CN105401022A - High-toughness corrosion-resistant aluminum alloy and preparation method thereof - Google Patents
High-toughness corrosion-resistant aluminum alloy and preparation method thereof Download PDFInfo
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- CN105401022A CN105401022A CN201510786745.XA CN201510786745A CN105401022A CN 105401022 A CN105401022 A CN 105401022A CN 201510786745 A CN201510786745 A CN 201510786745A CN 105401022 A CN105401022 A CN 105401022A
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Abstract
The invention discloses high-toughness corrosion-resistant aluminum alloy. The high-toughness corrosion-resistant aluminum alloy is prepared from, by weight, 2.5%-3.4% of zinc, 2.2%-2.6% of magnesium, 0.1%-0.3% of copper, 0.8%-1.6% of iron, 0.5%-1.5% of manganese, 0.5%-1.5% of rhenium, 0.1%-0.2% of chrome, 1.1%-1.5% of titanium, 1.5%-2.5% of boron and the balance aluminum. The invention further provides a preparation method of the high-toughness corrosion-resistant aluminum alloy. The prepared aluminum alloy is good in toughness and corrosion resisting effect.
Description
Technical field
The present invention relates to aluminium alloy and preparation method thereof, particularly relate to anticorrosion aluminium alloy of a kind of high tenacity and preparation method thereof.
Background technology
At present, since the mankind start metal smelting and use metal products, corrosion of metal and protection question are also just together.Corrosion of metal is huge to the loss that society causes.According to statistics, the metal that people smelt out every year about has 1/10 to be damaged by corrosion, and being equivalent to about has the smeltery of 1/10 to do idle work because of the existence of corrosion every year; And the destruction of the metal products that the metal that 1/10 is damaged by corrosion brings disaster to, its loss will be far longer than the value of metal itself; And the loss of the shut-down caused thus, stopping production and personal injury is difficult to the appraisal especially.So metallic corrosion and protection question cause the great attention of people.Aluminium zinc is a kind of novel anticorrosion material, is mainly used in the coating of metallic surface, compares with fine aluminium coating with pure zinc, it has adhesivity after being coated with strong, wear resistance and erosion resistance better, the features such as workability is superior, thus obtain and apply comparatively widely, and become the focus of people's research.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes anticorrosion aluminium alloy of a kind of high tenacity and preparation method thereof, and the aluminium alloy toughness prepared is high, and Corrosion Protection is good.
The anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, its element comprises by weight percentage: zinc 2.5-3.4%, magnesium 2.2-2.6%, copper 0.1-0.3%, iron 0.8-1.6%, manganese 0.5-1.5%, rhenium 0.5-1.5%, chromium 0.1-0.2%, titanium 1.1-1.5%, boron 1.5-2.5%, and surplus is aluminium.
Preferably, its element comprises by weight percentage: zinc 2.5-3.4%, magnesium 2.3-2.5%, copper 0.15-0.25%, iron 0.9-1.5%, manganese 0.8-1.2%, rhenium 0.8-1.2%, chromium 0.12-0.18%, titanium 1.2-1.4%, boron 1.8-2.2%, and surplus is aluminium.
Preferably, its element comprises by weight percentage: zinc 2.95%, magnesium 2.4%, copper 0.2%, iron 1.2%, manganese 1.0%, rhenium 1.0%, chromium 0.15%, titanium 1.3%, boron 2.0%, and surplus is aluminium.
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, zinc powder, magnesium powder, copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder are formed aluminium alloy 850-950 DEG C of melting, utilize argon tanks to jet argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheats 40-45min, and insulation 2-3h, then carries out precooling treatment and obtain material b in clear water;
S4, material b is carried out quench treatment, then the foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
Preferably, in S1, after aluminium ingot is smelted into liquid state at 850-950 DEG C, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment.
Preferably, the one package stabilizer in S2 is mixed by weight for 1-3:2-5 by methanesulfonic tin and 2-mercaptobenzothiazole.
Preferably, in S3, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C.
Preferably, in S4, the temperature of quench treatment is 760-780 DEG C, and the time of quench treatment is 4-7min.
In the present invention, existing preparation process of aluminium alloy is improved, explore the preparation technology's system forming new high tenacity corrosion resistance aluminium alloy, thus prepare high tenacity corrosion resistance aluminium alloy of good performance; In above-mentioned process system, optimize alloying constituent and the alloying technology of aluminium alloy; Work in coordination with technique by casting-precooling-quenching-tempering is carried out considering, and reasonable set is carried out to processing parameter, make in high tenacity corrosion resistance aluminium alloy forming process, deformation is reasonable, and in melting process, synchronously complete the Metamorphism treatment of alloy liquid, and carry out refinement and deoxidation by adding one package stabilizer, give full play to the strengthening effect of alloying element, form well-distributed strengthening phase, thus make the final anticorrosion aluminium alloy of high tenacity obtained have good mechanical property and corrosion resistance.
And Al is alloying element maximum in aluminium zinc.In the eutectic melt of low melting point, Al has very strong retardation to base steel generation Fe-Zn alloy layer reaction in the melt.Al is enriched on the interface of base steel and coating, and this can not only block the reaction of Fe-Zn alloy layer, and can also prevent interface from cracking.Rich aluminium is on good terms and is promoted the nucleation capability of rich zinc phase, and in eutectic phase, rich aluminium can make processing forming better than other coating with the staggered lamellar structure of rich zinc.The retardation of aluminium is owing to generating Fe at steel substrate surface
2al
5protective layer.Al can also make coating gloss significantly improve, because the avidity of Al and O is larger than Zn and O, so generate one deck Al at coating surface
2o
3protective membrane, prevent the oxidation of coating surface, Al can also improve the mobility of zinc liquid, reduce coating thick.Add the corrosion resistance that magnesium can increase zn-al alloy coating in zinc, suppress the grain boundary corrosion of aluminium zinc, eliminate the detrimentally affect of impurity element S n and Cd in aluminium zinc.The coating erosion resistance in the seawater of adding magnesium in low aluminum zn-based alloys improves a lot.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
Embodiment 1
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, aluminium ingot is smelted into liquid state at 900 DEG C after, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, and alloy liquid carries out the regulation and control of component, after regulation and control, the component of aluminium alloy is: zinc 2.95%, magnesium 2.4%, copper 0.2%, iron 1.2%, manganese 1.0%, rhenium 1.0%, chromium 0.15%, titanium 1.3%, boron 2.0%, and surplus is aluminium; Then utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a, and wherein, one package stabilizer is mixed by weight for 2:3.5 by methanesulfonic tin and 2-mercaptobenzothiazole;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 1000 DEG C of preheating 40min, reheat 42.5min, insulation 2.5h, then carries out precooling treatment and obtains material b in clear water, wherein, the time of precooling treatment is 3.5min, and the temperature of clear water is 39.5 DEG C;
S4, material b is carried out quench treatment, the temperature of quench treatment is 770 DEG C, and the time of quench treatment is 5.5min, then the foundry goods after quench treatment is warming up to 195 DEG C and carries out temper, the time of temper is 5.5h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
Embodiment 2
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, aluminium ingot is smelted into liquid state at 850 DEG C after, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, and alloy liquid carries out the regulation and control of component, after regulation and control, the component of aluminium alloy is: zinc 2.5%, magnesium 2.5%, copper 0.15%, iron 1.5%, manganese 0.8%, rhenium 1.2%, chromium 0.12%, titanium 1.4%, boron 1.8%, and surplus is aluminium; Then utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a, and wherein, one package stabilizer is mixed by weight for 1:5 by methanesulfonic tin and 2-mercaptobenzothiazole;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 950 DEG C of preheating 45min, reheat 40min, insulation 3h, then carries out precooling treatment and obtains material b in clear water, wherein, the time of precooling treatment is 3min, and the temperature of clear water is 42 DEG C;
S4, material b is carried out quench treatment, the temperature of quench treatment is 760 DEG C, and the time of quench treatment is 7min, then the foundry goods after quench treatment is warming up to 180 DEG C and carries out temper, the time of temper is 6h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
Embodiment 3
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, aluminium ingot is smelted into liquid state at 950 DEG C after, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, and alloy liquid carries out the regulation and control of component, after regulation and control, the component of aluminium alloy is: zinc 3.4%, magnesium 2.2%, copper 0.3%, iron 0.8%, manganese 1.5%, rhenium 0.5%, chromium 0.2%, titanium 1.1%, boron 2.5%, and surplus is aluminium; Then utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a, and wherein, one package stabilizer is mixed by weight for 3:2 by methanesulfonic tin and 2-mercaptobenzothiazole;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 1050 DEG C of preheating 35min, reheat 45min, insulation 2h, then carries out precooling treatment and obtains material b in clear water, wherein, the time of precooling treatment is 4min, and the temperature of clear water is 37 DEG C;
S4, material b is carried out quench treatment, the temperature of quench treatment is 780 DEG C, and the time of quench treatment is 4min, then the foundry goods after quench treatment is warming up to 210 DEG C and carries out temper, the time of temper is 5h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
Embodiment 4
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, aluminium ingot is smelted into liquid state at 855 DEG C after, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, and alloy liquid carries out the regulation and control of component, after regulation and control, the component of aluminium alloy is: zinc 2.5%, magnesium 2.5%, copper 0.15%, iron 1.5%, manganese 0.8%, rhenium 1.2%, chromium 0.12%, titanium 1.4%, boron 1.8%, and surplus is aluminium; Then utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a, and wherein, one package stabilizer is mixed by weight for 1.5:4.5 by methanesulfonic tin and 2-mercaptobenzothiazole;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 960 DEG C of preheating 42min, reheat 41min, insulation 2.8h, then carries out precooling treatment and obtains material b in clear water, wherein, the time of precooling treatment is 3.2min, and the temperature of clear water is 41 DEG C;
S4, material b is carried out quench treatment, the temperature of quench treatment is 765 DEG C, and the time of quench treatment is 6min, then the foundry goods after quench treatment is warming up to 185 DEG C and carries out temper, the time of temper is 5.8h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
Embodiment 5
The preparation method of the anticorrosion aluminium alloy of a kind of high tenacity that the present invention proposes, comprises the steps:
S1, aluminium ingot is smelted into liquid state at 945 DEG C after, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, zinc powder and magnesium powder formation aluminium alloy is added after fusing, and alloy liquid carries out the regulation and control of component, after regulation and control, the component of aluminium alloy is: zinc 3.4%, magnesium 2.3%, copper 0.25%, iron 0.9%, manganese 1.2%, rhenium 0.8%, chromium 0.18%, titanium 1.2%, boron 2.2%, and surplus is aluminium; Then utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a, and wherein, one package stabilizer is mixed by weight for 2.5:2.5 by methanesulfonic tin and 2-mercaptobenzothiazole;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 1040 DEG C of preheating 38min, reheat 44min, insulation 2.2h, then carries out precooling treatment and obtains material b in clear water, wherein, the time of precooling treatment is 3.8min, and the temperature of clear water is 38 DEG C;
S4, material b is carried out quench treatment, the temperature of quench treatment is 775 DEG C, and the time of quench treatment is 5min, then the foundry goods after quench treatment is warming up to 205 DEG C and carries out temper, the time of temper is 5.2h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. the anticorrosion aluminium alloy of high tenacity, it is characterized in that, its element comprises by weight percentage: zinc 2.5-3.4%, magnesium 2.2-2.6%, copper 0.1-0.3%, iron 0.8-1.6%, manganese 0.5-1.5%, rhenium 0.5-1.5%, chromium 0.1-0.2%, titanium 1.1-1.5%, boron 1.5-2.5%, and surplus is aluminium.
2. the anticorrosion aluminium alloy of high tenacity according to claim 1, it is characterized in that, zinc 2.5-3.4%, magnesium 2.3-2.5%, copper 0.15-0.25%, iron 0.9-1.5%, manganese 0.8-1.2%, rhenium 0.8-1.2%, chromium 0.12-0.18%, titanium 1.2-1.4%, boron 1.8-2.2%, surplus is aluminium.
3. the anticorrosion aluminium alloy of high tenacity according to claim 1 and 2, is characterized in that, zinc 2.95%, magnesium 2.4%, copper 0.2%, iron 1.2%, manganese 1.0%, rhenium 1.0%, chromium 0.15%, titanium 1.3%, boron 2.0%, and surplus is aluminium.
4. a preparation method for the anticorrosion aluminium alloy of the high tenacity according to any one of claim 1-3, is characterized in that, comprise the steps:
S1, zinc powder, magnesium powder, copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder are formed aluminium alloy 850-950 DEG C of melting, utilize argon tanks to jet argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy crossed through Metamorphism treatment in S1 add one package stabilizer, and then refinement and deoxidation obtains material a;
S3, poured into a mould by material a, through casting, cleaning, obtains foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheats 40-45min, and insulation 2-3h, then carries out precooling treatment and obtain material b in clear water;
S4, material b is carried out quench treatment, then the foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6h, obtains the anticorrosion aluminium alloy of high tenacity after cool to room temperature.
5. the anticorrosion aluminium alloy of the high tenacity according to any one of claim 1-4, it is characterized in that, in S1, after aluminium ingot is smelted into liquid state at 850-950 DEG C, add copper billet, iron block, manganese ingot, rhenium ingot, chromium powder, titanium ingot and boron powder, add zinc powder and magnesium powder formation aluminium alloy after fusing, utilize argon tanks winding-up argon gas, nanometer silicon carbide even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment.
6. the anticorrosion aluminium alloy of the high tenacity according to any one of claim 1-5, is characterized in that, the one package stabilizer in S2 is mixed by weight for 1-3:2-5 by methanesulfonic tin and 2-mercaptobenzothiazole.
7. the anticorrosion aluminium alloy of the high tenacity according to any one of claim 1-6, is characterized in that, in S3, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C.
8. the anticorrosion aluminium alloy of the high tenacity according to any one of claim 1-7, is characterized in that, in S4, the temperature of quench treatment is 760-780 DEG C, and the time of quench treatment is 4-7min.
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| CN106636810A (en) * | 2016-12-10 | 2017-05-10 | 钦州学院 | Aluminum alloy plate and preparation method |
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Inventor after: Dong Qiongqiong Inventor before: Li Zhengyuan |
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Effective date of registration: 20161215 Address after: 230601, Hefei economic and Technological Development Zone, Anhui, stone road, No. 339, No. 22, Venus commercial building, floor two, 2006 Applicant after: Hefei Yi Yuanxin Material Co., Ltd. Address before: Hefei City, Anhui province water 230000 Yangjiang Road, building 6 seasons flowers Lang Yunyuan block C Room 601 Applicant before: HEFEI BIAOBING KAIJI NEW MATERIALS CO., LTD. |
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Application publication date: 20160316 |