn

    Effective date: 20000630