EP0771365A1 - Hot chamber castable zinc alloy - Google Patents

Hot chamber castable zinc alloy

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Publication number
EP0771365A1
EP0771365A1 EP95926933A EP95926933A EP0771365A1 EP 0771365 A1 EP0771365 A1 EP 0771365A1 EP 95926933 A EP95926933 A EP 95926933A EP 95926933 A EP95926933 A EP 95926933A EP 0771365 A1 EP0771365 A1 EP 0771365A1
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EP
European Patent Office
Prior art keywords
alloy
zinc
hot chamber
alloy according
casting
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Granted
Application number
EP95926933A
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German (de)
French (fr)
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EP0771365B1 (en
Inventor
Laurent R.A.G. Coster
Didier Rollez
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Nv Union Miniere Sa
Umicore NV SA
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Nv Union Miniere Sa
Union Miniere NV SA
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Publication of EP0771365A1 publication Critical patent/EP0771365A1/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/04—Alloys based on zinc with aluminium as the next major constituent

Definitions

  • the present invention relates to a zinc-based alloy containing Al and Cu, which can be cast under pressure in a hot chamber machine.
  • ACuZinc 5" consists of 5.0-6.0% Cu, 2.8-3.3% Al and 0.025- 0.05% Mg, Zn residue (all the percentages given in the present application are% by weight).
  • the creep resistance of this alloy although appreciably higher than that of ZamaJc or ZA alloys cast for a long time in a hot chamber, is still relatively low.
  • the object of the present invention is to provide an alloy as defined above, which has better creep resistance than the known alloy mentioned above.
  • the alloy contains, in% by weight: either 15-20 Al, 8-10 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti , 0-0.5 Cr,
  • composition 0-1 Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, this composition being called hereinafter variant I, i.e. 25-30 Al, 15- 20 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr,
  • the two variants have, in the liquid state, at temperatures not exceeding 460 ° C., such low aggressiveness with respect to the steels that they are pourable in the chamber hot and on the other hand that variant I has in the cast state a good creep resistance and an excellent tensile strength, while variant II has in the cast state an excellent creep resistance and a good resistance to traction.
  • the contents of Al and Cu, mentioned above, must be respected; otherwise, the melting point of the alloy rises above 450 ° C, which means that the alloy is no longer pourable in a hot room, because its aggressiveness towards the casting equipment becomes too great above 460 ° C.
  • the silicon content is less than 0.01%, the tensile strength and creep resistance deteriorate.
  • a silicon content of more than 2% makes the alloy, in the molten state, too pasty and too aggressive.
  • alloys (a) and ( c) are the closest to the alloy according to the invention.
  • the alloy (a) has too low a Cu content and a too high Mg content for it to be poured in a hot chamber.
  • Alloy (c) also has too low a Cu content; moreover, it is extremely difficult to prepare an alloy containing 0.25-2% of rare earth metals, even in the oxidized state, because of the great affinity of these metals for oxygen.
  • Variant I advantageously contains 15-18% and preferably 15-17% Al.
  • the preferred Al and Cu contents of variant II are 25.5-28.5% and 15-18% respectively.
  • the preferential Si content of the two variants is 0.1-1%.
  • Both variants can contain - up to 0.1% Mg to improve, if necessary, the resistance to intercrystalline corrosion, *
  • Zn, Al and Cu, used to make the alloy have a purity of> 99.99%, ⁇ 99.95% and ⁇ 99.99% respectively, because it has been found that the the presence of impurities in the alloy adversely influences its fluidity and its mechanical properties.
  • zinc with a purity of> 99.995% and aluminum with a purity of> 99.97% are used.
  • the alloy contains a metal having a very high affinity for oxygen, such as for example Y, at least a part of this metal can be present in the oxidized state.
  • Test pieces of these alloys were poured into a hot chamber machine.
  • test pieces are those prescribed by the Technical Committee of European Zinc Producers for test pieces to be used in the tensile test of sheets and sheets of zinc and zinc alloys.
  • the test pieces were subjected to the creep test at 100 ° C. under a load of 40 MPa.
  • the creep curves, giving the elongation (in%) measured as a function of time (in hours), are shown in the attached diagram.
  • alloys according to the invention resist creep much better than the known alloys.
  • the tensile tests were carried out at room temperature with a tensile speed of 1 cm / min on test pieces with a thickness of 3 mm, manufactured as described above.
  • the present invention also relates to a process for manufacturing articles of a zinc-based alloy containing Al and Cu by die-casting in a hot chamber machine, this process being characterized in that the alloy is the alloy of the invention and in that the casting is carried out at a temperature equal to or less than 460 ° C.
  • the alloy of the invention is pourable in a hot room, it is necessarily pourable in a cold room and by gravity.
  • the present invention therefore also relates to a process for manufacturing articles of a zinc-based alloy containing Al and Cu by pressure casting in a cold chamber machine or by gravity casting, this process being characterized in that the alloy is the alloy of the invention.
  • the present invention also relates to the use of the alloy according to the invention as an anti-friction material.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Ceramic Products (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Supercharger (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Ink Jet (AREA)
  • Conductive Materials (AREA)
  • Mold Materials And Core Materials (AREA)
  • Sliding-Contact Bearings (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Adornments (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

Alloy containing, in percentage by weight, (a) either 15-20 Al and 8-10 Cu, or 25-30 Al and 15-20 Cu; and (b) 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr, 0-1Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, the remainder being zinc. The alloy has excellent creep and tensile strength, when it contains 15-20 Al and 8-10 Cu weight percent, and excellent creep and tensile strength when it contains 25-30 Al and 15-20 Cu.

Description

ALLIAGE DE ZINC COULABLE EN CHAMBRE CHAUDE. CASTABLE ZINC ALLOY IN HOT CHAMBER.
La présente invention se rapporte à un alliage à base de zinc contenant Al et Cu, coulable sous pression dans une machine à chambre chaude.The present invention relates to a zinc-based alloy containing Al and Cu, which can be cast under pressure in a hot chamber machine.
Un tel alliage est décrit dans le document "SAE technical paper séries 930788. ACuZinc : improved zinc alloys for die casting application, M.D. Hanna and M.S. Rashid. International Congress and Exposition Détroit, Michigan, March 1-5, 1993". Cet alliage connu, appelé' Such an alloy is described in the document "SAE technical paper series 930788. ACuZinc: improved zinc alloys for die casting application, MD Hanna and MS Rashid. International Congress and Exposition Detroit, Michigan, March 1-5, 1993". This known alloy, called '
"ACuZinc 5" est constitué de 5,0-6,0% de Cu, 2,8-3,3% d'Al et 0,025- 0,05% de Mg, reste Zn (tous les pourcentages donnés dans la présente demande de brevet sont des % en poids) . La résistance au fluage de cet alliage, quoique sensiblement supérieure à celle des alliages ZamaJc ou ZA coulés depuis longue date en chambre chaude, est encore relativement faible."ACuZinc 5" consists of 5.0-6.0% Cu, 2.8-3.3% Al and 0.025- 0.05% Mg, Zn residue (all the percentages given in the present application are% by weight). The creep resistance of this alloy, although appreciably higher than that of ZamaJc or ZA alloys cast for a long time in a hot chamber, is still relatively low.
Le but de la présente invention est de fournir un alliage tel que défini ci-dessus, qui présente une meilleure résistance au fluage que l'alliage connu précité.The object of the present invention is to provide an alloy as defined above, which has better creep resistance than the known alloy mentioned above.
A cet effet, selon l'invention, l'alliage contient, en % en poids : soit 15-20 Al, 8-10 Cu, 0,01-2 Si, 0-0,1 Mg, 0-0,5 Ti, 0-0,5 Cr,For this purpose, according to the invention, the alloy contains, in% by weight: either 15-20 Al, 8-10 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti , 0-0.5 Cr,
0-1 Mn, 0-0,5 Nb et 0-0,1 d'un métal ou d'un mélange de métaux des terres rares, cette composition étant appelée ci-après variante I, soit 25-30 Al, 15-20 Cu, 0,01-2 Si, 0-0,1 Mg, 0-0,5 Ti, 0-0,5 Cr,0-1 Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, this composition being called hereinafter variant I, i.e. 25-30 Al, 15- 20 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr,
0-1 Mn, 0-0,5 Nb et 0-0,1 d'un métal ou d'un mélange de métaux des terres rares, cette composition étant appelée ci-après variante II, le reste étant du zinc et les impuretés inévitablement présentes dans le zinc et les éléments d'alliage précités.0-1 Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, this composition being hereinafter called variant II, the remainder being zinc and the impurities inevitably present in the aforementioned zinc and alloying elements.
En effet, il a été trouvé d'une part que les deux variantes présentent à l'état liquide, à des températures ne dépassant pas 460°C, une si faible agressivité vis-à-vis des aciers qu'elles sont coulables en chambre chaude et d'autre part que la variante I présente à l'état coulé une bonne résistance au fluage et une excellente résistance à la traction, tandis que la variante II présente à l'état coulé une excellente résistance au fluage et une bonne résistance à la traction. Les teneurs en Al et Cu, mentionnées ci-dessus, doivent être respectées ; autrement, le point de fusion de l'alliage monte au- dessus de 450° C, ce qui a pour conséquence que l'alliage n'est plus coulable en chambre chaude, car son agressivité vis-à-vis de l'équipement de coulée devient trop grande au-dessus de 460°C.In fact, it has been found on the one hand that the two variants have, in the liquid state, at temperatures not exceeding 460 ° C., such low aggressiveness with respect to the steels that they are pourable in the chamber hot and on the other hand that variant I has in the cast state a good creep resistance and an excellent tensile strength, while variant II has in the cast state an excellent creep resistance and a good resistance to traction. The contents of Al and Cu, mentioned above, must be respected; otherwise, the melting point of the alloy rises above 450 ° C, which means that the alloy is no longer pourable in a hot room, because its aggressiveness towards the casting equipment becomes too great above 460 ° C.
Si la teneur en silicium est inférieure à 0,01 %, la résistance à la traction et la résistance au fluage se détériorent. Une teneur en silicium de plus de 2 % rend l'alliage, à l'état fondu, trop pâteux et trop agressif.If the silicon content is less than 0.01%, the tensile strength and creep resistance deteriorate. A silicon content of more than 2% makes the alloy, in the molten state, too pasty and too aggressive.
Il convient de signaler ici que les alliages suivants ont déjà été décrits : (a) 17-19 Al, 4,5-5,5 Cu, 0,9-1,3 Si, 0,8-1,2 Mg, reste Zn (CS-A-135802)It should be noted here that the following alloys have already been described: (a) 17-19 Al, 4.5-5.5 Cu, 0.9-1.3 Si, 0.8-1.2 Mg, remains Zn (CS-A-135802)
(b) 28,6 Al, 3,1 Cu, 1 Si 0,1 Ca, 0,2 Ni, reste Zn (GB-A-769483)(b) 28.6 Al, 3.1 Cu, 1 Si 0.1 Ca, 0.2 Ni, Zn residue (GB-A-769483)
(c) 20-40 Al, 0-5 Cu, 0-1 Si, 0-0,1 Mg, 0,25-2 d'au moins un métal des métaux des terres rares, reste Zn (US-A-4789522)(c) 20-40 Al, 0-5 Cu, 0-1 Si, 0-0.1 Mg, 0.25-2 of at least one metal of the rare earth metals, residue Zn (US-A-4789522 )
(d) 55 Al, 8 Cu, 6,5 Si, 4,5 Be, 0,12 Ni, 0,6 Ca, reste Zn (US-A-287008) Parmi ces alliages connus, les alliages (a) et (c) sont les plus proches de l'alliage selon l'invention. L'alliage (a) a une teneur trop faible en Cu et une teneur trop élevée en Mg pour qu'il puisse être coulé en chambre chaude. L'alliage (c) présente également une teneur trop faible en Cu ; par ailleurs, il est extrêmement difficile de préparer un alliage contenant 0,25-2 % de métaux des terres rares, ne fût-ce qu'à l'état oxydé, à cause de la grande affinité de ces métaux pour l'oxygène.(d) 55 Al, 8 Cu, 6.5 Si, 4.5 Be, 0.12 Ni, 0.6 Ca, residue Zn (US-A-287008) Among these known alloys, the alloys (a) and ( c) are the closest to the alloy according to the invention. The alloy (a) has too low a Cu content and a too high Mg content for it to be poured in a hot chamber. Alloy (c) also has too low a Cu content; moreover, it is extremely difficult to prepare an alloy containing 0.25-2% of rare earth metals, even in the oxidized state, because of the great affinity of these metals for oxygen.
La variante I contient avantageusement 15-18 % et de préférence 15-17 % Al.Variant I advantageously contains 15-18% and preferably 15-17% Al.
Les teneurs préférentielles en Al et Cu de la variante II sont respectivement de 25,5-28,5 % et 15-18 %.The preferred Al and Cu contents of variant II are 25.5-28.5% and 15-18% respectively.
La teneur préférentielle en Si des deux variantes est de 0,1-1 %.The preferential Si content of the two variants is 0.1-1%.
Les deux variantes peuvent contenir - jusque 0,1 % Mg pour améliorer, si nécessaire, la résistance à la corrosion intercristalline ,*Both variants can contain - up to 0.1% Mg to improve, if necessary, the resistance to intercrystalline corrosion, *
- jusque 0,5 % Ti, jusque 0,5 % Cr et jusque 1 % Mn pour améliorer, si nécessaire, la ductilité ,*- up to 0.5% Ti, up to 0.5% Cr and up to 1% Mn to improve, if necessary, the ductility, *
- jusque 0,5 % Nb pour améliorer, si nécessaire, la résistance à la corrosion externe, c'est-à-dire pour retarder la formation de sels blancs) ,* et- up to 0.5% Nb to improve, if necessary, the resistance to external corrosion, i.e. to delay the formation of white salts), * and
- jusque 0,1 % d'un métal ou d'un mélange de métaux des terres rares pour diminuer, si nécessaire, la tension superficielle de l'alliage à l'état fondu. Une teneur en Mg de plus de 0,1 % rend l'alliage pâteux à l'état fondu et fragile à l'état solide. L'alliage devient également pâteux, lorsque les limites indiquées ci-dessus pour Ti, Cr et Mn sont dépassées. Des teneurs en Nb de plus de 0,5 % et des teneurs en métaux des terres rares de plus de 0,1 % sont difficiles à réaliser à cause de la grande affinité de ces éléments pour l'oxygène.- Up to 0.1% of a metal or a mixture of rare earth metals to reduce, if necessary, the surface tension of the alloy in the molten state. An Mg content of more than 0.1% makes the alloy pasty in the molten state and fragile in the solid state. The alloy also becomes pasty when the limits given above for Ti, Cr and Mn are exceeded. Nb contents of more than 0.5% and rare earth metal contents of more than 0.1% are difficult to achieve because of the great affinity of these elements for oxygen.
Il est souhaitable que le Zn, Al et Cu, utilisés pour fabriquer l'alliage, aient une pureté de respectivement > 99,99 %, ≥ 99,95 % et ≥ 99,99 %, parce qu'il a été trouvé que la présence dans l'alliage d'impuretés influence défavorablement sa fluidité et ses propriétés mécaniques. On utilise de préférence du zinc d'une pureté de > 99,995% et de l'aluminium d'une pureté de > 99,97 %.It is desirable that Zn, Al and Cu, used to make the alloy, have a purity of> 99.99%, ≥ 99.95% and ≥ 99.99% respectively, because it has been found that the the presence of impurities in the alloy adversely influences its fluidity and its mechanical properties. Preferably zinc with a purity of> 99.995% and aluminum with a purity of> 99.97% are used.
II est évident que, lorsque l'alliage contient un métal ayant une très grande affinité pour l'oxygène, tel que par exemple Y, au moins une partie de ce métal peut être présente à l'état oxydé.It is obvious that, when the alloy contains a metal having a very high affinity for oxygen, such as for example Y, at least a part of this metal can be present in the oxidized state.
La bonne résistance au fluage de la variante I et l'excellente résistance au fluage de la variante II de l'alliage selon l'invention sont illustrées . la description ci-dessous d'une série d'essais comparatifs, dont les résultats sont donnés dans le diagramme ci- joint.The good creep resistance of variant I and the excellent creep resistance of variant II of the alloy according to the invention are illustrated. the description below of a series of comparative tests, the results of which are given in the attached diagram.
On a testé deux alliages connus, Za ak 5 et ACuZinc 5, et deux alliages selon l'invention, un premier selon la variante I, qui sera désigné ci-après par "X27" et un second selon la variante II, qui sera désigné ci-après par "X28" Composition de ces alliages : - Zamak 5 4% Al, 1% Cu, 0,04% Mg, reste Zn ;Two known alloys were tested, Za ak 5 and ACuZinc 5, and two alloys according to the invention, a first according to variant I, which will be designated below by "X27" and a second according to variant II, which will be designated hereafter by "X28" Composition of these alloys: - Zamak 5 4% Al, 1% Cu, 0.04% Mg, Zn residue;
ACuZinc 5 3% Al, 5,5% Cu, 0,04% Mg, reste Zn ;ACuZinc 5 3% Al, 5.5% Cu, 0.04% Mg, residue Zn;
X27 17% Al, 9,5% Cu, 0,5% Si, reste Zn ;X27 17% Al, 9.5% Cu, 0.5% Si, remains Zn;
X28 27% Al, 16,5% Cu, 0,1% Si, reste Zn.X28 27% Al, 16.5% Cu, 0.1% Si, remains Zn.
On a coulé des éprouvettes de ces alliages dans une machine à chambre chaude.Test pieces of these alloys were poured into a hot chamber machine.
Les conditions générales de coulée étaient comme suit : temps de cycle : 12 secondes température du bain : 420-460°C - pression exercée sur le métal : 50 MPa vitesse du piston : 1,2 m/s diamètre de buse : 9,5 mm température du moule : 180-250°C La forme et les dimensions de ces éprouvettes sont celles prescrites par le Comité Technique des Producteurs Européens de Zinc pour les éprouvettes à utiliser dans l'essai de traction des tôles et feuilles en zinc et en alliages de zinc.The general casting conditions were as follows: cycle time: 12 seconds bath temperature: 420-460 ° C - pressure exerted on the metal: 50 MPa piston speed: 1.2 m / s nozzle diameter: 9.5 mm mold temperature: 180-250 ° C The shape and dimensions of these test pieces are those prescribed by the Technical Committee of European Zinc Producers for test pieces to be used in the tensile test of sheets and sheets of zinc and zinc alloys.
Les éprouvettes ont été soumises à l'essai de fluage à 100°C sous une charge de 40 MPa. Les courbes de fluage, donnant l'allongement (en %) mesuré en fonction du temps (en heures) , sont représentées au diagramme ci-joint.The test pieces were subjected to the creep test at 100 ° C. under a load of 40 MPa. The creep curves, giving the elongation (in%) measured as a function of time (in hours), are shown in the attached diagram.
On voit que les alliages selon l'invention, et notamment l'alliage selon la variante II, résistent beaucoup mieux au fluage que les alliages connus.It can be seen that the alloys according to the invention, and in particular the alloy according to variant II, resist creep much better than the known alloys.
L'excellente résistance à la traction et la dureté très élevée de la variante I et la bonne résistance à la traction et la dureté convenable de la variante II de l'alliage selon l'invention sont illustrées par les données consignées dans le tableau ci-dessous.The excellent tensile strength and very high hardness of variant I and the good tensile strength and suitable hardness of variant II of the alloy according to the invention are illustrated by the data given in the table below. below.
TableauBoard
Alliage Résistance à la traction Dureté Vickers (Mpa) (5 Kgf)Alloy Tensile strength Vickers hardness (Mpa) (5 Kgf)
Zamak 5 286 105Zamak 5,286,105
ACuZinc 5 270 -ACuZinc 5 270 -
X27 435 181X27 435 181
X28 276 140X28 276 140
Les essais de traction ont été effectués à la température ambiante avec une vitesse de traction de 1 cm/min sur des éprouvettes d'une épaisseur de 3 mm, fabriquées comme décrit plus haut.The tensile tests were carried out at room temperature with a tensile speed of 1 cm / min on test pieces with a thickness of 3 mm, manufactured as described above.
La présente invention se rapporte également à un procédé de fabrication d'articles en un alliage à base de zinc contenant Al et Cu par coulée sous pression dans une machine à chambre chaude, ce procédé étant caractérisé en ce que l'alliage est l'alliage de l'invention et en ce que la coulée est effectuée à une température égale ou inférieure à 460° C. Comme l'alliage de l'invention est coulable en chambre chaude, il est forcément coulable en chambre froide et en gravité.The present invention also relates to a process for manufacturing articles of a zinc-based alloy containing Al and Cu by die-casting in a hot chamber machine, this process being characterized in that the alloy is the alloy of the invention and in that the casting is carried out at a temperature equal to or less than 460 ° C. As the alloy of the invention is pourable in a hot room, it is necessarily pourable in a cold room and by gravity.
La présente invention se rapporte donc également à un procédé de fabrication d'articles en un alliage à base de zinc contenant Al et Cu par coulée sous pression dans une machine à chambre froide ou par coulée en gravité, ce procédé étant caractérisé en ce que l'alliage est l'alliage de l'invention.The present invention therefore also relates to a process for manufacturing articles of a zinc-based alloy containing Al and Cu by pressure casting in a cold chamber machine or by gravity casting, this process being characterized in that the alloy is the alloy of the invention.
La présente invention se rapporte en outre à l'utilisation de l'alliage selon l'invention comme matériau antifriction. The present invention also relates to the use of the alloy according to the invention as an anti-friction material.

Claims

REVENDICATIONS
1. Alliage à base de zinc contenant Al et Cu, coulable sous pression dans une machine à chambre chaude, caractérisé en ce qu'il contient, en % en poids, 15-20 Al, 8-10 Cu, 0,01-2 Si, 0-0,1 Mg, 0-0,5 Ti, 0-0,5 Cr, 0-1 Mn, 0-0,5 Nb et 0-0,1 d'un métal ou d'un mélange de métaux des terres rares, le reste étant du zinc et les impuretés inévitablement présentes dans le zinc et les éléments d'alliage précités.1. Zinc-based alloy containing Al and Cu, flowable under pressure in a hot chamber machine, characterized in that it contains, in% by weight, 15-20 Al, 8-10 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr, 0-1 Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, the remainder being zinc and the impurities inevitably present in the aforementioned zinc and the alloying elements.
2. Alliage à base de zinc contenant Al et Cu, coulable sous pression dans une machine à chambre chaude, caractérisé en ce qu'il contient, en % en poids, 25-30 Al, 15-20 Cu, 0,01-2 Si, 0-0,1 Mg, 0-0,5 Ti, 0-0,5 Cr, 0-1 Mn, 0-0,5 Nb et 0-0,1 d'un métal ou d'un mélange de métaux des terres rares, le reste étant du zinc et les impuretés inévitablement présentes dans le zinc et les éléments d'alliage précités.2. Zinc-based alloy containing Al and Cu, flowable under pressure in a hot chamber machine, characterized in that it contains, in% by weight, 25-30 Al, 15-20 Cu, 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr, 0-1 Mn, 0-0.5 Nb and 0-0.1 of a metal or a mixture of rare earth metals, the remainder being zinc and the impurities inevitably present in the aforementioned zinc and the alloying elements.
3. Alliage selon la revendication 1, caractérisé en ce qu'il contient 15-18 et de préférence 15-17 Al.3. Alloy according to claim 1, characterized in that it contains 15-18 and preferably 15-17 Al.
4. Alliage selon la revendication 2, caractérisé en ce qu'il contient 25,5-28,5 Al et 15-18 Cu.4. Alloy according to claim 2, characterized in that it contains 25.5-28.5 Al and 15-18 Cu.
5. Alliage selon l'une quelconque des revendications 1-4, caractérisé en ce qu'il contient 0,1-1 Si.5. Alloy according to any one of claims 1-4, characterized in that it contains 0.1-1 Si.
6. Alliage selon l'une quelconque des revendications 1-6, caractérisé en ce que Zn, Al et Cu ont une pureté de respectivement > 99,99 %, > 99,95% et ≥ 99,99%.6. Alloy according to any one of claims 1-6, characterized in that Zn, Al and Cu have a purity of> 99.99%,> 99.95% and ≥ 99.99% respectively.
7. Procédé de fabrication d'articles en un alliage à base de zinc contenant Al et Cu par coulée sous pression dans une machine à chambre chaude, caractérisé en ce que l'alliage est l'alliage selon les revendications 1-6 et en ce que la coulée est effectuée à une température égale ou inférieure à 460° C. 7. A method of manufacturing articles in a zinc-based alloy containing Al and Cu by pressure casting in a hot chamber machine, characterized in that the alloy is the alloy according to claims 1-6 and in that that the casting is carried out at a temperature equal to or lower than 460 ° C.
8. Procédé de fabrication d'articles en un alliage à base de zinc contenant Al et Cu par coulée sous pression dans une machine à chambre froide ou par coulée en gravité, caractérisé en ce que l'alliage est l'alliage selon les revendications 1-6.8. A method of manufacturing articles in a zinc-based alloy containing Al and Cu by pressure casting in a cold room machine or by gravity casting, characterized in that the alloy is the alloy according to claims 1 -6.
9. Utilisation de l'alliage selon les revendications 1-6 comme matériau antifriction. 9. Use of the alloy according to claims 1-6 as anti-friction material.
EP95926933A 1994-07-18 1995-07-12 Hot chamber castable zinc alloy Expired - Lifetime EP0771365B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9400676A BE1008479A3 (en) 1994-07-18 1994-07-18 Zinc alloy castable room hot.
BE9400676 1994-07-18
PCT/EP1995/002820 WO1996002682A1 (en) 1994-07-18 1995-07-12 Hot chamber castable zinc alloy

Publications (2)

Publication Number Publication Date
EP0771365A1 true EP0771365A1 (en) 1997-05-07
EP0771365B1 EP0771365B1 (en) 1998-11-04

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EP95926933A Expired - Lifetime EP0771365B1 (en) 1994-07-18 1995-07-12 Hot chamber castable zinc alloy

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JP (1) JP3800345B2 (en)
KR (1) KR100343309B1 (en)
AT (1) ATE173029T1 (en)
AU (1) AU3113995A (en)
BE (1) BE1008479A3 (en)
BR (1) BR9507577A (en)
CA (1) CA2185013C (en)
CZ (1) CZ287825B6 (en)
DE (1) DE69505820T2 (en)
DK (1) DK0771365T3 (en)
ES (1) ES2126301T3 (en)
FI (1) FI114400B (en)
PE (1) PE12696A1 (en)
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WO (1) WO1996002682A1 (en)

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KR100961081B1 (en) * 2009-03-03 2010-06-08 임현규 Zinc-aluminium alloys with high strength and low density
KR101955995B1 (en) * 2017-03-21 2019-03-08 주식회사 지.에이.엠 High strength aluminium-zinc alloy and high strength aluminium-zinc alloy casting
CN112522540A (en) * 2020-12-01 2021-03-19 江苏同生特钢制造有限公司 Zinc alloy casting and preparation method thereof

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
GB769483A (en) * 1953-06-30 1957-03-06 Willi Neu Zinc aluminium alloy and process for the production thereof
US2870008A (en) * 1954-11-18 1959-01-20 Main Alloy Company Establishme Zinc-aluminium alloys and the method for producing same
US4789522A (en) * 1986-06-27 1988-12-06 Queen's University At Kingston Castable zinc-aluminum alloys

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9602682A1 *

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ES2126301T3 (en) 1999-03-16
DK0771365T3 (en) 1999-07-19
PL178557B1 (en) 2000-05-31
CZ287825B6 (en) 2001-02-14
BR9507577A (en) 1997-09-09
AU3113995A (en) 1996-02-16
BE1008479A3 (en) 1996-05-07
WO1996002682A1 (en) 1996-02-01
FI970177A (en) 1997-01-16
DE69505820T2 (en) 1999-07-08
EP0771365B1 (en) 1998-11-04
KR100343309B1 (en) 2002-11-25
JPH10502705A (en) 1998-03-10
PL318133A1 (en) 1997-05-12
CA2185013A1 (en) 1996-02-01
JP3800345B2 (en) 2006-07-26
CA2185013C (en) 2006-08-29
DE69505820D1 (en) 1998-12-10
ATE173029T1 (en) 1998-11-15
FI970177A0 (en) 1997-01-16
CZ5197A3 (en) 1997-04-16
PE12696A1 (en) 1996-04-23
FI114400B (en) 2004-10-15

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