CN106868567B - The technique of dark images is made after a kind of anodic oxidation of aluminiun materials - Google Patents
The technique of dark images is made after a kind of anodic oxidation of aluminiun materials Download PDFInfo
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- CN106868567B CN106868567B CN201710055928.3A CN201710055928A CN106868567B CN 106868567 B CN106868567 B CN 106868567B CN 201710055928 A CN201710055928 A CN 201710055928A CN 106868567 B CN106868567 B CN 106868567B
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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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- 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
- C25D11/16—Pretreatment, e.g. desmutting
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Abstract
The invention discloses the techniques that dark images are made after a kind of anodic oxidation of aluminiun materials, including pre-processing mechanical processing steps, upper extension step, neutral defatting step, water-washing step, neutralization procedure, anodization step, water-washing step, staining procedure, water-washing step, sealing of hole step, water-washing step, hot water wash step, baking procedure, radium-shine step, cleaning, pattern spraying process and baking procedure, technique of the invention is easy to implement, production cost is low, aluminium workpiece surface after anodic oxidation of aluminiun materials obtains the significant dark images of color, and the dark images wearability with higher and scratch resistance for being eventually formed in aluminium material surface, it is not easy to fade, display dark images can be protruded in the aluminium material surface Jing Guo anodic oxidation, with extraordinary visual contrast effects.
Description
Technical field
The present invention relates to anodic oxidation of aluminiun materials treatment process technical field, more particularly, to being made after a kind of anodic oxidation of aluminiun materials
The technique for making dark images.
Background technique
For aluminium, since aluminium itself is easily corroded by bronsted lowry acids and bases bronsted lowry etc., to assign its corrosion resistance and abrasion performance etc., usually
Anodized is carried out extensively, and anodized using aluminium as anode and is powered in electrolyte solution, in aluminium
Surface forms anodic oxide coating, i.e. aluminium oxide epithelium.
The anodic oxide coating formed through anodized is covered with porous type epithelium pore and in porous layer for one,
It is dyed after anodized, finally carries out sealing pores again, fine and close oxidation film is formed, after sealing pores
Oxidation film does not have adsorption capacity then.If by spraying process or printing technology directly in the spraying of oxidation film surface or printing figure
Case has the following problems, first, the pattern for being formed in oxidation film is very easy to fade, and second, according to double-colored anode, pattern
Conspicuousness is poor, and color is poor, and the method for aluminium material surface pattern-making be unable to get it is dark have a depth pattern, third,
Pattern scratch resistance is very poor, is easy to fall off.It is therefore desirable to be improved.
Summary of the invention
In view of the deficienciess of the prior art, the object of the present invention is to provide make dark figure after a kind of anodic oxidation of aluminiun materials
The technique of case, simple process can produce the significant dark images of color after an anodic oxidation of aluminiun materials, have compared with
High wearability and scratch resistance, and be not easy to fade.
To achieve the goals above, the technical scheme adopted by the invention is that: made after a kind of anodic oxidation of aluminiun materials dark
The technique of pattern, includes the following steps,
Stock selects the semi-finished product aluminum component through over mechanical processing；
Mechanical processing steps are pre-processed, aluminium workpiece surface is polished by mechanical grinding several times；
Upper extension step, multiple aluminum components are fixed on metal hanging rack, following neutral defatting steps into hot water wash step,
Aluminum component is respectively put into the groove body of corresponding steps and the groove body for entering metal hanging rack sinking in corresponding steps；
Aluminum component is put into the degreasing bath containing neutral degreasant solution, rocks or move back and forth metal hanging by neutral defatting step
Frame 5~8 minutes, carry out neutral degreasing；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely；
Aluminum component is put into containing the neutralization chamber for neutralizing solution by neutralization procedure, is rocked or is moved back and forth 5~8 points of metal hanging rack
Clock is neutralized；
Aluminum component is put into the oxidation trough containing electrolyte by anodization step, and metal hanging rack is powered, aluminum component as anode,
Metal hanging rack is rocked or moved back and forth, anodized is carried out to aluminum component, anodizing time is 20~60 minutes, in aluminum component
Surface form the oxidation film that is made of fine and closely woven micropore, the top of micropore is in opening-wide state；
Water-washing step cleans by clear water at least twice, aluminum component is put into Rinsing Area, metal hanging is rocked or move back and forth
Frame 1~5 minute, aluminum component is cleaned up；
Aluminum component is put into the staining trough containing staining solution, metal hanging rack is rocked or move back and forth, to aluminum component by staining procedure
Dyeing processing is carried out, dyeing time is 5~20 minutes；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely；
Aluminum component is put into the sink containing hole sealing agent 40~50 minutes by sealing of hole step immediately after washing, is rocked or back and forth
Mobile metal hanging rack, tank liquor temperature are 70~100 DEG C；Make the top closed of the micropore of oxidation film, by the coloring in staining procedure
Dyestuff is enclosed in the micropore of oxidation film；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely；
Aluminum component is put into hot water storgae by hot water wash step, and the hot water temperature in hot water storgae is 50~60 DEG C, is rocked or to move back
Dynamic metal hanging rack 2~5 minutes, aluminum component is cleaned up by hot water；
Baking procedure, will complete hot water cleaning aluminum component be put into baking oven toast 10~20 minutes, baking temperature be 110~
120℃；
Each aluminum component is individually fixed in a localization tool by radium-shine step, and localization tool and aluminum component are moved to laser machine work
Platform processes to obtain two dimension or three-dimensional pattern in the pattern area of aluminium workpiece surface by radium-shine processing, and the depth of pattern is 0.02~
2mm；The hole wall that the closed material and/or partial pore at the top of the micropore in pattern area are removed while forming pattern, makes pattern
The oxidation film surface in area forms the miniature hole of several tiny opened upper ends, and the surface of pattern is in frosted shape effect；
Cleaning, aluminium workpiece surface is clean；
Pattern spraying process, using, to pattern area oil spout ink, ink is filled in the surface of oxidation film after masking jig masking
It is formed in tiny miniature hole；
Be close to step, and the extra ink of pattern area edge is wiped after baking；
Baking procedure will complete to spray figuratum aluminum component being put into baking oven and toast 30~50 minutes, and baking temperature is 70~
100 DEG C, solidifies the ink in the miniature hole of oxidation film rapidly and be firmly attached in each miniature hole, and is finally formed
The surface of ink is lower than the top edge in miniature hole；
Finished product.
In further technical solution, the pretreatment mechanical processing steps include following sub-step, and emery cloth removes scar, choosing
Sanding and polishing is carried out to aluminium material surface with 180 mesh~600 mesh emery cloth silk, removes the scar of aluminium material surface；Sisal polishing, is selected
Polishing linen wheel polishes aluminium material surface；Cotton piece buff receives light, and buff is selected to polish aluminium material surface.
In further technical solution, the neutrality degreasant solution by active principle weight percent include nitric acid 8%~
20%, methylimidazole 3~5%, coconut oleoyl amine 1~3% and chromic acid 3~5%, surplus are water.
In further technical solution, the neutralization solution by active principle weight percent include oxalic acid 10~20%,
Sodium acetate 10~15%, isopropanol 3~5% and ethyl acetate 1~3%, surplus are water.
In further technical solution, in the sealing of hole step, by active principle weight percent including difficult to understand wild in tank liquor
DX-500 hole sealing agent 10~20%, coconut oleoyl amine 1~3%, methylimidazole 1~3%, methyl ethyl ketone peroxide 3~5% and taurine
6~8%, surplus is water.
In further technical solution, in the anodization step, it is 10~15% that the electrolyte, which selects concentration,
Sulfuric acid；In anode oxidation process, the control of the temperature of electrolyte is at 12~25 DEG C, 3~4 peaces of anodic current density/decimetre2, slot electricity
12~24 volts of pressure.
In further technical solution, in the radium-shine step step, mark speed control is in 100~2000mm/s, function
Rate control is released the control in 75%~90%, Q in 1~25US, and Q frequency control is in 5~30KHz, and the miniature hole is by 1~10
The micropore composition.
The invention has the advantages that compared with the prior art: technique of the invention be it is easy to implement, production cost is low,
Aluminium workpiece surface after anodic oxidation of aluminiun materials obtains the significant dark images of color, and is eventually formed in the dark figure of aluminium material surface
Case wearability with higher and scratch resistance, are not easy to fade, and can protrude display dark images in the aluminium material surface of anodic oxidation,
With extraordinary visual contrast effects.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment one
The technique that dark images are made after a kind of anodic oxidation of aluminiun materials, includes the following steps,
Stock selects the semi-finished product aluminum component through over mechanical processing.
Mechanical processing steps are pre-processed, aluminium workpiece surface is polished by mechanical grinding several times；Mechanical grinding polishes
Emery cloth removes scar, and sisal polishing and cotton piece buff receive light；
Emery cloth removes scar, and 180 mesh~600 mesh emery cloth silk is selected to carry out sanding and polishing to aluminium material surface, removes aluminium table
The scar in face；
Sisal polishing, selects polishing linen wheel to polish aluminium material surface；
Cotton piece buff receives light, and buff is selected to polish aluminium material surface.
Upper extension step, multiple aluminum components are fixed on metal hanging rack, following neutral defatting steps into hot water wash step,
Aluminum component is respectively put into the groove body of corresponding steps and the groove body for entering metal hanging rack sinking in corresponding steps.
Aluminum component is put into the degreasing bath containing neutral degreasant solution, rocks or move back and forth metal hanging by neutral defatting step
Frame 5~8 minutes, carry out neutral degreasing.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into containing the neutralization chamber for neutralizing solution by neutralization procedure, is rocked or is moved back and forth 5~8 points of metal hanging rack
Clock is neutralized.
Aluminum component is put into the oxidation trough containing electrolyte by anodization step, and metal hanging rack is powered, aluminum component as anode,
Metal hanging rack is rocked or moved back and forth, anodized is carried out to aluminum component, anodizing time is 20~60 minutes；Anodic oxygen
During change, the control of the temperature of electrolyte is at 12~25 DEG C, 3~4 peaces of anodic current density/decimetre2, 12~24 volts of tank voltage.
In anode oxidation process, a careful and close oxidation film is formed on the surface of aluminum component, oxidation film is made of fine and closely woven micropore, micro-
The top in hole is in opening-wide state.
Water-washing step cleans by clear water twice, aluminum component is put into Rinsing Area, metal hanging rack 1 is rocked or move back and forth
~5 minutes, aluminum component is cleaned up.
Aluminum component is put into the staining trough containing staining solution, metal hanging rack is rocked or move back and forth, to aluminum component by staining procedure
Dyeing processing is carried out, dyeing time is 5~20 minutes.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into the sink containing hole sealing agent 40~50 minutes by sealing of hole step immediately after washing, is rocked or back and forth
Mobile metal hanging rack, tank liquor temperature are 70~100 DEG C；Include open country difficult to understand DX-500 sealing of hole by active principle weight percent in tank liquor
Agent 10~20%, coconut oleoyl amine 1~3%, methylimidazole 1~3%, methyl ethyl ketone peroxide 3~5% and taurine 6~8%, it is remaining
Amount is water.Sealing of hole step is to form closed material at the top of micropore, makes the top closed of the micropore of the oxidation film of aluminium workpiece surface,
The surface of oxidation film is smoothened, the illuminating colour in staining procedure is enclosed in the micropore of oxidation film, firm coloration.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into hot water storgae by hot water wash step, and the hot water temperature in hot water storgae is 50~60 DEG C, is rocked or to move back
Dynamic metal hanging rack 2~5 minutes, aluminum component is cleaned up by hot water.
Baking procedure, will complete hot water cleaning aluminum component be put into baking oven toast 10~20 minutes, baking temperature be 110~
120℃。
Each aluminum component is individually fixed in a localization tool by radium-shine step, and localization tool and aluminum component are moved to laser machine work
Platform processes to obtain two dimension or three-dimensional pattern in the pattern area of aluminium workpiece surface by radium-shine processing, and the depth of pattern is 0.02~
2mm, wherein mark speed control is released the control in 75%~90%, Q in 1~25US in 100~2000mm/s, power control,
Q frequency control is in 5~30KHz.By radium-shine processing after pattern area molds corresponding pattern, destroyed while forming pattern
The surface of oxidation film removes closed material and part hole wall at the top of the micropore in pattern area while forming pattern, makes pattern
The oxidation film surface in area forms the miniature hole of several tiny opened upper ends, a miniature hole by oxidation film a micropore
Composition, a miniature hole can also be made of 2~10 micropores of oxidation film, each miniature hole in pattern area in not of uniform size and
Deep mixed distribution, the surface of pattern are in frosted shape effect, the top in the miniature hole in pattern area in fine irregularities not
Level state.
Cleaning, aluminium workpiece surface is clean.
Pattern spraying process, using, to pattern area oil spout ink, ink is filled in the surface of oxidation film after masking jig masking
It is formed in tiny miniature hole.
Be close to step, the extra ink of wiping pattern area edge.
Baking procedure will spray figuratum aluminum component and be put into baking oven baking 30~50 minutes, and baking temperature is 70~100
DEG C, solidify the ink in the miniature hole of oxidation film rapidly and be firmly attached in each miniature hole, and finally formed oil
The surface of ink is lower than the top edge in miniature hole.
Finished product.
Technique of the invention constitutes a variety of prior arts, technique of the invention be it is easy to implement, production cost is low, this hair
It is bright that prior art is subjected to combination and application effectively and reasonably, and improve neutral defatting step, neutralization procedure, sealing of hole step,
Process conditions in baking procedure and radium-shine step, the aluminium workpiece surface after anodic oxidation of aluminiun materials obtain the significant dark figure of color
Case, and display dark images can be protruded well, there are extraordinary visual contrast effects, and be eventually formed in aluminium table
The dark images in face wearability with higher and scratch resistance, dark images are wear-resisting and scratch resistance, and are not easy to fade.
Embodiment two
The technique of dark images is made after a kind of anodic oxidation of aluminiun materials, comprising the following steps:
Stock selects the semi-finished product aluminum component through over mechanical processing.
Mechanical processing steps are pre-processed, aluminium workpiece surface is polished by mechanical grinding several times；Mechanical grinding polishes
Emery cloth removes scar, and sisal polishing and cotton piece buff receive light；
Emery cloth removes scar, and 180 mesh~600 mesh emery cloth silk is selected to carry out sanding and polishing to aluminium material surface, removes aluminium table
The scar in face；
Sisal polishing, selects polishing linen wheel to polish aluminium material surface；
Cotton piece buff receives light, and buff is selected to polish aluminium material surface.
Upper extension step, multiple aluminum components are fixed on metal hanging rack, following neutral defatting steps into hot water wash step,
Aluminum component is respectively put into the groove body of corresponding steps and the groove body for entering metal hanging rack sinking in corresponding steps.
Aluminum component is put into the degreasing bath containing neutral degreasant solution, rocks or move back and forth metal hanging by neutral defatting step
Frame 5~8 minutes, carry out neutral degreasing；Wherein, neutral degreasant solution by active principle weight percent include nitric acid 8%~
20%, methylimidazole 3~5%, coconut oleoyl amine 1~3% and chromic acid 3~5%, surplus are water.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into containing the neutralization chamber for neutralizing solution by neutralization procedure, is rocked or is moved back and forth 5~8 points of metal hanging rack
Clock is neutralized；Wherein, neutralize solution by active principle weight percent include oxalic acid 10~20%, sodium acetate 10~
15%, isopropanol 3~5% and ethyl acetate 1~3%, surplus are water.
Aluminum component is put into the oxidation trough containing electrolyte by anodization step, and metal hanging rack is powered, aluminum component as anode,
Metal hanging rack is rocked or moved back and forth, anodized is carried out to aluminum component, anodizing time is 20~60 minutes；Wherein,
It is 10~15% sulfuric acid that electrolyte, which selects concentration, and in anode oxidation process, the temperature control of electrolyte is at 12~25 DEG C, anode
3~4 peaces of current density/decimetre2, 12~24 volts of tank voltage, anodizing time is 20~30 minutes.In anode oxidation process,
A careful and close oxidation film is formed on the surface of aluminum component, oxidation film is made of fine and closely woven micropore, and the top of micropore is in unlimited
State.
Water-washing step cleans by clear water twice, aluminum component is put into Rinsing Area, metal hanging rack 1 is rocked or move back and forth
~5 minutes, aluminum component is cleaned up.
Aluminum component is put into the staining trough containing staining solution, metal hanging rack is rocked or move back and forth, to aluminum component by staining procedure
Dyeing processing is carried out, dyeing time is 5~20 minutes.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into the sink containing hole sealing agent 40~50 minutes by sealing of hole step immediately after washing, is rocked or back and forth
Mobile metal hanging rack, tank liquor temperature are 70~100 DEG C；Include open country difficult to understand DX-500 sealing of hole by active principle weight percent in tank liquor
Agent 10~20%, coconut oleoyl amine 1~3%, methylimidazole 1~3%, methyl ethyl ketone peroxide 3~5% and taurine 6~8%, it is remaining
Amount is water.Sealing of hole step is to form closed material at the top of micropore, makes the top closed of the micropore of the oxidation film of aluminium workpiece surface,
The surface of oxidation film is smoothened, the illuminating colour in staining procedure is enclosed in the micropore of oxidation film, firm coloration.
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned
Completely.
Aluminum component is put into hot water storgae by hot water wash step, and the hot water temperature in hot water storgae is 50~60 DEG C, is rocked or to move back
Dynamic metal hanging rack 2~5 minutes, aluminum component is cleaned up by hot water.
Baking procedure, will complete hot water cleaning aluminum component be put into baking oven toast 10~20 minutes, baking temperature be 110~
120℃。
Each aluminum component is individually fixed in a localization tool by radium-shine step, and localization tool and aluminum component are moved to laser machine work
Platform is processed to obtain the patterns such as two dimension or three-dimensional pattern, such as trade mark, mark in the pattern area of aluminium workpiece surface by radium-shine processing
Or dress pattern, pattern form can be the space pattern of two-dimensional plane pattern or 3 D stereo, the depth of pattern is 0.02~
2mm.Wherein, mark speed control is released the control in 75%~90%, Q in 1~25US in 100~2000mm/s, power control,
Q frequency control is in 5~30KHz.By radium-shine processing after pattern area molds corresponding pattern, destroyed while forming pattern
The surface of oxidation film removes closed material and part hole wall at the top of the micropore in pattern area while forming pattern, makes pattern
The oxidation film surface in area forms the miniature hole of several tiny opened upper ends, a miniature hole by oxidation film a micropore
Composition, a miniature hole can also be made of 2~10 micropores of oxidation film, each miniature hole in pattern area in not of uniform size and
Deep mixed distribution, the surface of pattern are in frosted shape effect, the top in the miniature hole in pattern area in fine irregularities not
Level state.
Cleaning, aluminium workpiece surface is clean.
Pattern spraying process, using, to pattern area oil spout ink, ink is filled in the surface of oxidation film after masking jig masking
It is formed in tiny miniature hole.
Be close to step, and the extra ink of pattern area edge is wiped after baking.
The complete figuratum aluminum component of spraying is put into baking oven and toasted 40~50 minutes by baking procedure, and baking temperature is 90~100
DEG C, solidify the ink in miniature hole rapidly and be firmly attached in each miniature hole, the surface of finally formed ink is low
In the top edge in miniature hole.
Finished product.
Technique of the invention constitutes a variety of prior arts, technique of the invention be it is easy to implement, production cost is low, this hair
It is bright that prior art is subjected to combination and application effectively and reasonably, and improve neutral defatting step, neutralization procedure, sealing of hole step,
Process conditions in baking procedure and radium-shine step, the aluminium workpiece surface after anodic oxidation of aluminiun materials obtain the significant dark figure of color
Case, and display dark images can be protruded well, there are extraordinary visual contrast effects, and be eventually formed in aluminium table
The dark images in face wearability with higher and scratch resistance, dark images are wear-resisting and scratch resistance, and are not easy to fade.
Pattern on the aluminum component processed to present invention process carries out a variety of tests, and test result is as follows shown in table.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (7)
1. making the technique of dark images after a kind of anodic oxidation of aluminiun materials, it is characterised in that: include the following steps,
Stock selects the semi-finished product aluminum component through over mechanical processing；
Mechanical processing steps are pre-processed, aluminium workpiece surface is polished by mechanical grinding several times；
Upper extension step, multiple aluminum components are fixed on metal hanging rack, and following neutral defatting steps passes through into hot water wash step
Aluminum component is respectively put into the groove body of corresponding steps by groove body that metal hanging rack sinking enters in corresponding steps；
Aluminum component is put into the degreasing bath containing neutral degreasant solution by neutral defatting step, rock or move back and forth metal hanging rack 5~
8 minutes, carry out neutral degreasing；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned dry
Only；
Aluminum component is put into containing the neutralization chamber for neutralizing solution, rocks or move back and forth metal hanging rack 5~8 minutes by neutralization procedure, into
Row neutralisation treatment；
Aluminum component is put into the oxidation trough containing electrolyte by anodization step, and metal hanging rack is powered, and aluminum component is rocked as anode
Or move back and forth metal hanging rack, anodized is carried out to aluminum component, anodizing time is 20~60 minutes, in the table of aluminum component
Face forms an oxidation film being made of fine and closely woven micropore, and the top of micropore is in opening-wide state；
Water-washing step cleans by clear water at least twice, aluminum component is put into Rinsing Area, metal hanging rack 1 is rocked or move back and forth
~5 minutes, aluminum component is cleaned up；
Aluminum component is put into the staining trough containing staining solution, rocks or move back and forth metal hanging rack by staining procedure, is carried out to aluminum component
Dyeing processing, dyeing time are 5~20 minutes；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned dry
Only；
Aluminum component is put into the sink containing hole sealing agent 40~50 minutes immediately after washing, rocks or move back and forth by sealing of hole step
Metal hanging rack, tank liquor temperature are 70~100 DEG C；Make the top closed of the micropore of oxidation film, by the illuminating colour in staining procedure
It is enclosed in the micropore of oxidation film；
Aluminum component is put into Rinsing Area by water-washing step, is rocked or is moved back and forth metal hanging rack 1~5 minute, aluminum component is cleaned dry
Only；
Aluminum component is put into hot water storgae by hot water wash step, and the hot water temperature in hot water storgae is 50~60 DEG C, rocks or move back and forth gold
Belong to hanger 2~5 minutes, is cleaned up aluminum component by hot water；
The aluminum component for completing hot water cleaning is put into baking oven and toasted 10~20 minutes by baking procedure, and baking temperature is 110~120 DEG C；
Radium-shine step, is individually fixed in a localization tool for each aluminum component, and localization tool and aluminum component are moved to radium-shine machine worktable, leads to
It crosses radium-shine processing to process to obtain two dimension or three-dimensional pattern in the pattern area of aluminium workpiece surface, the depth of pattern is 0.02~2mm；?
The hole wall of closed material and/or partial pore while forming pattern at the top of the micropore in removal pattern area, makes the oxygen in pattern area
Change the miniature hole that film surface forms several tiny opened upper ends, the surface of pattern is in frosted shape effect；
Cleaning, aluminium workpiece surface is clean；
Pattern spraying process, using, to pattern area oil spout ink, the surface that ink is filled in oxidation film is formed after masking jig masking
In tiny miniature hole；
Be close to step, and the extra ink of pattern area edge is wiped after baking；
Baking procedure will complete the figuratum aluminum component of spraying and be put into baking oven baking 30~50 minutes, and baking temperature is 70~100
DEG C, solidify the ink in the miniature hole of oxidation film rapidly and be firmly attached in each miniature hole, and finally formed oil
The surface of ink is lower than the top edge in miniature hole；
Finished product.
2. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 1, it is characterised in that: described
Pre-processing mechanical processing steps includes following sub-step,
Emery cloth removes scar, selects 180 mesh~600 mesh emery cloth silk to carry out sanding and polishing to aluminium material surface, removes aluminium material surface
Scar；
Sisal polishing, selects polishing linen wheel to polish aluminium material surface；
Cotton piece buff receives light, and buff is selected to polish aluminium material surface.
3. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 2, it is characterised in that: described
Neutral degreasant solution includes nitric acid 8%~20% by active principle weight percent, methylimidazole 3~5%, and coconut oleoyl amine 1~
3% and chromic acid 3~5%, surplus be water.
4. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 3, it is characterised in that: described
It includes oxalic acid 10~20%, sodium acetate 10~15% that solution, which is neutralized, by active principle weight percent, isopropanol 3~5% and second
Acetoacetic ester 1~3%, surplus are water.
5. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 4, it is characterised in that: described
It by active principle weight percent include open country DX-500 hole sealing agent 10~20% difficult to understand in tank liquor in sealing of hole step, coconut oleoyl amine 1~
3%, methylimidazole 1~3%, methyl ethyl ketone peroxide 3~5% and taurine 6~8%, surplus are water.
6. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 4, it is characterised in that: described
In anodization step, it is 10~15% sulfuric acid that the electrolyte, which selects concentration,；In anode oxidation process, the temperature of electrolyte
Control is at 12~25 DEG C, 3~4 peaces of anodic current density/decimetre2, 12~24 volts of tank voltage.
7. making the technique of dark images after a kind of anodic oxidation of aluminiun materials according to claim 4, it is characterised in that: described
In radium-shine step step, mark speed control is released the control in 75%~90%, Q 1 in 100~2000mm/s, power control
In 5~30KHz, the miniature hole is made of 1~10 micropore for~25US, Q frequency control.
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| CN109722696A (en) * | 2019-03-05 | 2019-05-07 | 东莞金稞电子科技有限公司 | A kind of three color gradual change dyeing of aluminum alloy anode |
| CN110949054A (en) * | 2019-12-19 | 2020-04-03 | 联想(北京)有限公司 | Processing method and electronic equipment |
| 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 |
| CN113246648A (en) * | 2021-03-02 | 2021-08-13 | 宝鸡市福立特工贸有限责任公司 | Titanium metal plate painting and manufacturing process thereof |
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