CN104278309A - Surface treatment method of aluminum and aluminum alloy and aluminum product - Google Patents
Surface treatment method of aluminum and aluminum alloy and aluminum product Download PDFInfo
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- CN104278309A CN104278309A CN201310283985.9A CN201310283985A CN104278309A CN 104278309 A CN104278309 A CN 104278309A CN 201310283985 A CN201310283985 A CN 201310283985A CN 104278309 A CN104278309 A CN 104278309A
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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
- C25D11/12—Anodising more than once, e.g. in different baths
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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
Abstract
The invention provides a surface treatment method of aluminum and an aluminum alloy. The surface treatment method comprises the following steps of carrying out primary anodic oxidation treatment on a base material to form a primary alumina layer on the surface of the base material, carrying out primary dyeing treatment on the base material subjected to the primary anodic oxidation treatment so that the base material has a color, carrying out diamond-based engraving treatment on the base material subjected to the primary dyeing treatment to remove a part of the primary alumina layer on the surface of the base material and to expose a part of the base material so that patterns are formed on the surface of the base material, carrying out secondary anodic oxidation treatment on the base material subjected to the diamond-based engraving treatment so that a second alumina layer is formed on the area uncovered with the first alumina layer, and carrying out secondary dyeing treatment on the base material subjected to the secondary anodic oxidation treatment so that the base material has another color. The invention provides an aluminum product obtained by the aluminum and aluminum alloy surface treatment method.
Description
Technical field
The invention relates to a kind of surface treatment method of Al and Alalloy and aluminum products obtained after the method process.
Background technology
In recent years, the consumption electronic products such as color, the diversified mobile phone of pattern, mp3 are subject to liking of human consumer.The base materials such as aluminum or aluminum alloy are formed the anode oxide film with microvoid structure by the preparation method that the existing surface in base materials such as aluminum or aluminum alloy forms colored oxide film at sulfuric acid Anodic Oxidation, then in containing the solution of organic dye, dyeing process is carried out to base material, pass through adsorption, make dyestuff enter into oxide film micropore, make the substrate surfaces such as aluminum or aluminum alloy have color.Again process is covered to base material, anodic oxidation is carried out again to base material and processes, with the effect making base material have polychrome with dyeing.But this method can only form simple color scheme in the surface of base material, the demand that people combine with pattern variation for polychrome can not be met.
Summary of the invention
Given this, a kind of surface treatment method obtaining the Al and Alalloy that multicolour combines with pattern variation is provided.
In addition, there is a need to provide a kind of aluminum products obtained through aforesaid method.
A surface treatment method for Al and Alalloy, it comprises the following steps:
First time anodic oxidation treatment is carried out to a base material, to form the first alumina layer on the surface of this base material;
To through first time anodic oxidation treatment described base material carry out first time and to dye process, present a color to make this base material;
The process of diamond engraving is carried out to the described base material through first time dyeing process, to remove part first alumina layer of this substrate surface, thus exposed portion base material, make the surface of base material form pattern;
Second time anodic oxidation treatment is carried out to the described base material through the process of diamond engraving, forms the second alumina layer with the region not being coated with the first alumina layer at this base material;
Carry out second time to the described base material through second time anodic oxidation treatment to dye process, present another color to make this base material.
A kind of aluminum products, comprise base material, described aluminum products also comprise and are formed at the first alumina layer on base material and the second alumina layer, this first alumina layer is divided into some regions, this second alumina layer is also divided into some regions, and each of each region of the second alumina layer and the first alumina layer is interregional every arranging and contacting with each other.
The surface treatment method of above-mentioned Al and Alalloy dye with first time by first time anodic oxidation treatment and process thus form a color on the surface of base material, then is carved by diamond and process milling truncated section first alumina layer to form specific pattern on the surface of base material.Dye to process by second time anodic oxidation treatment and second time afterwards and form another color on the surface of the base material not being coated with the first alumina layer, thus the aluminum products that acquisition polychrome combines with pattern variation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the aluminum products of present pre-ferred embodiments.
Fig. 2 is for aluminum products described in Fig. 1 are along the sectional view of II-II line.
Main element nomenclature
| Aluminum products | 10 |
| Base material | 11 |
| First alumina layer | 12 |
| First aqua oxidation aluminium lamination | 14 |
| Second alumina layer | 16 |
| Second aqua oxidation aluminium lamination | 18 |
| Micropore | 121、161 |
| Staining agent | 123、163 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 and Fig. 2, the surface treatment method of the Al and Alalloy of the present invention one better embodiment, it comprises the following steps:
The base material 11 that one is pending is provided.The material of this base material 11 can be aluminum or aluminum alloy.
Dehydrated alcohol is adopted to carry out ultrasonic cleaning to described base material 11, to remove the greasy dirt on this base material 11 surface.The time of described ultrasonic cleaning can be 25 ~ 35 minutes.
First time anodic oxidation treatment is carried out to the described base material 11 after ultrasonic cleaning.Described first time, anodic oxidation treatment was: with the described base material 11 after ultrasonic cleaning for anode, stainless steel is negative electrode, the voltage of 10 ~ 15V is applied between anode and negative electrode, with concentration be the sulfuric acid of 160 ~ 220g/L for electrolytic solution, make base material 11 temperature be in the electrolytic solution of 16 ~ 18 DEG C react 30 ~ 45min.Described first time anodic oxidation treatment process in, H
2o water molecules can ionize and generate H
+ion and OH
-ion, H
+ion is reduced and generates H near negative electrode
2.Work as OH
-time near ionic transfer to anode, generate H
2o water molecules and O
2, O
2to react with described base material 11 thus at the first alumina layer 12 of described base material 11 Surface Creation, the thickness of this first alumina layer 12 is 10 ~ 15 μm.The surface of this first alumina layer 12 is formed with some micropores 121.
To through first time anodic oxidation treatment described base material 11 carry out first time and to dye process.The dyeing of described first time is treated to: by through first time anodic oxidation treatment described base material 11 to impregnated in temperature be 1 ~ 2min in the staining fluid of 30 ~ 50 DEG C.Staining agent 123 containing 3 ~ 10g/L in this staining fluid, this staining agent 123 can be the organic dye of dark system or the inorganic dyestuff of dark system.In this dyeing course, staining agent 123 is adsorbed on described some micropores 121 by diffusion, makes this base material 11 have a color.
First time sealing pores is carried out, to be fixed in described some micropores 121 by described staining agent 123 to the described base material 11 through first time dyeing process.Described first time, sealing pores can adopt boiling water sealing hole, steam sealing of hole, nickel acetate sealing of hole, potassium bichromate sealing of hole, single nickel salt sealing of hole, nickel acetate sealing of hole, stearic acid sealing or cold seal hole.
The present embodiment preferably adopts boiling water sealing hole.This boiling water sealing hole is specially: the described base material 11 of dyed process is inserted 30 ~ 45min in a boiling water groove, in described boiling water groove, the water that temperature is 95 ~ 100 DEG C is housed.After this boiling water sealing hole process, form the first transparent aqua oxidation aluminium lamination 14 on the surface of described first alumina layer 12.The thickness of this first aqua oxidation aluminium lamination 14 can be 10 ~ 15 μm.
Please again consult Fig. 1, to through first time sealing pores described base material 11 carry out diamond engraving process, to form specific pattern on the surface of base material 11.Described diamond engraving is treated to: provide a diamond engraving machine (not shown), this diamond engraving machine comprises cutter and tool; By through first time sealing pores described base material 11 be positioned on this tool; Open this diamond engraving machine, tool drives base material 11 to rotate, the cutter of high speed rotating is adopted to carry out milling to this base material 11 surface, to remove part first alumina layer 12 and the first aqua oxidation aluminium lamination 14 on this base material 11 surface, thus exposed portion base material 11, make described by the specific pattern of part thereof 11 surface presentation exposed, the part wherein exposing base material 11 presents high brightness.The time of this diamond engraving process is 1 ~ 3min, and the rotating speed of cutter is 2000 ~ 2500r/min, and the lower cutter degree of depth is 20 ~ 30 μm, and its precision controlling is between-0.02mm ~ 0.02mm.Understandable, different patterns can be formed on the surface of base material 11 by adjustment cutter from the angle between base material.
Second time anodic oxidation treatment is carried out to the described base material 11 through the process of diamond engraving.Described second time anodic oxidation treatment is: with the described base material 11 through the process of diamond engraving for anode, stainless steel is negative electrode, the voltage of 8 ~ 13V is applied between anode and negative electrode, with concentration be the sulfuric acid of 160 ~ 220g/L for electrolytic solution, make base material 11 temperature be in the sulphuric acid soln of 16 ~ 18 DEG C react 30 ~ 45 minutes.In the reaction process of second time anodic oxidation treatment, H
2o water molecules can ionize and generate H
+ion and OH
-ion, H
+ion is reduced and generates H near negative electrode
2.Work as OH
-time near ionic transfer to anode, generate H
2o water molecules and O
2, O
2the region not being coated with described first alumina layer 12 with described base material 11 is reacted, thus be not coated with Area generation second alumina layer 16 of the first alumina layer 12 and the first aqua oxidation aluminium lamination 14, and the thickness of this second alumina layer 16 is 10 ~ 15 μm.This first alumina layer 12 alternately contacts in the surface of this base material 11 with this second alumina layer 16.The surface of this second alumina layer 16 is formed with some micropores 161.
Understandable, in the surface-coated one ink protective layer of this first aqua oxidation aluminium lamination 14, make the first alumina layer 12 and the first aqua oxidation aluminium lamination 14 not breakdown when second time anodic oxidation treatment.
Understandable, directly second time anodic oxidation treatment is carried out to the base material 11 after the process of diamond engraving, because second time anodic oxidation treatment adopts lower voltage, comparatively the voltage that adopts of first time anodic oxidation is low, make the first alumina layer 12 and the first aqua oxidation aluminium lamination 14 not breakdown when second time anodic oxidation treatment.
Carry out second time to the described base material 11 through second time anodic oxidation treatment to dye process.The dyeing of described second time is treated to: the described base material 11 through second time anodic oxidation treatment being impregnated in a temperature is in the staining fluid of 30 ~ 50 DEG C 50 ~ 70 seconds.Staining agent 163 containing 1 ~ 3g/L in this staining fluid, this staining agent 163 can be the organic dye of light color system or the inorganic dyestuff of light color system.In this dyeing course, staining agent 163 is adsorbed on described some micropores 161 by diffusion, makes this base material 11 have another color, thus the aluminum products 10(that acquisition polychrome combines with pattern variation joins Fig. 1).Due to the dyestuff that this staining agent 163 is light color system, and the surface coverage of this first alumina layer 12 has this first aqua oxidation aluminium lamination 14, makes the Color influences of second time dyeing process to the dyeing process of this first time less.
Second time sealing pores is carried out to the described base material 11 through second time dyeing process.Described second sealing pores can adopt boiling water sealing hole, steam sealing of hole, nickel acetate sealing of hole, potassium bichromate sealing of hole, single nickel salt sealing of hole, nickel acetate sealing of hole, stearic acid sealing or cold seal hole.
The present embodiment preferably adopts boiling water sealing hole.This boiling water sealing hole is specially: the described base material 11 through second time dyeing process is inserted 30 ~ 45min in a boiling water groove, in described boiling water groove, the water that temperature is 95 ~ 100 DEG C is housed.After this boiling water sealing hole process, form the second transparent aqua oxidation aluminium lamination 18 on the surface of described second alumina layer 16.The thickness of this second aqua oxidation aluminium lamination 18 can be 10 ~ 15 μm.Because this second alumina layer 16 is transparent layer with this second aqua oxidation aluminium lamination 18, this staining agent 163 is light color system color, this staining agent 123 for dark color be color, part thereof 11 after the process of diamond engraving presents high brightness, makes these aluminum products 10 present high brightness through the region of diamond engraving process.This first alumina layer 12 alternately contacts with this second alumina layer 16, makes this base material 11 present light and dark effect.
Understandable, the surface treatment method of described Al and Alalloy also can comprise and carries out the process of second time diamond engraving to the described base material 11 through second time sealing pores, afterwards again to base material carry out third time anodic oxidation treatment and third time to dye process, thus obtain light and dark, the diversified aluminum products 10 combined of polychrome, pattern.
Please again consult Fig. 2, the aluminum products 10 of a preferred embodiment of the present invention comprise a base material 11, be formed at first alumina layer 12 on base material 11 surface, be formed at the first aqua oxidation aluminium lamination 14 on the first alumina layer 12 surface, be formed at second alumina layer 16 on base material 11 surface and be formed at the second aqua oxidation aluminium lamination 18 on the second alumina layer 16 surface.This first alumina layer 12 is divided into some regions, and this second alumina layer 16 is also divided into some regions, and each of each region of the second alumina layer 16 and the first alumina layer 12 is interregional every arranging and contacting with each other.In like manner, this the first aqua oxidation aluminium lamination 14 is divided into the some regions corresponding with the first alumina layer 12, this the second aqua oxidation aluminium lamination 18 is divided into the some regions corresponding with the second alumina layer 16, and each of each region of this second aqua oxidation aluminium lamination 18 and the first aqua oxidation aluminium lamination 14 is interregional every arranging and contacting with each other.
Described first alumina layer 12 is formed at the surface of base material 11 by anodised mode.The thickness of this first alumina layer 12 can be 10 ~ 15 μm.This first alumina layer 12 is formed with some micropores 121.Staining agent 123 is adsorbed in this some micropore 121, makes described base material 11 have a color.
Described first aqua oxidation aluminium lamination 14 is attached on this first alumina layer 12 by the mode of sealing of hole.The thickness of this first aqua oxidation aluminium lamination 14 is 10 ~ 15 μm.
Described second alumina layer 16 is formed at the surface of the base material 11 not being coated with the first alumina layer 12 and the first aqua oxidation aluminium lamination 14 by anodised mode.This second alumina layer 16 thickness can be 10 ~ 15 μm.This second alumina layer 16 is formed with some micropores 161.Staining agent 163 is adsorbed in this some micropore 161, makes described base material 11 have another color.The described surface presentation high brightness not being coated with the base material 11 of the first alumina layer 12 and the first aqua oxidation aluminium lamination 14, make the region being coated with this second alumina layer 16 of these aluminum products 10 present high brightness, thus obtain light and dark, the diversified aluminum products 10 combined of polychrome, pattern.
Described second aqua oxidation aluminium lamination 18 is attached on this second alumina layer 16 by the mode of sealing of hole.The thickness of this second aqua oxidation aluminium lamination 18 is 10 ~ 15 μm.
Below by embodiment, the present invention is specifically described.
Embodiment 1:
Anodic oxidation treatment for the first time: with base material 11 for anode, stainless steel is negative electrode, the voltage of 10V is applied between anode and negative electrode, base material 11 is made to be react 45min in the electrolytic solution of 18 DEG C in temperature, to form one first alumina layer 12 on base material 11 surface, the sulfuric acid wherein containing 220g/L in this electrolytic solution.The thickness of this first alumina layer 12 is 15 μm.The surface of this first alumina layer 12 is formed with some micropores 121.
First time dyes process: by through first time anodic oxidation treatment described base material 11 to impregnated in a temperature be 2min in the staining fluid of 50 DEG C.Staining agent 123 containing 10g/L in this staining fluid.In this dyeing course, staining agent 123 is adsorbed in described some micropores 121 by diffusion, makes base material 11 have a color.
Sealing pores for the first time: the described base material 11 through first time dyeing process is inserted 45min in a boiling water groove, in described boiling water groove, the water that temperature is 95 DEG C is housed.After this boiling water sealing hole process, form one first aqua oxidation aluminium lamination 14 on the surface of described first alumina layer 12.The thickness of this first aqua oxidation aluminium lamination 14 can be 15 μm.
Diamond engraving process: adopt the cutter of diamond engraving machine to carry out milling to this base material 11 surface, thus form specific pattern on this base material 11 surface.Its medium speed is 2500r/min, and the lower cutter degree of depth of this cutter is 30 μm, and its precision controlling is 0.02mm.In this diamond engraving treating processes, cutter can cut away part first alumina layer 12 and the first aqua oxidation aluminium lamination 14 on base material 11 surface, with exposed portion base material 11.
Second time anodic oxidation treatment: with the described base material 11 through the process of diamond engraving for anode, stainless steel is negative electrode, the voltage of 8V is applied between anode and negative electrode, make base material 11 be react 45min in the electrolytic solution of 18 DEG C in temperature, thus be not coated with the first alumina layer 12 and the first aqua oxidation aluminium lamination 14 base material 11 Surface Creation one second alumina layer 16.Sulfuric acid wherein containing 220g/L in this electrolytic solution.The thickness of this second alumina layer 16 is 15 μm.The surface of this second alumina layer 16 is formed with some micropores 161.
Second time dyes process: the described base material 11 through second time anodic oxidation treatment being impregnated in a temperature is in the staining fluid of 50 DEG C 70 seconds.Staining agent 163 containing 3g/L in this staining fluid.In this dyeing course, staining agent 163 is adsorbed in described some micropores 161 by diffusion, makes base material 11 have another color.
Second time sealing pores: the described base material 11 through second time dyeing process is inserted 45min in a boiling water groove, in described boiling water groove, the water that temperature is 95 DEG C is housed.After this boiling water sealing hole process, form the second aqua oxidation aluminium lamination 18 on the surface of described second alumina layer 16.The thickness of this second aqua oxidation aluminium lamination 18 can be 15 μm.
Embodiment 2:
Anodic oxidation treatment for the first time: with base material 11 for anode, stainless steel is negative electrode, the voltage of 12V is applied between anode and negative electrode, base material 11 is made to be react 40min in the electrolytic solution of 17 DEG C in temperature, to form the first alumina layer 12 on base material 11 surface, the sulfuric acid wherein containing 200g/L in this electrolytic solution.The thickness of this first alumina layer 12 is 12 μm.The surface of this first alumina layer 12 is formed with some micropores 121.
First time dyes process: by through first time anodic oxidation treatment described base material 11 to impregnated in a temperature be 1.5min in the staining fluid of 40 DEG C.Staining agent 123 containing 5g/L in this staining fluid.In this dyeing course, staining agent 123 is adsorbed in described some micropores 121 by diffusion, makes base material 11 have a color.
Sealing pores for the first time: the described base material 11 through first time dyeing process is inserted 40min in a boiling water groove, in described boiling water groove, the water that temperature is 98 DEG C is housed.After this boiling water sealing hole process, form one first aqua oxidation aluminium lamination 14 on the surface of described first alumina layer 12.The thickness of this first aqua oxidation aluminium lamination 14 can be 12 μm.
Diamond engraving process: adopt the cutter of diamond engraving machine to carry out milling to this base material 11 surface, thus form specific pattern on this base material 11 surface.Its medium speed is 2200r/min, and the lower cutter degree of depth of this cutter is 24 μm, and its precision controlling is 0mm.In this diamond engraving treating processes, cutter can cut away part first aqua oxidation aluminium lamination 14 and first alumina layer 12 on base material 11 surface, with exposed portion base material 11.
Second time anodic oxidation treatment: with the described base material 11 through the process of diamond engraving for anode, stainless steel is negative electrode, the voltage of 10V is applied between anode and negative electrode, make base material 11 be react 40min in the electrolytic solution of 17 DEG C in temperature, thus be not coated with Surface Creation one second alumina layer 16 of base material 11 of the first alumina layer 12 and the first aqua oxidation aluminium lamination 14.Sulfuric acid wherein containing 200g/L in this electrolytic solution.The thickness of this second alumina layer 16 is 12 μm.The surface of this second alumina layer 16 is formed with some micropores 161.
Second time dyes process: the described base material 11 through second time anodic oxidation treatment being impregnated in a temperature is in the staining fluid of 40 DEG C 60 seconds.Staining agent 163 containing 2g/L in this staining fluid.In this dyeing course, staining agent 163 is adsorbed in described some micropores 161 by diffusion, makes base material 11 have another color.
Second time sealing pores: the described base material 11 through second time dyeing process is inserted 40min in a boiling water groove, in described boiling water groove, the water that temperature is 98 DEG C is housed.After this boiling water sealing hole process, form the second aqua oxidation aluminium lamination 18 on the surface of described second alumina layer 16.The thickness of this second aqua oxidation aluminium lamination 18 can be 12 μm.
Embodiment 3:
Anodic oxidation treatment for the first time: with base material 11 for anode, stainless steel is negative electrode, the voltage of 15V is applied between anode and negative electrode, base material 11 is made to be react 30min in the electrolytic solution of 16 DEG C in temperature, to form one first alumina layer 12 on base material 11 surface, the sulfuric acid wherein containing 160g/L in this electrolytic solution.The thickness of this first alumina layer 12 is 10 μm.The surface of this first alumina layer 12 is formed with some micropores 121.
First time dyes process: by through first time anodic oxidation treatment described base material 11 to impregnated in a temperature be 1min in the staining fluid of 30 DEG C.Staining agent 123 containing 3g/L in this staining fluid.In this dyeing course, staining agent 123 is adsorbed in described some micropores 121 by diffusion, makes base material 11 have a color.
Sealing pores for the first time: the described base material 11 through first time dyeing process is inserted 30min in a boiling water groove, in described boiling water groove, the boiling water that temperature is 100 DEG C is housed.After this boiling water sealing hole process, form one first aqua oxidation aluminium lamination 14 on the surface of described first alumina layer 12.The thickness of this first aqua oxidation aluminium lamination 14 can be 10 μm.
Diamond engraving process: adopt the cutter of diamond engraving machine to carry out milling to this base material 11 surface, thus form specific pattern on this base material 11 surface.Its medium speed is 2000r/min, and the lower cutter degree of depth of this cutter is 20 μm, and its precision controlling is-0.02mm.In this diamond engraving treating processes, cutter can cut away part first aqua oxidation aluminium lamination 14 and first alumina layer 12 on base material 11 surface, with exposed portion base material 11.
Second time anodic oxidation treatment: with the described base material 11 through the process of diamond engraving for anode, stainless steel is negative electrode, the voltage of 13V is applied between anode and negative electrode, make base material 11 be react 30min in the electrolytic solution of 17 DEG C in temperature, thus be not coated with Surface Creation one second alumina layer 16 of base material 11 of the first alumina layer 12 and the first aqua oxidation aluminium lamination 14.Sulfuric acid wherein containing 160g/L in this electrolytic solution.The thickness of this second alumina layer 16 is 10 μm.The surface of this second alumina layer 16 is formed with some micropores 161.
Second time dyes process: the described base material 11 through second time anodic oxidation treatment being impregnated in a temperature is in the staining fluid of 30 DEG C 50 seconds.Staining agent 163 containing 1g/L in this staining fluid.In this dyeing course, staining agent 163 is adsorbed in described some micropores 161 by diffusion, makes base material 11 have another color.
Second time sealing pores: the described base material 11 through second time dyeing process is inserted 30min in a boiling water groove, in described boiling water groove, the boiling water that temperature is 100 DEG C is housed.After this boiling water sealing hole process, form the second aqua oxidation aluminium lamination 18 on the surface of described second alumina layer 16.The thickness of this second aqua oxidation aluminium lamination 18 can be 10 μm.
Claims (10)
1. a surface treatment method for Al and Alalloy, it comprises the following steps:
First time anodic oxidation treatment is carried out to a base material, to form the first alumina layer on the surface of this base material;
To through first time anodic oxidation treatment described base material carry out first time and to dye process, present a color to make this base material;
The process of diamond engraving is carried out to the described base material through first time dyeing process, to remove part first alumina layer of this substrate surface, thus exposed portion base material, make the surface of base material form pattern;
Second time anodic oxidation treatment is carried out to the described base material through the process of diamond engraving, forms the second alumina layer with the region not being coated with the first alumina layer at this base material;
Carry out second time to the described base material through second time anodic oxidation treatment to dye process, present another color to make this base material.
2. the surface treatment method of Al and Alalloy as claimed in claim 1, it is characterized in that: described first time anodic oxidation treatment be: with described base material for anode, stainless steel is negative electrode, the voltage of 10 ~ 15V is applied between anode and negative electrode, with concentration be the sulfuric acid of 160 ~ 220g/L for electrolytic solution, in temperature be in the sulphuric acid soln of 16 ~ 18 DEG C react 30 ~ 45 minutes.
3. the surface treatment method of Al and Alalloy as claimed in claim 1, it is characterized in that: the step of described first time dyeing process carries out dyeing process for adopting staining fluid to described base material, containing concentration in this staining fluid is the staining agent of 3 ~ 10g/L, and described first time dyeing process carries out 1 ~ 2 minute at the temperature of 30 ~ 50 DEG C.
4. the surface treatment method of Al and Alalloy as claimed in claim 1, it is characterized in that: described diamond engraving is treated to: adopt rotating speed to be rotating speed to be the cutter of 2000 ~ 2500r/min to carry out milling process in the face of this base material, to remove the part first aqua oxidation aluminium lamination of this substrate surface, make this base material have specific pattern, wherein the lower cutter degree of depth of this cutter is 20 ~ 30 μm.
5. the surface treatment method of Al and Alalloy as claimed in claim 1, it is characterized in that: described second time anodic oxidation treatment is: with the described base material through the process of diamond engraving for anode, stainless steel is negative electrode, the voltage of 8 ~ 13V is applied between anode and negative electrode, with concentration be the sulfuric acid of 160 ~ 220g/L for electrolytic solution, in temperature be in the sulphuric acid soln of 16 ~ 18 DEG C react 30 ~ 45 minutes.
6. the surface treatment method of Al and Alalloy as claimed in claim 1, it is characterized in that: the step of described second time dyeing process is adopt staining fluid to carry out dyeing process to the described base material through second time anodic oxidation treatment, containing concentration in this staining fluid is the staining agent of 1 ~ 3g/L, and described second time dyeing process carries out 50 ~ 70 seconds at the temperature of 30 ~ 50 DEG C.
7. aluminum products, comprise base material, it is characterized in that: these aluminum products also comprise and are formed at the first alumina layer on this base material and the second alumina layer, this first alumina layer is divided into some regions, this second alumina layer is also divided into some regions, and each of each region of the second alumina layer and the first alumina layer is interregional every arranging and contacting with each other.
8. aluminum products as claimed in claim 7, it is characterized in that: described aluminum products comprise the first aqua oxidation aluminium lamination be attached on this first alumina layer and the second aqua oxidation aluminium lamination be attached on this second alumina layer further, this the first aqua oxidation aluminium lamination is divided into the some regions corresponding with the first alumina layer, this the second aqua oxidation aluminium lamination is divided into the some regions corresponding with the second alumina layer, and each of each region of this second aqua oxidation aluminium lamination and the first aqua oxidation aluminium lamination is interregional every arranging and contacting with each other.
9. aluminum products as claimed in claim 8, it is characterized in that: described first alumina layer is formed with some micropores, a staining agent is adsorbed in some micropores of this first alumina layer; Described second alumina layer is formed with some micropores, and another staining agent is adsorbed in some micropores of described second alumina layer.
10. aluminum products as claimed in claim 9, is characterized in that: the thickness of described first alumina layer, the first aqua oxidation aluminium lamination, the second alumina layer and the second aqua oxidation aluminium lamination is 10 ~ 15 μm.
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| CN201310283985.9A CN104278309A (en) | 2013-07-08 | 2013-07-08 | Surface treatment method of aluminum and aluminum alloy and aluminum product |
| TW102124817A TWI542737B (en) | 2013-07-08 | 2013-07-10 | Surface treatment method for aluminum and aluminum alloy and aluminum articles thereof |
| JP2014139457A JP5968371B2 (en) | 2013-07-08 | 2014-07-07 | Surface treatment method of aluminum and aluminum alloy and aluminum product |
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| CN105002544A (en) * | 2015-07-31 | 2015-10-28 | 广东欧珀移动通信有限公司 | Method for obtaining high-light logo after aluminum alloy anodic oxidation and aluminum alloy product |
| CN105603485A (en) * | 2015-08-27 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Preparation method of alloy film, mobile terminal shell and mobile terminal |
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| CN107268054A (en) * | 2016-04-06 | 2017-10-20 | 林明达 | Metal surface plating oxide-film generates the method and its structure of space pattern |
| CN105970270A (en) * | 2016-05-13 | 2016-09-28 | 兴科电子(东莞)有限公司 | Process for machining two aluminum anodic oxidation colors on aluminum metal mobile phone shell |
| CN105970270B (en) * | 2016-05-13 | 2018-05-01 | 兴科电子(东莞)有限公司 | A kind of technique that two kinds of alumilite process colors are processed in aluminum metal mobile phone shell |
| CN106191958A (en) * | 2016-08-10 | 2016-12-07 | 中山市奥博精密科技有限公司 | A kind of method of water transcription oxidation |
| CN106894070A (en) * | 2017-01-06 | 2017-06-27 | 东台立讯精密电子技术有限公司 | Secondary oxidation technique after the treatment of mobile phone shell bloom |
| CN107059088A (en) * | 2017-03-29 | 2017-08-18 | 深圳天珑无线科技有限公司 | Housing and preparation method thereof, electronic installation |
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| CN109208055A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | A kind of aluminium alloy and preparation method thereof and handset shell |
| CN107645866B (en) * | 2017-09-29 | 2020-08-04 | Oppo广东移动通信有限公司 | Shell manufacturing method, shell and electronic equipment |
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| US10966333B2 (en) | 2017-09-29 | 2021-03-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Case, method of manufacturing the same and electronic device |
| CN107645866A (en) * | 2017-09-29 | 2018-01-30 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN107708350A (en) * | 2017-09-29 | 2018-02-16 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN107779928A (en) * | 2017-10-30 | 2018-03-09 | 珠海市魅族科技有限公司 | Mobile phone bottom and its processing method and mobile phone |
| CN108060448A (en) * | 2017-11-23 | 2018-05-22 | 广东欧珀移动通信有限公司 | mobile terminal shell and preparation method thereof and mobile terminal |
| CN108977865B (en) * | 2018-07-19 | 2021-01-05 | 中国人民解放军92228部队 | Preparation method of 5XXX aluminum and aluminum alloy surface high-corrosion-resistance single-compact micro-arc oxidation film layer |
| CN108977865A (en) * | 2018-07-19 | 2018-12-11 | 中国人民解放军92228部队 | A kind of preparation method of 5XXX aluminium and the high anti-corrosion single fine and close differential arc oxidation film layer of aluminum alloy surface |
| CN111434808A (en) * | 2019-01-15 | 2020-07-21 | 广东长盈精密技术有限公司 | Surface treatment method of mobile phone rear shell and mobile phone rear shell |
| CN110552041A (en) * | 2019-09-16 | 2019-12-10 | 歌尔股份有限公司 | Surface treatment method for metal material |
| CN110552041B (en) * | 2019-09-16 | 2021-02-19 | 歌尔股份有限公司 | Surface treatment method for metal material |
| CN111472034A (en) * | 2020-04-03 | 2020-07-31 | 深圳市傲雷电商科技股份有限公司 | Double-color oxidation process and equipment for mobile lighting equipment |
| CN113684513A (en) * | 2020-05-19 | 2021-11-23 | 北京小米移动软件有限公司 | Preparation method of aluminum alloy shell, aluminum alloy shell and terminal |
| CN112877743A (en) * | 2021-01-12 | 2021-06-01 | 深圳市富诚达科技有限公司 | Manufacturing method of bicolor anodic oxidation |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI542737B (en) | 2016-07-21 |
| JP2015017327A (en) | 2015-01-29 |
| TW201512460A (en) | 2015-04-01 |
| JP5968371B2 (en) | 2016-08-10 |
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