CN107338463A - The Hard anode oxidation method of panel class Product processing part of appliance - Google Patents
The Hard anode oxidation method of panel class Product processing part of appliance Download PDFInfo
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- CN107338463A CN107338463A CN201710562601.5A CN201710562601A CN107338463A CN 107338463 A CN107338463 A CN 107338463A CN 201710562601 A CN201710562601 A CN 201710562601A CN 107338463 A CN107338463 A CN 107338463A
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- workpiece
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- product processing
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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
Abstract
The present invention discloses a kind of Hard anode oxidation method of panel class Product processing part of appliance, and it uses dilute sulfuric acid as anodic oxidation is carried out under oxidation environment, then carries out sealing pores to pellumina by boiling water sealing hole technique, can form protective layer of alumina film.The present invention generates insulating barrier using the anodizing of special process in workpiece surface, both can reach insulation effect by the setting of insulating barrier, can extend its service life again.
Description
Technical field
The present invention discloses a kind of anode oxidation method, particularly a kind of hard anode of panel class Product processing part of appliance
Method for oxidation, belong to extraordinary surface cleaning technical field.
Background technology
With the continuous development of lcd technology, application of the liquid crystal display panel in people live is more and more extensive,
People are also growing day by day to the demand of liquid crystal display panel, and the demand of panel class Product processing equipment is consequently increased.Face
Plate class process equipment belongs to easily loss article, it is necessary to periodically be safeguarded, to keep its property, how to extend its processing and set
Standby service life, its maintenance times is reduced, have become technical problem urgently to be resolved hurrily in industry.
In the part of panel class Product processing equipment, there have to be a kind of needing progress insulation processing, i.e., the portion in process equipment
Insulating barrier is set on part, prevents conduction between product to be processed and process equipment, conventional way is in equipment part
The position insulated is needed to paste the adhesive tape that insulate, to reach insulation purpose, in such a way, the adhesive tape that on the one hand insulate needs craft
Paste, not only waste time and energy, and quality is difficult to ensure that；On the other hand, insulation adhesive tape is easily worn in use, is used
Short life is, it is necessary to often be safeguarded.
The content of the invention
Stickup insulation adhesive tape is used for the part of panel class Product processing equipment of the prior art mentioned above
The shortcomings that mode carries out insulation processing, and service life is short, the present invention provide a kind of hard of panel class Product processing part of appliance
Anode oxidation method, it uses anodic oxidation to generate insulating barrier, both can reach insulation effect, can extend its service life again.
The present invention solves the technical scheme that its technical problem uses：A kind of hard of panel class Product processing part of appliance
Anode oxidation method, the anode oxidation method comprise the steps：
S1, stock：Workpiece to be processed is selected standby；
S2, pre-treatment：Workpiece surface is polished, removes the spot of workpiece surface；
S3, pad pasting：Stick shielding film in the place that need not be aoxidized on workpiece；
S4, alkali cleaning：Use mass concentration that sodium hydrate aqueous solution is heated into 50 for 10 ± 1% sodium hydrate aqueous solutions
± 5 DEG C, workpiece is put into sodium hydrate aqueous solution, carry out immersion 1 minute~2 minutes；
S5, washing：At normal temperatures by pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2 point
Clock；
S6, pickling：Use mass concentration that diluted nitric acid aqueous solution is heated into 50 ± 5 for 10 ± 1% diluted nitric acid aqueous solutions
DEG C, workpiece is put into diluted nitric acid aqueous solution, carries out immersion 1 minute~2 minutes；
S7, washing：At normal temperatures by pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2 point
Clock；
S8, anodic oxidation：Use mass concentration that dilute sulfuric acid aqueous solution is put into oxidation for 8 ± 1% dilute sulfuric acid aqueous solution
In groove, dilute sulfuric acid aqueous solution is cooled to 8 DEG C~12 DEG C, workpiece is put into dilute sulfuric acid aqueous solution, anodic oxygen is carried out to workpiece
Change, using workpiece as anode electrode during oxidation；
S9, washing：At normal temperatures by ultra-pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2
Minute；
S10, sealing of hole：Sealing of hole is carried out to the pellumina of workpiece surface using boiling water sealing hole technique, by work during boiling water sealing hole
Part is put into 100 DEG C of ultra-pure water boiling water, continuous heating 2~3 hours；
S11, washing：By pure water soaking and water washing under the conditions of 50 ± 5 DEG C, workpiece is soaked into pure water, washing time
For 1~2 minute；
S12, rubbing down cleaning：Rubbing down cleaning is carried out to workpiece surface；
S13, ultrasonic cleaning：Pure water is put into ultrasonic cleaning equipment, is immersed in the water workpiece under normal temperature condition
Carry out ultrasonic vibrating cleaning；
S14, drying：Utilize the water stain of drying compressed air drying workpiece surface；
S15, baking：Put the workpiece in baking box, at a temperature of 80 ± 5 DEG C, toast 1~1.2 hour；
S16, packaging：Workpiece is packed in dust free room.
The present invention solves the technical scheme that its technical problem uses and further comprised：
In described step S2, it is polished when workpiece surface is polished using hand-held pneumatic polishing machine, hand-held pneumatic
The rubbing head of polishing machine uses 7447# industry scouring pads, and pure water is sprayed to polishing position in polishing process.
In described step S8, oxidation trough uses refrigerant to be cooled for the refrigeration machine of R22 refrigerants.
In described step S8, using graphite cake as cathode electrode.
In described step S8, during anodic oxidation, the current density being passed through is 1.0A/dm2~2.0A/dm2, oxidization time
For 70~180 minutes.
In described step S8, during anodic oxidation, aluminum oxide film thickness is 40-60 μm.
In described step S12, when rubbing down cleans, carried out using hand-held pneumatic polishing machine, the throwing of hand-held pneumatic polishing machine
Shaven head uses 7447# industry scouring pads, and pure water is sprayed to rubbing down position during rubbing down.
In described step S13, use effective power be 1.2Kw ultrasonic wave carry out ultrasonic oscillation clean 30 minutes with
On.
Drying temperature is 100 ± 5 DEG C in described step S14, and drying time is more than 30 minutes.
The beneficial effects of the invention are as follows：The present invention is generated using the anodizing of special process in workpiece surface to insulate
Layer, both can reach insulation effect by the setting of insulating barrier, can extend its service life again.
Embodiment
The present embodiment is the preferred embodiment for the present invention, and other all its principle and basic structure are identical or near with the present embodiment
As, within the scope of the present invention.
The Hard anode oxidation method of panel class Product processing part of appliance in the present invention mainly comprises the steps：
S1, stock：The workpiece to be processed that client is provided is selected, standby；
S2, pre-treatment：Workpiece surface is polished, to remove the spot of workpiece surface, in the present embodiment, workpiece surface
By being manually polished using hand-held pneumatic polishing machine when being polished, in the present embodiment, first thrown with 240#, 320# sand paper
Light, it is uniform to reach surface, no color differnece, and then the rubbing head of hand-held pneumatic polishing machine uses the 7447# industry hundred of 3M companies production
Clean cloth, polishing process is to reach 0.5 μm of Ra ＜, and in the present embodiment, to polishing position spray pure water, (resistivity is in polishing process
More than 12M Ω .cm pure water), abundant spray, it is ensured that surface foreign, without trace, no marking, to realize nothing in polishing process
Dust produces；
S3, pad pasting (i.e. masking)：Used using the place that need not be manually aoxidized on workpiece and stick acid and alkali-resistance
The place that need not be aoxidized on workpiece is covered as shielding film, prevents it to be oxidized damage, the present embodiment by adhesive tape
In, shielding film uses PU (i.e. Polyurethane abbreviation) film, the entitled polyurethanes of Chinese, abbreviation polyurethane, PU films
As polyurethane film.
S4, alkali cleaning：Use mass concentration that sodium hydrate aqueous solution is heated into 50 for 10 ± 1% sodium hydrate aqueous solutions
± 5 DEG C, workpiece is put into sodium hydrate aqueous solution, immersion 1 minute~2 minutes is carried out, to remove the oxide layer of workpiece surface；
S5, washing：At normal temperatures by pure water soaking and water washing, the workpiece after step S4 processing is soaked into pure water (resistance
Rate is more than 12M Ω .cm pure water) in, washing time is 1~2 minute, and the sodium hydroxide that workpiece surface is removed with cleaning remains
Liquid；
S6, pickling：Use mass concentration that diluted nitric acid aqueous solution is heated into 50 ± 5 for 10 ± 1% diluted nitric acid aqueous solutions
DEG C, workpiece is put into diluted nitric acid aqueous solution, immersion 1 minute~2 minutes is carried out, is produced with removing in the alkaline bath of workpiece surface
Product；
S7, washing：At normal temperatures by pure water soaking and water washing, the workpiece after step S6 processing is soaked into pure water (resistance
Rate is more than 12M Ω cm pure water) in, washing time is 1~2 minute, and the nitric acid Liquid Residue of workpiece surface is removed with cleaning
Body；
S8, anodic oxidation：Use mass concentration that dilute sulfuric acid aqueous solution is put into oxidation for 8 ± 1% dilute sulfuric acid aqueous solution
In groove, oxidation trough uses refrigerant to be cooled for the refrigeration machine of R22 refrigerants, and dilute sulfuric acid aqueous solution is cooled into 8 DEG C~12 DEG C,
Workpiece is put into dilute sulfuric acid aqueous solution, anodic oxidation is carried out to workpiece, using workpiece as anode electrode during oxidation, using graphite
Plate or aluminium sheet (graphite cake effect is more preferable) are used as cathode electrode, during anodic oxidation, are passed through stable oxidation current, current density
For 1.0A/dm2~2.0A/dm2, (in the present embodiment, the current density being passed through is bigger, then when aoxidizing by oxidization time 70-180min
Between it is shorter, available current density is 1.0A/dm2~2.0A/dm2, when current density is 1.0A/dm2When, it can be selected most long
Oxidization time 180 minutes, most thick pellumina can be generated, as current density 2.0A/dm2When, most short oxidation can be selected
The 70 minutes time, when current density is 1.0A/dm2~2.0A/dm2Between when, can oxidation specifically chosen according to actual conditions when
Between), workpiece surface is formed one layer of pellumina, aluminum oxide film thickness is 40-60 μm；
S9, washing：At normal temperatures by ultra-pure water soaking and water washing, the workpiece after step S8 processing is soaked into pure water (electricity
Resistance rate is more than 18M Ω cm pure water) in, washing time is 1~2 minute, and the sulfuric acid that workpiece surface is removed with cleaning remains
Liquid；
S10, sealing of hole：Because surface forms one layer of pellumina after workpiece anodized, pellumina is porous
It is cellular, it is necessary to sealing pores.In the present embodiment, sealing of hole uses boiling water sealing hole technique, i.e., using 100 DEG C of ultra-pure water (resistivity
For pure water more than 18M Ω cm) boiling water carries out sealing of hole, and put the workpiece in 100 DEG C of ultra-pure water boiling water during boiling water sealing hole, continue
The 2-3H times are heated, by the hydration reaction of aluminum oxide, amorphous alumina are transformed into the hydrated alumina of vigorous nurse body, i.e.,
Al2O3H2O (AlOOH), because the molecular volume of the original anode oxide film of aqua oxidation aluminum ratio is big by 30%, volumetric expansion makes
The micropore for obtaining anodic alumina films is able to filling closing, and the resistance tocrocking and corrosion resistance for making anodic alumina films improve therewith；
S11, washing：By pure water soaking and water washing under the conditions of 50 ± 5 DEG C, the workpiece after step S10 processing is soaked into
In pure water (resistivity is more than 12M Ω cm pure water), washing time is 1~2 minute, to cool to workpiece；
S12, rubbing down cleaning：Rubbing down cleaning is carried out to workpiece surface, to reduce workpiece surface roughness, in the present embodiment,
By manually using hand-held pneumatic polishing machine to carry out when workpiece surface carries out rubbing down cleaning, in the present embodiment, hand-held pneumatic polishing
The rubbing head of machine uses the 7447# industry scouring pads of 3M companies production, and polishing process is to reach 0.5 μm of Ra ＜, in the present embodiment,
To polishing position spray pure water (resistivity be more than 12M Ω .cm pure water), fully spray in polishing process, it is ensured that surface without
Foreign matter, without trace, no marking, produced with realizing in polishing process without dust；
S13, ultrasonic cleaning：Pure water is put into ultrasonic cleaning equipment, and (resistivity is the pure of more than 12M Ω cm
Water), workpiece is immersed in the water under normal temperature condition, to Throwing mills less than place carry out ultrasonic vibrating cleaning, in the present embodiment,
Use effective power to carry out ultrasonic oscillation for 1.2Kw ultrasonic wave to clean more than 30 minutes, to remove the remaining of workpiece surface
Particulate matter；
S14, drying：Dried up using CDA (water compressed air of deoiling), drying temperature is 100 ± 5 DEG C, and drying time is
More than 30 minutes, in addition to it can remove remained on surface moisture, it also can remove the moisture that intrinsic silicon penetrates into；
S15, baking：Put the workpiece in baking box, at a temperature of 80 ± 5 DEG C, toast 1~1.2 hour；
S16, packaging：By workpiece in dust free room, packed using double-layer vacuum pumping PE materials.
The present invention generates insulating barrier using the anodizing of special process in workpiece surface, by the setting of insulating barrier both
Insulation effect is can reach, its service life can be extended again.
Claims (9)
1. a kind of Hard anode oxidation method of panel class Product processing part of appliance, it is characterized in that：Described anodic oxidation side
Method comprises the steps：
S1, stock：Workpiece to be processed is selected standby；
S2, pre-treatment：Workpiece surface is polished, removes the spot of workpiece surface；
S3, pad pasting：Stick shielding film in the place that need not be aoxidized on workpiece；
S4, alkali cleaning：Use mass concentration that sodium hydrate aqueous solution is heated into 50 ± 5 for 10 ± 1% sodium hydrate aqueous solutions
DEG C, workpiece is put into sodium hydrate aqueous solution, carries out immersion 1 minute~2 minutes；
S5, washing：At normal temperatures by pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2 minute；
S6, pickling：Mass concentration is used as 10 ± 1% diluted nitric acid aqueous solutions, diluted nitric acid aqueous solution is heated to 50 ± 5 DEG C, will
In workpiece input diluted nitric acid aqueous solution, immersion 1 minute~2 minutes is carried out；
S7, washing：At normal temperatures by pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2 minute；
S8, anodic oxidation：Use mass concentration that dilute sulfuric acid aqueous solution is put into oxidation trough for 8 ± 1% dilute sulfuric acid aqueous solution
In, dilute sulfuric acid aqueous solution is cooled to 8 DEG C~12 DEG C, workpiece is put into dilute sulfuric acid aqueous solution, anodic oxidation is carried out to workpiece,
Using workpiece as anode electrode during oxidation；
S9, washing：At normal temperatures by ultra-pure water soaking and water washing, workpiece is soaked into pure water, washing time is 1~2 minute；
S10, sealing of hole：Sealing of hole is carried out to the pellumina of workpiece surface using boiling water sealing hole technique, put workpiece during boiling water sealing hole
Enter in 100 DEG C of ultra-pure water boiling water, continuous heating 2~3 hours；
S11, washing：By pure water soaking and water washing under the conditions of 50 ± 5 DEG C, workpiece is soaked into pure water, washing time be 1~
2 minutes；
S12, rubbing down cleaning：Rubbing down cleaning is carried out to workpiece surface；
S13, ultrasonic cleaning：Pure water is put into ultrasonic cleaning equipment, workpiece is immersed in the water progress under normal temperature condition
Ultrasonic vibrating cleans；
S14, drying：Utilize the water stain of drying compressed air drying workpiece surface；
S15, baking：Put the workpiece in baking box, at a temperature of 80 ± 5 DEG C, toast 1~1.2 hour；
S16, packaging：Workpiece is packed in dust free room.
2. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S2 stated, it is polished when workpiece surface is polished using hand-held pneumatic polishing machine, the throwing of hand-held pneumatic polishing machine
Shaven head uses 7447# industry scouring pads, and pure water is sprayed to polishing position in polishing process.
3. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S8 stated, oxidation trough uses refrigerant to be cooled for the refrigeration machine of R22 refrigerants.
4. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S8 stated, using graphite cake as cathode electrode.
5. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S8 stated, during anodic oxidation, the current density being passed through is 1.0A/dm2~2.0A/dm2, oxidization time is 70~180 points
Clock.
6. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S8 stated, during anodic oxidation, aluminum oxide film thickness is 40-60 μm.
7. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S12 stated, when rubbing down cleans, carried out using hand-held pneumatic polishing machine, the rubbing head of hand-held pneumatic polishing machine uses
7447# industry scouring pads, pure water is sprayed to rubbing down position during rubbing down.
8. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
In the step S13 stated, use effective power to carry out ultrasonic oscillation for 1.2Kw ultrasonic wave and clean more than 30 minutes.
9. the Hard anode oxidation method of panel class Product processing part of appliance according to claim 1, it is characterized in that：Institute
Drying temperature is 100 ± 5 DEG C in the step S14 stated, and drying time is more than 30 minutes.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103430A (en) * | 2017-11-24 | 2018-06-01 | 四川富乐德科技发展有限公司 | A kind of control method of arc procedure aluminium meltallizing layer surface tip burr |
| CN108642543A (en) * | 2018-05-30 | 2018-10-12 | 江苏和兴汽车科技有限公司 | A kind of preparation process of aluminium alloy high temperature resistant anodic oxide coating |
| CN110607547A (en) * | 2019-10-22 | 2019-12-24 | 山东华建铝业集团有限公司 | Double-sided treatment process for aluminum alloy section |
| CN112899747A (en) * | 2020-12-25 | 2021-06-04 | 江苏信基科技有限公司 | Remote plasma source RPS cavity anodic oxidation method |
| CN113904039A (en) * | 2021-09-30 | 2022-01-07 | 蜂巢能源科技有限公司 | Anodic oxidation liquid, battery shell, and insulation protection method and application thereof |
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| CN103702514A (en) * | 2014-01-07 | 2014-04-02 | 张伯平 | Colored metal-based printed board and manufacturing method thereof |
| CN106868508A (en) * | 2017-02-19 | 2017-06-20 | 安徽晶海纳光电科技有限公司 | A kind of vacuum equipment processing chamber wallboard regeneration treating method |
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Patent Citations (2)
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| CN103702514A (en) * | 2014-01-07 | 2014-04-02 | 张伯平 | Colored metal-based printed board and manufacturing method thereof |
| CN106868508A (en) * | 2017-02-19 | 2017-06-20 | 安徽晶海纳光电科技有限公司 | A kind of vacuum equipment processing chamber wallboard regeneration treating method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103430A (en) * | 2017-11-24 | 2018-06-01 | 四川富乐德科技发展有限公司 | A kind of control method of arc procedure aluminium meltallizing layer surface tip burr |
| CN108642543A (en) * | 2018-05-30 | 2018-10-12 | 江苏和兴汽车科技有限公司 | A kind of preparation process of aluminium alloy high temperature resistant anodic oxide coating |
| CN108642543B (en) * | 2018-05-30 | 2020-06-05 | 江苏和兴汽车科技有限公司 | Preparation process of high-temperature-resistant anodic oxide layer of aluminum alloy |
| CN110607547A (en) * | 2019-10-22 | 2019-12-24 | 山东华建铝业集团有限公司 | Double-sided treatment process for aluminum alloy section |
| CN112899747A (en) * | 2020-12-25 | 2021-06-04 | 江苏信基科技有限公司 | Remote plasma source RPS cavity anodic oxidation method |
| CN112899747B (en) * | 2020-12-25 | 2022-07-26 | 江苏神州半导体科技有限公司 | Remote plasma source RPS cavity anodic oxidation method |
| CN113904039A (en) * | 2021-09-30 | 2022-01-07 | 蜂巢能源科技有限公司 | Anodic oxidation liquid, battery shell, and insulation protection method and application thereof |
| CN113904039B (en) * | 2021-09-30 | 2023-08-08 | 蜂巢能源科技有限公司 | Anodic oxidation liquid, battery shell, and insulation protection method and application thereof |
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Application publication date: 20171110 |