CN109652840A - Aluminium surface silicon nitride electrophoresis coating method - Google Patents
Aluminium surface silicon nitride electrophoresis coating method Download PDFInfo
- Publication number
- CN109652840A CN109652840A CN201811637062.8A CN201811637062A CN109652840A CN 109652840 A CN109652840 A CN 109652840A CN 201811637062 A CN201811637062 A CN 201811637062A CN 109652840 A CN109652840 A CN 109652840A
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- Prior art keywords
- electrophoresis
- silicon nitride
- aluminium
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Classifications
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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
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/02—Electrophoretic coating characterised by the process with inorganic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
Abstract
The invention discloses a kind of aluminium surface silicon nitride electrophoresis coating methods, aluminium workpiece is subjected to the pretreatment operations such as table degreasing, hot water wash, drying, then the electrophoresis liquid of modulation is arranged in electrophoresis tank, pretreated workpiece connection electrode is linked into electrophoresis tank, it takes out within electrophoresis 40 minutes under 50~60 volt DC electrophoresis voltages, and cooled to room temperature after being dried 25~30 minutes under 100~120 degrees Celsius, the electrophoretic procedures of completion rate workpiece；Nanoscale silicon nitride material is uniformly painted on all appearances of aluminium workpiece using electrophoretic techniques by the present invention, since silicon nitride has extremely strong corrosion resistance wear-resisting and its higher hardness, largely improve the performance of aluminium workpiece surface, improve the corrosion resistance of aluminium workpiece, inoxidizability and wearability.
Description
Technical field:
The present invention relates to a kind of anti-oxidation techniques of anti-corrosion, more particularly to a kind of aluminium surface silicon nitride electrophoresis coating method.
Background technique:
Aluminium is silvery white light metal.There is ductility.Rodlike, sheet, foil-like, powdery, band-like and Filamentous is often made in commodity.In humidity
One layer of oxidation film for preventing metal erosion can be formed in air.Aluminium powder and aluminium foil heat can fiercely burn in air, and issue
The white flame dazzle the eyes.
Metallic aluminium is widely used non-ferrous metal in industry, but the anti-oxidation and anti-corrosion of aluminium gold metal surface is one troublesome
Problem, method commonly used in the prior art are that inert metal is electroplated in aluminium surface, are protected to it, but its is ineffective.
Summary of the invention:
The technical problems to be solved by the present invention are: overcome the deficiencies of the prior art and provide it is a kind of using electrophoretic techniques by nanometer
The silicon nitride material of grade is uniformly painted on all appearances of aluminium workpiece, improves the aluminium surface of the abrasion resistance and hardness of aluminium workpiece
Silicon nitride electrophoresis coating method.
The technical scheme is that a kind of aluminium surface silicon nitride electrophoresis coating method, the steps include: Step 1: treating
Electrophoresis aluminium workpiece pre-process and modulated electrophoretic liquid；Step 2: pretreated workpiece connection electrode is linked into electrophoresis tank,
It takes out within electrophoresis 40 minutes under 50~60 volt DC electrophoresis voltages；Step 3: carrying out spray washing, and Celsius 100~120
Cooled to room temperature after degree lower drying 25~30 minutes.
Further, the electrophoresis liquid is the water of 85~90 parts by weight, the acrylic resin of 2~8 parts by weight, 3~6 weight
The acetic acid of part, the silicon nitride of 2~4 parts by weight are neutralized into water soluble state.
Further, described to electrophoresis aluminium workpiece preprocessing process is degreasing, hot water wash, drying, and the ungrease treatment is logical
It crosses to be put into degreaser and carry out, hot water wash processing, finally will be to electrophoresis aluminium workpiece to be washed with hot water and distilled water flushing
It is put into baking oven and is dried.
Further, pass through before the degreasing operation mixed liquor of concentrated phosphoric acid and the concentrated sulfuric acid that weight proportion is 2:8 into
Row polishing treatment.
Further, pickling is carried out with the mixed liquor of nitric acid, hydrofluoric acid and aqueous solution before hot water wash operation, and with cold
Water rinses.
Further, the degreaser uses the CH306 of the city Dong Wan Chang He Treatment of Metal Surface Materials Co., Ltd production
Type degreasing agent.
The beneficial effects of the present invention are: nanoscale silicon nitride material is uniformly painted on by the present invention using electrophoretic techniques
All appearances of aluminium workpiece are largely improved since silicon nitride has extremely strong corrosion resistance wear-resisting and its higher hardness
The performance of aluminium workpiece surface improves the corrosion resistance of aluminium workpiece, inoxidizability and wearability.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of aluminium surface silicon nitride electrophoretic painting.
Specific embodiment:
Embodiment: referring to Fig. 1.
Aluminium surface silicon nitride electrophoresis coating method the steps include: to be pre-processed and adjusted Step 1: treating electrophoresis aluminium workpiece
Electrophoresis liquid processed；Step 2: pretreated workpiece connection electrode is linked into electrophoresis tank, in 50~60 volt DC electrophoresis voltages
It takes out within lower electrophoresis 40 minutes；Step 3: cooled to room temperature after being dried 25~30 minutes under 100~120 degrees Celsius.
Further, electrophoresis liquid is the water of 85~90 parts by weight, the acrylic resin of 2~8 parts by weight, 3~6 parts by weight
Acetic acid, 2~4 parts by weight silicon nitride be neutralized into water soluble state.
It further, is table degreasing, hot water wash, drying to electrophoresis aluminium workpiece preprocessing process.
To facilitate the understanding of the present invention, below with reference to embodiment to further illustrate the technical scheme of the present invention.
Embodiment one: aluminium workpiece is subjected to the pretreatment operations such as table degreasing, hot water wash, drying, then the electrophoresis of modulation
Liquid is arranged in electrophoresis tank, pretreated workpiece connection electrode is linked into electrophoresis tank, under 50 volt DC electrophoresis voltages
It takes out within electrophoresis 40 minutes, and cooled to room temperature after dry 25 minutes under 100 degrees Celsius, the electrophoresis of completion rate workpiece is grasped
Make.
The wherein process for preparation of electrophoresis liquid are as follows: the water of 85 parts by weight, the acrylic resin of 2 parts by weight, 3 parts by weight vinegar
Sour, 2 parts by weight silicon nitrides are neutralized into water soluble state.
Embodiment two: aluminium workpiece is subjected to the pretreatment operations such as table degreasing, hot water wash, drying, then the electrophoresis of modulation
Liquid is arranged in electrophoresis tank, pretreated workpiece connection electrode is linked into electrophoresis tank, under 60 volt DC electrophoresis voltages
It takes out within electrophoresis 40 minutes, and cooled to room temperature after drying 30 minutes at one hundred and twenty degrees centigrade, the electrophoresis behaviour of completion rate workpiece
Make.
The wherein process for preparation of electrophoresis liquid are as follows: the water of 90 parts by weight, the acrylic resin of 8 parts by weight, 6 parts by weight vinegar
Sour, 4 parts by weight silicon nitrides are neutralized into water soluble state.
Embodiment three: aluminium workpiece is subjected to the pretreatment operations such as table degreasing, hot water wash, drying, then the electrophoresis of modulation
Liquid is arranged in electrophoresis tank, pretreated workpiece connection electrode is linked into electrophoresis tank, under 55 volt DC electrophoresis voltages
It takes out within electrophoresis 40 minutes, and cooled to room temperature after dry 27 minutes under 110 degrees Celsius, the electrophoresis of completion rate workpiece is grasped
Make.
The wherein process for preparation of electrophoresis liquid are as follows: the water of 89 parts by weight, the acrylic resin of 6 parts by weight, 5 parts by weight vinegar
Sour, 3 parts by weight silicon nitrides are neutralized into water soluble state.
Ungrease treatment in above embodiments is carried out by being put into degreaser, and hot water wash processing is to be washed and steamed with hot water
Distilled water is rinsed, and will be finally put into baking oven and is dried to electrophoresis aluminium workpiece.
The mixed liquor for passing through concentrated phosphoric acid and the concentrated sulfuric acid that weight proportion is 2:8 before degreasing operation is processed by shot blasting.
Pickling is carried out with the mixed liquor of nitric acid, hydrofluoric acid and aqueous solution before hot water wash operation, and is rinsed with cold water.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of aluminium surface silicon nitride electrophoresis coating method the steps include: to be pre-processed simultaneously Step 1: treating electrophoresis aluminium workpiece
Modulated electrophoretic liquid；Step 2: pretreated workpiece connection electrode is linked into electrophoresis tank, in 50~60 volt DC electrophoresis electricity
It takes out within pressure electrophoresis 40 minutes；Step 3: carry out spray washing, and after dry 25~30 minutes under 100~120 degrees Celsius oneself
So it is cooled to room temperature.
2. aluminium surface silicon nitride electrophoresis coating method according to claim 1, it is characterized in that: the electrophoresis liquid is 85~90
The water of parts by weight, the acrylic resin of 2~8 parts by weight, the acetic acid of 3~6 parts by weight, 2~4 parts by weight silicon nitride be neutralized into water
Dissolubility state.
3. aluminium surface silicon nitride electrophoresis coating method according to claim 1, it is characterized in that: described pre- to electrophoresis aluminium workpiece
Treatment process is degreasing, hot water wash, drying, and the ungrease treatment is carried out by being put into degreaser, and the hot water wash processing is
It is washed with hot water and distilled water flushing, will finally be put into baking oven and be dried to electrophoresis aluminium workpiece.
4. aluminium surface silicon nitride electrophoresis coating method according to claim 3, it is characterized in that: logical before the degreasing operation
The mixed liquor for crossing concentrated phosphoric acid and the concentrated sulfuric acid that weight proportion is 2:8 is processed by shot blasting.
5. aluminium surface silicon nitride electrophoresis coating method according to claim 3, it is characterized in that: being used before hot water wash operation
The mixed liquor of nitric acid, hydrofluoric acid and aqueous solution carries out pickling, and is rinsed with cold water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637062.8A CN109652840A (en) | 2018-12-29 | 2018-12-29 | Aluminium surface silicon nitride electrophoresis coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637062.8A CN109652840A (en) | 2018-12-29 | 2018-12-29 | Aluminium surface silicon nitride electrophoresis coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109652840A true CN109652840A (en) | 2019-04-19 |
Family
ID=66117871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637062.8A Pending CN109652840A (en) | 2018-12-29 | 2018-12-29 | Aluminium surface silicon nitride electrophoresis coating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046814A (en) * | 2021-03-10 | 2021-06-29 | 江苏特丽亮镀膜科技有限公司 | Electrophoresis working platform and method |
| CN114438570A (en) * | 2022-02-22 | 2022-05-06 | 江门市亚伯拉罕金属有限公司 | Automobile part surface electrophoresis method and device |
Citations (5)
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|---|---|---|---|---|
| JPS5831555A (en) * | 1981-08-18 | 1983-02-24 | Toshiba Corp | Manufacture of semiconductor device |
| JPH06280025A (en) * | 1992-09-08 | 1994-10-04 | Deitsupusoole Kk | Method and device for formation of ceramic film |
| CN201358547Y (en) * | 2009-01-06 | 2009-12-09 | *** | Aluminum profile for shower room |
| CN105931932A (en) * | 2016-04-26 | 2016-09-07 | 北京科技大学 | Preparation method of aluminum nitride insulation layer cathode hot wire |
| CN106399762A (en) * | 2016-11-28 | 2017-02-15 | 安徽省煜灿新型材料科技有限公司 | High-strength corrosion-resistant aluminum alloy profile and preparation method thereof |
-
2018
- 2018-12-29 CN CN201811637062.8A patent/CN109652840A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831555A (en) * | 1981-08-18 | 1983-02-24 | Toshiba Corp | Manufacture of semiconductor device |
| JPH06280025A (en) * | 1992-09-08 | 1994-10-04 | Deitsupusoole Kk | Method and device for formation of ceramic film |
| CN201358547Y (en) * | 2009-01-06 | 2009-12-09 | *** | Aluminum profile for shower room |
| CN105931932A (en) * | 2016-04-26 | 2016-09-07 | 北京科技大学 | Preparation method of aluminum nitride insulation layer cathode hot wire |
| CN106399762A (en) * | 2016-11-28 | 2017-02-15 | 安徽省煜灿新型材料科技有限公司 | High-strength corrosion-resistant aluminum alloy profile and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 薛剑峰等: "电泳沉积制备氮化铝陶瓷的研究", 《无机材料学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046814A (en) * | 2021-03-10 | 2021-06-29 | 江苏特丽亮镀膜科技有限公司 | Electrophoresis working platform and method |
| CN114438570A (en) * | 2022-02-22 | 2022-05-06 | 江门市亚伯拉罕金属有限公司 | Automobile part surface electrophoresis method and device |
| CN114438570B (en) * | 2022-02-22 | 2024-01-23 | 江门市亚伯拉罕金属有限公司 | Surface electrophoresis method and device for automobile parts |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 450041 Xuchang Road and Emei Road, Shangjie District, Zhengzhou City, Henan Province, 100 meters west to the South Applicant after: Henan Norland New Material Technology Co., Ltd. Address before: 450041 Xuchang Road and Emei Road, Shangjie District, Zhengzhou City, Henan Province, 100 meters west to the South Applicant before: Department of Henan New Material Technology Co. Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
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| RJ01 | Rejection of invention patent application after publication |