CN102424999A - Treatment method of electrolytic coloring of black color of aluminium alloy anodic oxidation film - Google Patents
Treatment method of electrolytic coloring of black color of aluminium alloy anodic oxidation film Download PDFInfo
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- CN102424999A CN102424999A CN2011103952559A CN201110395255A CN102424999A CN 102424999 A CN102424999 A CN 102424999A CN 2011103952559 A CN2011103952559 A CN 2011103952559A CN 201110395255 A CN201110395255 A CN 201110395255A CN 102424999 A CN102424999 A CN 102424999A
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Abstract
The invention discloses a treatment method of electrolytic coloring of a black color of an aluminium alloy anodic oxidation film, and belongs to the technical field of surface treatment. The method comprises pretreatment, anodic oxidation, AC electrolytic coloring, and sealing; the electrolytic coloring liquid comprises 10-15 g/L of SnSO4, 13-17 g/L of H2SO4, 10-20 g/L of NiSO4, 25-8 g/L of NiCl, 1-2 g/L of tartaric acid, and 0.1-0.2 g/L of cerium sulfate; the coloring technological parameters for the AC electrolytic coloring of a black color are that: the AC voltage is 10-14 V; the coloring liquid temperature is 16-24 DEG C; and the coloring time is 16-22 min. The film with an electrolytic colored black color after anodic oxidation obtained by the method has a pure and uniform color, and is fine and glossy; the fine and glossy black film obtained during electrolytic coloring has a voltage range which is widened nearly twice, and the corrosion resistance to 3.5% sodium chloride of the black film is improved by 30%.
Description
Technical field
The invention belongs to technical field of surface, relate generally to the treatment process that a kind of aluminium alloy anode oxide film electrolytic black; It is the improvement of black technology about aluminium alloy anode oxide film electrolytic.
Background technology
Aluminium and alloy electrolytic coloring technique functions thereof come from the Europe of the forties in last century, are a kind of important channels of aluminium surfacecti proteon and ornamental processing.In the alloy colouring treatment technology, true black rete in occupation of critical role, become the fashion trend in American-European market in recent years gradually.Facts have proved many that rotproofness, weathering resistance, anti-opticity and work-ing life of aluminum alloy surface electrolytic coloring film all will be good than dyeing film in a large number; But aspects such as the colourity of black film outward appearance, homogeneity and weathering resistance are usually unsatisfactory, and especially aterrimus film difficulty is very big to obtain uniform and stable black film.The voltage range of black narrow in electrolysis behind the tradition aluminium alloy anode oxide, and the painted black film that obtains often occurs that black is impure, burnt hair or send out shortcoming such as brown.
Summary of the invention
Goal of the invention:
The present invention is directed to electrolysis behind traditional aluminium alloy anode oxide, the voltage range of black narrow; The painted black film that obtains often occurs that black is impure, burnt hair or send out shortcoming such as brown; Provide a kind of aluminium alloy anode oxide film electrolytic the treatment process of black, efficiently solve the problems referred to above.
Technical scheme is:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and this method is made up of pre-treatment, anodic oxidation, ac electrolytic coloring and four steps of sealing; It is characterized in that: electrolytic colouring liquid consists of SnSO
410 ~ 15g/L, H
2SO
413 ~ 17g/L, NiSO
410 ~ 20g/L, NiCl
25 ~ 8g/L, tartrate 1 ~ 2g/L and cerous sulfate 0.1 ~ 0.2g/L; The coloring process parameter that alternating current electrolysis black is: alternating current voltage is 10 ~ 14V, and the coloring liquid temperature is 16 ~ 24 ℃, and painted time 16 ~ 22min, the duraluminum after anodic oxidation be as negative electrode, and the aluminium electrode is as anode, cathode/annode ratio 1:1.
Pre-treatment step is following:
(1), aluminum alloy surface is removed the oxide compound after washing;
(2), the mixing solutions of duraluminum employing 30g/L sodium hydroxide and 25g/L yellow soda ash carries out alkaline degreasing, taking-up washing behind the 1min;
(3), duraluminum is immersed in alkali erosion in the 50g/L sodium hydroxide solution, taking-up washing behind the 1min;
(4), with duraluminum be immersed in the 200mL/L salpeter solution residual alkali carried out in and bright dipping, take out washing behind the 1min, oven dry.
The anodic oxidation step is following:
Duraluminum after pre-treatment is as anode, and Graphite Electrodes is as negative electrode, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution in carry out anodic oxidation 40min, oxidation voltage is direct current 15V.
The sealing step is following: boiling water sealing 20min; Take out, dry.
Embodiment:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, is made up of pre-treatment, anodic oxidation, ac electrolytic coloring and four steps of sealing:
At first carry out pre-treatment by traditional way, step is following:
(1) aluminum alloy surface is removed the oxide compound after washing; (2) duraluminum adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing, takes out washing behind the 1min; (3) duraluminum is immersed in alkali erosion in sodium hydroxide (50g/L) solution, takes out washing behind the 1min; (4) with duraluminum be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping, take out washing behind the 1min, oven dry.
After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.
Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 in following electrolysis under the coloring process parameter of black, in the coloring liquid of black in electrolysis, carries out electrolytic coloring.
Boiling water sealing 20min is carried out in washing after coloring film is painted then; Take out, dry.
The coloring process parameter that black in above-mentioned electrolysis is: alternating current voltage is 10 ~ 14V, and the coloring liquid temperature is 16 ~ 24 ℃, painted time 16 ~ 22min.
The coloring liquid that black in above-mentioned electrolysis consists of: SnSO
410 ~ 15g/L, H
2SO
413 ~ 17g/L, NiSO
410 ~ 20g/L, NiCl
25 ~ 8g/L, tartrate 1 ~ 2g/L and cerous sulfate 0.1 ~ 0.2g/L.
The outfit method that above-mentioned aluminium alloy anode oxide film electrolytic the related electrolytic colouring liquid of the treatment process of black is: with SnSO
4Be dissolved in and add small amount of H
2SO
4Zero(ppm) water in, NiSO
4, NiCl
2, tartrate and cerous sulfate be that solvent dissolves respectively with zero(ppm) water, then with each solution uniform mixing, in mixed solution, adds surplus H
2SO
4, replenish surplus with zero(ppm) water at last and get final product.
Through specific embodiment the present invention is made further detailed description below; The present invention is not limited to following specific embodiment; Under the scope situation that claim of the present invention is protected, can also make the concrete conversion of various ways, these all belong to protection scope of the present invention.
Experimental example 1:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
412g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
415g/L, NiCl
27g/L, tartrate 1.5g/L and cerous sulfate 0.15g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
412g/L, H
2SO
415g/L, NiSO
415g/L, NiCl
27g/L, tartrate 1.5g/L and cerous sulfate 0.15g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 13V, and the coloring liquid temperature is 20 ℃, painted time 20min.
Experimental example 2:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
412g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
418g/L, NiCl
25g/L, tartrate 1.5g/L and cerous sulfate 0.20g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
412g/L, H
2SO
415g/L, NiSO
418g/L, NiCl
25g/L, tartrate 1.5g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 12V, and the coloring liquid temperature is 20 ℃, painted time 20min.
Experimental example 3:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
413g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
415g/L, NiCl
27g/L, tartrate 1.0g/L and cerous sulfate 0.2g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
413g/L, H
2SO
415g/L, NiSO
415g/L, NiCl
27g/L, tartrate 1g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 12V, and the coloring liquid temperature is 20 ℃, painted time 20min.
Experimental example 4:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
412g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
415g/L, NiCl
27g/L, tartrate 1.5g/L and cerous sulfate 0.15g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
412g/L, H
2SO
415g/L, NiSO
415g/L, NiCl
27g/L, tartrate 1.5g/L and cerous sulfate 0.15g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 14V, and the coloring liquid temperature is 18 ℃, painted time 18min.
Experimental example 5:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
412g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
418g/L, NiCl
25g/L, tartrate 1.5g/L and cerous sulfate 0.20g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
412g/L, H
2SO
415g/L, NiSO
418g/L, NiCl
25g/L, tartrate 1.5g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 10V, and the coloring liquid temperature is 22 ℃, painted time 20min.
Experimental example 6:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
413g/L is dissolved in and adds 3 g/L H
2SO
4Zero(ppm) water in, NiSO
415g/L, NiCl
27g/L, tartrate 1.0g/L and cerous sulfate 0.2g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
412g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
413g/L, H
2SO
415g/L, NiSO
415g/L, NiCl
27g/L, tartrate 1.0g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 12V, and the coloring liquid temperature is 22 ℃, painted time 16min.
Experimental example 7:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
415g/L is dissolved in and adds 4 g/L H
2SO
4Zero(ppm) water in, NiSO
410g/L, NiCl
28g/L, tartrate 2.0g/L and cerous sulfate 0.1g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
413g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
415g/L, H
2SO
417g/L, NiSO
410g/L, NiCl
28g/L, tartrate 2.0g/L and cerous sulfate 0.1g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 10V, and the coloring liquid temperature is 24 ℃, painted time 22min.
Experimental example 8:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
415g/L is dissolved in and adds 4 g/L H
2SO
4Zero(ppm) water in, NiSO
410g/L, NiCl
28g/L, tartrate 2.0g/L and cerous sulfate 0.1g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
413g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
415g/L, H
2SO
417g/L, NiSO
410g/L, NiCl
28g/L, tartrate 2.0g/L and cerous sulfate 0.1g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 14V, and the coloring liquid temperature is 16 ℃, painted time 22min.
Experimental example 9:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
410g/L is dissolved in and adds 2 g/L H
2SO
4Zero(ppm) water in, NiSO
420 g/L, NiCl
26 g/L, tartrate 2.0g/L and cerous sulfate 0.2 g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
411g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
410 g/L, H
2SO
413 g/L, NiSO
420g/L, NiCl
26g/L, tartrate 2.0g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 13V, and the coloring liquid temperature is 24 ℃, painted time 16min.
Experimental example 10:
A kind of aluminium alloy anode oxide film electrolytic the treatment process of black, and at first with the duraluminum pre-treatment: the oxide compound after washing is removed on the surface, adopts the mixing solutions of sodium hydroxide (30g/L), yellow soda ash (25g/L) to carry out alkaline degreasing; Take out washing behind the 1min; Be immersed in sodium hydroxide (50g/L) solution alkali erosion, take out washing behind the 1min, be immersed in the salpeter solution (200mL/L) residual alkali carried out in and bright dipping; Take out washing behind the 1min, oven dry.After the pre-treatment, as anode, Graphite Electrodes is as negative electrode with aluminum alloy specimen, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution carry out anodic oxidation 40min, oxidation voltage is direct current 15V.Duraluminum after anodic oxidation is as negative electrode, and the aluminium electrode is as anode, and cathode/annode ratio 1:1 carries out ac electrolytic coloring in the coloring liquid of black in electrolysis, with the distillation washing, carries out boiling water sealing 20min then after coloring film is painted, takes out, oven dry.
Coloring liquid is by SnSO
410g/L is dissolved in and adds 2 g/L H
2SO
4Zero(ppm) water in, NiSO
420 g/L, NiCl
26 g/L, tartrate 2.0g/L and cerous sulfate 0.2 g/L with zero(ppm) water be solvent dissolve respectively, then with each solution uniform mixing, in mixed solution, add H
2SO
411g/L replenishes surplus with zero(ppm) water at last and is mixed with and forms.The electrolytic colouring liquid that obtains consists of: SnSO
410 g/L, H
2SO
413 g/L, NiSO
420g/L, NiCl
26g/L, tartrate 2.0g/L and cerous sulfate 0.2g/L.
The coloring process parameter of black in electrolysis, it is characterized in that: alternating current voltage is 12V, and the coloring liquid temperature is 24 ℃, painted time 18min.
Conclusion: through experiment showed, obtain aluminium alloy anode oxide through the inventive method after electrolysis the film color and luster of black pure evenly, fine and smooth bright and clean; The voltage range that obtains fine and smooth bright and clean black film during electrolytic coloring is widened nearly one times; The ability of anti-3.5% sodium-chlor of black film improves 30%; Efficiently solving electrolysis behind traditional aluminium alloy anode oxide, the voltage range of black narrow, and the painted black film that obtains often occurs that black is impure, burnt hair or send out problem such as brown.
The corrosion current contrast of sample after painted in 3.5%NaCl solution (obtained by the Tafel polarization curve) as follows: I
1During for traditional optimal processing parameter; I
2During for this experimental technique parameter.
Claims (4)
1. an aluminium alloy anode oxide film electrolytic the treatment process of black, and this method is made up of pre-treatment, anodic oxidation, ac electrolytic coloring and four steps of sealing; It is characterized in that: electrolytic colouring liquid consists of SnSO
410 ~ 15g/L, H
2SO
413 ~ 17g/L, NiSO
410 ~ 20g/L, NiCl
25 ~ 8g/L, tartrate 1 ~ 2g/L and cerous sulfate 0.1 ~ 0.2g/L; The coloring process parameter that alternating current electrolysis black is: alternating current voltage is 10 ~ 14V, and the coloring liquid temperature is 16 ~ 24 ℃, and painted time 16 ~ 22min, the duraluminum after anodic oxidation be as negative electrode, and the aluminium electrode is as anode, cathode/annode ratio 1:1.
2. the treatment process of black according to the said a kind of aluminium alloy anode oxide film electrolytic of claim 1, it is characterized in that: pre-treatment step is following:
(1), aluminum alloy surface is removed the oxide compound after washing;
(2), the mixing solutions of duraluminum employing 30g/L sodium hydroxide and 25g/L yellow soda ash carries out alkaline degreasing, taking-up washing behind the 1min;
(3), duraluminum is immersed in alkali erosion in the 50g/L sodium hydroxide solution, taking-up washing behind the 1min;
(4), with duraluminum be immersed in the 200mL/L salpeter solution residual alkali carried out in and bright dipping, take out washing behind the 1min, oven dry.
3. the treatment process of black according to the said a kind of aluminium alloy anode oxide film electrolytic of claim 1, it is characterized in that: the anodic oxidation step is following:
Duraluminum after pre-treatment is as anode, and Graphite Electrodes is as negative electrode, cathode/annode ratio 1:1, at room temperature, in containing Al
3+170g/L vitriolic anodizing solution in carry out anodic oxidation 40min, oxidation voltage is direct current 15V.
4. the processing method of black based on the said a kind of aluminium alloy anode oxide film electrolytic of claim 1, it is characterized in that: the sealing step is following: boiling water sealing 20min; Take out, dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395255.9A CN102424999B (en) | 2011-12-02 | 2011-12-02 | A kind of aluminium alloy anode oxide film electrolytic the treatment process of black |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395255.9A CN102424999B (en) | 2011-12-02 | 2011-12-02 | A kind of aluminium alloy anode oxide film electrolytic the treatment process of black |
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| Publication Number | Publication Date |
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| CN102424999A true CN102424999A (en) | 2012-04-25 |
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| CN103014808A (en) * | 2012-12-14 | 2013-04-03 | 中国计量学院 | Method for preparing aluminum alloy anodic oxidation film by tartaric acid anodic oxidation |
| CN104284614A (en) * | 2012-05-16 | 2015-01-14 | Seb公司 | Method for obtaining a cooking container comprising an electrochemically coloured anodised outer face |
| CN104342736A (en) * | 2014-10-31 | 2015-02-11 | 湖州织里天荣铝材添加剂厂 | Aluminum alloy oxide film nickel-free normal-temperature sealing process and sealing agent |
| CN105063717A (en) * | 2015-08-05 | 2015-11-18 | 山东核电设备制造有限公司 | Anodizing and electrolytic coloring method for high-manganese aluminum alloy |
| CN107059091A (en) * | 2017-06-08 | 2017-08-18 | 浙江春旭铝业有限公司 | A kind of aluminium alloy corrosion-resistant surface processing method |
| CN108707946A (en) * | 2018-08-22 | 2018-10-26 | 内蒙古第机械集团股份有限公司 | A kind of aluminium alloy electrolysis colorant |
| CN109280950A (en) * | 2018-10-19 | 2019-01-29 | 肇庆亚洲铝厂有限公司 | The method and aluminum profile of production black aluminum profile are coloured using anodic oxidation single nickel salt |
| CN110195249A (en) * | 2019-06-06 | 2019-09-03 | 苏州晶俊新材料科技有限公司 | A kind of anodic oxidation preparation method of antibacterial, colored aluminum or aluminum alloy |
| US20190309434A1 (en) * | 2018-04-09 | 2019-10-10 | Dura Operating, Llc | Method for producing an aluminium component having a coloured surface |
| CN110685002A (en) * | 2019-10-23 | 2020-01-14 | 佛山科学技术学院 | Aluminum alloy surface treatment method |
| CN111088511A (en) * | 2020-01-10 | 2020-05-01 | 董翠萍 | Aluminum profile oxidation coloring process |
| 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 |
| CN113322470A (en) * | 2021-06-07 | 2021-08-31 | 湖北欣洁顺幕墙材料有限公司 | Surface treatment process and processing method of aluminum veneer for curtain wall |
| CN114059127A (en) * | 2021-12-14 | 2022-02-18 | 苏州长风航空电子有限公司 | Preparation method of high-temperature-resistant anodic oxidation film layer |
| CN115449878A (en) * | 2022-08-24 | 2022-12-09 | 四会市建鑫装饰材料有限公司 | Black coloring process for aluminum profile |
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| CN104284614A (en) * | 2012-05-16 | 2015-01-14 | Seb公司 | Method for obtaining a cooking container comprising an electrochemically coloured anodised outer face |
| CN106419496A (en) * | 2012-05-16 | 2017-02-22 | Seb公司 | Method for obtaining a cooking container comprising an electrochemically colored anodized outer face |
| CN103014808B (en) * | 2012-12-14 | 2015-07-29 | 中国计量学院 | The method of aluminium alloy anode oxide film is prepared with tartrate anodic oxidation |
| CN103014808A (en) * | 2012-12-14 | 2013-04-03 | 中国计量学院 | Method for preparing aluminum alloy anodic oxidation film by tartaric acid anodic oxidation |
| CN104342736A (en) * | 2014-10-31 | 2015-02-11 | 湖州织里天荣铝材添加剂厂 | Aluminum alloy oxide film nickel-free normal-temperature sealing process and sealing agent |
| CN105063717A (en) * | 2015-08-05 | 2015-11-18 | 山东核电设备制造有限公司 | Anodizing and electrolytic coloring method for high-manganese aluminum alloy |
| CN107059091A (en) * | 2017-06-08 | 2017-08-18 | 浙江春旭铝业有限公司 | A kind of aluminium alloy corrosion-resistant surface processing method |
| CN107059091B (en) * | 2017-06-08 | 2019-03-01 | 浙江春旭铝业有限公司 | A kind of aluminium alloy corrosion-resistant surface processing method |
| US20190309434A1 (en) * | 2018-04-09 | 2019-10-10 | Dura Operating, Llc | Method for producing an aluminium component having a coloured surface |
| CN108707946A (en) * | 2018-08-22 | 2018-10-26 | 内蒙古第机械集团股份有限公司 | A kind of aluminium alloy electrolysis colorant |
| CN109280950A (en) * | 2018-10-19 | 2019-01-29 | 肇庆亚洲铝厂有限公司 | The method and aluminum profile of production black aluminum profile are coloured using anodic oxidation single nickel salt |
| CN110195249A (en) * | 2019-06-06 | 2019-09-03 | 苏州晶俊新材料科技有限公司 | A kind of anodic oxidation preparation method of antibacterial, colored aluminum or aluminum alloy |
| CN110685002A (en) * | 2019-10-23 | 2020-01-14 | 佛山科学技术学院 | Aluminum alloy surface treatment method |
| CN111088511A (en) * | 2020-01-10 | 2020-05-01 | 董翠萍 | Aluminum profile oxidation coloring process |
| 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 |
| CN113322470A (en) * | 2021-06-07 | 2021-08-31 | 湖北欣洁顺幕墙材料有限公司 | Surface treatment process and processing method of aluminum veneer for curtain wall |
| CN114059127A (en) * | 2021-12-14 | 2022-02-18 | 苏州长风航空电子有限公司 | Preparation method of high-temperature-resistant anodic oxidation film layer |
| CN115449878A (en) * | 2022-08-24 | 2022-12-09 | 四会市建鑫装饰材料有限公司 | Black coloring process for aluminum profile |
| CN115449878B (en) * | 2022-08-24 | 2023-08-11 | 四会市建鑫装饰材料有限公司 | Black coloring process for aluminum profile |
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Effective date of registration: 20190320 Address after: 523000 Louver Industrial Zone, Liaobu Town, Dongguan City, Guangdong Province Patentee after: Dongguan Rui Yong Hardware Co., Ltd. Address before: 110870 No. 111 Shenyang West Road, Shenyang economic and Technological Development Zone, Liaoning Patentee before: Shenyang University of Technology |