CN107937768A - A kind of extrusion casint aluminum alloy materials and preparation method thereof - Google Patents

A kind of extrusion casint aluminum alloy materials and preparation method thereof Download PDF

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Publication number
CN107937768A
CN107937768A CN201711366311.XA CN201711366311A CN107937768A CN 107937768 A CN107937768 A CN 107937768A CN 201711366311 A CN201711366311 A CN 201711366311A CN 107937768 A CN107937768 A CN 107937768A
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aluminum alloy
alloy materials
extrusion casint
manganese
silicon
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CN107937768B (en
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李新豪
陈苏坚
李升�
李旭涛
陈定贤
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Guangzhou Zhiyuan New Mstar Technology Ltd
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Guangzhou Zhiyuan New Mstar Technology Ltd
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • C22C21/04Modified aluminium-silicon alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/06Making non-ferrous alloys with the use of special agents for refining or deoxidising

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Of Metal (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

The present invention provides a kind of extrusion casint aluminum alloy materials and preparation method thereof, and extrusion casint aluminum alloy materials of the invention by weight, include following component:Silicon is 8% 12%;Iron is < 0.9%;Copper is 1 4%;Manganese is 0.2 0.8%;Magnesium is 0.3% 0.8%, and zinc be < 0.35%, and tin is≤0.01%, and cadmium is≤0.01%;Other impurities total amount and no more than 0.3%;Surplus is aluminium.The extrusion casint aluminium alloy of the present invention has preferable tensile strength, yield strength and hardness, and can meet heavy wall pipe shaping thin wall at the same time.

Description

A kind of extrusion casint aluminum alloy materials and preparation method thereof
Technical field
The invention belongs to aluminum alloy materials field, and in particular to a kind of extrusion casint aluminum alloy materials and preparation method thereof.
Background technology
Aluminium alloy is that one kind is conducive to the light-weighted more performance materials of equipment.By adjusting the difference of various elements component, Aluminium alloy can have high heat conduction, high conductivity, high-yield strength, high-tensile, anticorrosive, high tenacity, high rigidity respectively Etc. different performances.It is widely used in the fields such as communication, automobile, communications and transportation, power and space flight and aviation.With science and technology it is continuous Development, requirement of the new and high technology for material are also higher and higher.In the past single performance can not meet that the development of technology will Ask.Not only the chemical composition basic to its has strict requirements to present aluminum alloy materials, it is also necessary to meets various special make With requiring, multiple performance is taken into account.Among these performances, some were even considered mutually in the past, and there are certain contradiction. For different materials'use features, by itself specific requirement, various composition in material and its performance are rationally adjusted Match somebody with somebody, optimize, be allowed to create a kind of corresponding new aluminum alloy materials be current so that one section of developing period from now on it is objective Need.
ADC12 is the Japanese trade mark, also known as No. 12 aluminium material, Al-Si-Cu systems alloy, is that one kind can die casting also extrudable casting Aluminium alloy, be adapted to cylinder head the cover, sensor stand, cylinder body class etc..Its die casting performance is good, and has certain power Performance is learned, so being widely used in various general casting.But since die casting is using the mode of high speed and high pressure, die casting Gas is inevitably involved in, influences quality.And extrusion casint is a kind of casting mode of low speed heavy pressure, its feature It is volume gas phenomenon when can substantially reduce casting shaping in die cavity, improves the compactness of casting, improves the quality of casting.It It is a kind of casting molding mode for meeting high performance requirements.For higher mechanical property requirements, existing ADC12 alloys It cannot all be met by the way of die casting or extrusion casint.Therefore, it is excellent to be badly in need of a kind of performance ratio ADC12 alloys, and It can meet the aluminum alloy materials of heavy wall pipe thin-walled squeeze cast form at the same time.
The content of the invention
In view of the deficiencies of the prior art, the present invention, which provides one kind, can meet heavy wall pipe shaping thin wall, and tension at the same time Intensity, yield strength and the more preferable extrusion casint aluminum alloy materials of hardness and preparation method thereof.
The present invention provides a kind of extrusion casint aluminum alloy materials, in addition to aluminum, by weight, including following component:Silicon is 8%-12%;Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, and zinc is < 0.35%.
Preferably, the extrusion casint aluminum alloy materials further include lead as≤0.1%.
Preferably, the extrusion casint aluminum alloy materials further include tin as≤0.01%.
Preferably, the extrusion casint aluminum alloy materials further include cadmium as≤0.01%.
The present invention also provides a kind of extrusion casint aluminum alloy materials, by weight, include following component:Silicon is 8%- 12%;Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, and zinc is < 0.35%,;Tin is ≤ 0.01%, cadmium is≤0.01%;Other impurities total amount and no more than 0.3%;Surplus is aluminium.
Preferably, the iron is 0.15%-0.9%.
Preferably, the zinc is 0.05%-0.35%.
Preferably, silicon 10%-12%;Iron is 0.1%-0.5%;Copper is 2%-3%;Manganese is 0.4%-0.8%;Magnesium is 0.4%-0.8%, zinc 0.05-0.35%.
Preferably, silicon 10%-11.5%;Iron is 0.1%-0.3%;Copper is 2%-2.9%;Manganese is 0.4%-0.6%; Magnesium is 0.4%-0.6%, zinc 0.05-0.1%.
The present invention also provides a kind of preparation method of above-mentioned extrusion casint aluminum alloy materials, include the following steps:
(1) aluminium ingot and silicon are put into smelting furnace, heating makes it be molten into molten metal;
(2) treat that molten metal temperature reaches 800 DEG C -880 DEG C, add manganese additive, ferro element additive and copper coin Plain additive;
(3) molten metal is cooled to 760-780 DEG C;
(4) add refining agent and carry out refining purification, slagging-off;
(5) add magnesium and make its fusing, then add a small amount of antimony element additive and go bad, obtain molten aluminum;
(6) by temperature of aluminum liquid in 740-760 DEG C of scope cast aluminum alloys ingot.
The present invention extrusion casint aluminum alloy materials by after extrusion casint have higher tensile strength, yield strength and Hardness, and can meet heavy wall pipe shaping thin wall at the same time.
Embodiment
Technical solution of the present invention is described in further detail with reference to specific embodiment, so that the technology of this area Personnel can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
The embodiment of the present invention provides a kind of extrusion casint aluminum alloy materials, in addition to aluminum, by weight, including such as the following group Point:Silicon is 8%-12%;Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, zinc < 0.35%.
In a preferred embodiment, extrusion casint aluminum alloy materials further include lead as≤0.1%.
In a preferred embodiment, extrusion casint aluminum alloy materials further include tin as≤0.01%.
In a preferred embodiment, extrusion casint aluminum alloy materials further include cadmium as≤0.01%.
The present invention also provides a kind of extrusion casint aluminum alloy materials, by weight, include following component:Silicon is 8%- 12%;Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, and zinc is < 0.35%,;Tin is ≤ 0.01%, cadmium is≤0.01%;Other impurities total amount and no more than 0.3%;Surplus is aluminium.
In a preferred embodiment, iron 0.15%-0.9%.
In a preferred embodiment, zinc 0.05%-0.35%.
In a preferred embodiment, silicon 10%-12%;Iron is 0.1%-0.5%;Copper is 2%-3%;Manganese is 0.4%- 0.8%;Magnesium is 0.4%-0.8%, zinc 0.05-0.35%.
In a preferred embodiment, silicon 10%-11.5%;Iron is 0.1%-0.3%;Copper is 2%-2.9%;Manganese is 0.4%-0.6%;Magnesium is 0.4%-0.6%, zinc 0.05-0.1%.
The present invention also provides a kind of preparation method of above-mentioned extrusion casint aluminum alloy materials, include the following steps:
(1) aluminium ingot and silicon are put into smelting furnace, heating makes it be molten into molten metal;
(2) treat that molten metal temperature reaches 800 DEG C -880 DEG C, add manganese additive, ferro element additive and copper coin Plain additive;
(3) molten metal is cooled to 760-780 DEG C;
(4) add refining agent and carry out refining purification, slagging-off;
(5) add magnesium and make its fusing, then add a small amount of antimony element additive and go bad, obtain molten aluminum;
(6) by temperature of aluminum liquid in 740-760 DEG C of scope cast aluminum alloys ingot.
The present invention extrusion casint aluminum alloy materials by after extrusion casint have preferable tensile strength, yield strength and Hardness, and can meet heavy wall pipe shaping thin wall at the same time.
The extrusion casint aluminium alloy of the embodiment of the present invention can greatly improve the properties of casting after T6 is heat-treated.
The extrusion casint aluminum alloy materials of the embodiment of the present invention are suitable for extrusion casint, material good moldability.Extrudable casting Thick member is made, can also meet the thin-wall part extrusion casint of 0.35-0.5mm thickness.It is adapted to various mechanical structured members, communication apparatus part Deng.
Embodiment 1
Raw material proportioning, count by weight percentage:Silicon, content 11.06%;Iron, content 0.165%;Copper, content are 2.75%;Manganese, content 0.475%;Magnesium, content 0.494%, zinc, content 0.0695%, lead, content for≤ 0.0021%;Tin, content are≤0.00058%;Cadmium, content are≤0.00052%;Surplus is aluminium.
Alloy is prepared according to said ratio, step is as follows:
Aluminium ingot and silicon are put into smelting furnace, and heating makes it be molten into metallic solution, the temperature of metallic solution is reached 830 ℃;Manganese additive, ferro element additive and copper additive carry out alloying in metallic solution, are completely melt it Molten metal is cooled to 770 DEG C afterwards, refining agent is then added and carries out refining purification, slagging-off;Add magnesium and make its fusing, adopt Degasification is carried out to metallic solution with nitrogen then to metallic solution inspection by sampling component, is subsequently added into additive containing antimony element, then By temperature of aluminum liquid in 740-760 DEG C of scope cast aluminum alloys ingot.
Embodiment 2
Raw material proportioning, count by weight percentage:Silicon, content 10.87%;Iron, content 0.189%;Copper, content are 2.75%;Manganese, content 0.472%;Magnesium, content 0.472%, zinc, content 0.0689%, lead, content for≤ 0.0026%;Tin, content are≤0.00065%;Cadmium, content are≤0.00060%;Surplus is aluminium.
Alloy is prepared according to said ratio, step is as follows:
Aluminium ingot and silicon are put into smelting furnace, and heating makes it be molten into metallic solution, the temperature of metallic solution is reached 830 ℃;Manganese additive, ferro element additive and copper additive carry out alloying in metallic solution, are completely melt it Molten metal is cooled to 770 DEG C afterwards, refining agent is then added and carries out refining purification, slagging-off;Add magnesium and make its fusing, adopt Degasification is carried out to metallic solution with nitrogen then to metallic solution inspection by sampling component, is subsequently added into additive containing antimony element, then By temperature of aluminum liquid in 740-760 DEG C of scope cast aluminum alloys ingot.
Comparative example
By Japanese ADC12 as a comparison case, the main chemical compositions standard of ADC12 is:
Copper (Cu) 1.5-3.5, silicon (Si) 9.6-12.0, magnesium (Mg)≤0.3, zinc (Zn)≤1.0, iron (Fe)≤1.3, manganese (Mn)≤0.5, tin (Sn)≤0.3, lead (Pb)≤0.1, cadmium (Cd)≤0.005, surplus are aluminium (Al).
Effect example
Mechanics Performance Testing
By the ADC12 alloys of embodiment 1, embodiment 2 and comparative example by carrying out tensile strength, surrender after extrusion casint by force The test of degree, elongation percentage, hardness.Specific data are as shown in table 1.
Table 1
The extrusion casint aluminium alloy tension that the present embodiment 1 and embodiment 2 are prepared it can be seen from the data of table 1 is strong Spend > 300MPa, yield strength > 200MPa, elongation percentage > 1.8%, hardness > 80HB.Tensile strength, yield strength and extension The data of rate are all higher than the data of ADC12 alloys, and hardness is suitable with the hardness of ADC12 alloys.And the extrusion casint of the present invention Aluminium alloy can meet heavy wall pipe shaping thin wall at the same time, and alternative ADC12 alloys use.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the scope of the invention, every utilization The equivalent structure or equivalent flow shift that present specification is made, is directly or indirectly used in other relevant technologies Field, is included within the scope of the present invention.

Claims (10)

  1. A kind of 1. extrusion casint aluminum alloy materials, it is characterised in that in addition to aluminum, by weight, including following component:Silicon is 8%-12%;Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, and zinc is < 0.35%.
  2. 2. extrusion casint aluminum alloy materials as claimed in claim 1, it is characterised in that further include lead as≤0.1%.
  3. 3. extrusion casint aluminum alloy materials as claimed in claim 1, it is characterised in that further include tin as≤0.01%.
  4. 4. extrusion casint aluminum alloy materials as claimed in claim 1, it is characterised in that further include cadmium as≤0.01%.
  5. 5. a kind of extrusion casint aluminum alloy materials, it is characterised in that by weight, include following component:Silicon is 8%-12%; Iron is < 0.9%;Copper is 1-4%;Manganese is 0.2%-0.8%;Magnesium is 0.3%-0.8%, and zinc is < 0.35%,;Tin for≤ 0.01%, cadmium is≤0.01%;Other impurities total amount and no more than 0.3%;Surplus is aluminium.
  6. 6. extrusion casint aluminum alloy materials as claimed in claim 5, it is characterised in that the iron is 0.15%-0.9%.
  7. 7. extrusion casint aluminum alloy materials as claimed in claim 5, it is characterised in that the zinc is 0.05%-0.35%.
  8. 8. extrusion casint aluminum alloy materials as claimed in claim 5, it is characterised in that by weight, silicon 10%- 12%;Iron is 0.1%-0.5%;Copper is 2%-3%;Manganese is 0.4%-0.8%;Magnesium is 0.4%-0.8%, zinc 0.05- 0.35%.
  9. 9. extrusion casint aluminum alloy materials as claimed in claim 8, it is characterised in that by weight, silicon 10%- 11.5%;Iron is 0.1%-0.3%;Copper is 2%-2.9%;Manganese is 0.4%-0.6%;Magnesium is 0.4%-0.6%, and zinc is 0.05-0.1%.
  10. 10. the preparation method of extrusion casint aluminum alloy materials as claimed in claim 5, it is characterised in that include the following steps:
    (1) aluminium ingot and silicon are put into smelting furnace, heating makes it be molten into molten metal;
    (2) treat that molten metal temperature reaches 800 DEG C -880 DEG C, add manganese additive, ferro element additive and copper and add Add agent;
    (3) molten metal is cooled to 760-780 DEG C;
    (4) add refining agent and carry out refining purification, slagging-off;
    (5) add magnesium and make its fusing, then add a small amount of antimony element additive and go bad, obtain molten aluminum;
    (6) by temperature of aluminum liquid in 740-760 DEG C of scope cast aluminum alloys ingot.
CN201711366311.XA 2017-12-18 2017-12-18 Extrusion casting aluminum alloy material and preparation method thereof Active CN107937768B (en)

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CN108396205A (en) * 2018-04-28 2018-08-14 广州致远新材料科技有限公司 A kind of aluminum alloy materials and preparation method thereof
CN112391562A (en) * 2019-11-26 2021-02-23 比亚迪股份有限公司 Aluminum alloy and preparation method thereof
CN113444925A (en) * 2020-03-24 2021-09-28 比亚迪股份有限公司 Aluminum alloy and preparation method thereof
WO2024099374A1 (en) * 2022-11-11 2024-05-16 蔚来动力科技(合肥)有限公司 Die-cast aluminum alloy material, preparation method therefor, and use thereof

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN108396205A (en) * 2018-04-28 2018-08-14 广州致远新材料科技有限公司 A kind of aluminum alloy materials and preparation method thereof
CN112391562A (en) * 2019-11-26 2021-02-23 比亚迪股份有限公司 Aluminum alloy and preparation method thereof
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CN113444925A (en) * 2020-03-24 2021-09-28 比亚迪股份有限公司 Aluminum alloy and preparation method thereof
CN113444925B (en) * 2020-03-24 2022-11-11 比亚迪股份有限公司 Aluminum alloy and preparation method thereof
WO2024099374A1 (en) * 2022-11-11 2024-05-16 蔚来动力科技(合肥)有限公司 Die-cast aluminum alloy material, preparation method therefor, and use thereof

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