CN115505935B - Cleaning process before surface treatment of aluminum alloy profile - Google Patents
Cleaning process before surface treatment of aluminum alloy profile Download PDFInfo
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- CN115505935B CN115505935B CN202211322746.5A CN202211322746A CN115505935B CN 115505935 B CN115505935 B CN 115505935B CN 202211322746 A CN202211322746 A CN 202211322746A CN 115505935 B CN115505935 B CN 115505935B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 149
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004381 surface treatment Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000008213 purified water Substances 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 30
- 239000008367 deionised water Substances 0.000 claims description 24
- 229910021641 deionized water Inorganic materials 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 24
- 239000004115 Sodium Silicate Substances 0.000 claims description 21
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 21
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 21
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 20
- 239000002736 nonionic surfactant Substances 0.000 claims description 20
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 229960001922 sodium perborate Drugs 0.000 claims description 10
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004043 dyeing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 19
- 238000004040 coloring Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- 229960002233 benzalkonium bromide Drugs 0.000 description 1
- KHSLHYAUZSPBIU-UHFFFAOYSA-M benzododecinium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 KHSLHYAUZSPBIU-UHFFFAOYSA-M 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical class NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 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
- C23G1/125—Light metals aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
Abstract
The invention discloses a cleaning process before aluminum alloy profile surface treatment, and relates to the technical field of aluminum alloy profile surface treatment; the process flow is as follows: warm water cleaning, primary high-pressure water cleaning, oil stain cleaning, secondary high-pressure water cleaning, dirt cleaning, tertiary high-pressure water cleaning, purified water cleaning and drying; the method has the characteristics of good cleaning effect, easy post-dyeing, better adhesion and durability of a dyeing layer and the like, and is suitable for cleaning before the surface treatment of various industrial and civil aluminum alloy sections.
Description
Technical Field
The invention relates to the technical field of aluminum surface treatment, in particular to a cleaning process before aluminum alloy profile surface treatment.
Background
In the prior art, aluminum materials are widely used because of light weight, low cost, easy processing and forming, easy coloring and dyeing, and processing into various colors, and panels and profiles made of aluminum materials with various colors are appeared. Because aluminum materials are contaminated by various equipment during the production process, white spots, mold spots, greasy dirt and other stains are generated, and the stains must be thoroughly cleaned before surface treatment can be performed. At present, the surface of the aluminum alloy section is cleaned by adopting the steps of water washing, alkali washing and acid washing, and the process is simple, but the cleaning effect is poor, and the adhesion and durability of a later-stage dyeing layer are greatly influenced.
Chinese patent application (application publication number is CN 107216731A) "an aluminum alloy section surface treatment process", which comprises the following steps: (1) Cleaning the surface of the processed aluminum alloy section bar, and removing scraps and dirt on the surface of the section bar; the surface of the aluminum alloy is pretreated, and the process flow is as follows: deoiling, water rinsing, pickling, water rinsing and natural airing; (3) And (3) immersing the pretreated aluminum alloy profile in a surface treating agent for 3-10 min, and drying. The degreasing fluid comprises: 45-60 g/L trisodium phosphate, 50-70 g/L sodium carbonate, 5-10 g/L sodium silicate and 5-10 mL/L emulsifier; the surface treating agent comprises: 2-6 parts of polyvinyl butyral, 1-2 parts of benzalkonium bromide, 1-7 parts of polytetrafluoroethylene, 1-2 parts of bone charcoal, 0.1-5 parts of nano talcum powder, 1-3 parts of acrylic resin modified casein film forming agent and the like. The invention forms a uniform protective layer with good anti-corrosion, wear-resistant and high-temperature-resistant effects on the surface of the aluminum alloy section bar, and overcomes the defect that the aluminum alloy section bar cannot meet the engineering requirements caused by the prior art process.
Another chinese patent application (application publication No. CN112760690 a) "a surface treatment process before coloring a ground iron-aluminum alloy section bar", which includes the following steps: surface cleaning: placing the aluminum alloy section into clear water for ultrasonic cleaning to remove dirt and sundries on the surface; surface degreasing: oil removal is carried out on the aluminum alloy by utilizing an alkaline oil removal agent; rinsing with clear water for the first time: rinsing with clear water; surface pickling: carrying out acid cleaning on the aluminum alloy profile by using an acid solution; rinsing with clear water for the second time: rinsing with clear water; airing at normal temperature: the aluminum alloy surface can be prevented from blackening by naturally airing at normal temperature and by pre-coloring the aluminum alloy section, the flatness and smoothness of the aluminum alloy surface are improved, good oxidation color can be formed on the aluminum alloy surface, a good effect is achieved in later coating or spraying, and the treatment level of the aluminum alloy surface before coloring is improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cleaning process which has good cleaning effect, easy post-dyeing and better adhesion and durability of a dyed layer.
In order to solve the technical problems, the invention adopts the technical scheme that the cleaning process before the surface treatment of the aluminum alloy section is invented, and the process flow is as follows:
the method comprises the following steps of (1) cleaning with warm water:
immersing the aluminum alloy section with the surface subjected to wind blowing and cleaning treatment in warm water at 48-52 ℃ in a warm water cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 2-3min, taking out, and draining water for later use;
the high-pressure water is washd once:
the aluminum alloy section bar which is cleaned by warm water is overhead, is washed by clean water with the pressure of 2-4Mpa for 1-2 times, and is drained for standby;
cleaning oil stains:
immersing the aluminum alloy section subjected to primary high-pressure water cleaning in oil stain cleaning liquid at 35-40 ℃ in an oil stain cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 4-6min, taking out, and draining water for later use;
fourth, secondary high-pressure water cleaning:
the aluminum alloy section bar subjected to oil stain cleaning is overhead, is washed by clean water with the pressure of 3-5 Mpa for 1-2 times, and is drained for later use;
and (5) cleaning dirt:
immersing the aluminum alloy section subjected to secondary high-pressure water cleaning in a dirt cleaning solution at 55-65 ℃ in a dirt cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 4-6min, taking out, and draining water for later use;
sixth, cleaning with three times of high-pressure water:
the aluminum alloy section bar after being cleaned by dirt is overhead, is washed by clean water with the pressure of 3 to 5Mpa for 1 to 2 times, and is drained for standby;
washing:
overhead aluminum alloy sections subjected to three times of high-pressure water cleaning are washed by purified water with the pressure of 2-3Mpa for 1-2 times, and water is drained for later use;
and (3) performing:
and (3) placing the aluminum alloy section subjected to purified water cleaning in a drying chamber for overhead, introducing filtered air with the temperature of 60-70 ℃ for drying treatment, and obtaining the aluminum alloy section subjected to surface treatment after the moisture on the surface of the aluminum alloy section is completely disappeared.
The greasy dirt cleaning liquid comprises the following raw materials in parts by weight:
instant anhydrous sodium silicate: 10-15 sulfuric acid: 10-15
Nonionic surfactant: 600-800 peroxyacetic acid: 150-200
Deionized water: 18000-19000 parts.
The conductivity of deionized water is below 2 mu s/cm (25 ℃).
The preparation method of the greasy dirt cleaning liquid comprises the following steps: weighing deionized water according to the formula, adding instant anhydrous sodium silicate, sulfuric acid and peracetic acid under stirring, fully dispersing and dissolving for about 15-25min, standing for 1-3 hours, filtering, stirring the solution, adding a nonionic surfactant, and stirring uniformly.
The dirt cleaning liquid comprises the following raw materials in parts by weight:
instant anhydrous sodium silicate: 10-15 sodium hydroxide: 15-20
Nonionic surfactant: 600-800 sodium perborate: 120-180
Deionized water: 18000-19000 parts.
The preparation method of the dirt cleaning liquid comprises the following steps: weighing deionized water according to the formula, adding instant anhydrous sodium silicate, sodium hydroxide and sodium perborate in a stirring state, fully dispersing and dissolving for 18-28min, standing for 1-3 h, filtering, stirring the solution, adding a nonionic surfactant, and stirring uniformly.
The cleaning process before the surface treatment of the aluminum alloy section adopts the technical processes of warm water cleaning, primary high-pressure water cleaning, greasy dirt cleaning, secondary high-pressure water cleaning, dirt cleaning, tertiary high-pressure water cleaning, pure water cleaning and medium-temperature drying, and particularly adopts unique greasy dirt cleaning liquid and dirt cleaning liquid, so that the surface of the aluminum alloy section after cleaning is easier to dye and color, and the dyed dyeing layer has stronger adhesive force and better durability.
Detailed Description
The invention is further illustrated by the following examples. The following description is by way of example only, and the scope of the invention should not be limited thereto.
Example 1:
the cleaning process before the surface treatment of the aluminum alloy section bar in the embodiment comprises the following specific process flows:
(1) Preparing a cleaning solution:
preparing oil stain cleaning liquid:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 10. sulfuric acid: 10
Nonionic surfactant: 800. peroxyacetic acid: 200
Deionized water: 18000 parts of a powder for injection,
the conductivity of deionized water is below 2 mu s/cm (25 ℃).
The preparation method comprises the following steps: under the stirring state, sequentially adding the instant anhydrous sodium silicate, sulfuric acid and peracetic acid into deionized water, fully dispersing and dissolving for about 20min, standing for 2 hours, filtering, stirring the solution, adding the nonionic surfactant, and uniformly stirring to obtain the greasy dirt cleaning liquid.
Preparing a sewage cleaning solution:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 10. sodium hydroxide: 15
Nonionic surfactant: 800. sodium perborate: 180
Deionized water: 18000 parts.
The preparation method comprises the following steps: under the stirring state, respectively adding instant anhydrous sodium silicate, sodium hydroxide and sodium perborate into deionized water, fully dispersing and dissolving for about 25min, standing for 2 hours, filtering, stirring the solution, adding a nonionic surfactant, and uniformly stirring to obtain the dirt cleaning liquid.
(2) And (3) cleaning:
the method comprises the following steps of (1) cleaning with warm water:
immersing the aluminum alloy section with the surface subjected to wind blowing and cleaning treatment in warm water at 50 ℃ in a warm water cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 3min, taking out, and draining off water for later use;
the high-pressure water is washd once:
the aluminum alloy section bar which is cleaned by warm water is overhead, is washed by clean water with the pressure of 3Mpa for 1 time, and is drained for standby;
cleaning oil stains:
immersing the aluminum alloy section subjected to primary high-pressure water cleaning in oil stain cleaning liquid at 38 ℃ in an oil stain cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
fourth, secondary high-pressure water cleaning:
the aluminum alloy section bar subjected to oil stain cleaning is overhead, is washed 1 time by clean water with the pressure of 4Mpa, and is drained for standby;
and (5) cleaning dirt:
immersing the aluminum alloy section subjected to secondary high-pressure water cleaning in a 60 ℃ dirt cleaning solution in a dirt cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
sixth, cleaning with three times of high-pressure water:
the aluminum alloy section bar after being cleaned by dirt is overhead, is washed by clear water with the pressure of 4Mpa for 2 times, and is drained for standby;
washing:
the aluminum alloy section bar after three times of high-pressure water cleaning is overhead, is washed for 2 times by purified water with the pressure of 3Mpa, and is drained for standby;
and (3) performing:
and (3) placing the aluminum alloy section subjected to purified water cleaning in a drying chamber for overhead, introducing filtered air with the temperature of 65 ℃ for drying treatment, and obtaining the aluminum alloy section subjected to surface treatment after the moisture on the surface of the aluminum alloy section is completely disappeared, wherein the aluminum alloy section subjected to cleaning can enter the next step of anodic oxidation or electrophoresis or coloring treatment.
Example 2:
the cleaning process before the surface treatment of the aluminum alloy section bar in the embodiment comprises the following specific process flows:
(1) Preparing a cleaning solution:
preparing oil stain cleaning liquid:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 15. sulfuric acid: 15
Nonionic surfactant: 600. peroxyacetic acid: 150
Deionized water: 19000 parts of a powder of a mixture of two or more,
the conductivity of deionized water is below 2 mu s/cm (25 ℃).
The preparation method comprises the following steps: under the stirring state, sequentially adding the instant anhydrous sodium silicate, sulfuric acid and peracetic acid into deionized water, fully dispersing and dissolving for about 20min, standing for 2 hours, filtering, stirring the solution, adding the nonionic surfactant, and uniformly stirring to obtain the greasy dirt cleaning liquid.
Preparing a sewage cleaning solution:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 15. sodium hydroxide: 20
Nonionic surfactant: 600. sodium perborate: 120
Deionized water: 19000 parts.
The preparation method comprises the following steps: under the stirring state, respectively adding instant anhydrous sodium silicate, sodium hydroxide and sodium perborate into deionized water, fully dispersing and dissolving for about 25min, standing for 2 hours, filtering, stirring the solution, adding a nonionic surfactant, and uniformly stirring to obtain the dirt cleaning liquid.
(2) And (3) cleaning:
the method comprises the following steps of (1) cleaning with warm water:
immersing the aluminum alloy section with the surface subjected to wind blowing and cleaning treatment in warm water at 50 ℃ in a warm water cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 3min, taking out, and draining off water for later use;
the high-pressure water is washd once:
the aluminum alloy section bar which is cleaned by warm water is overhead, is washed by clean water with the pressure of 3Mpa for 1 time, and is drained for standby;
cleaning oil stains:
immersing the aluminum alloy section subjected to primary high-pressure water cleaning in oil stain cleaning liquid at 38 ℃ in an oil stain cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
fourth, secondary high-pressure water cleaning:
the aluminum alloy section bar subjected to oil stain cleaning is overhead, is washed 1 time by clean water with the pressure of 4Mpa, and is drained for standby;
and (5) cleaning dirt:
immersing the aluminum alloy section subjected to secondary high-pressure water cleaning in a 60 ℃ dirt cleaning solution in a dirt cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
sixth, cleaning with three times of high-pressure water:
the aluminum alloy section bar after being cleaned by dirt is overhead, is washed by clear water with the pressure of 4Mpa for 2 times, and is drained for standby;
washing:
the aluminum alloy section bar after three times of high-pressure water cleaning is overhead, is washed for 2 times by purified water with the pressure of 3Mpa, and is drained for standby;
and (3) performing:
and (3) placing the aluminum alloy section subjected to purified water cleaning in a drying chamber for overhead, introducing filtered air with the temperature of 65 ℃ for drying treatment, and obtaining the aluminum alloy section subjected to surface treatment after the moisture on the surface of the aluminum alloy section is completely disappeared, wherein the aluminum alloy section subjected to cleaning can enter the next step of anodic oxidation or electrophoresis or coloring treatment.
Example 3:
the cleaning process before the surface treatment of the aluminum alloy section bar in the embodiment comprises the following specific process flows:
(1) Preparing a cleaning solution:
preparing oil stain cleaning liquid:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 12. sulfuric acid: 12
Nonionic surfactant: 700. peroxyacetic acid: 180
Deionized water: 18500,
the conductivity of deionized water is below 2 mu s/cm (25 ℃).
The preparation method comprises the following steps: under the stirring state, sequentially adding the instant anhydrous sodium silicate, sulfuric acid and peracetic acid into deionized water, fully dispersing and dissolving for about 20min, standing for 2 hours, filtering, stirring the solution, adding the nonionic surfactant, and uniformly stirring to obtain the greasy dirt cleaning liquid.
Preparing a sewage cleaning solution:
the following raw materials are respectively weighed according to parts by weight:
instant anhydrous sodium silicate: 12. sodium hydroxide: 18
Nonionic surfactant: 700. sodium perborate: 150
Deionized water: 18500 parts.
The preparation method comprises the following steps: under the stirring state, respectively adding instant anhydrous sodium silicate, sodium hydroxide and sodium perborate into deionized water, fully dispersing and dissolving for about 25min, standing for 2 hours, filtering, stirring the solution, adding a nonionic surfactant, and uniformly stirring to obtain the dirt cleaning liquid.
(2) And (3) cleaning:
the method comprises the following steps of (1) cleaning with warm water:
immersing the aluminum alloy section with the surface subjected to wind blowing and cleaning treatment in warm water at 50 ℃ in a warm water cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 3min, taking out, and draining off water for later use;
the high-pressure water is washd once:
the aluminum alloy section bar which is cleaned by warm water is overhead, is washed by clean water with the pressure of 3Mpa for 1 time, and is drained for standby;
cleaning oil stains:
immersing the aluminum alloy section subjected to primary high-pressure water cleaning in oil stain cleaning liquid at 38 ℃ in an oil stain cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
fourth, secondary high-pressure water cleaning:
the aluminum alloy section bar subjected to oil stain cleaning is overhead, is washed 1 time by clean water with the pressure of 4Mpa, and is drained for standby;
and (5) cleaning dirt:
immersing the aluminum alloy section subjected to secondary high-pressure water cleaning in a 60 ℃ dirt cleaning solution in a dirt cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 5min, taking out, and draining off water for later use;
sixth, cleaning with three times of high-pressure water:
the aluminum alloy section bar after being cleaned by dirt is overhead, is washed by clear water with the pressure of 4Mpa for 2 times, and is drained for standby;
washing:
the aluminum alloy section bar after three times of high-pressure water cleaning is overhead, is washed for 2 times by purified water with the pressure of 3Mpa, and is drained for standby;
and (3) performing:
and (3) placing the aluminum alloy section subjected to purified water cleaning in a drying chamber for overhead, introducing filtered air with the temperature of 65 ℃ for drying treatment, and obtaining the aluminum alloy section subjected to surface treatment after the moisture on the surface of the aluminum alloy section is completely disappeared, wherein the aluminum alloy section subjected to cleaning can enter the next step of anodic oxidation or electrophoresis or coloring treatment.
The cleaning process before the surface treatment of the aluminum alloy section is suitable for cleaning various industrial and civil aluminum alloy sections before the surface treatment.
Claims (3)
1. The cleaning process before the surface treatment of the aluminum alloy profile is characterized by comprising the following steps of:
the method comprises the following steps of (1) cleaning with warm water:
immersing the aluminum alloy section with the surface subjected to wind blowing and cleaning treatment in warm water at 48-52 ℃ in a warm water cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 2-3min, taking out, and draining water for later use;
the high-pressure water is washd once:
the aluminum alloy section bar which is cleaned by warm water is overhead, is washed by clean water with the pressure of 2-4Mpa for 1-2 times, and is drained for standby;
cleaning oil stains:
immersing the aluminum alloy section subjected to primary high-pressure water cleaning in oil stain cleaning liquid at 35-40 ℃ in an oil stain cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 4-6min, taking out, and draining water for later use;
fourth, secondary high-pressure water cleaning:
the aluminum alloy section bar subjected to oil stain cleaning is overhead, is washed by clean water with the pressure of 3-5 mpa for 1-2 times, and is drained for later use;
and (5) cleaning dirt:
immersing the aluminum alloy section subjected to secondary high-pressure water cleaning in a dirt cleaning solution at 55-65 ℃ in a dirt cleaning tank, starting an ultrasonic generator at the bottom in the tank, performing ultrasonic cleaning for 4-6min, taking out, and draining water for later use;
sixth, cleaning with three times of high-pressure water:
the aluminum alloy section bar subjected to dirt cleaning is overhead, is washed by clean water with the pressure of 3-5 mpa for 1-2 times, and is drained for later use;
washing:
overhead aluminum alloy sections subjected to three times of high-pressure water cleaning are washed by purified water with the pressure of 2-3Mpa for 1-2 times, and water is drained for later use;
and (3) performing:
placing the aluminum alloy section subjected to purified water cleaning in a drying chamber for overhead, introducing filtered air with the temperature of 60-70 ℃ for drying treatment, and obtaining the aluminum alloy section to be subjected to surface treatment after the moisture on the surface of the aluminum alloy section is completely disappeared;
the greasy dirt cleaning liquid comprises the following raw materials in parts by weight:
instant anhydrous sodium silicate: 10-15 sulfuric acid: 10-15
Nonionic surfactant: 600-800 peroxyacetic acid: 150-200
Deionized water: 18000-19000 parts;
the dirt cleaning liquid comprises the following raw materials in parts by weight:
instant anhydrous sodium silicate: 10-15 sodium hydroxide: 15-20
Nonionic surfactant: 600-800 sodium perborate: 120-180
Deionized water: 18000-19000 parts.
2. The cleaning process before surface treatment of the aluminum alloy profile according to claim 1, wherein the preparation method of the oil stain cleaning liquid is as follows: weighing deionized water according to the formula, adding instant anhydrous sodium silicate, sulfuric acid and peracetic acid under stirring, fully dispersing and dissolving for 15-25min, standing for 1-3 hours, filtering, stirring the solution, adding a nonionic surfactant, and uniformly stirring.
3. The cleaning process before surface treatment of the aluminum alloy profile according to claim 1, wherein the preparation method of the dirt cleaning liquid comprises the following steps: weighing deionized water according to the formula, adding instant anhydrous sodium silicate, sodium hydroxide and sodium perborate under stirring, fully dispersing and dissolving for 18-28min, standing for 1-3 hours, filtering, stirring the solution, adding nonionic surfactant, and stirring uniformly.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU872600A1 (en) * | 1979-07-09 | 1981-10-15 | Предприятие П/Я Г-4807 | Method of cleaning surface of aluminium and its alloys |
| US5382295A (en) * | 1990-11-20 | 1995-01-17 | Henkel Corporation | Method for cleaning aluminum and aluminum alloys |
| JPH07188956A (en) * | 1993-12-27 | 1995-07-25 | Sumitomo Light Metal Ind Ltd | Surface treatment of mg-containing aluminum alloy sheet for automobile body |
| WO2003097258A1 (en) * | 2002-05-20 | 2003-11-27 | Matsushita Electric Industrial Co., Ltd. | Washing method and washing device |
| CN101376985A (en) * | 2007-08-31 | 2009-03-04 | 深圳富泰宏精密工业有限公司 | Aluminum product cleaning process |
| CN101643912A (en) * | 2009-09-01 | 2010-02-10 | 永州皓志稀土材料有限公司 | Aluminum material cleaning agent and preparing method thereof |
| CN105814181A (en) * | 2013-10-29 | 2016-07-27 | 艺康美国股份有限公司 | Use of amino carboxylate for enhancing metal protection in alkaline detergents |
| CN106011715A (en) * | 2016-06-23 | 2016-10-12 | 巢湖鹏远金属焊管有限公司 | Pretreatment method for oxygen blowing welded pipe before welded pipe aluminizing processing |
| CN113549925A (en) * | 2021-07-22 | 2021-10-26 | 西安诚惠金属材料保护有限公司 | Brazing aluminum piece cleaning process |
-
2022
- 2022-10-27 CN CN202211322746.5A patent/CN115505935B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU872600A1 (en) * | 1979-07-09 | 1981-10-15 | Предприятие П/Я Г-4807 | Method of cleaning surface of aluminium and its alloys |
| US5382295A (en) * | 1990-11-20 | 1995-01-17 | Henkel Corporation | Method for cleaning aluminum and aluminum alloys |
| JPH07188956A (en) * | 1993-12-27 | 1995-07-25 | Sumitomo Light Metal Ind Ltd | Surface treatment of mg-containing aluminum alloy sheet for automobile body |
| WO2003097258A1 (en) * | 2002-05-20 | 2003-11-27 | Matsushita Electric Industrial Co., Ltd. | Washing method and washing device |
| CN101376985A (en) * | 2007-08-31 | 2009-03-04 | 深圳富泰宏精密工业有限公司 | Aluminum product cleaning process |
| CN101643912A (en) * | 2009-09-01 | 2010-02-10 | 永州皓志稀土材料有限公司 | Aluminum material cleaning agent and preparing method thereof |
| CN105814181A (en) * | 2013-10-29 | 2016-07-27 | 艺康美国股份有限公司 | Use of amino carboxylate for enhancing metal protection in alkaline detergents |
| CN106011715A (en) * | 2016-06-23 | 2016-10-12 | 巢湖鹏远金属焊管有限公司 | Pretreatment method for oxygen blowing welded pipe before welded pipe aluminizing processing |
| CN113549925A (en) * | 2021-07-22 | 2021-10-26 | 西安诚惠金属材料保护有限公司 | Brazing aluminum piece cleaning process |
Non-Patent Citations (1)
| Title |
|---|
| 祁鲁梁等.《工业用水与节水管理知识问答》.北京：中国石化出版社,2003,第109页. * |
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