CN117265543A - Environment-friendly aluminum alloy surface ash remover and use method thereof - Google Patents
Environment-friendly aluminum alloy surface ash remover and use method thereof Download PDFInfo
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- CN117265543A CN117265543A CN202311232573.2A CN202311232573A CN117265543A CN 117265543 A CN117265543 A CN 117265543A CN 202311232573 A CN202311232573 A CN 202311232573A CN 117265543 A CN117265543 A CN 117265543A
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- aluminum alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 10
- 150000007524 organic acids Chemical class 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 239000007800 oxidant agent Substances 0.000 claims abstract description 4
- 239000002738 chelating agent Substances 0.000 claims abstract description 3
- 239000003112 inhibitor Substances 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 23
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 15
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 15
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 14
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 11
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 11
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 11
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 8
- 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 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 7
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 7
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 6
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 4
- 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 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 4
- 229960004889 salicylic acid Drugs 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 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
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- DHBXNPKRAUYBTH-UHFFFAOYSA-N 1,1-ethanedithiol Chemical compound CC(S)S DHBXNPKRAUYBTH-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 239000008367 deionised water Substances 0.000 abstract description 16
- 229910021641 deionized water Inorganic materials 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000008139 complexing agent Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 17
- 238000003756 stirring Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- 238000005457 optimization Methods 0.000 description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 6
- 229910017604 nitric acid Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000010668 complexation reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000358 iron sulfate Inorganic materials 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000533950 Leucojum Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- -1 alkyl sulfonic acid Chemical compound 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/065—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors sulfur-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an environment-friendly aluminum alloy surface ash remover and a use method thereof, wherein the environment-friendly aluminum alloy surface ash remover comprises, by weight, 2-5 parts of an oxidant, 8-12 parts of sulfuric acid, 3-5 parts of an organic acid, 2-4 parts of ferric salt, 1-3 parts of a corrosion inhibitor, 0.5-3 parts of a chelating agent, 0.5-5 parts of an anionic surfactant and 75-100 parts of deionized water. According to the invention, the anionic surfactant is added, so that the cleaning and ash removal effect is improved, the film is adhered to the surface of the aluminum alloy to prevent ash from being stained back, the appearance of the aluminum alloy can be improved by film formation, and the organic acid is combined with ash through complexing agent on the basis of being matched with concentrated sulfuric acid for ash removal, so that ash is prevented from being stained back to the surface of the aluminum alloy, and the aluminum alloy is environment-friendly, harmless to human body and good in environment-friendly performance.
Description
Technical Field
The invention relates to the technical field of aluminum alloy surface treatment agents, in particular to an environment-friendly aluminum alloy surface ash remover and a use method thereof.
Background
After the aluminum alloy is subjected to alkali corrosion or chemical polishing, aluminum is taken as active metal to be dissolved quickly, and copper, zinc, magnesium, silicon, iron and the like are dissolved slowly, so that the aluminum alloy is enriched and remained on the surface of the aluminum alloy, and black, black gray and gray brown ash exists on the surface of the aluminum alloy. Therefore, before the aluminum alloy is subjected to further surface treatment, ash removal is needed, and the phenomena of falling of a metal coating, loose oxide film, dark luster after coloring and the like are avoided.
The ash removal technology commonly used for aluminum alloy at present is a sulfuric acid method and a nitric acid method. In the sulfuric acid method, as sulfuric acid is non-oxidizing acid, the dissolution rate of ash hanging on manganese, iron, copper and the like is low, and snowflake corrosion spots are easy to appear after long-time ash removal; the nitric acid method has strong solubility to hanging ash and good ash removal effect, but nitric acid steam volatilized from nitric acid solution and decomposition products thereof pollute the environment and corrode equipment, thereby causing potential safety hazard and being environment-friendly.
Disclosure of Invention
The invention aims to provide an environment-friendly aluminum alloy surface ash remover and a use method thereof, wherein an anionic surfactant is added to improve the cleaning ash removing effect, a film is adhered on the surface of an aluminum alloy to prevent ash from being stained back, the film forming can improve the appearance of the aluminum alloy, and an organic acid is matched with a complexing agent to combine ash through the complexing effect of the organic acid on the basis of being matched with concentrated sulfuric acid for ash removal, so that ash is prevented from being stained back on the surface of the aluminum alloy.
In order to achieve the above purpose, the invention adopts the following technical scheme: an environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight:
as a further optimization, the oxidant is one or more of persulfates such as sodium persulfate, potassium persulfate and ammonium persulfate.
As a further optimization, the concentration of the sulfuric acid is more than or equal to 98%.
As a further optimization, the organic acid is one or more of citric acid, salicylic acid, tartaric acid and sulfamic acid.
As a further optimization, the iron salt is one or more of ferric chloride, ferric sulfate and ferric nitrate.
As a further optimization, the corrosion inhibitor is one or more of urea, ethanethiol, ethanedithiol and thiourea.
As a further optimization, the chelating agent is one or more of ethylenediamine tetraacetic acid disodium salt, sodium polyphosphate and aminotriacetic acid.
As a further optimization, the anionic surfactant is one or more of sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate and sodium dodecyl sulfate.
The invention also provides an aluminum alloy surface ash removal method, which comprises the step of carrying out ash removal treatment on the aluminum alloy subjected to degreasing, alkali etching or chemical polishing by adopting the environment-friendly aluminum alloy surface ash removal agent, wherein the ash removal temperature is 10-30 ℃, and the ash removal time is 5-180s.
As a further optimization, the ash removal treatment is to carry out dipping treatment on the aluminum alloy after degreasing, alkaline etching or chemical polishing through ash removal liquid, and the air treatment or the mechanical treatment, such as ultrasonic treatment or mechanical oscillation treatment, are synchronously matched.
Compared with the prior art, the invention has the following beneficial effects:
1. the anionic surfactant is added, so that the cleaning and dust removing effects are improved, and the film is adhered to the surface of the aluminum alloy to prevent the dust from being stained back, and the appearance of the aluminum alloy can be improved by film formation;
2. adding organic acid, adding concentrated sulfuric acid and oxidant to remove ash, and combining ash with complexing agent through complexing action to avoid ash from being stained with the surface of aluminum alloy;
3. the invention has small corrosiveness to aluminum alloy, does not affect the surface glossiness of the aluminum alloy, and has uniform ash removal and no residue;
4. the raw materials do not contain substances such as nitric acid, hydrofluoric acid, chromium and the like, are environment-friendly and harmless to human bodies, and have good environment-friendly performance.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Example 1
An environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight: 2 parts of sodium persulfate, 8 parts of sulfuric acid, 5 parts of sulfamic acid, 2 parts of ferric sulfate, 2 parts of urea, 1 part of sodium polyphosphate, 5 parts of sodium dodecyl benzene sulfonate and 75 parts of deionized water.
The preparation method comprises the following steps: adding deionized water into a reaction kettle, adding sulfuric acid into the reaction kettle, stirring until the sulfuric acid and the iron sulfate are uniformly mixed, cooling the reaction kettle to room temperature, adding sulfamic acid, ferric sulfate, urea, sodium polyphosphate and sodium dodecyl benzene sulfonate into the reaction kettle, stirring until the sulfuric acid, the ferric sulfate, the urea, the sodium polyphosphate and the sodium dodecyl benzene sulfonate are uniformly mixed, finally adding sodium persulfate, stirring, and adding the rest deionized water.
Example 2
An environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight: 3 parts of potassium persulfate, 8 parts of sulfuric acid, 3 parts of tartaric acid, 3 parts of ferric sulfate, 2 parts of urea, 1 part of disodium ethylenediamine tetraacetate, 5 parts of sodium dodecyl sulfate and 75 parts of deionized water.
The preparation method comprises the following steps: adding deionized water into a reaction kettle, adding sulfuric acid into the reaction kettle, stirring until the sulfuric acid and the ferric sulfate are uniformly mixed, cooling to room temperature, adding tartaric acid, ferric sulfate, urea, ethylene diamine tetraacetic acid disodium salt and sodium dodecyl sulfate into the reaction kettle, stirring until the sulfuric acid, the ferric sulfate, the urea, the ethylene diamine tetraacetic acid disodium salt and the sodium dodecyl sulfate are uniformly mixed, finally adding potassium persulfate, stirring, and adding the rest deionized water.
Example 3
An environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight: 3 parts of sodium persulfate, 10 parts of sulfuric acid, 5 parts of citric acid, 2 parts of ferric sulfate, 2 parts of thiourea, 1 part of disodium ethylenediamine tetraacetate, 2 parts of sodium dodecyl benzene sulfonate and 75 parts of deionized water.
The preparation method comprises the following steps: adding deionized water into a reaction kettle, adding sulfuric acid into the reaction kettle, stirring until the sulfuric acid and the ferric sulfate are uniformly mixed, cooling to room temperature, adding citric acid, ferric sulfate, thiourea, ethylene diamine tetraacetic acid disodium salt and sodium dodecyl benzene sulfonate into the reaction kettle, stirring until the sulfuric acid and the sodium dodecyl benzene sulfonate are uniformly mixed, finally adding sodium persulfate, stirring, and adding the rest deionized water.
Example 4
An environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight: 4 parts of potassium persulfate, 10 parts of sulfuric acid, 3 parts of salicylic acid, 3 parts of ferric sulfate, 2 parts of thiourea, 1 part of sodium polyphosphate, 2 parts of sodium dodecyl sulfate and 75 parts of deionized water.
The preparation method comprises the following steps: adding deionized water into a reaction kettle, adding sulfuric acid into the reaction kettle, stirring until the sulfuric acid and the iron sulfate are uniformly mixed, cooling the reaction kettle to room temperature, adding salicylic acid, ferric sulfate, thiourea, sodium polyphosphate and sodium dodecyl sulfate into the reaction kettle, stirring until the sulfuric acid, the ferric sulfate, the thiourea, the sodium polyphosphate and the sodium dodecyl sulfate are uniformly mixed, finally adding potassium persulfate, stirring, and adding the rest deionized water.
Example 5
An environment-friendly aluminum alloy surface ash remover comprises the following components in parts by weight: 2 parts of ammonium persulfate, 8 parts of sulfuric acid, 4 parts of sulfamic acid, 2 parts of ferric chloride, 3 parts of ethanethiol, 3 parts of sodium polyphosphate, 3 parts of sodium dodecyl sulfate and 75 parts of deionized water.
The preparation method comprises the following steps: adding deionized water into a reaction kettle, adding sulfuric acid into the reaction kettle, stirring until the sulfuric acid and the iron chloride, the ethanethiol, the sodium polyphosphate and the sodium dodecyl sulfate are uniformly mixed, cooling to room temperature, adding sulfamic acid, ferric chloride, ethanethiol, the sodium polyphosphate and the sodium dodecyl sulfate into the reaction kettle, stirring until the sulfuric acid and the sodium dodecyl sulfate are uniformly mixed, finally adding ammonium persulfate, stirring, and adding the rest deionized water.
Comparative example 1
This comparative example differs from example 1 in that the raw material sodium dodecylbenzenesulfonate was excluded and the amount of sulfamic acid was 10 parts.
Comparative example 2
This comparative example differs from example 1 in that the raw material alkylsulfonic acid was excluded and sodium dodecylbenzenesulfonate was used in an amount of 10 parts.
Comparative example 3
This comparative example differs from example 1 in that the raw materials alkyl sulfonic acid and sodium dodecyl benzene sulfonate were excluded and sulfuric acid was used in an amount of 18 parts.
Comparative example 4
Commercial aluminum alloy ash removal agent: environment-friendly JMX-130 aluminum alloy ash remover.
Application examples
The total parts of the ash removers prepared in examples 1 to 5 and comparative examples 1 to 3 were 100 parts, and ash removal experiments were performed on aluminum alloys (aluminum material brand 6063, size 150×150×2 mm) after alkali etching and polishing.
Ash removal after alkali etching:
and (3) alkali etching: 100g/l of sodium hydroxide, 75 degrees of treatment temperature and 3 minutes of treatment time, and then washing with water;
an ash removal process comprises the following steps: immersing the cleaned aluminum alloy in an ash removal working solution at a treatment temperature of 20 ℃ for 60 seconds, and then washing the aluminum alloy with water.
The surface test was performed by observing the aluminum alloy in a lamp box, then wiping the wet white cloth to remove ash, the test results are shown in the following table,
ash removal after chemical polishing:
and (3) chemical polishing process: 500g/l of 85% phosphoric acid, 250g/l of concentrated sulfuric acid, 100g/l of nitric acid, 100 degrees of treatment temperature, 2 minutes of treatment time, and then washing with water;
an ash removal process comprises the following steps: immersing the cleaned aluminum alloy in an ash removal working solution at a treatment temperature of 20 ℃ for 60 seconds, and then washing the aluminum alloy with water.
The surface test was performed by observing the aluminum alloy in a lamp box, then wiping the wet white cloth to remove ash, the test results are shown in the following table,
| appearance in lamp box | Appearance after wiping | |
| Example 1 | Clean and ashless | No residue |
| Example 2 | Clean and ashless | No residue |
| Example 3 | Clean and ashless | No residue |
| Example 4 | Clean and ashless | No residue |
| Example 5 | Clean and ashless | No residue |
| Comparative example 1 | Clean and ashless | No residue in wiping place |
| Comparative example 2 | Clean and ashless | No residue in wiping place |
| Comparative example 3 | Small amount of yellow ash | Small amount of yellow ash |
| Comparative example4 | Small amount of yellow ash | Small amount of yellow ash |
The aluminum alloy subjected to alkali corrosion and chemical polishing is subjected to ash removal treatment, and the comparison of the experimental data shows that the aluminum alloy has better ash removal effect in the embodiment of adding the anionic surfactant and the organic acid, and the reason is that: on one hand, the organic acid is matched with concentrated sulfuric acid to perform conventional ash removal, on the other hand, the organic acid also has corrosion inhibition and complexation effects, ash matters on the surface of the aluminum alloy can be better combined and separated through complexation, and the complexing agent is cooperated to prevent the ash from being stained back, so that the ash removal effect is improved; and the anionic surfactant is added, so that on one hand, the anionic surfactant has an excellent cleaning effect and is favorable for ash removal, and on the other hand, the anionic surfactant can be adhered to the surface of the aluminum alloy to form a layer of protective film, so that ash is prevented from being stained back, the ash removal effect is improved, and the appearance performance of the surface of the aluminum alloy is improved.
The invention can remove ash by soaking the aluminum alloy, can act on all positions of the aluminum alloy, and has uniform ash removal, no toxic and harmful gas is generated in the ash removal process, and the environment is friendly.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The environment-friendly aluminum alloy surface ash remover is characterized by comprising the following components in parts by weight:
2. the environment-friendly aluminum alloy surface ash remover according to claim 1, wherein the oxidant is one or more of sodium persulfate, potassium persulfate and ammonium persulfate.
3. The environment-friendly aluminum alloy surface ash remover as claimed in claim 1, wherein the concentration of sulfuric acid is more than or equal to 98%.
4. The environment-friendly aluminum alloy surface ash remover according to claim 1, wherein the organic acid is one or more of citric acid, salicylic acid, tartaric acid and sulfamic acid.
5. The environment-friendly aluminum alloy surface ash remover according to claim 1, wherein the ferric salt is one or more of ferric chloride, ferric sulfate and ferric nitrate.
6. The environment-friendly aluminum alloy surface ash remover according to claim 1, wherein the corrosion inhibitor is one or more of urea, ethanethiol, ethanedithiol and thiourea.
7. The environmental protection aluminum alloy surface ash remover according to claim 1, wherein the chelating agent is one or more of disodium ethylenediamine tetraacetate, sodium polyphosphate and aminotriacetic acid.
8. The environmental protection aluminum alloy surface ash remover according to claim 1, characterized in that the anionic surfactant is one or more of sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate and sodium dodecyl sulfate.
9. An aluminum alloy surface ash removal method is characterized in that the ash removal treatment is carried out on the aluminum alloy after degreasing, alkali etching or chemical polishing by adopting the environment-friendly aluminum alloy surface ash removal agent according to any one of claims 1 to 8, wherein the ash removal temperature is 10-30 ℃, and the ash removal time is 5-180s.
10. The method for removing the ash from the surface of the aluminum alloy according to claim 9, wherein the ash removing treatment is to dip the aluminum alloy after degreasing, alkaline etching or chemical polishing through ash removing liquid, and the air treatment or the mechanical treatment is synchronously matched.
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