CN117947481A - Manufacturing process of aluminum alloy finished product with mirror surface pattern - Google Patents
Manufacturing process of aluminum alloy finished product with mirror surface pattern Download PDFInfo
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- CN117947481A CN117947481A CN202311771907.3A CN202311771907A CN117947481A CN 117947481 A CN117947481 A CN 117947481A CN 202311771907 A CN202311771907 A CN 202311771907A CN 117947481 A CN117947481 A CN 117947481A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 142
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 claims abstract description 55
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- 230000003647 oxidation Effects 0.000 claims abstract description 34
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 34
- 238000005498 polishing Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000004043 dyeing Methods 0.000 claims abstract description 18
- 238000005488 sandblasting Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 26
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 22
- 230000007797 corrosion Effects 0.000 claims description 21
- 238000005260 corrosion Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000003381 stabilizer Substances 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 15
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 15
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 14
- -1 polyoxyethylene Polymers 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 13
- 239000003112 inhibitor Substances 0.000 claims description 12
- WBHHMMIMDMUBKC-QJWNTBNXSA-M ricinoleate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O WBHHMMIMDMUBKC-QJWNTBNXSA-M 0.000 claims description 12
- 229940066675 ricinoleate Drugs 0.000 claims description 12
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 claims description 11
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 10
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 10
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- 150000007524 organic acids Chemical class 0.000 claims description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 6
- 239000011975 tartaric acid Substances 0.000 claims description 6
- 235000002906 tartaric acid Nutrition 0.000 claims description 6
- 238000000265 homogenisation Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 206010067171 Regurgitation Diseases 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 17
- 238000002310 reflectometry Methods 0.000 description 16
- 239000000956 alloy Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 15
- 238000002791 soaking Methods 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 239000012459 cleaning agent Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- HMEKVHWROSNWPD-UHFFFAOYSA-N Erioglaucine A Chemical compound [NH4+].[NH4+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C(=CC=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 HMEKVHWROSNWPD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGOBMKYRQHEFGQ-UHFFFAOYSA-L acid green 5 Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C=CC(=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 DGOBMKYRQHEFGQ-UHFFFAOYSA-L 0.000 description 1
- CQPFMGBJSMSXLP-UHFFFAOYSA-M acid orange 7 Chemical compound [Na+].OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 CQPFMGBJSMSXLP-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 239000010407 anodic oxide Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- FPVGTPBMTFTMRT-UHFFFAOYSA-L disodium;2-amino-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C(N)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 FPVGTPBMTFTMRT-UHFFFAOYSA-L 0.000 description 1
- VVIVVAIHOWVTHB-UHFFFAOYSA-L disodium;3-[[4-amino-9,10-dioxo-3-[2-sulfonato-4-(2,4,4-trimethylpentan-2-yl)phenoxy]anthracen-1-yl]amino]-2,4,6-trimethylbenzenesulfonate Chemical compound [Na+].[Na+].CC1=CC(C)=C(S([O-])(=O)=O)C(C)=C1NC1=CC(OC=2C(=CC(=CC=2)C(C)(C)CC(C)(C)C)S([O-])(=O)=O)=C(N)C2=C1C(=O)C1=CC=CC=C1C2=O VVIVVAIHOWVTHB-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- XZUAPPXGIFNDRA-UHFFFAOYSA-N ethane-1,2-diamine;hydrate Chemical compound O.NCCN XZUAPPXGIFNDRA-UHFFFAOYSA-N 0.000 description 1
- 235000019233 fast yellow AB Nutrition 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The application relates to the field of aluminum alloy surface treatment, and in particular discloses a manufacturing process of an aluminum alloy finished product with mirror patterns, which comprises the following preparation steps: s1, cleaning the surface of an aluminum alloy; s2, carrying out sand blasting treatment on the surface of the aluminum alloy treated in the step S1; s3, carrying out laser polishing on the local area of the aluminum alloy surface treated in the step S2 according to the required pattern shape to form a mirror pattern area; s4, homogenizing the surface of the aluminum alloy treated in the step S3 by using a pretreatment agent; s5, carrying out anodic oxidation, acid-regurgitation treatment and dyeing on the aluminum alloy treated in the step S4; s6, hole sealing treatment is carried out on the aluminum alloy treated in the step S5, so that an aluminum alloy finished product with a mirror pattern is obtained.
Description
Technical Field
The application relates to the field of aluminum alloy surface processing treatment, in particular to a manufacturing process of an aluminum alloy finished product with a mirror pattern.
Background
The aluminum alloy material has the characteristics of light weight, higher hardness and strength, better thermal conductivity and easy molding, so that the aluminum alloy material is widely applied to the shells of daily electronic products, such as mobile phones, computers, electronic cigarettes or wearable equipment shells, but most of the aluminum alloy material has poor corrosion resistance, and therefore the aluminum alloy material needs to be treated by adopting surface treatment processes such as anodic oxidation and the like, so that a layer of protective oxide film is formed on the surface of the aluminum alloy material, and the corrosion resistance of the aluminum alloy material is remarkably improved.
Along with the gradual improvement of aesthetic quality of people, in order to further improve the use texture and aesthetic property of aluminum alloy material application, the surface of the aluminum alloy material is generally subjected to polishing, mirror surface and other processes, and the mirror surface pattern processing of the surface of the aluminum alloy material is one of the processing processes, and at present, the commonly used processing process of the mirror surface pattern of the surface of the aluminum alloy material is as follows: firstly, carrying out local mechanical polishing on an aluminum alloy material to form a mirror effect, covering a photosensitive ink film on a region forming the mirror effect, exposing and developing the photosensitive ink film to form a pattern layer with a protective film, then carrying out sand blasting, cleaning and degreasing, alkali etching, neutralization, polishing and anodic oxidation, dyeing and hole sealing treatment on the surface of the aluminum alloy material, finally removing the protective layer, carrying out secondary anodic oxidation, dyeing and hole sealing, and forming a mirror pattern on the surface of the treated aluminum alloy material, thereby obtaining an aluminum alloy finished product with the mirror pattern.
However, the treatment process has the defect of complex procedures, and in the process of removing the protective film, the aluminum alloy finished product needs to be soaked in the liquid medicine for removing the protective film, so that the surface of the aluminum alloy material is easily damaged, and the yield of the treated aluminum alloy finished product is reduced.
Disclosure of Invention
In order to solve the defect of complex working procedures in the existing aluminum alloy surface mirror pattern treatment process, and in the process of removing the protective film, the aluminum alloy finished product needs to be soaked in the liquid medicine for removing the protective film, so that the surface of the aluminum alloy material is easily damaged, and the yield of the treated aluminum alloy finished product is reduced, the application provides a manufacturing process of the aluminum alloy finished product with the mirror pattern.
The manufacturing process of the aluminum alloy finished product with the mirror surface pattern adopts the following technical scheme:
the manufacturing process of the aluminum alloy finished product with the mirror pattern comprises the following preparation steps:
S1, cleaning the surface of an aluminum alloy;
s2, carrying out sand blasting treatment on the surface of the aluminum alloy treated in the step S1;
S3, carrying out laser polishing on the local area of the aluminum alloy surface treated in the step S2 according to the required pattern shape to form a mirror pattern area;
S4, homogenizing the surface of the aluminum alloy treated in the step S3 by using a pretreatment agent;
s5, performing anodic oxidation, acid-spraying cleaning and dyeing treatment on the aluminum alloy treated in the step S4;
S6, carrying out hole sealing treatment on the aluminum alloy treated in the step S5 to obtain an aluminum alloy finished product with a mirror pattern.
Through adopting above-mentioned technical scheme, firstly, wash the aluminum alloy, get rid of the oxidation film and the dirty on aluminum alloy surface, afterwards carry out the sand blasting to the aluminum alloy after wasing, make aluminum alloy surface form comparatively even and coarse sand blasting adhesion layer, promote follow-up aluminum alloy surface treatment plating's adhesion, improve aluminum alloy surface's glossiness, promote the quality of the aluminum alloy goods that make, afterwards carry out laser polishing to the local region of aluminum alloy that is processed through sand blasting, aluminum alloy surface absorbs laser energy and reaches the fusing point rapidly, make aluminum alloy surface take place to melt, make aluminum alloy surface flattening under the effect of surface tension and gravity, and then form mirror pattern effect, mirror pattern effect can be adjusted according to the demand shape, mirror pattern shape through laser polishing forms is clear, can be applicable to in the mirror pattern polishing of small-size and meticule, afterwards use pretreatment agent to the aluminum alloy, further clean dirty and granule on aluminum alloy surface, make aluminum alloy surface further carry out the homogenization and flattening, afterwards carry out anodic oxidation, form the anodic oxidation film that has even micropore on aluminum alloy surface, after that makes the oxidation film, and finally carry out the uniform hole sealing dyeing, the hole sealing dyeing that has promoted the stability after this, the mirror pattern effect can be adjusted according to the required shape.
The manufacturing process provided by the application has the advantages that the yield is high, the process is simple, secondary anodic oxidation treatment is not needed, the aluminum alloy finished product with the mirror surface pattern, which has better use texture and attractive appearance, is prepared, the mirror surface pattern area is fine and smooth, the reflectivity is higher, the non-mirror surface area has moderate roughness and reflectivity, a uniform sand surface is formed, and the texture and the flatness are better.
Preferably, in the step S2, a sand blasting treatment is performed by using ceramic sand, wherein the particle size of the ceramic sand is 0.04-0.08mm.
Through adopting above-mentioned technical scheme, the ceramic sand of preferred particle diameter has better hardness and elasticity, at the in-process of sandblast, is difficult for damaging aluminum alloy, and the sandblast back surface is comparatively even, forms the sand blasting layer of even stability and having better roughness, easily carries out the processing of follow-up process.
Preferably, the repetition frequency of the laser polishing in the step S3 is 26-32KHz, the laser wavelength is 1064nm, and the pulse width is 20-30ns.
By adopting the technical scheme, the superior laser polishing parameters can enable the polishing depth to be moderate and the surface roughness to be smaller, and the local area of the aluminum alloy surface forms a uniform mirror pattern.
Preferably, the pretreatment agent is prepared from the following raw materials in percentage by weight:
The homogenizing agent consists of dodecyl dimethyl amine oxide, oleyl amine polyoxyethylene ether and polyoxyethylene ricinoleate, wherein the weight ratio of the dodecyl dimethyl amine oxide to the oleyl amine polyoxyethylene ether to the polyoxyethylene ricinoleate is 1 (3-3.5) (0.4-0.8).
By adopting the technical scheme, as the surface of the aluminum alloy is provided with more metal scraps after sand blasting and laser polishing, and the flatness of the surface is further required to be adjusted, the surface of the aluminum alloy is required to be treated through the treatment steps of cleaning, degreasing, corrosion, neutralization, chemical polishing and the like, so that the surface of the aluminum alloy is cleaned and homogenized, but the treatment procedures are complicated, and the mirror surface pattern which is subjected to laser polishing is easily damaged in the treatment process.
The sulfuric acid and the organic acid are used as a compound acid cleaning and polishing acid system, the homogenizer has the effect of improving the cleaning and corrosion uniformity, wherein the dodecyl dimethyl amine oxide has better surface cleaning and adsorptivity, the oleyl amine polyoxyethylene ether has better surface adhesiveness and dispersion ductility, the polyoxyethylene ricinoleate has better wetting and emulsifying properties, the three are compounded in a better proportion and applied to the technical scheme of the application, so that better synergistic effect can be generated, the pretreatment agent uniformly and stably diffuses and extends to the surface of the aluminum alloy, the stabilizer can have better synergistic effect with the homogenizer, further can be uniformly dispersed and adhered to the surface of the aluminum alloy, the surface of the aluminum alloy is uniformly corroded, the uneven corrosion of the surface of the aluminum alloy is reduced, the non-mirror surface area of the aluminum alloy is uniformly corroded under the condition that the mirror surface area is not damaged, the corrosion of the aluminum alloy is further corroded by the pretreatment agent, the cleaning and polishing uniformity is improved, and the corrosion inhibitor can have the effect on the surface of the aluminum alloy.
Preferably, the organic acid consists of citric acid and tartaric acid, and the weight ratio of the citric acid to the tartaric acid is 1 (0.1-0.4).
By adopting the technical scheme, citric acid and tartaric acid with a better proportion are used as organic acid to be added into the system, so that a mild compound acid system can be formed with sulfuric acid, the surface of the aluminum alloy is uniformly and moderately corroded, and the corrosion uniformity is improved.
Preferably, the stabilizer consists of hydroxyethyl cellulose and polyvinylpyrrolidone, and the weight ratio of the hydroxyethyl cellulose to the polyvinylpyrrolidone is 1 (0.2-0.5).
Through adopting above-mentioned technical scheme, the stabilizer of preferred proportion can be even dissolve dispersion to the pretreatment agent in, forms the pretreatment agent that has stable adhesion nature, can further promote the even corrosivity to aluminum alloy surface, and can not produce the damage to the mirror surface region.
Preferably, the corrosion inhibitor is a phosphate corrosion inhibitor.
By adopting the technical scheme, the phosphate aluminum corrosion inhibitor can form a compact and uniform protective film on the surface of the aluminum alloy under the action of the stabilizer and the homogenizer, thereby effectively reducing the uneven corrosion of the pretreatment agent to the surface of the aluminum alloy and improving the corrosion uniformity.
Preferably, the preparation steps of the pretreatment agent are as follows:
1) Adding a stabilizer into water, and uniformly stirring at 40-60 ℃ to obtain a mixture A;
2) Adding organic acid into the mixture A, stirring and dissolving uniformly to prepare a mixture B;
3) Adding a homogenizing agent, a corrosion inhibitor and a surfactant into the mixture B, and uniformly stirring to obtain a mixture C;
4) And adding sulfuric acid into the mixture C, and uniformly stirring to obtain the pretreatment agent.
Through adopting the technical scheme, firstly, the stabilizer is dissolved in water, then the organic acid is added for dissolution, then the homogenizing agent, the corrosion inhibitor and the surfactant are added to form a mixture system with uniform viscosity, and finally the sulfuric acid is added, so that the prepared pretreatment agent is uniformly dispersed and the system is stable.
Preferably, the homogenization treatment in the step S4 is carried out for 5-10min at 40-60 ℃.
By adopting the technical scheme, the surface of the aluminum alloy can be uniformly corroded by the better homogenization treatment parameters, and the stability of subsequent processing is improved.
Preferably, the anodic oxidation in the step S5 has a current density of 1.0-1.5A/dm 2, a voltage of 12-14V, and a thickness of the anodic oxide film formed after the anodic oxidation of 10-15 μm.
By adopting the technical scheme, the uniform anodic oxidation film can be formed on the surface of the aluminum alloy by the aid of the superior anodic oxidation treatment parameters.
Preferably, the temperature of the hole sealing treatment in the step S6 is 75-85 ℃ and the time is 25-35min.
By adopting the technical scheme, the aluminum alloy can be sealed stably by the aid of the better sealing parameters, and stability of fixation performance of the prepared aluminum alloy finished product is improved.
In summary, the application has the following beneficial effects:
1. The manufacturing process provided by the application has the advantages that the yield is high, the process is simple, secondary anodic oxidation is not needed, the aluminum alloy finished product with the mirror surface pattern, which has better use texture and attractive degree, is prepared, the mirror surface pattern area is not damaged, the mirror surface pattern area is fine and smooth, the reflectivity is higher, the non-mirror surface area has moderate roughness and reflectivity, a uniform sand surface is formed, and the texture and the flatness are better.
2. The surface of the aluminum alloy is homogenized by using a pretreatment agent prepared by using a homogenizing agent and a stabilizing agent with a relatively high amount as auxiliary agents, and the surface of the aluminum alloy is uniformly corroded while the mirror effect of the mirror area is not damaged. Further improves the flatness and uniformity of the surface of the prepared aluminum alloy, further improves the texture and the attractiveness of the finished aluminum alloy product with the mirror surface pattern, and improves the subsequent processing stability of the aluminum alloy.
Detailed Description
The present application will be described in further detail with reference to examples.
The following are sources and specification parameters of some of the raw materials of the present application, and the raw materials used in the preparation examples and examples of the present application can be obtained commercially:
1. Oleylamine polyoxyethylene ether: the oleylamine is polyoxyethylene (2) ether, the industrial grade is higher than 97%;
2. Polyoxyethylene ricinoleate: brand Sangda EL-60,1% aqueous solution pH5.0-7.0, HLB value 14-15.5;
3. Hydroxyethyl cellulose: molecular weight 75 ten thousand;
4. polyvinylpyrrolidone: PVP-K30,1% aqueous solution pH3-5;
5. Phosphate corrosion inhibitors: dexu new material DX512, nonionic, density 1.08g/cm 3, 1% aqueous solution pH1.5-3.5;
6. Ceramic sand: model: b170, component (70% zirconia, 30% silica), particle size 0.04-0.08mm.
Preparation example of pretreatment agent
Preparation example 1
Preparation 1 discloses a pretreatment agent, which is prepared by the following steps:
1) Adding 4kg of hydroxyethyl cellulose serving as a stabilizer into 56.5kg of water, stirring for 30min at the temperature of 40 ℃, and uniformly stirring to prepare a mixture A;
2) Adding an organic acid consisting of 14.55kg of citric acid and 1.45kg of tartaric acid into the mixture A, stirring for 40min, stirring, dissolving and uniformly mixing to prepare a mixture B;
3) Adding 6kg of oleylamine polyoxyethylene ether serving as a homogenizing agent, 1kg of phosphate corrosion inhibitor and a surfactant consisting of 3kg of isomeric alcohol polyoxyethylene ether and 1kg of sodium dodecyl benzene sulfonate into the mixture B, stirring for 20min, and uniformly stirring to obtain a mixture C;
4) 10kg of sulfuric acid is added into the mixture C, and the mixture C is stirred for 20min and uniformly stirred to prepare the pretreatment agent.
PREPARATION EXAMPLES 2-3
Preparation examples 2 to 3 differ from preparation example 1 in the amounts of the raw materials and the preparation conditions, see in particular Table 1.
TABLE 1 raw materials amounts and preparation conditions of preparation examples 1 to 3
Preparation example 4
Preparation example 4 differs from preparation example 1 in that the stabilizer of preparation example 4 is composed of 3.33kg of hydroxyethylcellulose and 0.67kg of polyvinylpyrrolidone, and the other is the same as in preparation example 1.
Preparation example 5
Preparation example 5 differs from preparation example 1 in that the stabilizer in preparation example 5 is composed of 2.67kg of hydroxyethylcellulose and 1.33kg of polyvinylpyrrolidone, and the other is the same as in preparation example 1.
Preparation example 6
Preparation example 6 differs from preparation example 5 in that the homogenizing agent in preparation example 6 is composed of 1.36kg of dodecyldimethylamine oxide, 4.09kg of oleylamine polyoxyethylene ether and 0.55kg of polyoxyethylene ricinoleate, and the other is the same as preparation example 5.
Preparation example 7
Preparation example 7 differs from preparation example 5 in that the homogenizing agent in preparation example 7 is composed of 1.13kg of dodecyldimethylamine oxide, 3.96kg of oleylamine polyoxyethylene ether and 0.91kg of polyoxyethylene ricinoleate, and the other is the same as preparation example 5.
Preparation example 8
Preparation example 8 differs from preparation example 7 in the amounts of the respective components used in the homogenizing agent, and the homogenizing agent in preparation example 8 is composed of 2kg of dodecyldimethylamine oxide, 2kg of oleylamine polyoxyethylene ether and 2kg of polyoxyethylene ricinoleate, and the other is the same as preparation example 7.
Preparation of comparative example 1
The difference between the preparation of comparative example 1 and preparation example 7 is that the ratio of the amounts of the homogenizing agent used in preparation comparative example 1 was different, the amount of the homogenizing agent used in preparation comparative example 1 was 5kg, and it consisted of 1.14kg of dodecyldimethylamine oxide, 3.41kg of oleylamine polyoxyethylene ether and 0.45kg of polyoxyethylene ricinoleate, the amount of water was 57.5kg, and the other was the same as in preparation example 7.
Preparation of comparative example 2
The production comparative example 2 was different from the production example 7 in the proportion of the amount of the stabilizer used, the amount of the stabilizer used in the production comparative example 2 was 0.5kg, which consisted of 0.42kg of hydroxyethyl cellulose and 0.08kg of polyvinylpyrrolidone, and the amount of water was 60kg, otherwise the same as in the production example 7.
Examples
Example 1
Embodiment 1 discloses a manufacturing process of an aluminum alloy finished product with a mirror pattern, which specifically comprises the following steps: s1, selecting 5 pieces of 6063 type aluminum alloy with the size of 50mm and 2mm, cleaning the surface of the aluminum alloy by using an acidic cleaning agent, wherein the cleaning temperature is 50 ℃, the cleaning time is 3min, the aluminum alloy is washed after cleaning, and the aluminum alloy is dried for 20min in an oven with the temperature of 80 ℃, and the acidic cleaning agent is prepared from the following raw materials; 10g/L of fatty alcohol polyoxyethylene ether sodium sulfate, 6g/L of alkyl glycoside APG0810, 20g/L of citric acid, 4g/L of disodium ethylenediamine tetraacetate and water.
S2, performing sand blasting treatment on the aluminum alloy surface treated in the step S1 by using spherical ceramic sand, wherein the sand blasting pressure is 0.1MPa, and the sand blasting time is 8S;
S3, carrying out laser polishing on the local area of the aluminum alloy surface treated in the step S2 by using a high-power laser according to the shape of the required pattern to form a mirror surface pattern area, wherein the repetition frequency of the laser polishing is 26KHz, the laser wavelength is 1064nm, and the pulse width is 20ns;
s4, preparing the pretreatment agent prepared in the preparation example 1 into a 10wt% pretreatment agent aqueous solution, heating to 40 ℃, soaking the aluminum alloy treated in the step S3 in the pretreatment agent aqueous solution for surface homogenization treatment, soaking for 5min, washing after soaking, and drying;
s5, carrying out anodic oxidation treatment on the aluminum alloy treated in the step S4, namely placing the aluminum alloy in an anodic oxidation treatment agent, carrying out anodic oxidation for 45min under the conditions of current density of 1.0A/dm 2 and voltage of 12V to form an anodic oxidation film with thickness of 10 mu m, soaking the aluminum alloy in an acid-regurgitation cleaning agent for acid-regurgitation cleaning treatment for 5min, washing with water, soaking in a dyeing liquid at 40 ℃ for 20min for dyeing, washing with water and drying;
Wherein, the anodic oxidation treating agent consists of the following raw materials: 200g/L sulfuric acid, water; the acid-regurgitation cleaning agent consists of the following raw materials: 150g/L acetic acid, 100g/L citric acid and water; the dyeing liquid consists of the following raw materials: 15g/L sodium sulfate, 20g/L organic dye and water, wherein the organic colorant is one or a combination of C.I. acid red 426, C.I. acid orange 149, C.I. acid yellow 197, C.I. acid black 109, C.I. acid green 108, C.I. acid blue 9, C.I. acid violet 48 and C.I. acid brown 290;
s6, carrying out hole sealing treatment on the aluminum alloy treated in the step S5, namely soaking the aluminum alloy in a hole sealing agent, soaking for 25min at the temperature of 75 ℃, washing with water and drying to obtain an aluminum alloy finished product with a mirror pattern; wherein the hole sealing agent is a high-temperature nickel-free hole sealing agent of Shenzhen blue surface treatment materials Co., ltd.
Examples 2 to 3
Examples 2-3 differ from example 1 in the parameters of the manufacturing process, see in particular table 2 below.
Table 2 parameter table of the manufacturing process of examples 1-3
Examples 4 to 10
Examples 4-10 differ from example 1 in the source of the pretreatment agent, see in particular Table 3 below.
TABLE 3 Source list of pretreatment Agents of examples 4-10
| Examples | Source of pretreatment agent |
| Example 4 | Preparation example 4 |
| Example 5 | Preparation example 5 |
| Example 6 | Preparation example 6 |
| Example 7 | Preparation example 7 |
| Example 8 | Preparation example 8 |
| Example 9 | Preparation of comparative example 1 |
| Example 10 | Preparation of comparative example 2 |
Comparative example
Comparative example 1
Comparative example 1 discloses a process for manufacturing an aluminum alloy finished product having a mirror pattern, comprising the steps of:
S1, polishing the aluminum alloy part by using a mechanical polishing machine;
s2, shielding the local polishing area by using shielding ink, wherein the shielding ink is common commercially available shielding ink, and the model is not limited;
s3, exposing the manufactured pattern to enable the part corresponding to the pattern to be sensitized to be a protective film, and then developing the protective film by using 2% sodium carbonate solution;
S4, sand blasting: carrying out sand blasting treatment on the surface of the aluminum alloy by using spherical ceramic sand, wherein the sand blasting pressure is 0.1MPa, and the sand blasting time is 8s;
S5, anodic oxidation: placing the aluminum alloy in an anodic oxidation treating agent, carrying out anodic oxidation for 45min under the conditions of current density of 1.0A/dm 2 and voltage of 12V to form an anodic oxidation film with thickness of 10 mu m, then soaking the aluminum alloy in an acid-discharge cleaning agent for acid-discharge cleaning treatment, washing with water after soaking for 5min, soaking in a dyeing liquid at 40 ℃ for 20min for dyeing, washing with water after dyeing, and drying, wherein the anodic oxidation treating liquid, the acid-discharge cleaning agent and the dyeing liquid are the same as those in the example 1;
S6, removing a protective film by using a stripping solution (the stripping solution is commercially available and is a stripping solution of KBX-551 series organic dry films of Shenzhen Baoxin chemical technology Co., ltd.), soaking for 3min at the temperature of 60 ℃, and then washing and drying;
S7, secondary anodic oxidation: placing the aluminum alloy in an anodic oxidation treating agent, carrying out anodic oxidation for 45min under the conditions of current density of 1.0A/dm 2 and voltage of 12V to form an anodic oxidation film with thickness of 10 mu m, then soaking the aluminum alloy in an acid-discharge cleaning agent for acid-discharge cleaning treatment, washing with water after soaking for 5min, soaking in a dyeing liquid at 40 ℃ for 20min for dyeing, washing with water after dyeing, drying, and then sealing holes, wherein the anodic oxidation treating liquid, the acid-discharge cleaning agent, the dyeing liquid and the sealing holes are the same as those in the embodiment 1, so that the aluminum alloy finished product with the mirror pattern is prepared.
Performance test
The aluminum alloys with mirror patterns prepared in examples 1 to 10 and comparative example 1 were subjected to performance test as follows:
(1) Reflectivity of mirror pattern region
Adopting a reflectivity tester, selecting the areas with mirror patterns at the two end points and the middle part of the aluminum alloy finished product as test positions, respectively testing reflectivity (unit:%), taking an average value of test results, and recording;
(2) Mirror pattern area roughness test
Adopting a surface roughness tester, regulating the surface roughness tester into an Ra mode, selecting the areas of mirror patterns at the end points of two ends and the middle part of an aluminum alloy finished product as test positions, respectively testing roughness (unit: mu m), taking an average value of test results, and recording;
(3) Non-specular pattern area reflectivity test
Adopting a reflectivity tester, selecting the end points at the two ends of the aluminum alloy finished product and the area of the non-mirror pattern in the middle as test positions, respectively testing reflectivity (unit:%), and taking an average value of test results and recording;
(4) Non-specular pattern area roughness test
Adopting a surface roughness tester, regulating the surface roughness tester into an Ra mode, selecting the non-mirror surface pattern areas at the end points and the middle part of the two ends of the aluminum alloy finished product as test positions, respectively testing roughness (unit: mu m), taking an average value of test results, and recording;
The following are the performance test data for the finished aluminum alloy products with mirror patterns prepared in examples 1-10 and comparative example 1, see in particular Table 4 below.
Table 4 table of performance test data for finished aluminum alloy products with mirror patterns of examples 1-10 and comparative example 1
It can be seen from the combination of examples 1 to 3 and examples 4 to 5 and the combination of table 4 that the use of hydroxyethylcellulose and polyvinylpyrrolidone according to the present application as a stabilizer can improve the uniformity of the pretreatment agent for the surface treatment of aluminum alloy, improve the surface flatness of aluminum alloy, and do not cause damage to the mirror surface region.
By combining examples 1-5 and examples 6-8 and combining Table 4, the better proportions of dodecyl dimethyl amine oxide, oleyl amine polyoxyethylene ether and polyoxyethylene ricinoleate of the application are used as a homogenizing agent, so that the uniformity and flatness of the surface treatment of the aluminum alloy can be better improved, the mirror surface area can not be damaged, the non-mirror surface area of the aluminum alloy is uniformly corroded, the reflectivity of the surface of the aluminum alloy in the non-mirror surface area reaches 30%, the roughness is controlled to be 0.45 mu m, and the reflectivity of the finished product of the aluminum alloy prepared by adopting the dodecyl dimethyl amine oxide, the oleyl amine polyoxyethylene ether and the polyoxyethylene ricinoleate in the non-better proportions in example 8 is reduced, the roughness is increased, and the surface texture is reduced.
It can be seen from further combination of examples 7 and examples 9-10 that the use of the preferred amounts of stabilizer and homogenizer of the present application produces a better synergistic effect, and that the resulting aluminum alloy finished product has a higher reflectivity in the specular region and a smaller specular roughness, while the non-specular regions of the aluminum alloy finished product have a better roughness while the reflectivity remains stable.
As can be seen from the combination of examples 1 to 10 and comparative example 1, the aluminum alloy finished product with mirror pattern manufactured by the manufacturing process of the present application has higher yield, better surface texture and aesthetic appearance, while the mirror area of the aluminum alloy finished product manufactured in comparative example 1 has a larger roughness and significantly reduced reflectivity, although the reflectivity and roughness can be maintained stable.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. The manufacturing process of the aluminum alloy finished product with the mirror surface pattern is characterized by comprising the following preparation steps:
S1, cleaning the surface of an aluminum alloy;
s2, carrying out sand blasting treatment on the surface of the aluminum alloy treated in the step S1;
S3, carrying out laser polishing on the local area of the aluminum alloy surface treated in the step S2 according to the required pattern shape to form a mirror pattern area;
S4, homogenizing the surface of the aluminum alloy treated in the step S3 by using a pretreatment agent;
s5, performing anodic oxidation, acid-spraying cleaning and dyeing treatment on the aluminum alloy treated in the step S4;
S6, carrying out hole sealing treatment on the aluminum alloy treated in the step S5 to obtain an aluminum alloy finished product with a mirror pattern.
2. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 1, wherein: and (2) performing sand blasting treatment by using ceramic sand in the step (S2), wherein the particle size of the ceramic sand is 0.04-0.08mm.
3. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 1, wherein: the repetition frequency of laser polishing in the step S3 is 26-32KHz, the laser wavelength is 1064nm, and the pulse width is 20-30ns.
4. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 1, wherein: the pretreatment agent is prepared from the following raw materials in percentage by weight:
Sulfuric acid 10-20%
Organic acid 8-16%
Surfactant 4-6%
Homogenizing agent 6-12%
Stabilizer 2-4%
Corrosion inhibitor 1-3%
The balance of water;
The homogenizing agent consists of dodecyl dimethyl amine oxide, oleyl amine polyoxyethylene ether and polyoxyethylene ricinoleate, wherein the weight ratio of the dodecyl dimethyl amine oxide to the oleyl amine polyoxyethylene ether to the polyoxyethylene ricinoleate is 1 (3-3.5) (0.4-0.8).
5. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 4, wherein: the organic acid consists of citric acid and tartaric acid, and the weight ratio of the citric acid to the tartaric acid is 1 (0.1-0.4).
6. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 4, wherein: the stabilizer consists of hydroxyethyl cellulose and polyvinylpyrrolidone, wherein the weight ratio of the hydroxyethyl cellulose to the polyvinylpyrrolidone is 1 (0.2-0.5).
7. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 4, wherein: the corrosion inhibitor is a phosphate corrosion inhibitor.
8. A process for manufacturing a finished aluminum alloy product with a mirror pattern according to any one of claims 4 to 7, characterized in that: the preparation steps of the pretreatment agent are as follows:
1) Adding a stabilizer into water, and uniformly stirring at 40-60 ℃ to obtain a mixture A;
2) Adding organic acid into the mixture A, stirring and dissolving uniformly to prepare a mixture B;
3) Adding a homogenizing agent, a corrosion inhibitor and a surfactant into the mixture B, and uniformly stirring to obtain a mixture C;
4) And adding sulfuric acid into the mixture C, and uniformly stirring to obtain the pretreatment agent.
9. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 8, wherein the homogenization treatment in the step S4 is performed for 5-10min at a treatment temperature of 40-60 ℃.
10. The process for manufacturing a finished aluminum alloy product with mirror patterns according to claim 1, wherein: the current density of the anodic oxidation in the step S5 is 1.0-1.5A/dm, the voltage is 12-14V, and the thickness of an anodic oxidation film formed after the anodic oxidation is 10-15 mu m; the hole sealing treatment in the step S6 is carried out at the temperature of 75-85 ℃ for 25-35min.
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