CN1038856C - Compound color formation for aluminium or its alloy - Google Patents
Compound color formation for aluminium or its alloy Download PDFInfo
- Publication number
- CN1038856C CN1038856C CN93110838A CN93110838A CN1038856C CN 1038856 C CN1038856 C CN 1038856C CN 93110838 A CN93110838 A CN 93110838A CN 93110838 A CN93110838 A CN 93110838A CN 1038856 C CN1038856 C CN 1038856C
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- Prior art keywords
- aluminium
- dyeing
- electrolytic
- test
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Classifications
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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
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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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a compound colouring method for aluminium and aluminium alloy. The technological process of the present invention comprises the surface treatment step of oil removal, brushing, alkali etching, polishing, etc., the sulfuric acid anodization step, the electrolytic colouring step, the dyeing step and the closing step. The colouring method of the present invention overcomes the defects existing in the single electrolytic colouring method and the single dyeing method, and has the characteristics of wide colour tone and favorable performance. Coloured films with the colour tones of red, orange, yellow, green, cyan, blue, purple, etc. can be formed on the surfaces of aluminium and aluminium alloy according to needs; the formed coloured films have the advantages of corrosion resistance, light resistance and favorable wear resistance; the formed coloured films achieve level 9.3 in the international standard through the Cass test, do not change for 600 hours through the light resistance test, and can achieve 100 times per micrometer through the wear resistance test.
Description
The invention belongs to the surface decoration and the protection field of aluminium and aluminium alloy, particularly relate to the dyeing of a kind of aluminium and aluminium alloy and the composite coloration method of electrolytic coloring and usefulness.
About the surface colour of aluminium and aluminium alloy, the actual method of using mainly is staining and electrocolor process in the industrial production now.The technical process of staining is: surface treatment → anodizing → dyeing → sealing, though the tone broadness of this kind method coloring film, its solidity to corrosion, wear resistance and photostabilization are poor, and its application is restricted.Electrocolor process comprises interference of light electrolytic coloring and scattering of light electrolytic coloring.U.S. Pat 4251330 discloses a kind of method of interference of light electrolytic coloring, technical process is: surface treatment → sulfuric acid sun plateization → phosphoric acid → electrolytic coloring → sealing, though this kind method makes aluminium and aluminium alloy can obtain solidity to corrosion, photostabilization is good, and the decorating film that tone is wider, but the color poor repeatability, technology stability is poor, and is restive." aluminum anode pink salt electrolytic coloring technology " that HJ Gohausen is published on " Trans.Inst.Met.Finish " Summer 1982,1 (2) 19-24 introduced a kind of scattering of light electrocolor process, technical process is: surface treatment → sulfur acid anodizing → electrolytic coloring → envelope group, though this kind method can obtain the good oxide film of solidity to corrosion, its color single (mainly presenting bronze colour).
H.Grossman and C.T.Speiser is published in " ALUMINUM " janrg 1979,55, " aluminum anode electrolytic coloring one dyeing composite technology " on the 141-144 discloses a kind of composite coloration method, and its technical process is: surface treatment → sulfur acid anodizing → electrolytic coloring → dyeing → sealing.This kind method still can not be avoided the shortcoming of staining, and the solidity to corrosion of coloring film is relatively poor, and through Cass test in 24 hours, test-results only reached the 1-2 level (the 6-8 level that is equivalent to international standard) of German standard.
The objective of the invention is to overcome the deficiencies in the prior art, revolve the NEW TYPE OF COMPOSITE colorize method for a kind of aluminium and aluminium alloy, not only tone is wide for the coloring film that this kind method forms, wear resistance, solidity to corrosion, photostabilization are good, and is easy to control tone.
The object of the present invention is achieved like this: dyeing mechanism and Mechanism of Electrolytic Colouring according to aluminium and aluminium alloy are improved the technical process that has colorize method now, adopted the composite coloration method of first dyeing, back electrolytic coloring, and each working procedure parameter has been optimized.The operation that the technical process of this method is included and the order of each operation are as follows: 1. surface treatments such as oil removing, scratch brushing, alkaline etching, bright dipping: 2, sulfur acid anodizing; 3, dyeing; 4, electrolytic coloring: 5, sealing.When operating above-mentioned each operation, workpiece just can enter next process after should fully washing.
The processing parameter of dyeing and electrolytic coloring operation and the prescription of dye solution and electrolytic colouring liquid are as follows:
1, the prescription of dye solution and dyeing parameter
Dyestuff, grams per liter: 1~15
pH: 5~6
Temperature, ℃: 20~80
Time, minute: 1~10
2, the prescription of electrolytic colouring liquid and electrolytic colouring technology parameter
NiSO
4, grams per liter: 20~50
SnSO
4, grams per liter: 1~15
H
2SO
4(dense), milliliter/liter:
5~15
pH: 0.3~5.5
Voltage (interchange), V:10~25
Temperature, ℃: 15-80
Time, minute: 1-10
The present invention has the following advantages:
1, can form the coloring film of tones such as red, orange, yellow, green, blue or green, blue, purple as required on the surface of aluminium and aluminium alloy.
2, because elder generation dyes, the back electrolytic coloring, the NiO that forms during electrolytic coloring
2Can therefore make the dyestuff cladding that is adsorbed in the oxide film micropore coloring film have good solidity to corrosion, photostabilization and wear resistance, its testing data be as follows:
(1) salt-fog test
Touchstone GB2423
Test-results: 168 hours no changes
(2) Cass test
Touchstone ISO3770
Judgement criteria ISO1462
Test-results: etching time occurred 24 hours for the first time
Opinion rating: 9,3 grades
(3) soak NaCl test (5%NaCl)
Test-results: flood 72 days no changes
(4) soak HCl test (10%HCl)
Test-results: flood 24 hours no changes
(5) soak NaOH test (10%NaOH)
Test-results: flood 24 hours no changes
(6) soak synthetic sea water test (the synthetic sea water batching is pressed the IS4536-7985 standard)
Test-results: flood 72 days no changes
(7) moisture test
Touchstone GB1740-79
Test-results: 168 hours no changes
(8) light fastness test
Touchstone GB6808-86
Test-results: 600 hours no changes
(9) cut resistance test
Testing standard ISO/DP8251
Test number (TN): 100
Test-results: 100 times/um
(10) atomospheric expose test
Test-results: 72 days no changes
3, can calculate the guidance color matching according to colour mixture " adding and principle ", satisfy required shades of colour.
4, technology is simple, good stability.
Describe in detail according to technical process provided by the present invention with embodiment below.
Embodiment: emerald green orchid-electrolytic coloring
The technical process of present embodiment is as follows:
1, surface treatment
Surface treatment comprises oil removing, and scratch brushing, goes out optical processing at alkaline etching.Oil removal treatment is carried out in basic solution, selects the NaOH solution of 45 grams per liters for use, and humidity is controlled at about 65 ℃; It also is to carry out in basic solution that alkaline etching is handled, and selects the NaOH solution of 70 grams per liters for use, and temperature is controlled at about 60 ℃, goes out optical processing and carries out in acidic solution, selects HNO for use
3Solution (1: 1), about 30 ℃ of temperature.
2, sulfur acid anodizing
Sulfur acid anodizing is that workpiece is put into sulphuric acid soln, transfers electric current to 1~2A/dm
2Following continuous current operation.Its processing parameter is: H
2SO
4170 grams per liters, to utmost point Pb, ultimate ratio 1: 1,20 ℃ of groove temperature.
3, dyeing
Workpiece is put into the turquoise blue dye solution carry out, the prescription of dye solution and dyeing parameter are as follows:
Bright blue dyestuff: 4 grams per liters
pH?:6
Temperature: room temperature
Time: 6 minutes (also can determine as required)
4, electrolytic coloring
Workpiece is put into electrolytic colouring liquid carry out, the prescription of electrolytic colouring liquid and electrolytic colouring technology parameter are as follows:
NiSO
4: 40 grams per liters
SnSO
4: 10 grams per liters
H
2SO
4: 15 milliliters/liter
Voltage (interchange): 20 volts
pH: 3
To the utmost point: stainless steel
Time: determine (1~10 minute) according to required face look
" dyeing-electrolytic coloring " meets adding of colour mixture and principle, in the present embodiment, 2 minutes+electrolytic coloring of dyeing 2 minutes, mixing colourity theoretical value is: x
1+2=0.294, y
1+2=0.336; Mixing the colourity measured value is: x
1+2=0.296, y
1+2=0.328.Wherein, x, 3 is a tristimulus coordinates.
5, sealing
Sealing is the workpiece behind dyeing and the electrolytic coloring to be put into boiling water carry out off-period: 20~60 minutes.
When operating above-mentioned each operation, workpiece just can enter next process after should fully washing.
Claims (2)
1. the composite coloration method of aluminium and aluminium alloy, technical process comprises that the surface that oil removing, scratch brushing, alkaline etching, bright dipping are formed gives treatment process, sulfur acid anodizing operation, dyeing process, electrolytic coloring operation and closing step is characterized in that above-mentioned operation carries out in the following order:
(1) processing (oil removing, scratch brushing, alkaline etching, bright dipping) is given on the surface,
(2) sulfur acid anodizing,
(3) dyeing,
(4) electrolytic coloring,
(5) sealing.
2. composite coloration method according to claim 1 is characterized in that:
(1) prescription of dye solution and dyeing parameter
Dyestuff, grams per liter: 1-15
pH: 5-6
Temperature, ℃: 20-80
Time, minute: 1-10
(2) prescription of electrolytic colouring liquid and electrolytic colouring technology parameter
NiSO
4, grams per liter: 20-50
SnSO
4, grams per liter: 1-15
H
2SO
4(dense), milliliter/liter: 5-15
pH: 0.3-5.5
Voltage (interchange) V:10-25
Temperature, ℃: 15-80
Time, minute: 1-10
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN93110838A CN1038856C (en) | 1993-01-16 | 1993-01-16 | Compound color formation for aluminium or its alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN93110838A CN1038856C (en) | 1993-01-16 | 1993-01-16 | Compound color formation for aluminium or its alloy |
Publications (2)
Publication Number | Publication Date |
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CN1089668A CN1089668A (en) | 1994-07-20 |
CN1038856C true CN1038856C (en) | 1998-06-24 |
Family
ID=4988659
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CN93110838A Expired - Fee Related CN1038856C (en) | 1993-01-16 | 1993-01-16 | Compound color formation for aluminium or its alloy |
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CN (1) | CN1038856C (en) |
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CN1053620C (en) * | 1996-09-27 | 2000-06-21 | 四川双泰车轮有限公司 | Spoke type light alloy wheel for motorcycle and production technology thereof |
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CN102888644B (en) * | 2011-07-18 | 2015-09-30 | 汉达精密电子(昆山)有限公司 | Anode treatment method of aluminium alloy |
CN103255463A (en) * | 2012-02-17 | 2013-08-21 | 苏州铭德铝业有限公司 | Golden yellow electrolytic coloring technology |
CN102747401B (en) * | 2012-07-05 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Processing method for aluminum components |
CN102839409B (en) * | 2012-09-07 | 2015-07-22 | 佛山市三水凤铝铝业有限公司 | Method for eliminating tin-nickel dual-salt electrolytic coloring aberration of aluminum profile |
CN103194777B (en) * | 2013-03-27 | 2016-03-30 | 成都阳光铝制品有限公司 | The anode oxidation process of aluminum alloy base material |
CN103469209B (en) * | 2013-09-18 | 2015-10-28 | 沈阳飞机工业(集团)有限公司 | A kind of Al-Li alloy milling preprocessing technical method |
CN106480486A (en) * | 2015-08-26 | 2017-03-08 | 侊东Hitech株式会社 | The classification color method of aluminium and utilize its aluminium |
CN105506706B (en) * | 2016-01-04 | 2018-01-19 | 沈阳建筑大学 | A kind of aluminium alloy anode oxide coloring treatment process |
CN106011835B (en) * | 2016-07-07 | 2017-04-26 | 丽水学院 | Treatment solution used for bluing surface of aluminum alloy |
CN106978618B (en) * | 2017-04-04 | 2018-11-23 | 上饶市鸿基铝业有限公司 | A kind of aluminium alloy high-efficiency environment friendly oxidation technology method |
CN109136509A (en) * | 2018-09-18 | 2019-01-04 | 日泰(上海)汽车标准件有限公司 | High-intensitive colorful aluminium alloy passenger car wheel nut of light weight and preparation method thereof |
CN109487320A (en) * | 2018-12-04 | 2019-03-19 | 江阴南弘新能源科技有限公司 | The oxidation technology of luggage carrier |
CN109468673A (en) * | 2018-12-16 | 2019-03-15 | 桂林理工大学 | A kind of aluminum alloy surface color method |
CN111155158A (en) * | 2020-01-18 | 2020-05-15 | 厦门市求华体育用品有限公司 | Racket appearance anodizing coloring processing technology |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1061056A (en) * | 1990-10-29 | 1992-05-13 | 亨克尔两合股份公司 | The additive agent electrolyte and the process for colouring aluminium that are used for dye bath of aluminium colouring |
-
1993
- 1993-01-16 CN CN93110838A patent/CN1038856C/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1061056A (en) * | 1990-10-29 | 1992-05-13 | 亨克尔两合股份公司 | The additive agent electrolyte and the process for colouring aluminium that are used for dye bath of aluminium colouring |
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CN1089668A (en) | 1994-07-20 |
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