CN107794558A - Aluminum alloy surface color method and its products formed - Google Patents
Aluminum alloy surface color method and its products formed Download PDFInfo
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- CN107794558A CN107794558A CN201610780547.7A CN201610780547A CN107794558A CN 107794558 A CN107794558 A CN 107794558A CN 201610780547 A CN201610780547 A CN 201610780547A CN 107794558 A CN107794558 A CN 107794558A
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- aluminum alloy
- aluminium alloy
- alloy surface
- differential arc
- arc oxidation
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- 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
- C25D11/14—Producing integrally coloured layers
-
- 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
- C25D11/024—Anodisation under pulsed or modulated current or potential
-
- 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
- C25D11/16—Pretreatment, e.g. desmutting
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention, which discloses a kind of aluminum alloy surface color method and its products formed, this method, to be included：(1) aluminium alloy punch forming；(2) refine processing is carried out to aluminum alloy surface, removes excess surface soft flocks；(3) aluminium alloy is subjected to ungrease treatment；(4) aluminium alloy after degreasing is washed；(5) aluminium alloy is subjected to differential arc oxidation coloring treatment；(6) aluminium alloy after differential arc oxidation is coloured is washed；(7) aluminium alloy is toasted.The products formed is according to products formed caused by the above method.The present invention overcomes prior art insufficient, using compounding complexing agent technology, provide the new formula technique that a kind of aluminum alloy differential arc oxidation blue film layer, it ensure that film performance is excellent, the uniform blue ceramic film layer of color can not be prepared in aluminium alloy and aluminum matrix composite surface by solving existing differential arc oxidation method, and electrolyte failure it is fast, can not repeated multiple times use the problem of, be more suitable for industrialized production.
Description
【Technical field】
The present invention relates to a kind of method for coloring surface and its products formed, and in particular to a kind of aluminum alloy surface color method and
Its products formed.
【Background technology】
Aluminum material, it is widely used in fields such as Aero-Space, communications and transportation, buildings, but because its quality is soft, it is wear-resisting
Difference, outward appearance is single, it is difficult to meet aerospace industry, marine industries, auto industry and building industry are ornamental to aluminum material and strong
In order to improve the decorative effect of aluminum material, aluminum material will be typically surface-treated the requirement of weather resisteant.Existing aluminium closes
Gold surface treatment technology mostly uses anodic oxidation/chemical dyeing technology, but the material surface obtained using the technique is wear-resisting
Property it is poor, dyestuff and aluminium base adhesion are poor, and surface is easily eclipsed in natural climate, oxidation, there is spot bad phenomenon.
The ceramic film prepared using differential arc oxidation is wear-resisting, and corrosion resistance is strong, and hardness is high, strong with the adhesion of matrix.But mesh
Before, the research on differential arc oxidation alloy colouring is less, and ceramic film is mainly with white, based on grey, so preparing
Bright-colored beautiful and excellent performance film layer is necessary, and exploitation one kind can make one layer of aluminum material Surface Creation
Strong weather resisteant, wear-resistant, anticorrosive blue ceramic film layer is significant in outward appearance application aspect to aluminium alloy.
Though blue ceramic film layer is prepared on alloy matrix aluminum reported in literature, data show it is in hydrogen-oxygen in reporting
Change in sodium electrolyte system and be made, it is that blue film layer is made in colouring agent to add titanium potassium oxalate, but colouring agent is in sodium hydroxide body
It is unstable in system, easily hydrolyze, electrolyte is easily quickly invalidated, can not volume production application.
Separately there is report to be shown in acidic electrolysis bath and add cobalt salt as colouring agent, blue film layer is made, this formula is to ring
Cause necessarily to pollute in border, it is impossible to which it is the higher also unsuitable industrial volume production of colouring agent cost to carry out scale volume production and cobalt salt.
In view of this, it is necessary to provide a kind of aluminum alloy surface color method and its products formed in fact, to solve the above problems.
【The content of the invention】
It is therefore an object of the present invention to provide a kind of aluminum alloy surface color method and its products formed, solves the existing differential of the arc
Method for oxidation can not prepare the uniform blue ceramic film layer of color, and electrolyte failure in aluminium alloy and aluminum matrix composite surface
Hurry up, can not repeated multiple times use the problem of.
In order to achieve the above object, the present invention provides a kind of aluminum alloy surface color method, and it comprises the following steps：
(1) aluminium alloy punch forming；
(2) refine processing is carried out to aluminum alloy surface, removes excess surface soft flocks；
(3) aluminium alloy is subjected to ungrease treatment；
(4) aluminium alloy after degreasing is washed；
(5) aluminium alloy is subjected to differential arc oxidation coloring treatment；
(6) aluminium alloy after differential arc oxidation is coloured is washed；
(7) aluminium alloy is toasted.
Optionally, the step (3) is that aluminium alloy is placed in ethanol or acetone, and aluminium base surface and oil contaminant and impurity is clear
Washout is gone.
Optionally, the power-supply device that differential arc oxidation colours in the step (5) is using a kind of pulse hand/automatic defeated
Go out mode；Model selection：Constant current mode, current density：1.1-2.5A/dm2, frequency：300-550hz, dutycycle：10-30%,
Oxidation cycle：5-12 minutes.
Optionally, differential arc oxidation coloring electrolyte prescription is as follows in the step (3)：Main film forming agent 10-35g/l；Auxiliary
Film forming agent 5-15g/l；Additive 10-25g/l；Compound complex agent 5-30g/l；The pH value of the electrolyte is 9.0-13.0, reaction
Temperature：20-40 DEG C.
Optionally, the main film forming agent is silicate, phosphate, one kind in aluminate or its mixture.
Optionally, the auxiliary film former is：Fluorochemical, potassium fluoride or sodium fluoride.
Optionally, the mixture that the additive is made up of multicomponents such as acylate, citrates.
Optionally, the compound complex agent：By two or more combination oxalic acid in glycerine, triethanolamine, oxalic acid, lactic acid
The mixture that titanium potassium or potassium fluorozirconate are formed.
The present invention provides a kind of aluminum alloy surface molded-in-color product, and the products formed is according to above-mentioned aluminum alloy surface coloring side
Products formed caused by method.
Compared to prior art, aluminum alloy surface color method of the present invention and its products formed, overcome prior art insufficient, profit
With compounding complexing agent technology, there is provided a kind of aluminum alloy differential arc oxidation the new formula technique of blue film layer, ensure that film layer
Can be excellent, the uniform blueness pottery of color can not be prepared in aluminium alloy and aluminum matrix composite surface by solving existing differential arc oxidation method
Porcelain film layer, and electrolyte failure it is fast, can not repeated multiple times use the problem of, be more suitable for industrialized production.
【Brief description of the drawings】
Fig. 1 illustrates aluminum alloy surface color method flow chart of the present invention.
Fig. 2 is aluminum alloy surface molded-in-color product first embodiment figure of the present invention.
Fig. 3 is aluminum alloy surface molded-in-color product second embodiment figure of the present invention.
Fig. 4 is aluminum alloy surface molded-in-color product 3rd embodiment figure of the present invention.
【Embodiment】
Referring to Fig. 1, Fig. 1 illustrates aluminum alloy surface color method flow chart of the present invention.
In order to achieve the above object, the present invention provides a kind of aluminum alloy surface color method, and it comprises the following steps：
Step 101：Aluminium alloy punch forming；
Step 102：Refine processing is carried out to aluminum alloy surface, removes excess surface soft flocks；
Step 103：Aluminium alloy is subjected to ungrease treatment；
Step 104：Aluminium alloy after degreasing is washed；
Step 105：Aluminium alloy is subjected to differential arc oxidation coloring treatment；
Step 106：Aluminium alloy after differential arc oxidation is coloured is washed；
Step 107：Aluminium alloy is toasted.
Wherein, the step 103 is that aluminium alloy is placed in ethanol or acetone, and aluminium base surface and oil contaminant and impurity are cleaned
Remove.
Wherein, the power-supply device that differential arc oxidation colours in the step 105 is using a kind of pulse hand/automatic output
Mode；Model selection：Constant current mode, current density：1.1-2.5A/dm2, frequency：300-550hz, dutycycle：10-30%, oxygen
Change the cycle：5-12 minutes.
Wherein, differential arc oxidation coloring electrolyte prescription is as follows in the step 105：Main film forming agent 10-35g/l；Aid in into
Film 5-15g/l；Additive 10-25g/l；Compound complex agent 5-30g/l；The pH value of the electrolyte is 9.0-13.0, reaction temperature
Degree：20-40 DEG C.
Wherein, the main film forming agent is silicate, phosphate, one kind in aluminate or its mixture.It is described auxiliary into
Film is：Fluorochemical, potassium fluoride or sodium fluoride.The additive is made up of multicomponents such as acylate, citrates
Mixture.The compound complex agent：By two or more combination titanium potassium oxalates in glycerine, triethanolamine, oxalic acid, lactic acid or
The mixture that potassium fluorozirconate is formed.
Wherein, the differential arc oxidation coloring in the step 105 is what is grown up on the basis of traditional anodic oxidation
A kind of emerging process for treating surface, the height that arc discharge can be passed through in the surface in situ of the metals such as Al, Mg, Ti and its alloy
Density energy makes matrix surface form melting zone, and the chemical reaction that enhancing occurs on anode obtains the ceramic membrane of excellent performance
Layer.This technical matters process is simple and convenient to operate, treatment effeciency is high, cost is cheap, pollution to environment is small.
The present invention provides a kind of aluminum alloy surface molded-in-color product, and the products formed is according to above-mentioned aluminum alloy surface coloring side
Products formed caused by method.
Compared to prior art, aluminum alloy surface color method of the present invention and its products formed, overcome prior art insufficient, profit
With compounding complexing agent technology, there is provided a kind of aluminum alloy differential arc oxidation the new formula technique of blue film layer, ensure that film layer
Can be excellent, the uniform blueness pottery of color can not be prepared in aluminium alloy and aluminum matrix composite surface by solving existing differential arc oxidation method
Porcelain film layer, and electrolyte failure it is fast, can not repeated multiple times use the problem of, be more suitable for industrialized production.
Please in conjunction with refering to Fig. 2-Fig. 4, Fig. 2 is that aluminum alloy surface molded-in-color product first embodiment figure of the present invention is (corresponding
Tested number 3#), Fig. 3 be aluminum alloy surface molded-in-color product second embodiment figure of the present invention (corresponding tested number 4#), Fig. 4 be this hair
Bright aluminum alloy surface molded-in-color product 3rd embodiment figure (corresponding tested number 5#).
Colouring electrolyte is compounded by a certain percentage by components such as main film forming agent, auxiliary film former, additives, coloring addition
Agent is by each component in resurrection complexing agent by not forming complex compound on year-on-year basis.Different in compound complex agent addition concentration, outward appearance is blue
The shallow difference of color depth.
Following table is referred to, it is that various concentrations compound complex agent shows color depth.
Referring again to following table, it is blue aluminum alloy sample the performance test results (thicknesses of layers 8-25um).
It is noted that the invention is not restricted to above-mentioned embodiment, any person skilled in the art is based on this hair
Any simple modification, equivalent change and modification that bright technical scheme is made to above-described embodiment, both fall within the protection model of the present invention
In enclosing.
Claims (9)
1. a kind of aluminum alloy surface color method, it is characterised in that it comprises the following steps：
(1) aluminium alloy punch forming；
(2) refine processing is carried out to aluminum alloy surface, removes excess surface soft flocks；
(3) aluminium alloy is subjected to ungrease treatment；
(4) aluminium alloy after degreasing is washed；
(5) aluminium alloy is subjected to differential arc oxidation coloring treatment；
(6) aluminium alloy after differential arc oxidation is coloured is washed；
(7) aluminium alloy is toasted.
2. aluminum alloy surface color method as claimed in claim 1, it is characterised in that the step (3) is to put aluminium alloy
In ethanol or acetone, aluminium base surface and oil contaminant and impurity cleaning are removed.
3. aluminum alloy surface color method as claimed in claim 1, it is characterised in that differential arc oxidation in the step (5)
The power-supply device of color uses a kind of pulse hand/automatic way of output；Model selection：Constant current mode, current density：1.1-
2.5A/dm2, frequency：300-550hz, dutycycle：10-30%, oxidation cycle：5-12 minutes.
4. aluminum alloy surface color method as claimed in claim 1, it is characterised in that differential arc oxidation in the step (3)
Color electrolyte prescription is as follows：Main film forming agent 10-35g/l；Auxiliary film former 5-15g/l；Additive 10-25g/l；Compound complex agent
5-30g/l；The pH value of the electrolyte is 9.0-13.0, reaction temperature：20-40 DEG C.
5. aluminum alloy surface color method as claimed in claim 4, it is characterised in that the main film forming agent is silicate, phosphorus
One kind or its mixture in hydrochlorate, aluminate.
6. aluminum alloy surface color method as claimed in claim 4, it is characterised in that the auxiliary film former is：Containing fluorination
Compound, potassium fluoride or sodium fluoride.
7. aluminum alloy surface color method as claimed in claim 4, it is characterised in that the additive be by acylate,
The mixture of the multicomponents such as citrate composition.
8. aluminum alloy surface color method as claimed in claim 4, it is characterised in that the compound complex agent：By glycerine,
The mixture that two or more combination titanium potassium oxalates or potassium fluorozirconate are formed in triethanolamine, oxalic acid, lactic acid.
9. a kind of aluminum alloy surface molded-in-color product, it is characterised in that the products formed is according to any in the claims 1-8
Products formed caused by aluminum alloy surface color method described in.
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| CN201610780547.7A CN107794558A (en) | 2016-08-31 | 2016-08-31 | Aluminum alloy surface color method and its products formed |
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Cited By (2)
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| CN108531959A (en) * | 2018-04-19 | 2018-09-14 | 佛山市小沙江科技有限公司 | A kind of Al alloy parts high-efficiency environment friendly electrophoresis sandblasting single nickel salt color method |
| CN113981504A (en) * | 2021-06-23 | 2022-01-28 | 中南机诚精密制品(深圳)有限公司 | Micro-arc oxidation patterning process method for ceramic alloy film layer and micro-arc oxidation cargo |
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