CN113621949A - Aluminum alloy surface treatment process - Google Patents
Aluminum alloy surface treatment process Download PDFInfo
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- CN113621949A CN113621949A CN202110740457.6A CN202110740457A CN113621949A CN 113621949 A CN113621949 A CN 113621949A CN 202110740457 A CN202110740457 A CN 202110740457A CN 113621949 A CN113621949 A CN 113621949A
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- concentration
- cleaning
- aluminum material
- material treated
- aluminum alloy
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 19
- 238000004381 surface treatment Methods 0.000 title claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000000243 solution Substances 0.000 claims abstract description 23
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007654 immersion Methods 0.000 claims abstract description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011259 mixed solution Substances 0.000 claims abstract description 17
- 238000005498 polishing Methods 0.000 claims abstract description 17
- 239000011701 zinc Substances 0.000 claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 17
- 238000007598 dipping method Methods 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 12
- 229960000583 acetic acid Drugs 0.000 claims abstract description 11
- 230000003213 activating effect Effects 0.000 claims abstract description 11
- 239000003513 alkali Substances 0.000 claims abstract description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 11
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 11
- 239000003960 organic solvent Substances 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 60
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 30
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 20
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 235000019441 ethanol Nutrition 0.000 claims description 15
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 10
- 239000005695 Ammonium acetate Substances 0.000 claims description 10
- 229940043376 ammonium acetate Drugs 0.000 claims description 10
- 235000019257 ammonium acetate Nutrition 0.000 claims description 10
- 239000003995 emulsifying agent Substances 0.000 claims description 10
- 235000006408 oxalic acid Nutrition 0.000 claims description 10
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 10
- 239000001488 sodium phosphate Substances 0.000 claims description 10
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 10
- 239000001433 sodium tartrate Substances 0.000 claims description 10
- 229960002167 sodium tartrate Drugs 0.000 claims description 10
- 235000011004 sodium tartrates Nutrition 0.000 claims description 10
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 10
- 239000011787 zinc oxide Substances 0.000 claims description 10
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 10
- 229960001763 zinc sulfate Drugs 0.000 claims description 10
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 10
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 229940083608 sodium hydroxide Drugs 0.000 claims description 5
- 229960001296 zinc oxide Drugs 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010959 steel 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
- C23F3/03—Light metals with acidic solutions
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
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)
- Inorganic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an aluminum alloy surface treatment process, which comprises the following steps: s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material; s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane; s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface; s4, activation: the aluminum material treated by the S3 is put into an acid activating solution for treatment to ensure the bonding force; s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution; s6, washing: cleaning the aluminum material treated by the S5; after the surface of the aluminum alloy material is treated by the process, the welding strength of the welding part is enhanced, so that the strength of the aluminum radiator is greatly improved, the process is convenient to process, the process flow has short consumption time, and the working efficiency is high.
Description
Technical Field
The invention belongs to the technical field of metal surface treatment processes, and particularly relates to an aluminum alloy surface treatment process.
Background
Aluminum and aluminum alloy have small density, high specific strength, good welding performance, easy processing and beautiful surface, and are the second most metal materials for industry at present, second to steel. The aluminum alloy has wide application in the fields of aerospace, food packaging, architectural decoration, electronic home appliances, transportation and the like. The battery radiator of the electric automobile is also generally made of aluminum alloy materials.
At present, aluminum radiators are widely regarded due to the obvious advantages of the aluminum radiators in light weight, copper radiators are gradually replaced in many fields, but after radiator parts made of aluminum alloy materials are welded, the connection strength of the radiator parts is different from that of the traditional copper welded parts.
Disclosure of Invention
The invention aims to: provides an aluminum alloy surface treatment process, aiming at solving the problems mentioned in the background technology.
The technical scheme adopted by the invention is as follows: an aluminum alloy surface treatment process comprises the following steps:
s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material;
s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane;
s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface;
s4, activation: the aluminum material treated by the S3 is put into an acid activating solution for treatment to ensure the bonding force;
s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution;
s6, washing: and cleaning the aluminum material treated in the step S5.
Preferably, the organic solvent used in the immersion cleaning process in the step S1 is alcohol, and the mixed solution in the cleaning process is prepared from sodium carbonate and an emulsifier, wherein the concentration of the sodium carbonate is 30-70 g/L, the concentration of the emulsifier is 1-10 g/L, and the temperature is controlled at 40-80 ℃ during cleaning.
Preferably, the volume ratio of the phosphoric acid to the glacial acetic acid in the step S2 is 5:3, and the temperature during the polishing treatment is controlled within the range of 80-110 ℃.
Preferably, the alkali solution in step S3 is prepared from sodium hydroxide and sodium phosphate, wherein the concentration of the sodium hydroxide is 10-40 g/L, and the concentration of the sodium phosphate is 10-40 g/L.
Preferably, the acidic activating solution in step S4 is prepared from oxalic acid, ammonium acetate and alcohol, wherein the concentration of oxalic acid is 50-100 g/L, the concentration of ammonium acetate is 50-100 g/L, and the concentration of alcohol is 20-80 g/L.
Preferably, the zinc immersion liquid in step S5 is prepared from zinc sulfate, sodium hydroxide, zinc oxide and sodium tartrate, wherein the concentration of zinc sulfate is 30-60 g/L, the concentration of sodium hydroxide is 100-200 g/L, the concentration of zinc oxide is 10-50 g/L, and the concentration of sodium tartrate is 10-50 g/L.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
after the surface of the aluminum alloy material is treated by the process, the welding strength of a welding part is enhanced, so that the strength of the aluminum radiator is greatly improved, the process is convenient to process, the process flow has short consumption time, and the working efficiency is high.
Detailed Description
Example 1
The specific steps of this example are as follows:
s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material; the organic solvent used in the immersion cleaning process is alcohol, the mixed solution in the cleaning process is prepared by sodium carbonate and an emulsifier, wherein the concentration of the sodium carbonate is 30g/L, the concentration of the emulsifier is 1g/L, and the temperature is controlled at 40 ℃ during cleaning;
s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane; the volume ratio of phosphoric acid to glacial acetic acid is 5:3, and the temperature is controlled within 80 ℃ during polishing treatment;
s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface; the alkali liquor is prepared from sodium hydroxide and sodium phosphate, wherein the concentration of the sodium hydroxide is 10g/L, and the concentration of the sodium phosphate is 10 g/L;
s4, activation: treating the aluminum material treated by the S3 in an acid activating solution; the acidic activating solution is prepared from oxalic acid, ammonium acetate and alcohol, wherein the concentration of the oxalic acid is 50g/L, the concentration of the ammonium acetate is 50g/L, and the concentration of the alcohol is 20g/L, so that the binding force is ensured;
s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution; the zinc dipping solution is prepared from zinc sulfate, sodium hydroxide, zinc oxide and sodium tartrate, wherein the concentration of the zinc sulfate is 30g/L, the concentration of the sodium hydroxide is 100g/L, the concentration of the zinc oxide is 10g/L, and the concentration of the sodium tartrate is 10 g/L;
s6, washing: the aluminum material treated in S5 was cleaned and washed with pure water.
Example 2
The specific steps of this example are as follows:
s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material; the organic solvent used in the immersion cleaning process is alcohol, the mixed solution in the cleaning process is prepared by sodium carbonate and an emulsifier, wherein the concentration of the sodium carbonate is 50g/L, the concentration of the emulsifier is 5g/L, and the temperature is controlled at 60 ℃ during cleaning;
s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane; the volume ratio of phosphoric acid to glacial acetic acid is 5:3, and the temperature is controlled within the range of 95 ℃ during polishing treatment;
s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface; the alkali liquor is prepared from sodium hydroxide and sodium phosphate, wherein the concentration of the sodium hydroxide is 25g/L, and the concentration of the sodium phosphate is 25 g/L;
s4, activation: treating the aluminum material treated by the S3 in an acid activating solution; the acidic activating solution is prepared from oxalic acid, ammonium acetate and alcohol, wherein the concentration of the oxalic acid is 75g/L, the concentration of the ammonium acetate is 75g/L, and the concentration of the alcohol is 50g/L, so that the binding force is ensured;
s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution; the zinc dipping solution is prepared from zinc sulfate, sodium hydroxide, zinc oxide and sodium tartrate, wherein the concentration of the zinc sulfate is 45g/L, the concentration of the sodium hydroxide is 150g/L, the concentration of the zinc oxide is 30g/L, and the concentration of the sodium tartrate is 30 g/L;
s6, washing: the aluminum material treated in S5 was cleaned and washed with pure water.
Example 3
The specific steps of this example are as follows:
s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material; the organic solvent used in the immersion cleaning process is alcohol, the mixed solution in the cleaning process is prepared by sodium carbonate and an emulsifier, wherein the concentration of the sodium carbonate is 70g/L, the concentration of the emulsifier is 10g/L, and the temperature is controlled at 80 ℃ during cleaning;
s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane; the volume ratio of phosphoric acid to glacial acetic acid is 5:3, and the temperature is controlled within 110 ℃ during polishing treatment;
s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface; the alkali liquor is prepared from sodium hydroxide and sodium phosphate, wherein the concentration of the sodium hydroxide is 40g/L, and the concentration of the sodium phosphate is 40 g/L;
s4, activation: treating the aluminum material treated by the S3 in an acid activating solution; the acidic activating solution is prepared from oxalic acid, ammonium acetate and alcohol, wherein the concentration of the oxalic acid is 100g/L, the concentration of the ammonium acetate is 100g/L, and the concentration of the alcohol is 80g/L, so that the binding force is ensured;
s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution; the zinc dipping solution is prepared from zinc sulfate, sodium hydroxide, zinc oxide and sodium tartrate, wherein the concentration of the zinc sulfate is 60g/L, the concentration of the sodium hydroxide is 200g/L, the concentration of the zinc oxide is 50g/L, and the concentration of the sodium tartrate is 50 g/L;
s6, washing: the aluminum material treated in S5 was cleaned and washed with pure water.
Claims (6)
1. The aluminum alloy surface treatment process is characterized by comprising the following steps of:
s1, immersion cleaning and washing: adopting an organic solvent for immersion cleaning, cleaning by using a mixed solution, and removing attachments such as oil stains and the like on the surface of the aluminum material;
s2, polishing: polishing the aluminum material treated by the S1 in a mixed solution of phosphoric acid and glacial acetic acid to obtain a smooth plane;
s3, oil removal: putting the aluminum material treated by the S2 in alkali liquor for oil removal treatment, and cleaning the surface;
s4, activation: the aluminum material treated by the S3 is put into an acid activating solution for treatment to ensure the bonding force;
s5, zinc dipping: soaking the aluminum material treated by the S4 in a zinc dipping solution;
s6, washing: and cleaning the aluminum material treated in the step S5.
2. The aluminum alloy surface treatment process according to claim 1, wherein the organic solvent used in the immersion cleaning process in the step S1 is alcohol, the mixed solution in the cleaning process is prepared from sodium carbonate and an emulsifier, wherein the concentration of the sodium carbonate is 30-70 g/L, the concentration of the emulsifier is 1-10 g/L, and the temperature during cleaning is controlled to be 40-80 ℃.
3. The aluminum alloy surface treatment process as recited in claim 1, wherein the volume ratio of phosphoric acid to glacial acetic acid in step S2 is 5:3, and the temperature during polishing is controlled within a range of 80 to 110 ℃.
4. The aluminum alloy surface treatment process of claim 1, wherein the alkali solution in step S3 is prepared from sodium hydroxide and sodium phosphate, wherein the concentration of sodium hydroxide is 10-40 g/L, and the concentration of sodium phosphate is 10-40 g/L.
5. The aluminum alloy surface treatment process of claim 1, wherein the acidic activating solution in step S4 is prepared from oxalic acid, ammonium acetate and alcohol, wherein the concentration of oxalic acid is 50-100 g/L, the concentration of ammonium acetate is 50-100 g/L, and the concentration of alcohol is 20-80 g/L.
6. The aluminum alloy surface treatment process of claim 1, wherein the zinc dipping solution in the step S5 is prepared from zinc sulfate, sodium hydroxide, zinc oxide and sodium tartrate, wherein the concentration of zinc sulfate is 30-60 g/L, the concentration of sodium hydroxide is 100-200 g/L, the concentration of zinc oxide is 10-50 g/L, and the concentration of sodium tartrate is 10-50 g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740457.6A CN113621949A (en) | 2021-06-30 | 2021-06-30 | Aluminum alloy surface treatment process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110740457.6A CN113621949A (en) | 2021-06-30 | 2021-06-30 | Aluminum alloy surface treatment process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089885A (en) * | 2001-09-14 | 2003-03-28 | Nippon Light Metal Co Ltd | Surface treatment method for aluminum material and surface treated aluminum material |
| CN103205744A (en) * | 2012-01-12 | 2013-07-17 | 江苏嘉和热***股份有限公司 | Novel surface treatment technology of aluminum alloy for radiator |
| CN103668192A (en) * | 2012-09-01 | 2014-03-26 | 无锡新大中薄板有限公司 | Four-element zinc-tin-nickel-iron soaking technique of aluminum alloy plate |
-
2021
- 2021-06-30 CN CN202110740457.6A patent/CN113621949A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089885A (en) * | 2001-09-14 | 2003-03-28 | Nippon Light Metal Co Ltd | Surface treatment method for aluminum material and surface treated aluminum material |
| CN103205744A (en) * | 2012-01-12 | 2013-07-17 | 江苏嘉和热***股份有限公司 | Novel surface treatment technology of aluminum alloy for radiator |
| CN103668192A (en) * | 2012-09-01 | 2014-03-26 | 无锡新大中薄板有限公司 | Four-element zinc-tin-nickel-iron soaking technique of aluminum alloy plate |
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Application publication date: 20211109 |