CN109338173A - A kind of corrosion-resistant pure aluminum material and preparation method thereof - Google Patents
A kind of corrosion-resistant pure aluminum material and preparation method thereof Download PDFInfo
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- CN109338173A CN109338173A CN201811582136.2A CN201811582136A CN109338173A CN 109338173 A CN109338173 A CN 109338173A CN 201811582136 A CN201811582136 A CN 201811582136A CN 109338173 A CN109338173 A CN 109338173A
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- corrosion
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- aluminum material
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of corrosion-resistant pure aluminum materials, are related to aluminium alloy manufacture.The corrosion-resistant pure aluminum material composition is by mass percentage are as follows: silicon 0.02-0.06%, iron 0.07-0.2%, copper 0.001-0.01%, manganese 0.03-0.04%, boron 0.005-0.01%, cerium 0.005-0.01%, surplus are aluminium and inevitable impurity.Corrosion-resistant pure aluminum material provided by the invention has excellent corrosion resistance, stronger mechanical property.
Description
Technical field
The present invention relates to aluminium alloy manufacture, in particular to a kind of corrosion-resistant pure aluminum material.
Background technique
With Chinese Urbanization's and industrialized fast development, Aeronautics and Astronautics, automobile, machine-building, ship and chemical work
The aluminium demand of industry will greatly improve.Electric wire fine aluminium conductor material faces bad mechanical strength, easily occurs as Wire cable core
The technical problems such as electrochemistry and chemical attack easily occur for creep, easily overload fever, for this purpose, there is an urgent need to one kind to have relatively
Good comprehensive mechanical property, good corrosion resistance material.
Rare earth element has the function of improving the part objectionable impurities elements in melt quality, with alloy in aluminium alloy
It is combined into compound and is distributed in grain boundaries, and improve the existing forms of impurity in solid solution, propose aluminum substrate structure property
It rises, to improve the comprehensive mechanical property and corrosion resistance of material.
Summary of the invention
Corrosion-resistant pure aluminum material provided by the invention has excellent corrosion resistance, stronger mechanical property.
A kind of corrosion-resistant pure aluminum material, the pure aluminum material contain following chemical component and mass percent: silicon 0.02-
0.06%, iron 0.07-0.2%, copper 0.001-0.01%, manganese 0.03-0.04%, boron 0.005-0.01%, cerium 0.005-
0.01%, surplus is aluminium and inevitable impurity.
Corrosion-resistant pure aluminum material as described above, wherein preferred, composition is by mass percentage are as follows: silicon 0.02%, iron
0.07%, copper 0.001%, manganese 0.03%, boron 0.005%, cerium 0.005%, surplus are aluminium and inevitable impurity.
Corrosion-resistant pure aluminum material as described above, wherein preferably, composition is by mass percentage are as follows: silicon 0.06%,
Iron 0.2%, copper 0.01%, manganese 0.04%, boron 0.01%, cerium 0.01%, surplus are aluminium and inevitable impurity.
Corrosion-resistant pure aluminum material as described above, wherein preferably, composition is by mass percentage are as follows: silicon 0.04%,
Iron 0.13%, copper 0.006%, manganese 0.035%, boron 0.007%, cerium 0.008%, surplus are aluminium and inevitable impurity.
The present invention uses micro-alloying technology, and rare earth Ce elements and impurity element are added in alloy in aluminum substrate with chemical combination
Object form exists, and to reduce content of the objectionable impurities elements in solid solution, plays the role of purifying solid solution；Pass through material for repairing
Surface layer alumite defect, is improved compactness, reduces corrosion probability；Manganese, boron element formed in conjunction with impurity element compared with
Hard compound, the improvement of useful alloy tissue and the refinement of crystal grain, and improve the comprehensive mechanical property of alloy.
A kind of preparation method of corrosion-resistant pure aluminum material, comprising the following steps: step 1: according to material composition design requirement,
Preparation required remelted aluminum ingot and additive, drying；Step 2: remelted aluminum ingot being melted, completely rear control aluminum melt temperature to be melted
Then degree is kept the temperature at 740-760 DEG C；Alumal is added again, is stood, stirring, is stood again；Step 3: among aluminium boron, aluminium cerium
Alloy is processed into fine particle shape, and mixes with refining agent, passes through high pure nitrogen or argon gas band in online depassing unit
Enter into melt and carry out refinery by de-gassing, then stands, stirs, stands；Step 4: sampling analysis after skimming falls qualified aluminum melt
Enter cooling in mold, obtains corrosion-resistant pure aluminum material.
The preparation method of corrosion-resistant pure aluminum material as described above, wherein preferably, remelted aluminum ingot is completely melt
Afterwards, then control aluminum melt temperature is kept the temperature at 740 DEG C.
The preparation method of corrosion-resistant pure aluminum material as described above, wherein preferably, remelted aluminum ingot is completely melt
Afterwards, then control aluminum melt temperature is kept the temperature at 750 DEG C.
The preparation method of corrosion-resistant pure aluminum material as described above, wherein preferably, remelted aluminum ingot is completely melt
Afterwards, then control aluminum melt temperature is kept the temperature at 760 DEG C.
The preparation method of described in any item corrosion-resistant pure aluminum materials as above, wherein preferably, corrosion-resistant pure aluminum material
Preparation method step 3 in: aluminium boron intermediate alloy, aluminium cerium intermediate alloy are processed into fine particle shape, and with powdery or particle
Shape refining agent mixes, and is brought into melt by high pure nitrogen in online depassing unit or argon gas and carries out degasification essence
Refining, is then allowed to stand, stirs, stands again.
The present invention is mixed by the way that aluminium boron, aluminium cerium intermediate alloy are processed into fine particle shape with refining agent, is led to
The high pure nitrogen or argon gas crossed in online depassing unit, which are brought into melt, carries out refinery by de-gassing, can effectively reduce aluminum melt in furnace
The otherness of alloying component, to improve the quality of aluminum melt.
The tensile strength for the corrosion-resistant fine aluminium ingot casting being prepared by above method is 112-138MPa, resistance to neutral salt spray
Test (NSS) time is 432-480h.
The fine aluminium ingot casting tensile strength for not using the above method to prepare is 67MPa, resistance to neutral salt spray test (NSS) time
There is good corrosion resistance and mechanical property using corrosion-resistant pure aluminum material prepared by the present invention by comparison for 150h.
The beneficial effects of the present invention are: the present invention uses micro-alloying technology and fine particulate intermediate alloy mode, the corrosion resistant prepared
Pure aluminum material has excellent corrosion resistance, preferable mechanical property；Preparation process is rationally effective, helps raising product
Energy.
Specific embodiment
The present invention provides a kind of corrosion-resistant pure aluminum material and preparation method thereof, below with reference to embodiment to the present invention do into
The explanation of one step.
Embodiment 1
A kind of corrosion-resistant pure aluminum material, the pure aluminum material contain following chemical component and mass percent: silicon 0.02%,
Iron 0.07%, copper 0.001%, manganese 0.03%, boron 0.005%, cerium 0.005%, surplus are aluminium and inevitable impurity.
It is prepared as follows corrosion-resistant fine aluminium ingot casting:
Step 1: according to material composition design requirement, preparation required remelted aluminum ingot and additive, drying.
Step 2: remelted aluminum ingot being melted, then completely rear control aluminum melt temperature to be melted is kept the temperature at 740 DEG C；Add again
Add alumal, stands, stirring, stands again.
Step 3: aluminium boron, aluminium cerium intermediate alloy are processed into fine particle shape, and mixed with refining agent, by
High pure nitrogen, which is brought into melt, in line depassing unit carries out refinery by de-gassing, then stands, stirs, stands.
Step 4: qualified aluminum melt is poured into cooling in mold, obtains corrosion-resistant pure aluminum material by sampling analysis after skimming
(ingot casting).
The tensile strength for the corrosion-resistant fine aluminium ingot casting being prepared by above method is 112MPa, resistance to neutral salt spray test
(NSS) time is 432h；The fine aluminium ingot casting tensile strength for not using the above method to prepare is 67MPa, resistance to neutral salt spray test
(NSS) time is 150h.
Embodiment 2
A kind of corrosion-resistant pure aluminum material, the pure aluminum material contain following chemical component and mass percent: silicon 0.06%,
Iron 0.2%, copper 0.01%, manganese 0.04%, boron 0.01%, cerium 0.01%, surplus are aluminium and inevitable impurity.
It is prepared as follows corrosion-resistant fine aluminium ingot casting:
Step 1: according to material composition design requirement, preparation required remelted aluminum ingot and additive, drying.
Step 2: remelted aluminum ingot being melted, then completely rear control aluminum melt temperature to be melted is kept the temperature at 760 DEG C；Add again
Add alumal, stands, stirring, stands again.
Step 3: aluminium boron, aluminium cerium intermediate alloy are processed into fine particle shape, and mixed with refining agent, by
High-purity argon gas, which is brought into melt, in line depassing unit carries out refinery by de-gassing, then stands, stirs, stands.
Step 4: qualified aluminum melt is poured into cooling in mold, obtains corrosion-resistant pure aluminum material by sampling analysis after skimming
(ingot casting).
The tensile strength for the corrosion-resistant fine aluminium ingot casting being prepared by above method is 138MPa, resistance to neutral salt spray test
(NSS) time is 480h；The fine aluminium ingot casting tensile strength for not using the above method to prepare is 67MPa, resistance to neutral salt spray test
(NSS) time is 150h.
Embodiment 3
A kind of corrosion-resistant pure aluminum material, the pure aluminum material contain following chemical component and mass percent: silicon 0.04%,
Iron 0.13%, copper 0.006%, manganese 0.035%, boron 0.007%, cerium 0.008%, surplus are aluminium and inevitable impurity.
It is prepared as follows corrosion-resistant fine aluminium ingot casting:
Step 1: according to material composition design requirement, preparation required remelted aluminum ingot and additive, drying.
Step 2: remelted aluminum ingot being melted, then completely rear control aluminum melt temperature to be melted is kept the temperature at 750 DEG C；Add again
Add alumal, stands, stirring, stands again.
Step 3: aluminium boron, aluminium cerium intermediate alloy are processed into fine particle shape, and mixed with refining agent, by
High pure nitrogen, which is brought into melt, in line depassing unit carries out refinery by de-gassing, then stands, stirs, stands.
Step 4: qualified aluminum melt is poured into cooling in mold, obtains corrosion-resistant pure aluminum material by sampling analysis after skimming
(ingot casting).
The tensile strength for the corrosion-resistant fine aluminium ingot casting being prepared by above method is 125MPa, resistance to neutral salt spray test
(NSS) time is 456h；The fine aluminium ingot casting tensile strength for not using the above method to prepare is 67MPa, resistance to neutral salt spray test
(NSS) time is 150h.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (9)
1. a kind of corrosion-resistant pure aluminum material, it is characterised in that: it is formed by mass percentage are as follows: silicon 0.02-0.06%, iron
0.07-0.2%, copper 0.001-0.01%, manganese 0.03-0.04%, boron 0.005-0.01%, cerium 0.005-0.01%, surplus are
Aluminium and inevitable impurity.
2. corrosion-resistant pure aluminum material according to claim 1, it is characterised in that: it is formed by mass percentage are as follows: silicon
0.02%, iron 0.07%, copper 0.001%, manganese 0.03%, boron 0.005%, cerium 0.005%, surplus are aluminium and inevitable miscellaneous
Matter.
3. corrosion-resistant pure aluminum material according to claim 1, it is characterised in that: it is formed by mass percentage are as follows: silicon
0.06%, iron 0.2%, copper 0.01%, manganese 0.04%, boron 0.01%, cerium 0.01%, surplus are aluminium and inevitable impurity.
4. corrosion-resistant pure aluminum material according to claim 1, it is characterised in that: it is formed by mass percentage are as follows: silicon
0.04%, iron 0.13%, copper 0.006%, manganese 0.035%, boron 0.007%, cerium 0.008%, surplus are aluminium and inevitable miscellaneous
Matter.
5. a kind of preparation method of corrosion-resistant pure aluminum material, it is characterised in that: the following steps are included:
Step 1: according to material composition design requirement, preparation required remelted aluminum ingot and additive, drying；
Step 2: remelted aluminum ingot being melted, then completely rear control aluminum melt temperature to be melted is kept the temperature at 740-760 DEG C；Add again
Add alumal, stands, stirring, stands again；
Step 3: aluminium boron intermediate alloy, aluminium cerium intermediate alloy being mixed into refining agent, it is molten to bring aluminium by high pure nitrogen or argon gas
In vivo, refinery by de-gassing is carried out, is then allowed to stand, is stirred, then stand；
Step 4: qualified aluminum melt is poured into cooling in mold, obtains corrosion-resistant pure aluminum material by sampling analysis after skimming；.
6. the preparation method of corrosion-resistant pure aluminum material according to claim 5, it is characterised in that: remelted aluminum ingot is completely molten
After change, aluminum melt temperature is controlled at 740 DEG C, is then kept the temperature.
7. the preparation method of corrosion-resistant pure aluminum material according to claim 5, it is characterised in that: remelted aluminum ingot is completely molten
After change, aluminum melt temperature is controlled at 750 DEG C, is then kept the temperature.
8. the preparation method of corrosion-resistant pure aluminum material according to claim 5, it is characterised in that: remelted aluminum ingot is completely molten
After change, aluminum melt temperature is controlled at 760 DEG C, is then kept the temperature.
9. according to the preparation method of the described in any item corrosion-resistant pure aluminum materials of claim 5-8, it is characterised in that: corrosion-resistant pure
In the preparation method step 3 of aluminum material: aluminium boron intermediate alloy, aluminium cerium intermediate alloy are processed into fine particle shape, and and powdery
Or graininess refining agent mixes, and is brought into melt and is removed by high pure nitrogen in online depassing unit or argon gas
Gas refining, is then allowed to stand, stirs, stands again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582136.2A CN109338173A (en) | 2018-12-24 | 2018-12-24 | A kind of corrosion-resistant pure aluminum material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582136.2A CN109338173A (en) | 2018-12-24 | 2018-12-24 | A kind of corrosion-resistant pure aluminum material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109338173A true CN109338173A (en) | 2019-02-15 |
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| CN201811582136.2A Pending CN109338173A (en) | 2018-12-24 | 2018-12-24 | A kind of corrosion-resistant pure aluminum material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05195172A (en) * | 1990-12-03 | 1993-08-03 | Aluminum Co Of America <Alcoa> | Preparation of flat article made of aluminum-base alloy |
| CN104299670A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mn aluminum alloy for coal mine cable and aluminum alloy cable |
| CN107058810A (en) * | 2015-05-13 | 2017-08-18 | 江苏亨通电力特种导线有限公司 | Corrosion-resistant low-resistivity aluminium bar |
| CN108642347A (en) * | 2018-04-17 | 2018-10-12 | 天长市正牧铝业科技有限公司 | A kind of shock resistance corrosion resistant aluminum alloy softball bar material and preparation method thereof |
-
2018
- 2018-12-24 CN CN201811582136.2A patent/CN109338173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05195172A (en) * | 1990-12-03 | 1993-08-03 | Aluminum Co Of America <Alcoa> | Preparation of flat article made of aluminum-base alloy |
| CN104299670A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mn aluminum alloy for coal mine cable and aluminum alloy cable |
| CN107058810A (en) * | 2015-05-13 | 2017-08-18 | 江苏亨通电力特种导线有限公司 | Corrosion-resistant low-resistivity aluminium bar |
| CN108642347A (en) * | 2018-04-17 | 2018-10-12 | 天长市正牧铝业科技有限公司 | A kind of shock resistance corrosion resistant aluminum alloy softball bar material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘东雨等: "杂质元素和微合金化元素对纯铝导体导电性能的影响", 《热处理技术与装备》 * |
| 官可湘等: "稀土Ce对工业纯铝中富Fe相的球化作用", 《特种铸造机有色合金》 * |
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