CN103789808B - The surface treatment method and aluminum products of aluminium alloy - Google Patents
The surface treatment method and aluminum products of aluminium alloy Download PDFInfo
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- CN103789808B CN103789808B CN201210426259.3A CN201210426259A CN103789808B CN 103789808 B CN103789808 B CN 103789808B CN 201210426259 A CN201210426259 A CN 201210426259A CN 103789808 B CN103789808 B CN 103789808B
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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
- C25D11/16—Pretreatment, e.g. desmutting
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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
-
- 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
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
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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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
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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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Abstract
The present invention provides a kind of surface treatment method of aluminium alloy, comprises the following steps：Aluminum alloy base material is provided；Solution treatment is carried out to aluminum alloy base material, so that element silicon is uniformly scattered in the aluminum alloy base material；Pickling processes are carried out to the aluminum alloy base material, to remove the element silicon on the aluminum alloy base material top layer；Anodized is carried out to the aluminum alloy base material, with one layer of porous pellumina of formation on the aluminum alloy base material；Coloring treatment is carried out to the aluminum alloy base material；Sealing pores are carried out to the aluminum alloy base material, with formation monohydrate alumina layer on the pellumina.The present invention provides aluminum products made from a kind of surface treatment method of above-mentioned aluminium alloy.
Description
The technical field present invention is on the surface treatment method of a kind of aluminium alloy and obtained after treatment by using the treatment method
Aluminum products.
Background technology
Aluminium alloy has good die-casting process performance, high mechanical strength and corrosion resistant advantage, in machine-building, instrument instrument
Table, automobile and ornamental part etc. have a wide range of applications.
But contain more element silicon inside aluminium alloy, after carrying out coloring treatment to the aluminium alloy, the presence meeting of element silicon
Cause to colour uneven.
At present to improve the uniformity of the aluminum alloy surface color after coloring treatment, pickling is carried out to the aluminium alloy first
Processing, but use the method for pickling normally only to remove the element silicon on aluminium alloy top layer.Yet with the silicon member inside aluminium alloy
Plain distributing inhomogeneity, and the silicon content of the surface region of aluminium alloy is generally relatively low, although the element silicon on top layer can after pickling
It is removed, but the content of element silicon total inside aluminium alloy after pickling is still higher.Therefore existing pickling processes can not be effective
Improve the uniformity of alloy colouring after anode is handled.
The content of the invention
In consideration of it, provide a kind of surface treatment method for the aluminium alloy that can effectively solve the above problems.
In addition, it there is a need to offer one kind through aluminum products made from the above method.
A kind of surface treatment method of aluminium alloy, it comprises the following steps：
One pending aluminum alloy base material is provided；
Solution treatment is carried out to the aluminum alloy base material, so that element silicon is uniformly scattered in the aluminum alloy base material；
Pickling processes are carried out to the aluminum alloy base material after solution treatment, to remove the aluminum alloy base material top layer
Element silicon；
Using the aluminum alloy base material after pickling processes as anode, anodized is carried out to the aluminum alloy base material,
So as to form a porous pellumina on the surface of the aluminum alloy base material；
Coloring treatment is carried out to the aluminum alloy base material after anodized；
Sealing pores are carried out to the aluminum alloy base material after coloring treatment.
A kind of aluminum products via obtained by above-mentioned surface treatment method include aluminum alloy base material, are formed at the aluminium alloy base
Pellumina on material and the aqua oxidation aluminium lamination being attached on the pellumina, wherein the pellumina passes through anodic oxygen
The mode for changing reaction is made, and the pellumina does not contain element silicon, and formed with some micropores.
Compared with prior art, the technology of the present invention effect is：The surface treatment method of the aluminium alloy of the present invention first passes through solid
Then molten processing removes aluminum alloy base material table so that element silicon is uniformly scattered in the aluminum alloy base material by pickling processes
The element silicon of layer.After carrying out anodized, coloring treatment, sealing pores to aluminium alloy again, so as in aluminum alloy base material table
Face uniformly colours.
Brief description of the drawings
Fig. 1 is by the schematic cross-sectional view of the aluminum products of present pre-ferred embodiments.
Main element symbol description
| Aluminum products | 100 |
| Aluminum alloy base material | 10 |
| Pellumina | 12 |
| Aqua oxidation aluminium lamination | 14 |
| Aluminum oxide micropore | 121 |
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
The surface treatment method of the aluminium alloy of a better embodiment of the invention, it comprises the following steps：
Referring to Fig. 1, provide a pending aluminum alloy base material 10.
Ultrasonic wave cleaning is carried out to the aluminum alloy base material 10 using absolute ethyl alcohol, to remove the surface of aluminum alloy base material 10
Greasy dirt.The time of the ultrasonic wave cleaning can be 25-35 minutes.
Air-dry the aluminum alloy base material 10.Using a hair-dryer, the angle for adjusting the hair-dryer is 30-60 °, air-dries institute
State through the cleaned aluminum alloy base material 10 of ultrasonic wave.Described air-dry carries out 2-3 minutes at room temperature.
Solution treatment is carried out to the above-mentioned aluminum alloy base material 10 after air-drying processing.The solution treatment is：One case is provided
Formula resistance furnace（It is not shown）, it is 495-525 DEG C by the temperature setting of the chamber type electric resistance furnace, the aluminum alloy base material 10 is inserted this
8-10 hours are placed in chamber type electric resistance furnace, the aluminum alloy base material 10 is dissolved at a high temperature of the chamber type electric resistance furnace, in it
The element silicon in portion is dispersed in during this solid solution in the aluminum alloy base material 10.
Aluminum alloy base material 10 is taken out from the chamber type electric resistance furnace, and in 5 seconds after taking out the aluminum alloy base material 10, will
The aluminum alloy base material 10 is inserted in 20-25 DEG C of water and carries out Quenching Treatment, to keep the aluminum alloy base material 10 after solution treatment
Institutional framework.The time of wherein described Quenching Treatment is 3-5 minutes.
One pickle is provided, and is put into stand-by in a descaling bath, wherein the temperature of the pickle is room temperature.The acid
Contain nitric acid and hydrofluoric acid in washing lotion, and the volume ratio of the nitric acid and hydrofluoric acid can be 8-10：1-1.5.
Aluminum alloy base material 10 after above-mentioned quenched processing is inserted pickling processes are carried out in the descaling bath, the pickling
The time of processing is 5-10 minutes.The element silicon contained in the top layer of aluminum alloy base material 10 reacts with hydrofluoric acid, generates tetrafluoro
SiClx compound, and the ocratation compound is dissolvable in water in the pickle, thus the aluminum alloy base material can be removed
Element silicon in 10 top layers.It is demonstrated experimentally that the pickling processes can remove the table of the 15-25 micrometer depths of the aluminum alloy base material 10
Contained element silicon in layer, the content of element silicon total inside aluminium alloy after pickling is set to decline 1.3-1.65%.
It should be understood that a cooling back installation can be set outside the descaling bath to maintain pickle in the descaling bath
Temperature is room temperature.
Aluminum alloy base material 10 described in chemical polishing after pickling processes, to reduce the coarse of the surface of aluminum alloy base material 10
Degree, improve the glossiness on the surface of aluminum alloy base material 10.The chemical polishing includes two processes of vulcanizing treatment and nitrification processing.
Vulcanizing treatment is carried out to the aluminum alloy base material 10 using vulcanizing agent.Contain sulfuric acid and phosphoric acid in the vulcanizing agent,
The volume ratio of wherein described sulfuric acid and phosphoric acid can be 1-1.5:3-5.The temperature of the vulcanizing agent can be 70-90 DEG C, vulcanizing treatment
Time can be the 20-30 seconds.Sulfuric acid and phosphoric acid in the vulcanizing agent it is ionizable go out H+Ion, H+Ion and the aluminium alloy base
The oxidation reactive aluminum generation Al on the surface of material 103+And H2O hydrones, to remove the aluminum oxide on the surface of aluminum alloy base material 10.
Nitrification processing is carried out to the aluminum alloy base material 10 using nitrating agent.Contain nitric acid and phosphoric acid in the nitrating agent,
The volume ratio of the nitric acid and phosphoric acid can be 1-1.5:1-3.The nitrating agent temperature can be 60-80 DEG C, the time of nitrification processing
It can be the 20-30 seconds.The phosphoric acid can react with the aluminum metal in the aluminum alloy base material 10, in the table of the aluminum alloy base material 10
Face generates a phosphalugel, and the phosphalugel is dissolved in the nitrating agent, so as to improve the surface of aluminum alloy base material 10
Glossiness.
Anodized is carried out to the above-mentioned aluminum alloy base material 10 after vulcanization and nitrification processing.At the anodic oxidation
Manage and be：It is anode with the aluminum alloy base material 10, stainless steel is negative electrode, applies 20-60V voltage between anode and negative electrode,
2-6.5A/dm2DC current, the sulfuric acid solution using concentration as 120-210g/L is electrolyte, enables aluminum alloy to base material 10 in temperature
Spend reaction 5-65 minutes in the sulfuric acid solution for 3-30 DEG C.In anode oxidation process, H2O hydrones can ionize generation H+Ion
And OH-Ion, H+Ion is reduced generation H near negative electrode2.Work as OH-When ion is moved near anode, H is generated2O hydrones
And O2, O2Reacted with the aluminum alloy base material 10 so as in the porous pellumina 12 of the Surface Creation one of aluminum alloy base material 10.
The thickness of the pellumina 12 is 5-12 microns, is practically free of element silicon in the thickness range, thus will not be to follow-up
Color processing produces harmful effect.The pellumina 12 is formed with some micropores 121.
One colouring agent is provided, and is put into a heat preservation tank.The concentration of the colouring agent is 0.2-4g/L, pH value 4-
10.The pH value of the colouring agent can be adjusted by adding acetic acid, ammoniacal liquor or dilute sodium hydroxide into the colouring agent.The coloring
Agent can be cluck ton class dyestuff, pyrene class dyestuff, methine class dyestuff, Coumarins dyestuff, cyanine type dye, stilbene class dyestuff or oxazines class
Dyestuff.
The aluminum alloy base material 10 after anodized is immersed coloring treatment is carried out in the heat preservation tank.
In color processing procedure, the colouring agent is filled in some micropores 121 of the pellumina 12.The coloring treatment is in 30-
5-20 minutes are carried out at a temperature of 60 DEG C.
Sealing pores are carried out to the above-mentioned aluminum alloy base material 10 after coloring treatment.The sealing pores can use boiling water to seal
Hole, steam sealing of hole, nickel acetate sealing of hole, potassium bichromate sealing of hole, nickel sulfate sealing of hole, nickel acetate sealing of hole, stearic acid sealing or cold seal
Hole.
The present embodiment preferably uses boiling water sealing hole.The boiling water sealing hole is specially：By the above-mentioned aluminium alloy after coloring treatment
Base material 10 is inserted 30-45 minutes in a boiling water groove, equipped with the boiling water that temperature is 95-100 DEG C in the boiling water groove.Sealed in the boiling water
After the processing of hole, monohydrate alumina layer 14 is formed on the surface of the pellumina 12.
A kind of aluminum products 100 via obtained by above-mentioned surface treatment method include aluminum alloy base material 10, are formed at the aluminium
Pellumina 12 on alloy base material and the aqua oxidation aluminium lamination 14 being attached on the pellumina 12, wherein the aluminum oxide
Film 12 is formed with some micropores 121.The pellumina 12 is made by way of anodic oxidation reactionses, in the pellumina 12
Element silicon is not contained.The uniformity of the surface of aluminum products 100 coloring is 90-98%.
The present invention is specifically described below by embodiment.
Embodiment 1:
（One）Ultrasonic wave cleans：Ultrasonic wave is carried out to the aluminum alloy base material 10 using absolute ethyl alcohol and cleans about 30 points
Clock.
（Two）Air-dry processing：Using a hair-dryer, the angle for adjusting the hair-dryer is 30 °, is air-dried described through ultrasonic wave
Cleaned aluminum alloy base material 10.Described air-dry is carried out 2 minutes at room temperature.
（Three）Solution treatment：It is small that the aluminum alloy base material 10 is inserted into insulation 8 in the chamber type electric resistance furnace that temperature is 525 DEG C
When.
（Four）Quenching Treatment：In 5 seconds after taking out the aluminum alloy base material 10, it is put into the water that temperature is 20 DEG C
Carry out Quenching Treatment.The time of the Quenching Treatment is 5 minutes.
（Five）Pickling processes：Pickle is configured, the wherein percent by volume of the nitric acid in the pickle and hydrofluoric acid is 8：
1.Aluminum alloy base material 10 after the quenched processing is immersed in the pickle 5 minutes.The pickling processes make the aluminium alloy
The content of total element silicon inside base material reduces by 1.3%.
（Six）Vulcanizing treatment：Vulcanizing agent is configured, the temperature of the vulcanizing agent is 70 DEG C, sulfuric acid and phosphoric acid wherein in the vulcanizing agent
Volume ratio be 1:3.The time of the vulcanizing treatment is 20 seconds.
（Seven）Nitrification processing：Nitrating agent is configured, the temperature of the nitrating agent is 60 DEG C, nitric acid and phosphoric acid wherein in the nitrating agent
Volume ratio be 1:1.The time of the nitrification processing is 20 seconds.
（Eight）Anodized：Using the aluminum alloy base material as anode, stainless steel is negative electrode, between anode and negative electrode
The 22V of application voltage, 2.3A/dm2DC current, the sulfuric acid solution using concentration as 130g/L is electrolyte, makes the aluminium
Alloy base material 10 reacts 15 minutes in the sulfuric acid solution that temperature is 20 DEG C.
（Nine）Coloring treatment：Offer concentration is 4g/L, and pH value is 5 cluck ton class dyestuff.The coloring treatment is at 30 DEG C
At a temperature of carry out 5 minutes.
（Ten）Sealing pores：The sealing pores are carried out 30 minutes in 100 DEG C of boiling water.
Embodiment 2：
（One）Ultrasonic wave cleans：Ultrasonic wave is carried out using absolute ethyl alcohol to the aluminum alloy base material to clean about 30 minutes.
（Two）Air-dry processing：Using a hair-dryer, the angle for adjusting the hair-dryer is 50 °, is air-dried described through ultrasonic wave
Cleaned aluminum alloy base material.Described air-dry is carried out 2 minutes at room temperature.
（Three）Solution treatment：The aluminum alloy base material is inserted in the chamber type electric resistance furnace that temperature is 510 DEG C and is incubated 9 hours.
（Four）Quenching Treatment：In 5 seconds after taking out the aluminum alloy base material, it is put into 15 DEG C of water and carries out at quenching
Reason.The time of the Quenching Treatment is 5 minutes.
（Five）Pickling processes：Pickle is configured, the wherein percent by volume of the nitric acid in the pickle and hydrofluoric acid is 10：
1.5.Aluminum alloy base material after the quenched processing is immersed in the pickle 5 minutes.The pickling processes make the aluminium alloy
The content of total element silicon inside base material reduces by 1.5%.
（Six）Vulcanizing treatment：Vulcanizing agent is configured, the temperature of the vulcanizing agent is 75 DEG C, sulfuric acid and phosphoric acid wherein in the vulcanizing agent
Volume ratio be 1:5.The time of the vulcanizing treatment is 20 seconds.
（Seven）Nitrification processing：Nitrating agent is configured, the temperature of the nitrating agent is 70 DEG C, nitric acid and phosphoric acid wherein in the nitrating agent
Volume ratio be 1:1.The time of the nitrification processing is 30 seconds.
（Eight）Anodized：Using the aluminum alloy base material as anode, stainless steel is negative electrode, between anode and negative electrode
The 30V of application voltage, 3A/dm2DC current, the sulfuric acid solution using concentration as 180g/L is electrolyte, closes the aluminium
Auri material reacts 20 minutes in the sulfuric acid solution that temperature is 20 DEG C.
（Nine）Coloring treatment：Offer concentration is 3g/L, and pH is 6 cluck ton class dyestuff.Temperature of the coloring treatment at 40 DEG C
Degree is lower to be carried out 10 minutes.
（Ten）Sealing pores：The sealing pores are carried out 40 minutes in 100 DEG C of boiling water.
Embodiment 3：
（One）Ultrasonic wave cleans：Ultrasonic wave is carried out using absolute ethyl alcohol to the aluminum alloy base material to clean about 30 minutes.
（Two）Air-dry processing：Using a hair-dryer, the angle for adjusting the hair-dryer is 60 °, is air-dried described through ultrasonic wave
Cleaned aluminum alloy base material.Described air-dry is carried out 3 minutes at room temperature.
（Three）Solution treatment：The aluminum alloy base material is inserted in the chamber type electric resistance furnace that temperature is 495 DEG C and is incubated 10 hours.
（Four）Quenching Treatment：In 5 seconds after taking out the aluminum alloy base material, it is put into 20 DEG C of water and is quenched
Processing.The time of the Quenching Treatment is 5 minutes.
（Five）Pickling processes：Pickle is configured, the wherein percent by volume of the nitric acid in the pickle and hydrofluoric acid is 9：
1.Aluminum alloy base material after the quenched processing is immersed in the pickle 10 minutes.The pickling processes make the aluminium alloy base
The content of total element silicon inside material reduces by 1.65%.
（Six）Vulcanizing treatment：Vulcanizing agent is configured, the temperature of the vulcanizing agent is 80 DEG C, sulfuric acid and phosphoric acid wherein in the vulcanizing agent
Volume ratio be 1:4.The time of the vulcanizing treatment is 25 seconds.
（Seven）Nitrification processing：Nitrating agent is configured, the temperature of the nitrating agent is 80 DEG C, nitric acid and phosphoric acid wherein in the nitrating agent
Volume ratio be 1:2.The time of the nitrification processing is 30 seconds.
（Eight）Anodized：Using the aluminum alloy base material as anode, stainless steel is negative electrode, between anode and negative electrode
The 55V of application voltage, 5.5A/dm2DC current, the sulfuric acid solution using concentration as 200g/L is electrolyte, makes the aluminium
Alloy base material reacts 60 minutes in the sulfuric acid solution that temperature is 5 DEG C.
（Nine）Coloring treatment：Offer concentration is 1g/L, and pH is 5 cluck ton class dyestuff.Temperature of the coloring treatment at 60 DEG C
Degree is lower to be carried out 20 minutes.
（Ten）Sealing pores：The sealing pores are carried out 35 minutes in 100 DEG C of boiling water.
Claims (12)
1. a kind of surface treatment method of aluminium alloy, it comprises the following steps：
One pending aluminum alloy base material is provided；
Solution treatment is carried out to the aluminum alloy base material, so that element silicon is dispersed in the aluminum alloy base material；
Pickling processes are carried out to the aluminum alloy base material after solution treatment, to remove the silicon on aluminum alloy base material top layer member
Element；
Using the aluminum alloy base material after pickling processes as anode, anodized is carried out to the aluminum alloy base material, at this
The surface of aluminum alloy base material forms a porous pellumina, to be closed using pickle to the aluminium the step of pickling processes
Auri material is handled, and containing volume ratio is 8-10 in the pickle：1-1.5 nitric acid and hydrofluoric acid, and the pickling processes
Time be 5-10 minutes；
Coloring treatment is carried out to the aluminum alloy base material after anodized；
Sealing pores are carried out to the aluminum alloy base material after coloring treatment.
2. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The step of solution treatment is will
The aluminum alloy base material is inserted and solution treatment is carried out in chamber type electric resistance furnace, and the solution treatment is entered at a temperature of 495-525 DEG C
Row 8-10 hours.
3. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The anodized is：With
The aluminum alloy base material is anode, and stainless steel is negative electrode, the 20-60V voltages applied between anode and negative electrode, 2-6.5A/dm2
DC current, the sulfuric acid solution using concentration as 120-210g/L is electrolyte, anti-in temperature is 3-30 DEG C of sulfuric acid solution
Answer 5-65 minutes.
4. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The step of coloring treatment is to adopt
Coloring treatment is carried out to the aluminum alloy base material with colouring agent, the colouring agent is organic dyestuff based colorant, and its concentration is 0.2-
4g/L, pH value 4-10, the coloring treatment carry out 5-20 minutes at a temperature of 30-60 DEG C.
5. the surface treatment method of aluminium alloy as claimed in claim 4, it is characterised in that：The organic dyestuff based colorant is
Cluck ton class dyestuff, pyrene class dyestuff, methine class dyestuff, Coumarins dyestuff, cyanine type dye, stilbene class dyestuff or oxazines class dyestuff.
6. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The sealing pores are sealed using boiling water
Hole, steam sealing of hole, nickel acetate sealing of hole, potassium bichromate sealing of hole, nickel sulfate sealing of hole, nickel acetate sealing of hole, stearic acid sealing or cold seal
Hole.
7. the surface treatment method of aluminium alloy as claimed in claim 6, it is characterised in that：The boiling water sealing hole processing is in 95-
30-45 minutes are carried out in 100 DEG C of boiling water.
8. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The surface treatment side of the aluminium alloy
Method is additionally included in after the solution treatment the step of carrying out Quenching Treatment to it, and the Quenching Treatment is by the aluminum alloy base material
Being built into water for 5 seconds after being taken out from chamber type electric resistance furnace.
9. the surface treatment method of aluminium alloy as claimed in claim 1, it is characterised in that：The surface treatment side of the aluminium alloy
Method is additionally included in after the pickling processes the step of carrying out chemical polishing processing to it, and the chemical polishing processing is included at vulcanization
Reason and two steps of nitrification processing.
10. the surface treatment method of aluminium alloy as claimed in claim 9, it is characterised in that：The aluminium is closed using vulcanizing agent
Auri material carries out vulcanizing treatment, containing volume ratio is 1-1.5 in the vulcanizing agent:3-5 sulfuric acid and phosphoric acid, and the vulcanizing treatment
The 20-30 seconds are carried out at a temperature of 70-90 DEG C.
11. the surface treatment method of aluminium alloy as claimed in claim 9, it is characterised in that：The aluminium is closed using nitrating agent
Auri material carries out nitrification processing, containing volume ratio is 1-1.5 in the nitrating agent:1-3 nitric acid and phosphoric acid, and the nitrification processing
The 20-30 seconds are carried out at a temperature of 60-80 DEG C.
A kind of 12. aluminum products, it is characterised in that：The aluminum products are the surface of the aluminium alloy described in claim 1-11 any one
Aluminum products obtained by processing method.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426259.3A CN103789808B (en) | 2012-10-31 | 2012-10-31 | The surface treatment method and aluminum products of aluminium alloy |
| TW101142112A TWI573898B (en) | 2012-10-31 | 2012-11-12 | Surface treatment method for aluminum alloy and aluminum articles thereof |
| US13/865,634 US20140116883A1 (en) | 2012-10-31 | 2013-04-18 | Surface treatment process for aluminum alloy and aluminum alloy article thereof |
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| CN201210426259.3A CN103789808B (en) | 2012-10-31 | 2012-10-31 | The surface treatment method and aluminum products of aluminium alloy |
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| CN103789808B true CN103789808B (en) | 2017-12-01 |
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| CN113084456A (en) * | 2021-04-02 | 2021-07-09 | 山东泰和能源股份有限公司 | Processing technology of aluminum alloy thin-wall shell |
| KR20230016465A (en) * | 2021-07-26 | 2023-02-02 | 삼성전자주식회사 | Electronic device frame and electronic device comprising thereof |
| CN113981498A (en) * | 2021-09-30 | 2022-01-28 | 北京动力机械研究所 | 3D printing AlMgSc alloy surface anodic oxidation method |
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| CN102321904A (en) * | 2011-08-25 | 2012-01-18 | 东北大学 | Mixed acid anodizing and hole sealing method of magnesium-containing high-silicon-content wrought aluminum alloy surface |
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| TWI426158B (en) * | 2010-12-31 | 2014-02-11 | Univ China Sci & Tech | Aluminum alloy products on the surface of the natural coloring method |
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- 2012-10-31 CN CN201210426259.3A patent/CN103789808B/en not_active Expired - Fee Related
- 2012-11-12 TW TW101142112A patent/TWI573898B/en not_active IP Right Cessation
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2013
- 2013-04-18 US US13/865,634 patent/US20140116883A1/en not_active Abandoned
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| CN1144852A (en) * | 1995-03-24 | 1997-03-12 | 本田技研工业株式会社 | Process for anodizing aluminum materials and application members whereby |
| CN101446690A (en) * | 2008-12-30 | 2009-06-03 | 浙江工贸职业技术学院 | Casting aluminium alloy spectacle fame with surface capable of decoratively anodizing and manufacturing method thereof |
| CN102421945A (en) * | 2009-05-08 | 2012-04-18 | 富士胶片株式会社 | Aluminum base material, metal substrate having insulating layer employing the aluminum base material, semiconductor element, and solar battery |
| KR20120035458A (en) * | 2010-10-05 | 2012-04-16 | 주식회사 피엔풍년 | Manufacturing method of aluminum casting alloys which has a black color for hard anodizing |
| CN102321904A (en) * | 2011-08-25 | 2012-01-18 | 东北大学 | Mixed acid anodizing and hole sealing method of magnesium-containing high-silicon-content wrought aluminum alloy surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103789808A (en) | 2014-05-14 |
| US20140116883A1 (en) | 2014-05-01 |
| TW201416494A (en) | 2014-05-01 |
| TWI573898B (en) | 2017-03-11 |
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