CN115305419A - Corrosion-resistant aluminum alloy material and processing technology thereof - Google Patents
Corrosion-resistant aluminum alloy material and processing technology thereof Download PDFInfo
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- CN115305419A CN115305419A CN202210907186.3A CN202210907186A CN115305419A CN 115305419 A CN115305419 A CN 115305419A CN 202210907186 A CN202210907186 A CN 202210907186A CN 115305419 A CN115305419 A CN 115305419A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 68
- 239000000956 alloy Substances 0.000 title claims abstract description 52
- 238000005260 corrosion Methods 0.000 title claims abstract description 52
- 230000007797 corrosion Effects 0.000 title claims abstract description 52
- 238000005516 engineering process Methods 0.000 title claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 72
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 39
- 239000004917 carbon fiber Substances 0.000 claims abstract description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 36
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000003647 oxidation Effects 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 16
- 239000011777 magnesium Substances 0.000 claims abstract description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 239000011651 chromium Substances 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- 239000011701 zinc Substances 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 33
- 238000003723 Smelting Methods 0.000 claims description 30
- 239000011265 semifinished product Substances 0.000 claims description 27
- 238000005266 casting Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000011812 mixed powder Substances 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 230000000171 quenching effect Effects 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000053 physical method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000007743 anodising Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 12
- 239000010408 film Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 159000000021 acetate salts Chemical class 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
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Abstract
The invention discloses a corrosion-resistant aluminum alloy material which comprises the following components in percentage by mass: 51.45-72.35 wt% of aluminum, 20-22 wt% of silicon, 1.35-15.75 wt% of auxiliary materials and 6.3-10.8 wt% of additives, wherein the auxiliary materials are one or more of iron, copper, manganese, magnesium, chromium, zinc and titanium, and the auxiliary materials comprise the following components in percentage by mass: 0.15 to 0.7 weight percent of iron, 0.1 to 4.9 weight percent of copper, 0.1 to 1.0 weight percent of manganese and 0.8 to 4.9 weight percent of magnesium. According to the invention, the raw material ratio is adjusted when the aluminum alloy material is prepared, and the nickel and the carbon fiber are added into the raw materials to prepare the aluminum alloy containing the nickel and the carbon fiber in the finished product, so that the corrosion resistance of the aluminum alloy is obviously improved, the extruded aluminum alloy material is subjected to anodic oxidation through surface pretreatment, a compact aluminum oxide film is formed on the surface, the corrosion resistance of the surface is further improved, the aluminum oxide film is damaged when the aluminum alloy material is used, the internal aluminum alloy material has good corrosion resistance, and the risk that the internal material is corroded is eliminated.
Description
Technical Field
The invention belongs to the technical field of aluminum alloy materials, and particularly relates to a corrosion-resistant aluminum alloy material and a processing technology thereof.
Background
The aluminum alloy is an alloy which is based on aluminum and added with a certain amount of other alloying elements, and is one of light metal materials. In addition to the general characteristics of aluminum, aluminum alloys have certain alloy specific characteristics due to the variety and amount of alloying elements added. The density of the aluminum alloy is 2.63-2.85g/cm 3 The high-strength alloy steel has high strength (110-605 MPa), specific strength close to that of high-alloy steel, specific rigidity higher than that of steel, good casting performance and plastic processing performance, good electric conductivity and heat conductivity, and good weldability, can be used as a structural material, and can be widely applied to aerospace, aviation, transportation, construction, electromechanics, lightening and daily necessities.
The aluminum alloy has poor corrosion resistance to aqueous solutions of acid, alkali and salt, uniform corrosion occurs in acid and alkali, and when the aluminum alloy material is used in a special environment, the aluminum alloy material has high corrosion resistance.
Therefore, in order to solve the above technical problems, it is necessary to provide a corrosion-resistant aluminum alloy material and a processing method thereof.
Disclosure of Invention
The invention aims to provide a corrosion-resistant aluminum alloy material and a processing technology thereof, and aims to solve the problems.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
the corrosion-resistant aluminum alloy material comprises the following components in percentage by mass:
as a further improvement of the invention, the auxiliary material is one or a combination of more of iron, copper, manganese, magnesium, chromium, zinc and titanium.
As a further improvement of the invention, the auxiliary materials are composed of iron, copper, manganese, magnesium, chromium, zinc and titanium.
As a further improvement of the invention, the auxiliary materials comprise the following components in percentage by mass:
as a further development of the invention, the additive comprises nickel and carbon fibers.
As a further improvement of the invention, the additive comprises the following components in percentage by mass:
2.8 to 5.5 weight percent of nickel
3.5wt% -5.53 wt% of carbon fiber.
A processing technology of a corrosion-resistant aluminum alloy material comprises the following steps:
s1, preparing materials:
weighing nickel and carbon fiber with corresponding mass according to the mass percentage of the additive nickel and the carbon fiber, adding the weighed nickel and carbon fiber into grinding equipment for grinding to obtain powder which is uniformly mixed and has fine particle size, weighing aluminum and silicon with corresponding mass percentage, adding the weighed aluminum and silicon into a stirrer for mixing, adding the powder ground in the grinder into the stirrer for mixing, and finally adding auxiliary materials with corresponding proportion into the stirrer for mixing to obtain first powder;
s2, smelting:
adding the first powder obtained in the step S1 into a smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in a solution by means of degassing, deslagging and refining to obtain a mixed solution;
s3, casting:
cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition;
s4, extruding:
extruding and forming the cylindrical rod in the step S3 through a corresponding die by using a product to be produced to obtain a first semi-finished product;
s5, strengthening treatment:
carrying out air cooling quenching on the first semi-finished product in the step S4, and then carrying out heat treatment strengthening to obtain a second semi-finished product;
s6, surface treatment:
and carrying out anodic oxidation treatment on the surface of the second semi-finished product to obtain a finished product of the aluminum alloy material.
As a further improvement of the invention, when the first powder is smelted in S2, argon gas needs to be introduced into the whole smelting furnace to protect the mixed liquid formed by smelting.
As a further improvement of the invention, the oxidation process in S6 comprises the following sub-steps:
s61, surface pretreatment:
cleaning the surface of the second semi-finished product by a chemical and physical method to expose a pure matrix to obtain a first matrix;
s62, anodic oxidation:
transferring the first substrate in the step S61 into an anodic oxidation reaction device to enable the surface of the first substrate to be subjected to anodic oxidation, and generating a second substrate with an aluminum oxide film;
s63, hole sealing:
and closing the film hole gap of the second substrate.
As a further improvement of the present invention, the process of anodizing in S62 includes placing the first substrate in an electrified electrolyte solution for 5 to 10 minutes to form a second substrate having an alumina thin film.
Compared with the prior art, the invention has the following advantages:
according to the invention, the raw material ratio is adjusted when the aluminum alloy material is prepared, and the nickel and the carbon fiber are added into the raw materials to prepare the aluminum alloy containing the nickel and the carbon fiber in the finished product, so that the corrosion resistance of the aluminum alloy is obviously improved, the extruded aluminum alloy material is subjected to anodic oxidation through surface pretreatment, a compact aluminum oxide film is formed on the surface, the corrosion resistance of the surface is further improved, the aluminum oxide film is damaged when the aluminum alloy material is used, the internal aluminum alloy material has good corrosion resistance, and the risk that the internal material is corroded is eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a component proportion diagram of a corrosion-resistant aluminum alloy material in one embodiment of the invention;
FIG. 2 is a comparative table of corrosion resistance.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
The embodiment of the invention discloses a corrosion-resistant aluminum alloy material which comprises the following components in percentage by mass:
preferably, the auxiliary material is one or a combination of more of iron, copper, manganese, magnesium, chromium, zinc and titanium, and the auxiliary material of the corrosion-resistant aluminum alloy material consists of iron, copper, manganese, magnesium, chromium, zinc and titanium.
Specifically, the auxiliary materials comprise the following components in percentage by mass:
preferably, the additive comprises nickel and carbon fiber, and the additive comprises the following components in percentage by mass:
2.8 to 5.5 weight percent of nickel
3.5wt% -5.53 wt% of carbon fiber.
Wherein, nickel is a hard and ductile ferromagnetic metal with strong corrosion resistance; the carbon fiber has the characteristics of high temperature resistance, friction resistance, heat conduction, corrosion resistance and the like, and particularly has strong internal corrosion performance. The nickel and the carbon fiber thereof are added into the original aluminum alloy ingredients to prepare the aluminum alloy containing the nickel and the carbon fiber, so that the corrosion resistance of the aluminum alloy can be improved.
A processing technology of a corrosion-resistant aluminum alloy material comprises the following steps:
s1, preparing materials:
weighing nickel and carbon fiber with corresponding mass according to the mass percentage of the additive nickel and the carbon fiber, adding the weighed nickel and carbon fiber into grinding equipment for grinding to obtain powder which is uniformly mixed and has fine particle size, weighing aluminum and silicon with corresponding mass percentage, adding the weighed aluminum and silicon into a stirrer for mixing, adding the powder ground in the grinder into the stirrer for mixing, and finally adding auxiliary materials with corresponding proportion into the stirrer for mixing to obtain first powder;
s2, smelting:
adding the first powder obtained in the step S1 into a smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in a solution by means of degassing, deslagging and refining to obtain a mixed solution;
s3, casting:
cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition;
s4, extruding:
extruding and forming the cylindrical rod in the step S3 through a corresponding die by using a product to be produced to obtain a first semi-finished product;
s5, strengthening treatment:
carrying out air cooling quenching on the first semi-finished product in the step S4, and then carrying out qualitative heat treatment strengthening to obtain a second semi-finished product;
s6, surface treatment:
and carrying out anodic oxidation treatment on the surface of the second semi-finished product to obtain a finished product of the aluminum alloy material.
Specifically, when the first powder is smelted in the step S2, argon gas needs to be introduced into the smelting furnace in the whole process to protect the mixed liquid formed by smelting, because the carbon fiber can generate mass loss at the high temperature of 400 ℃, the smelting operation of the aluminum alloy is carried out at the temperature of 800-1000 ℃, and in order to prevent the high temperature from damaging the performance of the carbon fiber, inert gas is introduced into the smelting furnace in the whole process during smelting to protect the performance of the carbon fiber.
Specifically, the oxidation process in S6 includes the following sub-steps:
s61, surface pretreatment:
cleaning the surface of the second semi-finished product by a chemical and physical method to expose a pure matrix to obtain a first matrix; the treated substrate may be more conducive to anodization, resulting in optimal anodization performance.
S62, anodic oxidation:
transferring the first substrate in the step S61 into an anodic oxidation reaction device to enable the surface of the first substrate to be subjected to anodic oxidation, and generating a second substrate with an aluminum oxide film; the process of anodic oxidation includes placing the first substrate in an energized electrolyte solution for 5-10 minutes to produce a second substrate having an aluminum oxide film.
S63, hole sealing:
and closing the film hole gap of the second substrate. The oxidation film is prevented from being polluted, and the corrosion resistance are enhanced.
Example 1
S1, weighing 2.8wt% of nickel and 3.5wt% of carbon fiber, adding the nickel and the carbon fiber into grinding equipment for grinding to obtain uniformly mixed powder with fine particle size, weighing 72.35wt% of aluminum and 20wt% of silicon, adding the aluminum and the silicon into a stirrer for mixing, adding the ground powder in the grinder into the stirrer for mixing, and adding auxiliary materials which are respectively 0.15wt% of iron, 0.1wt% of copper, 0.1wt% of manganese, 0.8wt% of magnesium, 0.04wt% of chromium, 0.1wt% of zinc and 0.06wt% of titanium into the uniformly mixed powder to obtain first powder.
And S2, adding the first powder obtained in the step S1 into a smelting furnace, introducing argon into the smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in the solution by degassing, deslagging and refining to obtain a mixed solution.
And S3, cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition.
And S4, carrying out extrusion forming on the cylindrical rod in the step S3 through a corresponding die through a product to be produced to obtain a first semi-finished product.
And S5, carrying out air cooling quenching on the first semi-finished product in the S4, and then carrying out qualitative heat treatment strengthening to obtain a second semi-finished product.
Example 2
S1, weighing 3.5wt% of nickel and 4.1wt% of carbon fiber, adding the nickel and the carbon fiber into a grinding device for grinding to obtain uniformly mixed powder with fine particle size, weighing 63.49wt% of aluminum and 20.8wt% of silicon, adding the aluminum and the silicon into a stirrer for mixing, adding the ground powder in the grinder into the stirrer for mixing, and adding auxiliary materials which are respectively 0.2wt% of iron, 1.8wt% of copper, 0.3wt% of manganese, 3.2wt% of magnesium, 0.15wt% of chromium, 2.3wt% of zinc and 0.16wt% of titanium into the uniformly mixed powder to obtain first powder.
And S2, adding the first powder obtained in the step S1 into a smelting furnace, introducing argon into the smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in the solution by degassing, deslagging and refining to obtain a mixed solution.
And S3, cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition.
And S4, carrying out extrusion forming on the cylindrical rod in the step S3 through a corresponding die through a product to be produced to obtain a first semi-finished product.
And S5, carrying out air cooling quenching on the first semi-finished product in the S4, and then carrying out qualitative heat treatment strengthening to obtain a second semi-finished product.
Example 3
S1, weighing 4.5wt% of nickel and 4.8wt% of carbon fiber, adding the nickel and the carbon fiber into a grinding device for grinding to obtain uniformly mixed powder with fine particle size, weighing 59.79wt% of aluminum and 21.6wt% of silicon, adding the mixture into a stirrer for mixing, adding the ground powder in the grinder into the stirrer for mixing, and adding auxiliary materials which are respectively 0.7wt% of iron, 4.9wt% of copper, 0.5wt% of manganese, 1.5wt% of magnesium, 0.1wt% of chromium, 1.5wt% of zinc and 0.11wt% of titanium into the uniformly mixed powder to obtain first powder.
And S2, adding the first powder obtained in the step S1 into a smelting furnace, introducing argon into the smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in the solution by degassing, deslagging and refining to obtain a mixed solution.
And S3, cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition.
And S4, carrying out extrusion forming on the cylindrical rod in the step S3 through a corresponding die through a product to be produced to obtain a first semi-finished product.
And S5, carrying out air cooling quenching on the first semi-finished product in the S4, and then carrying out temporary heat treatment strengthening to obtain a second semi-finished product.
Example 4
S1, weighing 5.5wt% of nickel and 5.3wt% of carbon fiber, adding the nickel and the carbon fiber into a grinding device for grinding to obtain uniformly mixed powder with fine particle size, weighing 51.45wt% of aluminum and 22wt% of silicon, adding the aluminum and the silicon into a stirrer for mixing, adding the ground powder in the grinder into the stirrer for mixing, and adding auxiliary materials which are respectively 0.7wt% of iron, 4.9wt% of copper, 1.0wt% of manganese, 4.9wt% of magnesium, 0.35wt% of chromium, 3.7wt% of zinc and 0.2wt% of titanium into the uniformly mixed powder to obtain first powder.
And S2, adding the first powder obtained in the S1 into a smelting furnace, introducing argon into the smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in the solution by degassing, deslagging and refining to obtain a mixed solution.
And S3, cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition.
And S4, carrying out extrusion forming on the cylindrical rod in the step S3 through a corresponding die through a product to be produced to obtain a first semi-finished product.
And S5, carrying out air cooling quenching on the first semi-finished product in the S4, and then carrying out temporary heat treatment strengthening to obtain a second semi-finished product.
In summary, referring to fig. 1 and fig. 2, when the aluminum alloy in example 1 is made, the raw material mixture ratio is 72.35wt% of aluminum, 20wt% of silicon, and the auxiliary materials are 0.15wt% of iron, 0.1wt% of copper, 0.1wt% of manganese, 0.8wt% of magnesium, 0.04wt% of chromium, 0.1wt% of zinc, 0.06wt% of titanium, 2.8wt% of nickel as an additive, and 3.5wt% of carbon fiber, and the aluminum alloy material made according to the mixture ratio is subjected to an acetate spray test, so that the corrosion resistance grade of the aluminum alloy material is class II; in the preparation of the aluminum alloy in the embodiment 2, the raw material mixture ratio of aluminum is 63.49wt%, silicon is 20.8wt%, the auxiliary materials are 0.2wt% of iron, 1.8wt% of copper, 0.3wt% of manganese, 3.2wt% of magnesium, 0.15wt% of chromium, 2.3wt% of zinc, 0.16wt% of titanium, 3.5wt% of nickel and 4.1wt% of carbon fiber, and the aluminum alloy material prepared according to the mixture ratio is subjected to an acetate spray test, so that the corrosion resistance grade of the aluminum alloy material is I grade; in the preparation of the aluminum alloy in the embodiment 3, the raw material mixture ratio of aluminum is 59.79wt%, silicon is 21.6wt%, the auxiliary materials are 0.7wt% of iron, 4.9wt% of copper, 0.5wt% of manganese, 1.5wt% of magnesium, 0.1wt% of chromium, 1.5wt% of zinc, 0.11wt% of titanium, 4.5wt% of nickel and 4.8wt% of carbon fiber, and the corrosion resistance grade of the aluminum alloy material prepared according to the mixture ratio is I grade after an acetate spray test; in example 4, when the aluminum alloy is made, the mixture ratio of aluminum is 51.45wt%, silicon is 22wt%, the auxiliary materials are iron 0.7wt%, copper 4.9wt%, manganese 1.0wt%, magnesium 4.9wt%, chromium 0.35wt%, zinc 3.7wt%, titanium 0.2wt%, the additive is nickel 5.5wt%, and carbon fiber 5.3wt%, and the aluminum alloy material made according to the mixture ratio is subjected to an acetate spray test, so that the corrosion resistance grade of the aluminum alloy material is grade I.
It should be noted that the aluminum alloy materials in the examples were subjected to the acetate spray test, and were not subjected to surface treatment, i.e., anodic oxidation treatment, but were tested for corrosion resistance when the material ratio was changed.
The acetate salt spray test (ASS test) is developed on the basis of a neutral salt spray test, glacial acetic acid is added into a 5% sodium chloride solution, the pH value of the solution is reduced to about 3, the solution is changed into acidity, finally formed salt spray is changed from neutral salt spray into acidity, the corrosion of the material can be accelerated by the acetate salt spray test, 72 hours of the acetate salt spray test are equivalent to 9 years in a natural environment, and the corrosion resistance of the aluminum alloy material can be rapidly detected. Fig. 2 shows the classification of the grade of corrosion resistance, wherein the materials corresponding to the I grade and the II grade have strong corrosion resistance, the materials corresponding to the III grade, the IV grade and the V grade have general corrosion resistance, and the materials corresponding to the VI grade and the VII grade have poor corrosion resistance. The aluminum alloy materials manufactured by the processes of the embodiments are respectively subjected to an acetate spray test, no corrosion phenomenon is found in the materials of the embodiments after 72 hours, and the corrosion resistance reaches I grade and II grade.
According to the technical scheme, the invention has the following beneficial effects:
according to the invention, the raw material ratio is adjusted when the aluminum alloy material is prepared, and the nickel and the carbon fiber are added into the raw materials to prepare the aluminum alloy containing the nickel and the carbon fiber in the finished product, so that the corrosion resistance of the aluminum alloy is obviously improved, the extruded aluminum alloy material is subjected to anodic oxidation through surface pretreatment, a compact aluminum oxide film is formed on the surface, the corrosion resistance of the surface is further improved, the aluminum oxide film is damaged when the aluminum alloy material is used, the internal aluminum alloy material has good corrosion resistance, and the risk that the internal material is corroded is eliminated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The corrosion-resistant aluminum alloy material is characterized by comprising the following components in percentage by mass:
2. the corrosion-resistant aluminum alloy material of claim 1, wherein the auxiliary material is one or more of iron, copper, manganese, magnesium, chromium, zinc and titanium.
3. The corrosion-resistant aluminum alloy material of claim 1, wherein the auxiliary material is composed of iron, copper, manganese, magnesium, chromium, zinc and titanium.
4. The corrosion-resistant aluminum alloy material of claim 3, wherein the auxiliary materials comprise the following components in percentage by mass:
5. the corrosion-resistant aluminum alloy material of claim 1, wherein the additive comprises nickel and carbon fiber.
6. The corrosion-resistant aluminum alloy material as claimed in claim 5, wherein the additive component comprises the following components in percentage by mass:
2.8 to 5.5 weight percent of nickel
3.5 to 5.3 weight percent of carbon fiber.
7. The processing technology of the corrosion-resistant aluminum alloy material is characterized by comprising the following steps of:
s1, preparing materials:
weighing nickel and carbon fiber with corresponding mass according to the mass percentage of the additive nickel and the carbon fiber, adding the weighed nickel and carbon fiber into grinding equipment for grinding to obtain uniformly mixed powder, weighing aluminum and silicon with corresponding mass percentage, adding the weighed aluminum and silicon into a stirrer for mixing, adding the powder ground in a grinding machine into the stirrer for mixing, and finally adding auxiliary materials with corresponding proportion into the stirrer for mixing to obtain first powder;
s2, smelting:
adding the first powder obtained in the step S1 into a smelting furnace, melting the first powder in the smelting furnace, and removing impurity slag and gas in a solution by means of degassing, deslagging and refining to obtain a mixed solution;
s3, casting:
cooling and casting the mixed solution in the step S2 into cylindrical rods with various specifications through a deep well casting system under the casting process condition;
s4, extruding:
extruding and forming the cylindrical rod in the step S3 through a corresponding die by using a product to be produced to obtain a first semi-finished product;
s5, strengthening treatment:
carrying out air cooling quenching on the first semi-finished product in the step S4, and then carrying out heat treatment strengthening to obtain a second semi-finished product;
s6, surface treatment:
and carrying out anodic oxidation treatment on the surface of the second semi-finished product to obtain a finished product of the aluminum alloy material.
8. The processing technology of the corrosion-resistant aluminum alloy material according to claim 7, wherein when the first powder is smelted in S2, argon is required to be introduced into the smelting furnace in the whole process to protect the mixed liquid formed by smelting.
9. The processing technology of the corrosion-resistant aluminum alloy material according to claim 7, wherein the oxidation process in S6 comprises the following sub-steps:
s61, surface pretreatment:
cleaning the surface of the second semi-finished product by a chemical and physical method to expose a pure matrix to obtain a first matrix;
s62, anodic oxidation:
transferring the first matrix in the step S61 into an anodic oxidation reaction device, so that the surface of the first matrix is subjected to anodic oxidation, and a second matrix with an alumina film is generated;
s63, hole sealing:
and sealing the film hole gap of the second substrate to obtain the finished product of the aluminum alloy material.
10. The process of claim 9, wherein the anodizing in S62 comprises placing the first substrate in an energized electrolyte solution for 5-10 minutes to form the second substrate having the aluminum oxide film.
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