CN105908204B - A kind of aluminum fuel tank surface anticorrosive treatment technology - Google Patents
A kind of aluminum fuel tank surface anticorrosive treatment technology Download PDFInfo
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- CN105908204B CN105908204B CN201610472327.8A CN201610472327A CN105908204B CN 105908204 B CN105908204 B CN 105908204B CN 201610472327 A CN201610472327 A CN 201610472327A CN 105908204 B CN105908204 B CN 105908204B
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
-
- 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
- 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
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
-
- 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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
- B05D2350/50—Smoothing
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a kind of aluminum fuel tank surface anticorrosive treatment technologies, this method is by series of process such as oil removing, polishing, anodic oxidation, closing, roller coating, oxidation film is formed on aluminum fuel tank surface, oxidation film densification and ideal thickness, also there is good compatibility with coating.Coating bonds closely with tank surface, and intensity is good, wear-resistant, and decoration, protective effect well can be played to fuel tank outer wall.Technical solution of the present invention operability is strong, at low cost, especially suitable for producing the anticorrosion operation of aluminum fuel tank in enormous quantities.
Description
Technical field
The present invention relates to a kind of fuel tank anticorrosion techniques, more particularly, to a kind of aluminum fuel tank surface anticorrosive skill
Art.
Background technology
The rust resistance and corrosion resistance of steel fuel tank is a very common problem, and China's oil quality is not high, is mingled in oil
The impurity such as steam can generate it long-term corrosion, and the iron rust generated after corrosion is unfavorable to engine, influence the power of automobile.Aluminium
Not only intensity can satisfy the use demand alloy fuel tank, corrosion resistant characteristic be even more far superior to steel fuel tank, currently, 80% with
On heavy truck, car, multi-function vehicle used aluminum fuel tank, it can gradually replace steel fuel tank, the master of occuping market
Lead status.
Its main component of aluminum fuel tank is aluminium alloy, and aluminium and its alloy can generate a thin layer of oxygen naturally in an atmosphere
Change film, but this layer of oxidation film is loose porous, thickness is very uneven, and also discontinuously, anti-corrosion effects are undesirable.Fuel tank is direct
It is exposed in atmospheric environment, corrosion factor is more, therefore, it is necessary to carry out reliable anti-corrosion treatment to aluminum fuel tank appearance, increases
Strong its weatherability, corrosion resistance, can adapt to various severe external environments.It is directed at the surface anticorrosive of aluminium alloy at present
There are many reason means, but the processing method for being specific to aluminum fuel tank is also fewer, effect is also not satisfactory.
Invention content
The object of the present invention is to provide a kind of aluminum fuel tank surface anticorrosive treatment technologies, to improve existing aluminum fuel oil
The technical problems such as case process for treating surface is less, process for treating surface means are less reliable, anti-corrosion effects are undesirable.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of aluminum fuel tank surface anticorrosive
Treatment technology includes the following steps:
S1 oil removings：It will wait for that the fuel tank of oil removing enters by 2-4 parts of parts by weight sodium carbonate, 1-2 parts of sodium bicarbonate, sodium metasilicate 1-
2 parts, embathe in the alkalescent degreaser that is formulated of 2-3 parts of sodium phosphate, 1-2 parts of surfactant, 90-100 parts of deionized water
10-20min waits for that oil removing finishes, and tank surface is rinsed with clear water, drains water stain, 50-60 DEG C of drying 20-25min, until fuel tank
It is completely dried；
S2 chemical polishings：By aluminum fuel tank lock upper end cover, 3-5min in polishing fluid is immersed, fuel tank is then taken out, cleaned
After drain water stain, 50-60 DEG C of drying 20-25min, until fuel tank is completely dried；Polishing fluid is by 80-96 parts of phosphoric acid, sulfuric acid 32-
56 parts, 12-15 parts of hydrofluoric acid, 32-48 parts of nitric acid, 15-25 parts of sodium carbonate mixes for 800-900 parts with deionized water；
S3 anodic oxidations：Fuel tank is immersed by 35-50 parts of sulfuric acid, 5-8 parts of boric acid, 0.5-1.5 parts of oxalic acid, glycerine 0.3-
0.5 part, anodic oxidation is carried out in 950-980 parts of solution being formulated of deionized water, maintains 30 ± 1 DEG C of solution temperature, electric current
Density 0.3-0.6Adm-2, voltage 15-18V, anodizing time 25-50min；After anodic oxidation, with cold water wash 1-
3min；
S4 oxidation films are closed：Fuel tank is positioned in 90-95 DEG C of deionized water and carries out hydration reaction, control pH value is
5.5-6.5 off-period 20-36min；After closing, 20-25min is dried in 50-60 DEG C, until fuel tank is completely dried
S5 roller coating：By 12-16 parts of organic siliconresin, 42-56 parts of Polyamide Epoxy, 5-8 parts of fluorocarbon resin, nanogold
Coating is made after belonging to 0.5-1 parts of 10-12 parts of oxide, curing agent mixing, adds ethyl alcohol to dilute 1-2 times, then roller coating is in gas tank gage
Fuel tank is toasted 15-20min after each roller coating by face, roller coating 2 times in 120-150 DEG C, until coating is fully cured.
Preferably, the nano-metal-oxide is in nano zine oxide, nano-titanium dioxide, nano-aluminium oxide
One kind.
The present invention is by series of process such as oil removing, polishing, anodic oxidation, closing, roller coating, in aluminum fuel tank surface shape
At oxidation film, oxidation film densification and ideal thickness also have good compatibility with coating.Coating is viscous with tank surface
It is bolted close, intensity is good, wear-resistant, and decoration, protective effect well can be played to fuel tank outer wall.Technical solution of the present invention is operable
Property it is strong, it is at low cost, especially suitable for produce in enormous quantities aluminum fuel tank anticorrosion operation.
Specific implementation mode
The technical solution in the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
The every other embodiment that those of ordinary skill is obtained without making creative work, belongs to protection of the present invention
Range.
Embodiment 1：A kind of aluminum fuel tank surface anticorrosive treatment technology, includes the following steps:
A1 oil removings：It will wait for that the fuel tank of oil removing enters by 2 parts of parts by weight sodium carbonate, 1 part of sodium bicarbonate, 1 part of sodium metasilicate, phosphorus
10min is embathed in the alkalescent degreaser that 2 parts of sour sodium, 1 part of surfactant, 90 parts of deionized water are formulated, waits for that oil removing is complete
Finish, tank surface is rinsed with clear water, drains water stain, 50 DEG C of drying 25min, until fuel tank is completely dried；
A2 chemical polishings：By aluminum fuel tank lock upper end cover, 3min in polishing fluid is immersed, fuel tank is then taken out, after cleaning
Drain water stain, 50 DEG C of drying 25min, until fuel tank is completely dried；Polishing fluid is by 80 parts of phosphoric acid, 32 parts of sulfuric acid, hydrofluoric acid 12
Part, 32 parts of nitric acid, 15 parts of sodium carbonate mix for 800 parts with deionized water；
A3 anodic oxidations：Fuel tank is immersed by 35 parts of sulfuric acid, 5 parts of boric acid, 0.5 part of oxalic acid, 0.3 part of glycerine, deionized water
Anodic oxidation is carried out in 950 parts of solution being formulated, and maintains 30 ± 1 DEG C of solution temperature, current density 0.3Adm-2, voltage
15V, anodizing time 25min；After anodic oxidation, with cold water wash 1min；
A4 oxidation films are closed：Fuel tank is positioned in 90 DEG C of deionized water and carries out hydration reaction, control pH value is 5.5,
Off-period 20min；After closing, 25min is dried in 50 DEG C, until fuel tank is completely dried
A5 roller coating：By 12 parts of organic siliconresin, 42 parts of Polyamide Epoxy, 5 parts of fluorocarbon resin, nano zine oxide 10
Coating is made after 0.5 part of part, curing agent mixing, adds ethyl alcohol to dilute 1 times, then roller coating is in tank surface, roller coating 2 times, each roller
Fuel tank is toasted into 20min in 120 DEG C after painting, until coating is fully cured.
Embodiment 2：A kind of aluminum fuel tank surface anticorrosive treatment technology, includes the following steps:
B1 oil removings：It will wait for that the fuel tank of oil removing enters by 3 parts of parts by weight sodium carbonate, 1.5 parts of sodium bicarbonate, sodium metasilicate 1.5
15min is embathed in the alkalescent degreaser that part, 2.5 parts of sodium phosphate, 1.5 parts of surfactant, 95 parts of deionized water are formulated,
It waits for that oil removing finishes, tank surface is rinsed with clear water, drain water stain, 55 DEG C of drying 25min, until fuel tank is completely dried；
B2 chemical polishings：By aluminum fuel tank lock upper end cover, 4min in polishing fluid is immersed, fuel tank is then taken out, after cleaning
Drain water stain, 55 DEG C of drying 20min, until fuel tank is completely dried；Polishing fluid is by 89 parts of phosphoric acid, 45 parts of sulfuric acid, hydrofluoric acid 13
Part, 40 parts of nitric acid, 20 parts of sodium carbonate mix for 850 parts with deionized water；
B3 anodic oxidations：Fuel tank is immersed by 42 parts of sulfuric acid, 6 parts of boric acid, 1 part of oxalic acid, 0.4 part of glycerine, deionized water 965
Anodic oxidation is carried out in the solution that part is formulated, and maintains 30 ± 1 DEG C of solution temperature, current density 0.4Adm-2, voltage 17V,
Anodizing time is 35min；After anodic oxidation, with cold water wash 3min；
B4 oxidation films are closed：Fuel tank is positioned in 95 DEG C of deionized water and carries out hydration reaction, control pH value is 6.0,
Off-period 25min；After closing, 25min is dried in 55 DEG C, until fuel tank is completely dried
B5 roller coating：By 14 parts of organic siliconresin, 50 parts of Polyamide Epoxy, 6.5 parts of fluorocarbon resin, nano-titanium dioxide
10 parts, coating is made after the mixing of 0.6 part of curing agent, add ethyl alcohol to dilute 1.5 times, then roller coating is in tank surface, roller coating 2 times, often
Fuel tank is toasted into 18min in 135 DEG C after secondary roller coating, until coating is fully cured.
Embodiment 3：A kind of aluminum fuel tank surface anticorrosive treatment technology, includes the following steps:
C1 oil removings：It will wait for that the fuel tank of oil removing enters by 4 parts of parts by weight sodium carbonate, 2 parts of sodium bicarbonate, 2 parts of sodium metasilicate, phosphorus
20min is embathed in the alkalescent degreaser that 3 parts of sour sodium, 2 parts of surfactant, 100 parts of deionized water are formulated, waits for that oil removing is complete
Finish, tank surface is rinsed with clear water, drains water stain, 60 DEG C of drying 20min, until fuel tank is completely dried；
C2 chemical polishings：By aluminum fuel tank lock upper end cover, 5min in polishing fluid is immersed, fuel tank is then taken out, after cleaning
Drain water stain, 60 DEG C of drying 20min, until fuel tank is completely dried；Polishing fluid is by 6 parts of phosphatase 79,56 parts of sulfuric acid, hydrofluoric acid 15
Part, 48 parts of nitric acid, 25 parts of sodium carbonate mix for 900 parts with deionized water；
C3 anodic oxidations：Fuel tank is immersed by 50 parts of sulfuric acid, 8 parts of boric acid, 1.5 parts of oxalic acid, 0.5 part of glycerine, deionized water
Anodic oxidation is carried out in 980 parts of solution being formulated, and maintains 30 ± 1 DEG C of solution temperature, current density 0.6Adm-2, voltage
18V, anodizing time 50min；After anodic oxidation, with cold water wash 3min；
C4 oxidation films are closed：Fuel tank is positioned in 95 DEG C of deionized water and carries out hydration reaction, control pH value is 6.5,
Off-period 36min；After closing, 20min is dried in 60 DEG C, until fuel tank is completely dried
C5 roller coating：By 16 parts of organic siliconresin, 56 parts of Polyamide Epoxy, 8 parts of fluorocarbon resin, nano-aluminium oxide
12 parts, coating is made after the mixing of 1 part of curing agent, add ethyl alcohol to dilute 2 times, then roller coating is in tank surface, roller coating 2 times, each roller
Fuel tank is toasted into 15min in 150 DEG C after painting, until coating is fully cured.
Finally it is pointed out that the above specific implementation mode is only the more representational example of the present invention.Obviously, of the invention
It is not limited to above-mentioned specific implementation mode, acceptable there are many deformations.It is every according to the technical essence of the invention to above specific real
Any simple modification, equivalent change and modification made by mode are applied, are considered as belonging to the scope of protection of the present invention.
Claims (2)
1. a kind of aluminum fuel tank surface anticorrosive treatment technology, it is characterized in that the treatment technology includes the following steps:
S1 oil removings：Will wait for oil removing fuel tank enter by 2-4 parts of parts by weight sodium carbonate, 1-2 parts of sodium bicarbonate, 1-2 parts of sodium metasilicate,
10- is embathed in the alkalescent degreaser that 2-3 parts of sodium phosphate, 1-2 parts of surfactant, 90-100 parts of deionized water are formulated
20min waits for that oil removing finishes, and tank surface is rinsed with clear water, drains water stain, 50-60 DEG C of drying 20-25min, until fuel tank is complete
It is dry；
S2 chemical polishings：By aluminum fuel tank lock upper end cover, 3-5min in polishing fluid is immersed, fuel tank is then taken out, is dripped after cleaning
Dry water stains, 50-60 DEG C of drying 20-25min, until fuel tank is completely dried；Polishing fluid is by 80-96 parts of phosphoric acid, sulfuric acid 32-56
Part, 12-15 parts of hydrofluoric acid, 32-48 parts of nitric acid, 15-25 parts of sodium carbonate mix for 800-900 parts with deionized water；
S3 anodic oxidations：Fuel tank is immersed by 35-50 parts of sulfuric acid, 5-8 parts of boric acid, 0.5-1.5 parts of oxalic acid, 0.3-0.5 parts of glycerine,
Anodic oxidation is carried out in 950-980 parts of solution being formulated of deionized water, maintains 30 ± 1 DEG C of solution temperature, current density
0.3-0.6A·dm-2, voltage 15-18V, anodizing time 25-50min；After anodic oxidation, with cold water wash 1-3min；
S4 oxidation films are closed：Fuel tank is positioned in 90-95 DEG C of deionized water and carries out hydration reaction, control pH value is 5.5-
6.5, off-period 20-36min；After closing, 20-25min is dried in 50-60 DEG C, until fuel tank is completely dried
S5 roller coating：By 12-16 parts of organic siliconresin, 42-56 parts of Polyamide Epoxy, 5-8 parts of fluorocarbon resin, nano metal oxygen
Coating is made after 0.5-1 parts of 10-12 parts of compound, curing agent mixing, adds ethyl alcohol to dilute 1-2 times, then roller coating is in tank surface, roller
It applies 2 times, fuel tank is toasted into 15-20min in 120-150 DEG C after each roller coating, until coating is fully cured.
2. aluminum fuel tank surface anticorrosive treatment technology according to claim 1, it is characterized in that the nano metal oxygen
Compound is one kind in nano zine oxide, nano-titanium dioxide, nano-aluminium oxide.
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| CN201610472327.8A CN105908204B (en) | 2016-06-23 | 2016-06-23 | A kind of aluminum fuel tank surface anticorrosive treatment technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2821966C1 (en) * | 2024-01-22 | 2024-06-28 | Общество с ограниченной ответственностью "Разум" | Method of increasing corrosion resistance of anodised aluminium sheet intended for laser engraving |
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| CN106757094B (en) * | 2016-12-07 | 2019-08-09 | 江西瑞思博化工有限公司 | Aluminum mobile phone battery cover whitens agent and preparation method thereof |
| CN106637339A (en) * | 2017-01-12 | 2017-05-10 | 玉林师范学院 | Preparation process of aluminum alloy having high bonding strength anode oxide film |
| CN107460519A (en) * | 2017-07-04 | 2017-12-12 | 泰州亚泰金属有限公司 | A kind of process of surface treatment of aluminum products |
| CN108728880A (en) * | 2018-06-13 | 2018-11-02 | 江苏润城节能科技有限公司 | A kind of production technology of abrasion-resistance aluminum alloy door and window |
| CN114381777A (en) * | 2021-12-20 | 2022-04-22 | 佛山泰铝新材料有限公司 | Aluminum alloy anodic oxidation composite sealing method |
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| CN102716849A (en) * | 2012-06-01 | 2012-10-10 | 中国科学院金属研究所 | Protection method applied to aluminum alloy in vanadium battery solution |
| CN103628114A (en) * | 2013-12-13 | 2014-03-12 | 太原工业学院 | Surface treatment method of magnesium aluminum alloy |
| CN105506706A (en) * | 2016-01-04 | 2016-04-20 | 沈阳建筑大学 | Aluminum alloy anodizing coloring treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716849A (en) * | 2012-06-01 | 2012-10-10 | 中国科学院金属研究所 | Protection method applied to aluminum alloy in vanadium battery solution |
| CN103628114A (en) * | 2013-12-13 | 2014-03-12 | 太原工业学院 | Surface treatment method of magnesium aluminum alloy |
| CN105506706A (en) * | 2016-01-04 | 2016-04-20 | 沈阳建筑大学 | Aluminum alloy anodizing coloring treatment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2821966C1 (en) * | 2024-01-22 | 2024-06-28 | Общество с ограниченной ответственностью "Разум" | Method of increasing corrosion resistance of anodised aluminium sheet intended for laser engraving |
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