CN105780083A - Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy - Google Patents
Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy Download PDFInfo
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- CN105780083A CN105780083A CN201610338610.1A CN201610338610A CN105780083A CN 105780083 A CN105780083 A CN 105780083A CN 201610338610 A CN201610338610 A CN 201610338610A CN 105780083 A CN105780083 A CN 105780083A
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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
- C25D11/06—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
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Abstract
The invention relates to a self-luminous anodic oxidation process for aluminum or an aluminum alloy. A porous type aluminum oxide film layer is formed on the surface of an aluminum or aluminum alloy workpiece through the sulfuric acid direct-current anodic oxidation process, gaps of the porous type aluminum oxide film layer are filled with light-emitting materials in a physical filling manner, then the porous type aluminum oxide film layer is colored, and hole sealing is finally conducted, so reaction with other substances in air is isolated and the function and appearance effect that the aluminum or the aluminum alloy can emit light are achieved. The self-luminous anodic oxidation process is suitable for processes of all aluminum or aluminum alloy materials, capable of meeting requirements for appearance effects of various terminal products, controllable in color and suitable for batched production.
Description
Technical field
The application relates to battery technology field, is specifically related to a kind of aluminum or aluminum alloy self-luminous anode oxidation process.
Background technology
Anodic oxidation is aluminum and the most frequently used process of surface treatment of aluminium alloy, but the anodic oxidation commonly used at present all cannot make aluminum or aluminum alloy realize luminous function and appearance.
The prior art method that disclosed a kind of aluminum or aluminum alloy surface micro-arc oxidation technology prepares long-persistence luminous ceramic membrane, the method mainly adopts the micro-arc oxidation process being different from common sulphuric acid anodizing, allow aluminum or aluminum alloy surface production strontium aluminate long-afterglow luminescent materials, and then reach the purpose that aluminum or aluminum alloy is luminous.But, the technique adopting differential arc oxidation creates strontium aluminate luminescence only with the chemical reaction on aluminum or aluminum alloy surface after high pulse voltage, it can not be applicable to the batch production of aluminum or aluminum alloy, and the appearance color of differential arc oxidation is uncontrollable, appearance is generally gloomy, dirty many, it is impossible to reach the requirement to appearance of all kinds of end product.
In consideration of it, special, the application is proposed.
Summary of the invention
The defect aiming to overcome that prior art of the application, a kind of aluminum or aluminum alloy self-luminous anode oxidation process of proposition, and can be suitably used for the technique of all aluminum or aluminum alloy materials, the requirement of all kinds of end product appearance can be reached, Color tunable control, is suitable for batch production.
A kind of aluminum or aluminum alloy self-luminous anode oxidation process that the application relates to, anodizing process with sulfuric acid as major salt is adopted to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece, and then adopt the mode that physics is filled to fill luminescent material in the space of described porous alumina rete, afterwards porous alumina rete is carried out painted, last sealing pores.
Preferably, described luminescent material is the mixture containing energy-saving luminous material.
Preferably, described energy-saving luminous material is selected from Sr4Al14O25、(Sr4Al14O25:Eu2+、Dy3+) or (SrAl2O4:Eu2+、Dy3+) at least one.
Preferably, described luminescent material be energy-saving luminous material be dispersed in resin formed mixture；Described resin is selected from acrylic resin；The mass ratio of described energy-saving luminous material and resin is preferably 7-9:1-3.
Preferably, any one in following two method of described physics fill method:
Method one: adopt silk screen printing, make described luminescent material be immersed in the space of described porous alumina rete by silk screen grid；Preferably employ the silk screen of 400～500 orders；
Method two: under vacuum conditions, the luminescent material that evaporation is described so that it is deposition is in the space of described porous alumina rete.
Preferably, being colored as in the space of the porous alumina rete making to have been filled with luminescent material physical absorption azo-compound toner described in carries out painted.
Preferably, described sealing of hole process is the space and the surface that make hole sealing agent be immersed to the porous alumina rete having been filled with luminescent material and painted toner, carries out sealing treatment；Described hole sealing agent is preferably without nickel high temperature hole sealing agent.
Preferably, described aluminum or aluminum alloy workpiece, before carrying out sulphuric acid DC anodizing PROCESS FOR TREATMENT, is also sequentially carried out machine glazed finish and sandblasting pretreatment.
Preferably, described aluminum or aluminum alloy workpiece in also carrying out before sulphuric acid DC anodizing PROCESS FOR TREATMENT experience acid defat, alkali cleaning, ash disposal successively and, the anodic oxidation pretreatment process of ultrasonic washing and chemical polishing.
The application further relates to a kind of aluminum or aluminum alloy, and its cross section structure is followed successively by the confining bed of aluminum or aluminum alloy workpiece substrate, porous alumina rete and hole sealing agent from the bottom to top；Luminous material layer and painted toner material layer it is filled with from the bottom to top in the space of described porous alumina rete.
The technical scheme that the application provides can reach following beneficial effect:
Technical scheme adopts anodizing process with sulfuric acid as major salt to form porous alumina rete on aluminum or aluminum alloy surface, and then adopt the mode that physics is filled to fill luminescent material in the space of described porous alumina rete, physical absorption is painted afterwards, then sealing pores and reach function and the appearance that aluminum or aluminum alloy can be luminous.The application is applicable to the technique of all aluminum or aluminum alloy materials, can reach the requirement of all kinds of end product appearance, Color tunable control, be suitable for batch production.
Accompanying drawing explanation
The self-luminous anode oxidation process flow chart of Fig. 1 the embodiment of the present application 1 aluminum or aluminum alloy workpiece；
The self-luminous anode oxidation process flow chart of Fig. 2 the embodiment of the present application 2 aluminum or aluminum alloy workpiece；
The self-luminous anode oxidation process flow chart of Fig. 3 the embodiment of the present application 3 aluminum or aluminum alloy workpiece；
The self-luminous anode oxidation process flow chart of Fig. 4 the embodiment of the present application 4 aluminum or aluminum alloy workpiece.
Detailed description of the invention
For making the purpose of the application, technical scheme and advantage clearly, below in conjunction with the embodiment of the present application and accompanying drawing, the technical scheme of the application is clearly and completely described, it is clear that, described embodiment is some embodiments of the present application, rather than whole embodiments.The technical scheme provided based on the application and given embodiment, the every other embodiment that those skilled in the art obtain under not making creative work premise, broadly fall into the scope of the application protection.
A kind of aluminum or aluminum alloy self-luminous anode oxidation process that the application relates to, sulphuric acid DC anodizing technique is adopted to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece, and then adopt the mode that physics is filled to fill luminescent material in the space of described porous alumina rete, afterwards porous alumina rete is carried out painted, last sealing pores is with isolation and the reaction of other materials in air, and reaching aluminum or aluminum alloy can luminous function and appearance.The application is applicable to the technique of all aluminum or aluminum alloy materials, can reach the requirement of all kinds of end product appearance, Color tunable control, be suitable for batch production.
As a kind of improvement of the application, described aluminum or aluminum alloy workpiece, before carrying out sulphuric acid DC anodizing PROCESS FOR TREATMENT, also carries out machine glazed finish and sandblasting pretreatment.
Aluminum or aluminum alloy is polished pretreatment by the application, effect be remove the NC cutting tool processing knife mark of remained on surface, burr, concavo-convex, make aluminum or aluminum alloy surface of the work smooth；
The polishing pretreatment of the application is to utilize mechanical rotation to make soft cloth wheel or bob friction aluminum or aluminum alloy surface of the work after antiscuffing paste is applied in soft cloth wheel or bob, and first rough polishing finishing polish again, polishing can select semi-automatic or Full-automatic polishing machine as required.
The sandblasting pretreatment of the application, primarily serves the burr removing aluminum or aluminum alloy surface and other defect dirt is dirty, improve the effects such as aluminum or aluminum alloy mechanical performance；
The sandblasting pretreatment process of the application is that sand grains is sprayed onto the surface of aluminum or aluminum alloy with the compression air purified, thus removing surface defect, presents the unglazed sand face of uniformity；More preferably dry sand grain.
It is also preferred that the left sand grains used by the application sandblasting selects corundum, alumina particle, zirconia particles, bead etc..
It is also preferred that the left the compressed-air actuated air pressure of the application blasting treatment is 2.5～3.0KG (kilogram).
As a kind of improvement of the application, the application aluminum or aluminum alloy workpiece before carrying out sulphuric acid DC anodizing PROCESS FOR TREATMENT also successively in experience acid defat, alkali cleaning, ash disposal and, the anodic oxidation pretreatment process of ultrasonic washing and chemical polishing.
The purpose of the application acidity defat is evident from the pollutant such as oils and fats and the dust of aluminum or aluminum alloy surface of the work, provides high-quality anode oxide film for subsequent process steps；
The acid skimming processes of the application be by sandblasting after aluminum or aluminum alloy be placed in acid solution soak carry out defat.
It is also preferred that the left the mixed solution that acid solution is sulphuric acid and phosphoric acid that the application acidity skimming processes uses.
It is also preferred that the left in the mixed solution of the application sulphuric acid and phosphoric acid, phosphorus acid content is 30～40g/L, sulfuric acid content is 7～10g/L, and acid degreasing time is 3～5 minutes.
The purpose of the application alkali cleaning is remove surface further dirty, thoroughly removes the natural oxide film on aluminum or aluminum alloy surface, to manifest pure metallic matrix, for anodic oxidation homogeneous conductive subsequently, generates uniform anode oxide film and lays a good foundation surface.
As a kind of improvement of the application, the application alkaline cleaning procedure is to put into aluminum or aluminum alloy workpiece in the alkaline solution that sodium hydroxide is main constituent to carry out etch reaction.
As a kind of improvement of the application, the application alkaline cleaning procedure is to put into aluminum or aluminum alloy workpiece to carry out etch reaction in sodium hydroxide solution.
It is also preferred that the left sodium hydrate content is 40～55g/L in the alkaline solution of the application alkali cleaning use, the etch reaction time is 2～5 minutes, and etch reaction temperature is 40～50 DEG C.
What the application ash disposal neutralized is intended to metallic compound and the alkali cleaning products thereof such as the copper insoluble in alkaline solution of Ex-all alkali cleaning rear surface, ferrum, silicon, to prevent its pollution to follow-up anode oxidation groove liquid；
The application ash disposal N-process is to adopt certain density salpeter solution with tank liquor, aluminum or aluminum alloy to be carried out immersion treatment as in ash disposal.
As a kind of improvement of the application, the salpeter solution that the application adopts nitric acid weight/mass percentage composition to be 10%～25%, soak 1～3 minute at normal temperatures.
The application ultrasonic washing step purpose is thoroughly to remove the salpeter solution remained in ash disposal with rear aluminum or aluminum alloy surface of the work, and general ultrasonic cleaning at least twice is every all over about 2-3 minute.
The application chemical polishing purpose is to remove the slight mold mark of aluminum or aluminum alloy surface of the work, wipe friction striped, the thermal transformation layer etc. that scratch in striped, machine glazed finish, makes coarse surface tend to smooth and obtains the surface of approximate bright in mirror surface.
As a kind of improvement of the application, the polishing fluid that the application chemical polishing process uses is the three acid chemical polishing solutions that employing is made up of phosphoric acid, sulphuric acid, nitric acid.Being characterized in that phosphoric acid relative amount is relatively low and sulphuric acid relative amount is higher, polish temperature is higher, relatively conventional chemical polishing, can more effective removal surface impurity, obtain purer brighter aluminum alloy surface effect.
It is also preferred that the left in the application three acid chemical polishing solution the concentration of phosphoric acid be 25～30g/L, sulphuric acid concentration be 50～60g/L, nitric acid concentration be 7～10g/L.
Further, the temperature of chemical polishing is 95～115 DEG C, and the time is 20～40 seconds.
The application sulphuric acid anodizing process is that aluminum or aluminum alloy workpiece is placed in sulfuric acid electrolyte as anode, utilizes electrolysis, makes aluminum or aluminum alloy surface form porous alumina rete.
It is also preferred that the left the concentration of sulphuric acid is 150～200g/L in the application sulfuric acid electrolyte.
It is also preferred that the left the anodised DC voltage of the application is 11～13V, electric current density is 0.8～1.0 peace every square millimeter, and anodizing time is 30～40 minutes.
As a kind of improvement of the application, the luminescent material of the application is the mixture containing energy-saving luminous material.
As a kind of improvement of the application, the energy-saving luminous material of the application is selected from Sr4Al14O25、(Sr4Al14O25:Eu2+、Dy3+) or (SrAl2O4:Eu2+、Dy3+) at least one.
As a kind of improvement of the application, the luminescent material of the application is the mixture that energy-saving luminous material is dispersed in resin to be formed, and the mode filled by physics is filled in the space of porous alumina rete.This luminescent material relies primarily on the energy-saving luminous material in resin and sends certain light, it sunlight, light, visible ray, ultraviolet light irradiation under absorb luminous energy, and in dark conditions the energy of absorption is gone out with low frequency VISIBLE LIGHT EMISSION, excited by visible light the luminescence phenomenon caused.
It is also preferred that the left the resin of the application is selected from acrylic resin.
It is also preferred that the left the mass ratio of energy-saving luminous material and resin is 7-9:1-3 in the application luminescent material.
It can be silk screen printing or vacuum covering that the application fills the mode of the physics filling of luminescent material in the space of the porous alumina rete on aluminum or aluminum alloy surface.
It is also preferred that the left the application method for printing screen is employing 400～500 order silk screen printing, application fixed jig (stationary positioned device), make the luminescent material of the application be immersed in the space of porous alumina rete by screen grid.
It is also preferred that the left the application vacuum coating methods is under vacuum environment, adopt the luminescent material of resistance wire high temperature evaporation the application so that it is deposition is in the space of porous alumina rete.Preferably evaporating temperature is 800～1000 DEG C.
A kind of improvement as the application, the application coloring process be the porous alumina rete making to have been filled with luminescent material space in physical absorption azo-compound toner carry out painted, namely in being filled with the space of porous alumina rete of luminescent material, form one layer of painted toner again.
The sealing of hole process of the application is the space and the surface that make hole sealing agent and hydrate thereof be immersed to the aluminium oxide rete having been filled with luminescent material and painted toner, carries out sealing treatment, with isolation and the reaction of other materials in air；
Preferably, the sealing of hole process of the application is particularly as follows: be placed in aluminum or aluminum alloy workpiece in the hole sealing agent solution that temperature is 85～100 DEG C and carry out high temperature hole sealing process, hole sealing agent is immersed to the space in the aluminium oxide rete having been filled with luminescent material and painted toner and surface, carry out sealing treatment, with isolation and the reaction of other materials in air；In theory, hole sealing agent is the space and surface that are immersed in the aluminium oxide rete having been filled with luminescent material and painted toner with the form of hole sealing agent or hole sealing agent hydrate.
It is also preferred that the left the hole sealing agent of the application is without nickel high temperature hole sealing agent, concrete model is AX-503, DX-500 etc..Low temperature pore sealing agent under low, medium temperature condition, middle temperature hole sealing agent hole sealing agent activity not, it is difficult to insert oxidation film layer, be difficult to thorough sealing of hole.
It is also preferred that the left the application uses the concentration of hole sealing agent in hole sealing agent solution to be 7～10g/L, the process time is 30～45 minutes.
To sum up, the application has related to alloy self-luminous anode oxidation process a kind of, this anode oxidation process adopts physics filling mode to insert the synthesizing luminescent material being representative with strontium aluminate in porous alumina rete, and then makes aluminum or aluminum alloy obtain self luminous effect and surface effect.
The each rete cross-sectional structure of the application aluminum or aluminum alloy finished workpart, is followed successively by the confining bed of aluminum or aluminum alloy workpiece substrate, porous alumina rete and hole sealing agent from the bottom to top；Wherein it is filled with luminous material layer and painted toner material layer in the space of porous alumina rete from the bottom to top.In theory, the confining bed of hole sealing agent is hole sealing agent or the confining bed of hole sealing agent hydrate.
As a kind of improvement of the application, porous alumina thicknesses of layers is 8～10 μm；Luminescent material layer thickness is 1～3 μm；The thickness of toner layer is 1～2 μm；The thickness of hole sealing agent and hydrate confining bed thereof is 1～2 μm.Luminous material layer is made to possess certain thickness to guarantee that it can send visible ray.
Below by way of concrete aluminium alloy self-luminous anode oxidation process embodiment, the technical scheme of the application is specifically described, specifically includes following steps:
Embodiment 1: the self-luminous anode oxidation process of aluminum or aluminum alloy workpiece, technical process is as shown in Figure 1；
100: adopt anodizing process with sulfuric acid as major salt to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece substrate；Al alloy parts is as anode, in the sulfuric acid electrolyte that sulfuric acid concentration is 150～200g/L, and logical unidirectional current, voltage is 11～13V, electric current density is 0.8～1.0 peace every square millimeter, and anodizing time is 40 minutes, forms the porous alumina rete of 8-10 μ m-thick on Al alloy parts surface；
101: by SrAl2O4:Eu2+、Dy3+7:3 is dispersed in acrylic resin and forms luminescence changes material in mass ratio, then uses 400～500 order silk screens, is immersed in the space of porous alumina rete by this luminescent material by screen grid by silk screen printing, forms the luminous material layer of 1～3 μ m-thick；
102: according to required color, the Al-alloy parts having been filled with luminescent material is carried out dyeing process, make porous oxidation rete antithesis nitrogen compound toner carry out physical absorption painted, in being filled with the space of porous alumina rete of luminescent material, adsorb the toner layer of a layer 1～2 μm；
103: Al alloy parts is placed in temperature be 85～100 DEG C, concentration be that the AX-503 of 10g/L processes 30 minutes without carrying out high temperature hole sealing in nickel high temperature hole sealing agent solution, hole sealing agent and hydrate thereof is made to be immersed to the aluminium oxide rete void and surface having been filled with luminescent material and dyeing toner, forming a layer thickness at film surface is 1～2 μm of hole sealing agent and hydrate confining bed thereof, carry out sealing treatment, with isolation and the reaction of other materials in air；The final anodised aluminum or aluminum alloy workpiece of self-luminous preparing the present embodiment.
Embodiment 2: the self-luminous anode oxidation process of aluminum or aluminum alloy workpiece, as shown in Figure 2；
200: machine glazed finish and sandblasting pretreatment
Machine glazed finish: first rough polishing finishing polish again, burr and the other defect dirt of removing aluminum or aluminum alloy surface are dirty；
Sandblasting: select sand number be 120#, 150#, 170#, 205# any one all can zirconia particles sandblasting, sandblasting atmospheric pressure is 2.5～3.0KG (kilogram)；
201: adopt anodizing process with sulfuric acid as major salt to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece substrate；Al alloy parts is as anode, in the sulfuric acid electrolyte that sulfuric acid concentration is 150～200g/L, and logical unidirectional current, voltage is 11～13V, electric current density is 0.8～1.0 peace every square millimeter, and anodizing time is 40 minutes, forms the porous alumina rete of 8-10 μ m-thick on Al alloy parts surface；
202: by SrAl2O4:Eu2+、Dy3+7:3 is dispersed in acrylic resin and forms luminescence changes material in mass ratio, then uses 400～500 order silk screens, is immersed in the space of porous alumina rete by this luminescent material by screen grid by silk screen printing, forms the luminous material layer of 1～3 μ m-thick；
203: according to required color, the aluminum or aluminum alloy part having been filled with luminescent material is carried out dyeing process, make porous oxidation rete antithesis nitrogen compound toner carry out physical absorption painted, in being filled with the space of porous alumina rete of luminescent material, adsorb the toner layer of a layer 1～2 μm；
204: aluminum or aluminum alloy workpiece is placed in temperature be 85～100 DEG C, concentration be that the AX-503 of 10g/L processes 30 minutes without carrying out high temperature hole sealing in nickel high temperature hole sealing agent solution, hole sealing agent and hydrate thereof is made to be immersed to the aluminium oxide rete void and surface having been filled with luminescent material and dyeing toner, forming a layer thickness at film surface is 1～2 μm of hole sealing agent and hydrate confining bed thereof, carry out sealing treatment, with isolation and the reaction of other materials in air；The final anodised aluminum or aluminum alloy workpiece of self-luminous preparing the present embodiment.
Embodiment 3: the self-luminous anode oxidation process of aluminum or aluminum alloy workpiece, as shown in Figure 3；
300: make aluminum or aluminum alloy workpiece experience the anodic oxidation pre-treatment of acid defat, alkali cleaning, ash disposal neutralization, ultrasonic washing and chemical polishing successively；
Acid defat: use phosphorus acid content is 30g/L, sulfuric acid content is the phosphoric acid of 7g/L and aluminum or aluminum alloy workpiece is carried out soak degreasing by the mixed aqueous solution of sulphuric acid, soaks 5 minutes；
Alkali cleaning: the sodium hydrate aqueous solution that working concentration is 40～55g/L carries out alkali cleaning etch reaction, etch reaction 4 minutes under 40～50 DEG C of temperature conditions；
Ash disposal neutralizes: aluminium alloy is carried out soak at room temperature as in ash disposal process 2 minutes with tank liquor by the aqueous solution of nitric acid using weight/mass percentage composition to be 20%；
Ultrasonic washing: ultrasonic washing 2 times, every all over 2 minutes；
Chemical polishing: using concentration is 7～10g/L the three acid chemical polishing solutions that concentration is 30～35g/L, nitric acid that concentration is 25～30g/L, sulphuric acid of phosphoric acid, under the temperature conditions of 95 DEG C, chemical polishing processes 20 minutes；
301: using the aluminum or aluminum alloy workpiece after above-mentioned pre-treatment as anode, in the sulfuric acid electrolyte that sulfuric acid concentration is 150～200g/L, logical unidirectional current, voltage is 11～13V, electric current density is 0.8～1.0 peace every square millimeter, anodizing time is 40 minutes, forms the porous alumina rete of 8-10 μ m-thick at aluminum or aluminum alloy surface of the work；
302: by SrAl2O4:Eu2+、Dy3+7:3 is dispersed in acrylic resin and forms luminescence changes material in mass ratio, then uses 400～500 order silk screens, is immersed in the space of porous alumina rete by this luminescent material by screen grid by silk screen printing, forms the luminous material layer of 1～3 μ m-thick；
303: according to required color, the aluminum or aluminum alloy part having been filled with luminescent material is carried out dyeing process, make porous oxidation rete antithesis nitrogen compound toner carry out physical absorption painted, in being filled with the space of porous alumina rete of luminescent material, adsorb the toner layer of a layer 1～2 μm；
304: Al alloy parts is placed in temperature be 85～100 DEG C, concentration be that the AX-503 of 10g/L processes 30 minutes without carrying out high temperature hole sealing in nickel high temperature hole sealing agent solution, hole sealing agent and hydrate thereof is made to be immersed to the aluminium oxide rete void and surface having been filled with luminescent material and dyeing toner, forming a layer thickness at film surface is 1～2 μm of hole sealing agent and hydrate confining bed thereof, carry out sealing treatment, with isolation and the reaction of other materials in air；The final anodised aluminum or aluminum alloy workpiece of self-luminous preparing the present embodiment.
Embodiment 4: the self-luminous anode oxidation process process of aluminum or aluminum alloy workpiece, as shown in Figure 4；
400: machine glazed finish and sandblasting pretreatment
Machine glazed finish: first rough polishing finishing polish again, burr and the other defect dirt of removing aluminum or aluminum alloy surface are dirty；
Sandblasting: select sand number be 120#, 150#, 170#, 205# any one all can zirconia particles sandblasting, sandblasting atmospheric pressure is 2.5～3.0KG (kilogram)；
401: make the aluminum or aluminum alloy workpiece after sandblasting experience the anodic oxidation pre-treatment of acid defat, alkali cleaning, ash disposal neutralization, ultrasonic washing and chemical polishing successively；
Acid defat: use phosphorus acid content is 30g/L, sulfuric acid content is the phosphoric acid of 7g/L and the aluminum or aluminum alloy workpiece after sandblasting is carried out soak degreasing by the mixed aqueous solution of sulphuric acid, soaks 5 minutes；
Alkali cleaning: the sodium hydrate aqueous solution that working concentration is 40～55g/L carries out alkali cleaning etch reaction, etch reaction 4 minutes under 40～50 DEG C of temperature conditions；
Ash disposal neutralizes: aluminium alloy is carried out soak at room temperature as in ash disposal process 2 minutes with tank liquor by the aqueous solution of nitric acid using weight/mass percentage composition to be 20%；
Ultrasonic washing: ultrasonic washing 2 times, every all over 2 minutes；
Chemical polishing: using concentration is 7～10g/L the three acid chemical polishing solutions that concentration is 30～35g/L, nitric acid that concentration is 25～30g/L, sulphuric acid of phosphoric acid, under the temperature conditions of 95 DEG C, chemical polishing processes 20 minutes；
402: adopt anodizing process with sulfuric acid as major salt to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece substrate；Al alloy parts is as anode, in the sulfuric acid electrolyte that sulfuric acid concentration is 150～200g/L, and logical unidirectional current, voltage is 11～13V, electric current density is 0.8～1.0 peace every square millimeter, and anodizing time is 40 minutes, forms the porous alumina rete of 8-10 μ m-thick on Al alloy parts surface；
403: by SrAl2O4:Eu2+、Dy3+7:3 is dispersed in acrylic resin and forms luminescence changes material in mass ratio, then uses 400～500 order silk screens, is immersed in the space of porous alumina rete by this luminescent material by screen grid by silk screen printing, forms the luminous material layer of 1～3 μ m-thick；
404: according to required color, the aluminum or aluminum alloy part having been filled with luminescent material is carried out dyeing process, make porous oxidation rete antithesis nitrogen compound toner carry out physical absorption painted, in being filled with the space of porous alumina rete of luminescent material, adsorb the toner layer of a layer 1～2 μm；
405: aluminum or aluminum alloy workpiece is placed in temperature be 85～100 DEG C, concentration be that the AX-503 of 10g/L processes 30 minutes without carrying out high temperature hole sealing in nickel high temperature hole sealing agent solution, hole sealing agent and hydrate thereof is made to be immersed to the aluminium oxide rete void and surface having been filled with luminescent material and dyeing toner, forming a layer thickness at film surface is 1～2 μm of hole sealing agent and hydrate confining bed thereof, carry out sealing treatment, with isolation and the reaction of other materials in air；The final anodised aluminum or aluminum alloy workpiece of self-luminous preparing the present embodiment.
Although the application is with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art are under the premise conceived without departing from the application; can making some possible variations and amendment, therefore the protection domain of the application should be as the criterion with the scope that the application claim defines.
Claims (10)
1. an aluminum or aluminum alloy self-luminous anode oxidation process, it is characterized in that, anodizing process with sulfuric acid as major salt is adopted to form porous alumina rete on the surface of aluminum or aluminum alloy workpiece, and then adopt the mode that physics is filled to fill luminescent material in the space of described porous alumina rete, afterwards porous alumina rete is carried out painted, last sealing pores.
2. technique according to claim 1, it is characterised in that described luminescent material is the mixture containing energy-saving luminous material.
3. technique according to claim 2, it is characterised in that described energy-saving luminous material is selected from Sr4Al14O25、(Sr4Al14O25:Eu2+,Dy3+) or (SrAl2O4:Eu2+,Dy3+) at least one.
4. technique according to claim 3, it is characterised in that described luminescent material be energy-saving luminous material be dispersed in resin formed mixture；Described resin is selected from acrylic resin；The mass ratio of described energy-saving luminous material and resin is preferably 7-9:1-3.
5. technique according to claim 1, it is characterised in that any one in following two method of described physics fill method:
Method one: adopt silk screen printing, make described luminescent material be immersed in the space of described porous alumina rete by silk screen grid；Preferably employ the silk screen of 400～500 orders；
Method two: under vacuum conditions, the luminescent material that evaporation is described so that it is deposition is in the space of described porous alumina rete.
6. technique according to claim 1, it is characterised in that described in be colored as in the space of the porous alumina rete making to have been filled with luminescent material physical absorption azo-compound toner and carry out painted.
7. technique according to claim 6, it is characterised in that described sealing of hole process is the space and the surface that make hole sealing agent be immersed to the porous alumina rete having been filled with luminescent material and painted toner, carries out sealing treatment；Described hole sealing agent is preferably without nickel high temperature hole sealing agent.
8. technique according to claim 1, it is characterised in that described aluminum or aluminum alloy workpiece, before carrying out sulphuric acid DC anodizing PROCESS FOR TREATMENT, is also sequentially carried out machine glazed finish and sandblasting pretreatment.
9. technique according to claim 1, it is characterized in that, described aluminum or aluminum alloy workpiece in also carrying out before sulphuric acid DC anodizing PROCESS FOR TREATMENT experience acid defat, alkali cleaning, ash disposal successively and, the anodic oxidation pretreatment process of ultrasonic washing and chemical polishing.
10. an aluminum or aluminum alloy, it is characterised in that its cross section structure is followed successively by the confining bed of aluminum or aluminum alloy workpiece substrate, porous alumina rete and hole sealing agent from the bottom to top；Luminous material layer and painted toner material layer it is filled with from the bottom to top in the space of described porous alumina rete.
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| CN106191956A (en) * | 2016-08-29 | 2016-12-07 | 深圳天珑无线科技有限公司 | The surface treatment method of a kind of aluminium alloy and corresponding aluminium alloy |
| CN106835236A (en) * | 2017-01-04 | 2017-06-13 | 广东坚美铝型材厂（集团）有限公司 | A kind of production method for improving section bar corrosion resistance |
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| CN114045543A (en) * | 2021-11-29 | 2022-02-15 | 安镁金属制品（深圳）有限公司 | Pretreatment equipment and process for high-appearance colored anodized aluminum alloy die casting |
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| CN106191957A (en) * | 2016-08-29 | 2016-12-07 | 深圳天珑无线科技有限公司 | The sensitization discoloration aluminium alloy that a kind of aluminium alloy surface treatment method and the method obtain |
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| CN106191957B (en) * | 2016-08-29 | 2019-01-04 | 深圳天珑无线科技有限公司 | The sensitization discoloration aluminium alloy that a kind of aluminium alloy surface treatment method and this method obtain |
| CN106835236A (en) * | 2017-01-04 | 2017-06-13 | 广东坚美铝型材厂（集团）有限公司 | A kind of production method for improving section bar corrosion resistance |
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| CN107604414B (en) * | 2017-08-22 | 2020-03-24 | 珠海市奥美伦精细化工有限公司 | Aluminum and aluminum alloy anodic oxidation high-temperature nickel-free sealing agent |
| CN108677130A (en) * | 2018-04-27 | 2018-10-19 | 东莞市慧淳金属制品有限公司 | A kind of processing method for aluminium alloy face layer |
| CN108677235A (en) * | 2018-06-06 | 2018-10-19 | Oppo（重庆）智能科技有限公司 | Aluminium alloy surface treatment method, Al-alloy parts and casting of electronic device |
| CN111334749A (en) * | 2018-12-19 | 2020-06-26 | 富智康精密电子（廊坊）有限公司 | Surface treatment method for aluminum alloy part and aluminum product |
| CN114045543A (en) * | 2021-11-29 | 2022-02-15 | 安镁金属制品（深圳）有限公司 | Pretreatment equipment and process for high-appearance colored anodized aluminum alloy die casting |
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