CN102817059B - Novel hole sealing tank liquid for aluminum alloy oxidation section and sealing method by using the same - Google Patents
Novel hole sealing tank liquid for aluminum alloy oxidation section and sealing method by using the same Download PDFInfo
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- CN102817059B CN102817059B CN201210294181.4A CN201210294181A CN102817059B CN 102817059 B CN102817059 B CN 102817059B CN 201210294181 A CN201210294181 A CN 201210294181A CN 102817059 B CN102817059 B CN 102817059B
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- 238000007789 sealing Methods 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 230000003647 oxidation Effects 0.000 title abstract description 12
- 238000007254 oxidation reaction Methods 0.000 title abstract description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910001453 nickel ion Inorganic materials 0.000 claims abstract description 19
- 239000011148 porous material Substances 0.000 claims abstract description 5
- FTBATIJJKIIOTP-UHFFFAOYSA-K trifluorochromium Chemical compound F[Cr](F)F FTBATIJJKIIOTP-UHFFFAOYSA-K 0.000 claims description 21
- 229910021563 chromium fluoride Inorganic materials 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 14
- LVIYYTJTOKJJOC-UHFFFAOYSA-N nickel phthalocyanine Chemical compound [Ni+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 LVIYYTJTOKJJOC-UHFFFAOYSA-N 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003637 basic solution Substances 0.000 claims description 8
- 239000013543 active substance Substances 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical group [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 5
- 125000001624 naphthyl group Chemical group 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000007859 condensation product Substances 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- WQHQCQSAAOGHQP-UHFFFAOYSA-N formaldehyde;2-methylnaphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=CC2=C(S(O)(=O)=O)C(C)=CC=C21 WQHQCQSAAOGHQP-UHFFFAOYSA-N 0.000 claims description 3
- GIWMSESTASMYMF-UHFFFAOYSA-N [Na].C=C(C1=CC=CC=C1)C1=C(C=CC2=CC=CC=C12)CC1=CC=CC=C1 Chemical compound [Na].C=C(C1=CC=CC=C1)C1=C(C=CC2=CC=CC=C12)CC1=CC=CC=C1 GIWMSESTASMYMF-UHFFFAOYSA-N 0.000 claims description 2
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 2
- 229940078494 nickel acetate Drugs 0.000 claims description 2
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 claims description 2
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 229910001430 chromium ion Inorganic materials 0.000 abstract description 6
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- -1 nickelous fluorides Chemical class 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- AIYYMMQIMJOTBM-UHFFFAOYSA-L nickel(ii) acetate Chemical class [Ni+2].CC([O-])=O.CC([O-])=O AIYYMMQIMJOTBM-UHFFFAOYSA-L 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- Chemical Treatment Of Metals (AREA)
Abstract
he invention provides a novel hole sealing tank liquid for an aluminum alloy oxidation section. The tank liquid is characterized by containing trivalent chromium ions with concentration of 0.05-0.5g /L and nickel ions with concentration of 0.5-5g / L. Preferably, the novel hole sealing tank liquid contains acetic acid, a surfactant and a dispersing agent, and has a pH value between 5 and 7 and concentration of the trivalent chromium ions of 0.1g / L. The novel hole sealing tank liquid for the aluminum alloy oxidation section provided by the invention utilizes a principle that trivalent chromium ions are greener than the nickel ions; and when transparent oxide film pores absorb a small amount of chromium ions, the film pores show a particularly green color, so as to realize a surface greening effect without influencing the surface quality. The invention also provides a sealing method based on the novel hole sealing tank liquid.
Description
Technical field
The present invention relates to reaction field, metallic surface, particularly relate to the novel liquor of hole-sealing tank of a kind of oxidized aluminum alloy section bar and method for sealing thereof.
Background technology
At present, the surface treatment mode of oxidized aluminum alloy section bar is mainly divided into two large classes.One class be after section bar electrolytic oxidation again by the mode of electrophoretic painting, make surface produce the organic membrane of layer of transparent, be called electrophoresis section bar.Another kind of is after section bar electrolytic oxidation, by directly using as finished product after sealing treatment, is called oxidation sealing of hole section bar.
As everyone knows, the sealing of hole mode that aluminum current alloy oxidation section bar is current mainly contains normal-temperature hole sealing and middle temperature sealing of hole two class.The two is all with the main component of nickel ion as sealing of hole product; Mainly, the nickel ion that middle temperature sealing of hole oxidation fenestra absorbs is less, and surface color is partially white for both difference; The nickel ion that normal-temperature hole sealing oxidation fenestra absorbs is more, and surface color is partially green.The major cause of difference in color is caused to be that it is green all the more that absorbed dose gets over multi-surface because nickel ion itself is aobvious green.
In recent years, the oxidized aluminum alloy section bar that a kind of surface color is green is especially subject to consumers gradually, i.e. so-called blue or green sand oxidation section bar.But, want to reach surface effect green especially and raising nickel ion concentration can not be relied on merely again; This is because the main component in normal-temperature hole sealing tank liquor is nickelous fluoride, the content of fluorion and nickel ion has certain proportion, if concentration is too high, oxidized surface can produce one deck sealing of hole ash, affects surface quality.
In view of this, a kind of surface color is very necessary to develop green especially and don't affect the novel liquor of hole-sealing tank of surface quality.
Summary of the invention
For the difficulty that prior art exists, the object of the present invention is to provide a kind of aluminum oxide section bar sealing of hole rear surface green especially, the novel liquor of hole-sealing tank that surface quality is good.
For reaching above object, the present invention adopts following technical scheme.
The novel liquor of hole-sealing tank of a kind of oxidized aluminum alloy section bar, comprising: dilute acetic acid, nickelous fluoride, tensio-active agent, and dispersion agent; It is characterized in that, also containing chromium fluoride in described novel liquor of hole-sealing tank, this chromium fluoride dissolves and produces trivalent chromic ion, and the concentration of described trivalent chromic ion is: 0.05g/L ~ 0.5g/L; The concentration of described nickel ion is: 0.5g/L ~ 5g/L.
As with improvement, described nickelous fluoride nickelous carbonate or nickel acetate substitute.
As with improvement, described tensio-active agent is sodium laurylsulfonate, and the concentration of this tensio-active agent is 1g/L ~ 5g/L, the tensio-active agent of this concentration effectively improve liquor of hole-sealing tank by adsorptive power, make liquor of hole-sealing tank can be sprayed on workpiece surface and carry out sealing of hole.
As with improvement, described dispersion agent is naphthyl methylene sodium sulfonate, methylene-bis benzyl naphthalene sodium sulfonate, one or more in methyl naphthalene sulfonic acid salt formaldehyde condensation products, and the concentration of described dispersion agent is 10g/L ~ 20g/L.
The present invention also provides a kind of method for sealing based on aforementioned novel liquor of hole-sealing tank, and it is characterized in that, concrete steps comprise:
Prepared by the first step dilute acetic acid solution, in the acid-resistant tank filling water, drip acetic acid, and acquisition concentration is at the dilute acetic acid solution of 30%-35%;
Second step salt dissolves, and nickelous fluoride, chromium fluoride, sodium laurylsulfonate, naphthyl methylene sodium sulfonate slowly join in dilute acetic acid solution by volume ratio by weight, and limit edged stirs, until nickelous fluoride, chromium fluoride dissolve completely;
The novel liquor of hole-sealing tank dilution of 3rd step, add water toward nickelous fluoride solution for continuous, until nickel ion is diluted to 0.5g/L ~ 1.5g/L, chromium fluoride is diluted to 0.1g/L;
4th step adjusted to ph, adds ammoniacal liquor gradually in tank liquor, and ammoniacal liquor mass percent, between 25% to 35%, makes its pH value adjust between 5-7;
5th step sealing of hole operation, is placed in basic solution by workpiece and soaks, and the workpiece after soaking is carried out sealing of hole.
As with improvement, described sealing of hole is operating as: be placed in by workpiece in the novel liquor of hole-sealing tank of temperature between 25 DEG C ~ 35 DEG C, the sealing pores time is 10-15 minute.
As with improvement, described sealing of hole operation comprises: pre-sealing of hole and high temperature hole sealing two step; First workpiece is placed in the pre-sealing of hole of common pore-sealing liquid 5 minutes, then sprays the novel liquor of hole-sealing tank containing trivalent chromic ion at the workpiece surface of pre-sealing of hole and carry out pyroprocessing; Described pyroprocessing adopts microwave or infrared heating mode.
As with improvement, described basic solution is the sodium hydroxide solution of pH value between 7-8.
As with improvement, described sealing of hole is operating as: directly workpiece surface spraying liquor of hole-sealing tank after steeping, then adopts microwave to heat evaporate to dryness to liquor of hole-sealing tank; Described microwave heating temperature is between 100 degrees Celsius to 300 degrees Celsius.
Adopt the novel liquor of hole-sealing tank of a kind of oxidized aluminum alloy section bar provided by the invention, there is following beneficial effect: by adding a small amount of chromium fluoride in liquor of hole-sealing tank, utilize trivalent chromic ion intrinsic colour more partially greener than nickel ion, color green especially will be manifested after transparent oxidation fenestra absorbs a small amount of chromium ion.So neither affect the effect that surface quality reaches again surperficial greening.
Adopt method for sealing provided by the invention, with weakly acid solns such as acetic acid for solvent, carry out adjusted to ph with weakly alkaline solutions such as ammoniacal liquor, the convenient potential of hydrogen controlling liquor of hole-sealing tank; Meanwhile, adopt alkaline solution of sodium hydroxide to soak workpiece before sealing of hole, make workpiece surface be alkalescence, sealing of hole is effective.In addition, the present invention is by after the pre-sealing of hole of the common pore-sealing liquid of employing, and the novel liquor of hole-sealing tank containing trivalent chromic ion at workpiece surface spraying carries out pyroprocessing, effectively improves sealing of hole efficiency.
Accompanying drawing explanation
Figure 1 shows that method for sealing embodiment one schema provided by the invention;
Figure 2 shows that method for sealing embodiment two sealing of hole operational flowchart provided by the invention.
Embodiment
For setting forth essence of the present utility model further, by reference to the accompanying drawings embodiment of the present utility model is described as follows.
Liquor of hole-sealing tank prepares embodiment one
By 50 grams of nickelous fluorides, 5 grams of chromium fluorides, 50 grams of sodium laurylsulfonates and 150 grams of naphthyl methylene sodium sulfonates join in 50ml dilute acetic acid solution, and limit edged stirs, until salt dissolves the liquor of hole-sealing tank obtaining high density completely; Then continue to add water in liquor of hole-sealing tank, until nickel ion is diluted to 0.5g/L ~ 5g/L, trivalent chromic ion is diluted to 0.1g/L.
The liquor of hole-sealing tank that the present embodiment provides is by controlling at 0.5g/L ~ 5g/L by nickel ion concentration, the aluminum alloy surface after sealing of hole is made to have good corrosion resistance, simultaneously, by trivalent chromic ion is controlled at 0.1g/L, not only ensure that the general green effect of aluminum alloy surface, also can not bring additional effect to environment and corrosion-resistant coating.
Liquor of hole-sealing tank prepares embodiment two
By 50 grams of nickelous carbonates, 5 grams of chromium fluorides, 50 grams of sodium laurylsulfonates and 180 grams of methylene-bis benzyl naphthalene sodium sulfonates join in 50ml dilute acetic acid solution, and limit edged stirs, until salt dissolves the liquor of hole-sealing tank obtaining high density completely; Then continue to add water in liquor of hole-sealing tank, until nickel ion is diluted to 0.5g/L ~ 5g/L, chromium fluoride is diluted to 0.2g/L.
The present embodiment by the content of enlarged surface promoting agent, effectively improve liquor of hole-sealing tank by adsorptive power, directly by the mode sprayed, liquor of hole-sealing tank can be adsorbed on workpiece surface.
Liquor of hole-sealing tank prepares embodiment three
By 50 grams of nickel acetates, 5 grams of chromium fluorides, 50 grams of sodium laurylsulfonates, the mixture of 200 grams of methyl naphthalene sulfonic acid salt formaldehyde condensation products and naphthyl methylene sodium sulfonate, join in 50ml dilute acetic acid solution, limit edged stirs, until salt dissolves the liquor of hole-sealing tank obtaining high density completely; Then continue to add water in liquor of hole-sealing tank, until nickel ion is diluted to 0.5g/L ~ 5g/L, chromium fluoride is diluted to 0.08g/L.
Method for sealing embodiment one
As shown in Figure 1, a kind of method for sealing of oxidized aluminum alloy section bar, its concrete steps comprise: prepared by the first step (step1) dilute acetic acid solution, in the acid-resistant tank filling water, drip acetic acid, acquisition dilute acetic acid solution.
Second step step2 salt dissolves, and nickelous fluoride, chromium fluoride slowly join in dilute acetic acid solution by volume ratio by weight, and limit edged stirs, until nickelous fluoride, chromium fluoride dissolve completely.
3rd step step3 liquor of hole-sealing tank dilution, add water toward nickelous fluoride solution for continuous, until nickel ion is diluted to 0.5g/L ~ 1.5g/L, chromium fluoride is diluted to 0.1g/L.
4th step step4 adjusted to ph, adds ammoniacal liquor gradually in tank liquor, makes its pH value adjust between 5-7;
5th step step5 sealing of hole operation, is placed in basic solution by workpiece and soaks, the workpiece after immersion is placed in novel liquor of hole-sealing tank and carries out sealing of hole.
Wherein, the condition of described sealing of hole operation is: Novel sealing hole slot liquid temp is between 25 DEG C ~ 35 DEG C, and the sealing pores time is 10-15 minute.Described basic solution is the sodium hydroxide solution of pH value between 7-8.
The method for sealing of a kind of oxidized aluminum alloy section bar that the present embodiment provides, by adding a small amount of chromium fluoride in chromium fluoride liquor of hole-sealing tank, utilize trivalent chromic ion intrinsic colour more partially greener than nickel ion, color green especially will be manifested after transparent oxidation fenestra absorbs a small amount of chromium ion, so neither affect the effect that surface quality reaches again surperficial greening.Meanwhile, adopt the weakly alkaline solutions such as ammoniacal liquor to carry out adjusted to ph, and after being soaked in basic solution by workpiece, carry out sealing of hole again, avoid liquor of hole-sealing tank to produce anticaustic because of too low the caused aluminum alloy surface of pH value, ensure that sealing of hole effect.
Method for sealing embodiment two
The method for sealing of a kind of oxidized aluminum alloy section bar that the present embodiment provides, its step and method for sealing embodiment one basically identical, difference is: the operation of described sealing of hole comprises: pre-sealing of hole operation step151 and high temperature hole sealing process step52, as shown in Figure 2.
Wherein, described pre-sealing of hole operation step51 refers to, the workpiece after immersion in basic solution is placed in common liquor of hole-sealing tank sealing of hole and operates five minutes.
Described high temperature hole sealing process step52 refers to, is taken out by the workpiece of pre-sealing of hole, then at workpiece surface spraying containing the novel liquor of hole-sealing tank of trivalent chromic ion, and the workpiece after spraying put into high-temperature cabinet carry out high-temperature operation.Preferably, described high-temperature cabinet is microwave heating installation.In other embodiments, described high-temperature cabinet is infrared rays or water vapour heating unit, is not limited to the present embodiment.
The method for sealing of a kind of oxidized aluminum alloy section bar that the present embodiment provides, adopt the mode that pre-sealing of hole and microwave sealing of hole combine, not only sealing of hole rear surface is effective, also can not change because of liquor of hole-sealing tank formula the unpredictalbe shortcoming brought; Meanwhile, greatly reduce the sealing of hole time of workpiece, production efficiency is high.
Sealing of hole embodiment three
The method for sealing of a kind of oxidized aluminum alloy section bar that the present embodiment provides, its step and method for sealing embodiment one basically identical, difference is: described sealing of hole is operating as direct workpiece surface spraying liquor of hole-sealing tank after steeping, then adopts microwave to heat evaporate to dryness to liquor of hole-sealing tank, realizes sealing of hole.Described microwave heating temperature is between 100 degrees Celsius to 300 degrees Celsius.
The method for sealing of a kind of oxidized aluminum alloy section bar that the present embodiment provides, just can realize sealing of hole operation without the need to being placed in by workpiece in sealing of hole groove, and adopt microwave to form high temperature, sealing of hole speed is fast, and surface effect is good.
Above embodiment has been described in detail essence of the present utility model, but can not limit protection scope of the present invention with this.Apparently, under the enlightenment of essence of the present invention, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that these improve and modify and all drops within claims.
Claims (9)
1. the novel liquor of hole-sealing tank of oxidized aluminum alloy section bar, comprising: dilute acetic acid, nickelous fluoride, tensio-active agent, and dispersion agent; It is characterized in that, also containing chromium fluoride in described novel liquor of hole-sealing tank, this chromium fluoride dissolves and produces trivalent chromic ion, and the concentration of described trivalent chromic ion is: 0.05g/L ~ 0.5g/L; The concentration of described nickel ion is: 0.5g/L ~ 5g/L.
2. novel liquor of hole-sealing tank according to claim 1, is characterized in that, described nickelous fluoride nickelous carbonate or nickel acetate substitute.
3. novel liquor of hole-sealing tank according to claim 1, is characterized in that, described tensio-active agent is sodium laurylsulfonate, and the concentration of this tensio-active agent is 1g/L ~ 5g/L.
4. novel liquor of hole-sealing tank according to claim 1, it is characterized in that, described dispersion agent is naphthyl methylene sodium sulfonate, methylene-bis benzyl naphthalene sodium sulfonate, one or more in methyl naphthalene sulfonic acid salt formaldehyde condensation products, the concentration of described dispersion agent is 10g/L ~ 20g/L.
5., based on a method for sealing for novel liquor of hole-sealing tank described in any one in claim 1-4, it is characterized in that, concrete steps comprise:
Prepared by the first step dilute acetic acid solution, in the acid-resistant tank filling water, drip acetic acid, and acquisition concentration is at the dilute acetic acid solution of 30%-35%;
Second step salt dissolves, and nickelous fluoride, chromium fluoride, sodium laurylsulfonate, naphthyl methylene sodium sulfonate slowly join in dilute acetic acid solution by volume ratio by weight, and limit edged stirs, until nickelous fluoride, chromium fluoride dissolve completely;
The novel liquor of hole-sealing tank dilution of 3rd step, add water toward nickelous fluoride solution for continuous, until nickel ion is diluted to 0.5g/L ~ 1.5g/L, chromium fluoride is diluted to 0.1g/L;
4th step adjusted to ph, adds ammoniacal liquor gradually in tank liquor, and ammoniacal liquor mass percent, between 25% to 35%, makes its pH value adjust between 5-7;
5th step sealing of hole operation, is placed in basic solution by workpiece and soaks, and the workpiece after soaking is carried out sealing of hole.
6. method for sealing according to claim 5, is characterized in that, described sealing of hole is operating as: be placed in by workpiece in the novel liquor of hole-sealing tank of temperature between 25 DEG C ~ 35 DEG C, the sealing pores time is 10-15 minute.
7. method for sealing according to claim 5, is characterized in that, described sealing of hole operation comprises: pre-sealing of hole and high temperature hole sealing two step; First workpiece is placed in the pre-sealing of hole of common pore-sealing liquid 5 minutes, then sprays the novel liquor of hole-sealing tank containing trivalent chromic ion at the workpiece surface of pre-sealing of hole and carry out pyroprocessing; Described pyroprocessing adopts microwave or infrared heating mode.
8. method for sealing according to claim 5, is characterized in that, described basic solution is the sodium hydroxide solution of pH value between 7-8.
9. method for sealing according to claim 5, is characterized in that, described sealing of hole is operating as: direct workpiece surface spraying liquor of hole-sealing tank after steeping, then adopts microwave to heat evaporate to dryness to liquor of hole-sealing tank; Described microwave heating temperature is between 100 degrees Celsius to 300 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294181.4A CN102817059B (en) | 2012-08-18 | 2012-08-18 | Novel hole sealing tank liquid for aluminum alloy oxidation section and sealing method by using the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294181.4A CN102817059B (en) | 2012-08-18 | 2012-08-18 | Novel hole sealing tank liquid for aluminum alloy oxidation section and sealing method by using the same |
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| CN102817059B true CN102817059B (en) | 2015-05-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103498179B (en) * | 2013-10-22 | 2014-08-06 | 哈尔滨三泳金属表面技术有限公司 | Aluminum or aluminum alloy surface oxide film and method for preparing same |
| CN103710736A (en) * | 2013-12-23 | 2014-04-09 | 广西博士海意信息科技有限公司 | Aluminum alloy hole sealing agent |
| CN106498475A (en) * | 2016-10-21 | 2017-03-15 | 南京鸿发有色金属制造股份有限公司 | A kind of aluminium section bar liquor of hole- sealing tank automatic regulating system |
| JP7118402B2 (en) * | 2018-04-26 | 2022-08-16 | 奥野製薬工業株式会社 | Sealing treatment liquid for anodized film of aluminum alloy, concentrated liquid and sealing treatment method |
| CN109234782A (en) * | 2018-11-22 | 2019-01-18 | 保定诺博汽车装饰件有限公司 | A kind of aluminium and the high alkali resistance sealer of aluminium alloy anode oxide film and enclosure method |
| CN109778284A (en) * | 2019-01-18 | 2019-05-21 | 广州欧邦联合建材有限公司 | A kind of aluminium ring is protected without nickel sealer, preparation method and its enclosure method |
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