CN109536793A - A kind of alkaline-resisting antioxidation aluminium profile - Google Patents
A kind of alkaline-resisting antioxidation aluminium profile Download PDFInfo
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- CN109536793A CN109536793A CN201811389758.3A CN201811389758A CN109536793A CN 109536793 A CN109536793 A CN 109536793A CN 201811389758 A CN201811389758 A CN 201811389758A CN 109536793 A CN109536793 A CN 109536793A
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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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
- C25D11/024—Anodisation under pulsed or modulated current or potential
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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
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
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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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
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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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
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Abstract
The invention discloses a kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component is as follows: Si:0.6-0.7%, Fe:0.1-0.2%, Cu:0.06-0.08%, Mn:0.15-0.25%, Mg:0.9-1.1%, Cr:0.1-0.15%, Zn:0.04-0.06%, Ti:0.1-0.15%, B:0.08-0.1%, Nb:0.05-0.07%, Ce:0.03-0.05%, surplus Al.Good mechanical property of the present invention, corrosion-resistant and antioxygenic property are good.
Description
Technical field
The present invention relates to aluminum profile technical field more particularly to a kind of alkaline-resisting antioxidation aluminium profiles.
Background technique
Due to the physical and chemical performance that aluminium and aluminium alloy itself are excellent, aluminium and aluminium alloy are in building materials, aerospace, automobile, mobile phone
Also become more and more extensive Deng the application in industry.Aluminium will form a thin layer of natural oxide film in air, this layer is certainly
The oxidation film so generated is not able to satisfy the needs of practical application there is no the performances such as anticorrosive well.It is industrial at present usual
Using alumilite process technique, aluminium material surface is set to generate electrochemical oxidation film, to increase its corrosion resistance.But anodic oxidation
Chromic acid, chromate can be often used, it is harmful to human body and environment.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of alkaline-resisting antioxidation aluminium profile, machines of the present invention
Tool performance is good, and corrosion-resistant and antioxygenic property is good.
A kind of alkaline-resisting antioxidation aluminium profile proposed by the present invention, the weight percent of each component are as follows: Si:0.6-
0.7%, Fe:0.1-0.2%, Cu:0.06-0.08%, Mn:0.15-0.25%, Mg:0.9-1.1%, Cr:0.1-0.15%,
Zn:0.04-0.06%, Ti:0.1-0.15%, B:0.08-0.1%, Nb:0.05-0.07%, Ce:0.03-0.05%, surplus
For Al.
Preferably, the weight percent of each component is as follows: Si:0.62-0.68%, Fe:0.13-0.17%, Cu:
0.065-0.075%, Mn:0.17-0.23%, Mg:0.95-1.05%, Cr:0.11-0.13%, Zn:0.045-0.055%,
Ti:0.12-0.14%, B:0.085-0.095%, Nb:0.055-0.065%, Ce:0.035-0.045%, surplus Al.
Preferably, the step of aluminum profile is through anodized, anodized are as follows: take aluminum profile to pre-process,
It aoxidizes, washes, a sealing of hole in anodic oxidation solution, washing, secondary hole sealing is washed, dries to obtain alkaline-resisting anti-oxidant aluminium profiles
Material.
The above-mentioned pretreated step of anodic oxidation is degreasing, washing, polishing, striping, washing, ash disposal.
Preferably, anodic oxidation solution is sulfuric acid, phosphoric acid, boric acid and cerous nitrate mixed aqueous solution.
Preferably, in anodic oxidation solution, the mass fraction of sulfuric acid is 8-9wt%, and the mass fraction of phosphoric acid is 1.6-
2wt%, the mass fraction of boric acid are 4-4.5wt%, and the concentration of cerous nitrate is 0.2-0.4g/ml.
Preferably, the voltage of anodic oxidation is 14-16V, and time 25-30min, temperature is 33-35 DEG C.
Preferably, a hole sealing solution is cerous nitrate and glycerine mixed aqueous solution.
Preferably, in a hole sealing solution, the concentration of cerous nitrate is 5-6g/l, and the concentration of glycerine is 3-4g/l.
Preferably, the pulse voltage of a sealing of hole is 0.8-1V, and pulse frequency 60-80Hz, positive and negative work ratio is 1:1,
Temperature is 20-25 DEG C, off-period 20-25min.
Preferably, secondary hole sealing solution is the mixed solution of methanol, tetramethoxy-silicane and water, pH=5-5.5.
Preferably, in secondary hole sealing solution, with second acid for adjusting pH, methanol, tetramethoxy-silicane and water volume ratio are 8-9:
1-1.2:1-2.
Preferably, the temperature of secondary hole sealing is 80-90 DEG C, time 35-40min.
Above-mentioned water is deionized water.
By adjusting the content of Si, Cu, Mg, Mn, Ti, Zn, each element cooperates the present invention, and is formed with Al a variety of strong
Change phase, and hardening constituent can also be formed between each element, adjusts the internal structure of aluminium alloy, increase the mechanical performance of aluminium alloy；It is logical
The content for crossing adjustment Cr, Ti, B, Nb, Ce cooperates with other each elements, adjusts the internal structure of aluminium alloy, is keeping this
While invention mechanical performance, increase corrosion resistance and antioxygenic property of the invention；Fe element is adjusted in Optimum Contents, is subtracted
The adverse effect of small Fe, and increase machining property of the invention；Made by above-mentioned each element with proper ratio mutual cooperation
Of the invention must have suitable mechanical performance, corrosion-resistant and antioxygenic property, then further increase the present invention through anodic oxidation
Corrosion-resistant, antioxygenic property；Select sulfuric acid, phosphoric acid, boric acid mixed solution be used as anodic oxidation solution, using cerous nitrate as delay
Agent is lost, cooperates suitable oxidizing condition, so that anode oxide film is uniformly grown in aluminum alloy surface, and anode oxide film is not easy
It cracks, and to greatly increase corrosion-resistant and antioxygenic property of the invention, and can be kept away with aluminium alloy tight bond
Exempt to avoid pollution environment using chromium reagent；Divide 2 sealing of holes, so that oxidation film is finer and close, uniform, increases corrosion-resistant and anti-oxidant
Performance；It selects cerous nitrate and glycerine mixed aqueous solution as a hole sealing solution, and suitable pulse voltage is cooperated to deposit envelope
Hole condition increases corrosion resistance, and provide preparation for secondary hole sealing, facilitates secondary hole sealing so that film layer is smooth after sealing of hole；
The mixed solution of methanol, tetramethoxy-silicane and water is as secondary hole sealing solution, and cooperating is suitable for sealing of hole condition, so that organic matter
Oxide-film micropore is blocked, increases corrosion resistance, and when oxidation film is cracked, soap can be generated in organic matter and oxidation film
Class compound crams crackle isolation corrosive medium invasion, to further increase corrosion-resistant, antioxygenic property of the invention；This hair
It is bright to be cooperated by above-mentioned each element with proper ratio and be equipped with suitable anode oxidation process, so that the present invention has well
Mechanical performance, corrosion-resistant and antioxygenic property, and anode oxidation process does not use chromium reagent, protects environment, reduces nothing
Pollution.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component are as follows: Si:0.65%, Fe:0.15%, Cu:
0.07%, Mn:0.2%, Mg:1%, Cr:0.12%, Zn:0.05%, Ti:0.13%, B:0.09%, Nb:0.06%, Ce:
0.04%, surplus Al.
Embodiment 2
A kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component are as follows: Si:0.6%, Fe:0.2%, Cu:
0.06%, Mn:0.25%, Mg:0.9%, Cr:0.15%, Zn:0.04%, Ti:0.15%, B:0.08%, Nb:0.07%,
Ce:0.03%, surplus Al；
The aluminum profile is through anodized, the step of anodized are as follows: takes aluminum profile to pre-process, in anodic oxygen
Change and aoxidized in solution, washed, a sealing of hole, washing, secondary hole sealing is washed, dries to obtain alkaline-resisting antioxidation aluminium profile, wherein
Anodic oxidation solution is sulfuric acid, phosphoric acid, boric acid and cerous nitrate mixed aqueous solution, and a hole sealing solution is that cerous nitrate and glycerine are mixed
Heshui solution, secondary hole sealing solution are the mixed solution of methanol, tetramethoxy-silicane and water, pH=5.25.
Embodiment 3
A kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component are as follows: Si:0.7%, Fe:0.1%, Cu:
0.08%, Mn:0.15%, Mg:1.1%, Cr:0.1%, Zn:0.06%, Ti:0.1%, B:0.1%, Nb:0.05%, Ce:
0.05%, surplus Al；
The aluminum profile is through anodized, the step of anodized are as follows: takes aluminum profile to pre-process, in anodic oxygen
Change and aoxidized in solution, washed, a sealing of hole, washing, secondary hole sealing is washed, dries to obtain alkaline-resisting antioxidation aluminium profile, wherein
Anodic oxidation solution be mass fraction be 8wt% sulfuric acid, mass fraction is 2wt% phosphoric acid, mass fraction is 4wt% boric acid and dense
Degree is the mixed aqueous solution of 0.4g/ml cerous nitrate, and the voltage of anodic oxidation is 14V, and time 30min, temperature is 33 DEG C；Once
Hole sealing solution is that concentration is 6g/l cerous nitrate and concentration is the mixed aqueous solution of 3g/l glycerine, and the pulse voltage of a sealing of hole is
1V, pulse frequency 60Hz, positive and negative work ratio are 1:1, and temperature is 25 DEG C, off-period 20min；Secondary hole sealing solution is first
The mixed solution of alcohol, tetramethoxy-silicane and water adjusts pH=5.5 with acetic acid, and methanol, tetramethoxy-silicane and water volume ratio are
8:1.2:1, the temperature of secondary hole sealing are 90 DEG C, time 35min.
Embodiment 4
A kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component are as follows: Si:0.62%, Fe:0.17%, Cu:
0.065%, Mn:0.23%, Mg:0.95%, Cr:0.13%, Zn:0.045%, Ti:0.14%, B:0.085%, Nb:
0.065%, Ce:0.035%, surplus Al；
The aluminum profile is through anodized, the step of anodized are as follows: takes aluminum profile to pre-process, in anodic oxygen
Change and aoxidized in solution, washed, a sealing of hole, washing, secondary hole sealing is washed, dries to obtain alkaline-resisting antioxidation aluminium profile, wherein
Anodic oxidation solution be mass fraction be 9wt% sulfuric acid, mass fraction is 1.6wt% phosphoric acid, mass fraction is 4.5wt% boric acid
It is the mixed aqueous solution of 0.2g/ml cerous nitrate with concentration, the voltage of anodic oxidation is 16V, and time 25min, temperature is 35 DEG C；
Hole sealing solution is that concentration is 5g/l cerous nitrate and concentration is the mixed aqueous solution of 4g/l glycerine, the pulse electricity of a sealing of hole
Pressure is 0.8V, and pulse frequency 80Hz, positive and negative work ratio is 1:1, and temperature is 20 DEG C, off-period 25min；Secondary hole sealing is molten
Liquid is the mixed solution of methanol, tetramethoxy-silicane and water, adjusts pH=5, methanol, tetramethoxy-silicane and water volume with acetic acid
Than being 80 DEG C for the temperature of 9:1:2, secondary hole sealing, time 40min.
Embodiment 5
A kind of alkaline-resisting antioxidation aluminium profile, the weight percent of each component are as follows: Si:0.68%, Fe:0.13%, Cu:
0.075%, Mn:0.17%, Mg:1.05%, Cr:0.11%, Zn:0.055%, Ti:0.12%, B:0.095%, Nb:
0.055%, Ce:0.045%, surplus Al；
The aluminum profile is through anodized, the step of anodized are as follows: takes aluminum profile to pre-process, in anodic oxygen
Change and aoxidized in solution, washed, a sealing of hole, washing, secondary hole sealing is washed, dries to obtain alkaline-resisting antioxidation aluminium profile, wherein
Anodic oxidation solution be mass fraction be 8.5wt% sulfuric acid, mass fraction is 1.8wt% phosphoric acid, mass fraction is 4.2wt% boron
Acid and concentration are the mixed aqueous solution of 0.3g/ml cerous nitrate, and the voltage of anodic oxidation is 15V, time 27min, temperature 34
℃；Hole sealing solution is that concentration is 5.5g/l cerous nitrate and concentration is the mixed aqueous solution of 3.5g/l glycerine, a sealing of hole
Pulse voltage be 0.9V, pulse frequency 70Hz, positive and negative work ratio be 1:1, temperature be 22 DEG C, off-period 22min；Two
Secondary hole sealing solution is the mixed solution of methanol, tetramethoxy-silicane and water, adjusts pH=5.2, methanol, tetramethoxy-silicane with acetic acid
Alkane and water volume ratio are 8.5:1.1:1.5, and the temperature of secondary hole sealing is 85 DEG C, time 37min.
Reference examples 1: commercially available 6061 aluminum alloy plate materials, the weight percent of each component are as follows: Si:0.5%, Fe:
0.7%, Cu:0.2%, Mn:0.14%, Mg:1.2%, Cr:0.2%, Zn:0.25%, Ti:0.14%, surplus Al.
Reference examples 2: aluminum profile formula such as embodiment 5 does not make anodized.
Performance detection is carried out to embodiment 5, reference examples 1, reference examples 2, as a result as follows:
The present invention has good corrosion resistance, inoxidizability, mechanical performance as can be seen from the above table.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of alkaline-resisting antioxidation aluminium profile, which is characterized in that the weight percent of its each component is as follows: Si:0.6-0.7%,
Fe:0.1-0.2%, Cu:0.06-0.08%, Mn:0.15-0.25%, Mg:0.9-1.1%, Cr:0.1-0.15%, Zn:
0.04-0.06%, Ti:0.1-0.15%, B:0.08-0.1%, Nb:0.05-0.07%, Ce:0.03-0.05%, surplus are
Al。
2. alkaline-resisting antioxidation aluminium profile according to claim 1, which is characterized in that the weight percent of its each component is as follows:
Si:0.62-0.68%, Fe:0.13-0.17%, Cu:0.065-0.075%, Mn:0.17-0.23%, Mg:0.95-1.05%,
Cr:0.11-0.13%, Zn:0.045-0.055%, Ti:0.12-0.14%, B:0.085-0.095%, Nb:0.055-
0.065%, Ce:0.035-0.045%, surplus Al.
3. alkaline-resisting antioxidation aluminium profile according to claim 1 or claim 2, which is characterized in that the aluminum profile through anodic oxidation at
The step of reason, anodized are as follows: take aluminum profile to pre-process, aoxidized in anodic oxidation solution, washed, a sealing of hole, water
It washes, secondary hole sealing, washes, dry to obtain alkaline-resisting antioxidation aluminium profile.
4. alkaline-resisting antioxidation aluminium profile according to claim 3, which is characterized in that anodic oxidation solution is sulfuric acid, phosphoric acid, boron
Acid and cerous nitrate mixed aqueous solution.
5. alkaline-resisting antioxidation aluminium profile according to claim 4, which is characterized in that in anodic oxidation solution, the quality of sulfuric acid
Score is 8-9wt%, and the mass fraction of phosphoric acid is 1.6-2wt%, and the mass fraction of boric acid is 4-4.5wt%, cerous nitrate it is dense
Degree is 0.2-0.4g/ml.
6. according to any one of the claim 3-5 alkaline-resisting antioxidation aluminium profile, which is characterized in that the voltage of anodic oxidation is
14-16V, time 25-30min, temperature are 33-35 DEG C.
7. according to any one of the claim 3-6 alkaline-resisting antioxidation aluminium profile, which is characterized in that a hole sealing solution is nitric acid
Cerium and glycerine mixed aqueous solution.
8. alkaline-resisting antioxidation aluminium profile according to claim 7, which is characterized in that in a hole sealing solution, cerous nitrate it is dense
Degree is 5-6g/l, and the concentration of glycerine is 3-4g/l.
9. according to any one of the claim 3-8 alkaline-resisting antioxidation aluminium profile, which is characterized in that the pulse voltage of a sealing of hole
For 0.8-1V, pulse frequency 60-80Hz, positive and negative work ratio is 1:1, and temperature is 20-25 DEG C, off-period 20-25min.
10. according to any one of the claim 3-9 alkaline-resisting antioxidation aluminium profile, which is characterized in that secondary hole sealing solution is first
The mixed solution of alcohol, tetramethoxy-silicane and water, pH=5-5.5；Preferably, in secondary hole sealing solution, with second acid for adjusting pH,
Methanol, tetramethoxy-silicane and water volume ratio are 8-9:1-1.2:1-2；Preferably, the temperature of secondary hole sealing is 80-90 DEG C, when
Between be 35-40min.
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Cited By (2)
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| CN110359071A (en) * | 2019-08-19 | 2019-10-22 | 吉林大学 | A kind of Aludirome anodic oxidation electrolyte and oxidation technology based on corrosion inhibiter |
| CN112853165A (en) * | 2020-12-29 | 2021-05-28 | 淮安和通汽车零部件有限公司 | Highlight aluminum oxide profile for automobile exterior trimming parts and processing method thereof |
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| CN110359071A (en) * | 2019-08-19 | 2019-10-22 | 吉林大学 | A kind of Aludirome anodic oxidation electrolyte and oxidation technology based on corrosion inhibiter |
| CN112853165A (en) * | 2020-12-29 | 2021-05-28 | 淮安和通汽车零部件有限公司 | Highlight aluminum oxide profile for automobile exterior trimming parts and processing method thereof |
| CN112853165B (en) * | 2020-12-29 | 2022-03-08 | 淮安和通汽车零部件有限公司 | Highlight aluminum oxide profile for automobile exterior trimming parts and processing method thereof |
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