CN108014985A - A kind of aluminum alloy surface treatment process - Google Patents
A kind of aluminum alloy surface treatment process Download PDFInfo
- Publication number
- CN108014985A CN108014985A CN201711199281.8A CN201711199281A CN108014985A CN 108014985 A CN108014985 A CN 108014985A CN 201711199281 A CN201711199281 A CN 201711199281A CN 108014985 A CN108014985 A CN 108014985A
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- China
- Prior art keywords
- aluminium alloy
- aluminum alloy
- processing
- alloy surface
- spray painting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
Abstract
The present invention relates to a kind of aluminum alloy surface treatment process, mainly includes aluminum alloy surface polishing, loud, high-pitched sound gas bleed, surface and oil contaminant processing, the processing of dust attachment, cleaning treatment, spray painting processing and air-dries seven steps of processing；Wherein surface and oil contaminant processing is that aluminium alloy is put into 50 60 DEG C of 5 8min of sodium hydroxide solutions processing；The processing of dust attachment is that the aluminium alloy after degreasing is put into acid solution to handle 4 6min；Spray painting processing is to place the aluminium alloy after drying in spraying box, spray painting processing is carried out to aluminium alloy, paint vehicle used is high temperature resistant, corrosion-resistant paint vehicle；The aluminium alloy of gained of the invention is anti-oxidant, corrosion-resistant, service life length.
Description
Technical field
The present invention relates to a kind of process of surface treatment, belongs to mechanical treatment field, it is more particularly related to a kind of
Aluminum alloy surface treatment process.
Background technology
Aluminium alloy is most widely used one kind non-ferrous metal structural material in industry, in Aeronautics and Astronautics, automobile, machinery
Widely applied in manufacture, ship and chemical industry.The rapid development of industrial economy, to the demand day of Welded structural member
Benefit increases, and the Research on Weldability enabled aluminum alloy to is also goed deep into therewith.Aluminium alloy is to apply most alloys at present.
But the processing of existing aluminum alloy surface is too simple, is easily aoxidized during meeting water, enable aluminum alloy to corrode,
The service life of aluminium alloy is shortened, and influences its using effect, for this reason, we design a kind of aluminum alloy surface treatment process,
Improve the performance of aluminium alloy.
The content of the invention
Based on above technical problem, the present invention provides a kind of aluminum alloy surface treatment process, so as to solve conventional aluminium
Oxidizable, perishable, service life the is short technical problem of alloy.
To solve above technical problem, the technical solution adopted by the present invention is as follows：
A kind of aluminum alloy surface treatment process, comprises the following steps,
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash occurred during aluminium alloy is manufactured
And protrusion polishes off, ensure that aluminum alloy surface flatness is consistent, avoid the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet
Rinse, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 50-60 DEG C of sodium hydroxide solution and handles
5-8min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 4-6min, dissolves aluminium
Alloy dust attachment；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rushed in the case where flowing clear water
Wash, dried after rinsing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing, paint vehicle used are carried out to aluminium alloy
For high temperature resistant, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
On the basis of above technical scheme：The sodium hydroxide solution is sodium hydroxide and water is 1 in mass ratio：18 ratios
Match the mixed liquor formed.
On the basis of above technical scheme：The acid solution is the dilution heat of sulfuric acid that mass fraction is 60%-70%.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, in the present invention, aluminum alloy surface processing is easy to operate, to aluminum alloy surface using polishing, alkali cleaning, pickling mode
The attachment and oxide layer of aluminum alloy surface are removed, enables aluminum alloy to that surface is uniform, and flatness is consistent, is conducive to improve aluminium alloy table
The glossiness and subsequent treatment in face；
2nd, the present invention in, by surface lacquer treatment process, aluminum alloy surface is handled so that aluminium alloy obtain compared with
High corrosion resistance, oxidation resistent susceptibility, the service life for extending aluminium alloy, so as to improve the practical performance of heat sink.
Embodiment
The present invention is further illustrated below.Embodiments of the present invention include but not limited to the following example.
Specific embodiment
A kind of aluminum alloy surface treatment process, comprises the following steps,
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash occurred during aluminium alloy is manufactured
And protrusion polishes off, ensure that aluminum alloy surface flatness is consistent, avoid the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet
Rinse, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 50-60 DEG C of sodium hydroxide solution and handles
5-8min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald, and sodium hydroxide solution presses matter for sodium hydroxide with water
Amount is than being 1：The mixed liquor that 18 proportions form；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 4-6min, dissolves aluminium
Alloy dust attachment, acid solution are the dilution heat of sulfuric acid that mass fraction is 60%-70%；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rushed in the case where flowing clear water
Wash, dried after rinsing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing, paint vehicle used are carried out to aluminium alloy
For high temperature resistant, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
The present embodiment is in use, aluminum alloy surface processing is easy to operate, to aluminum alloy surface using polishing, alkali cleaning, pickling
Mode removes the attachment and oxide layer of aluminum alloy surface, enables aluminum alloy to that surface is uniform, and flatness is consistent, is conducive to improve aluminium and closes
The glossiness and subsequent treatment of gold surface；Subsequently through surface lacquer treatment process, aluminum alloy surface is handled so that aluminium
Alloy obtains higher corrosion resistance, oxidation resistent susceptibility, the service life for extending aluminium alloy, so as to improve the practicality of heat sink
Performance.
Embodiment 1
A kind of aluminum alloy surface treatment process, comprises the following steps,
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash occurred during aluminium alloy is manufactured
And protrusion polishes off, ensure that aluminum alloy surface flatness is consistent, avoid the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet
Rinse, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 50 DEG C of sodium hydroxide solutions and handles
5min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald, and sodium hydroxide solution presses quality for sodium hydroxide with water
Than for 1：The mixed liquor that 18 proportions form；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 4min, dissolves aluminium conjunction
Golden dust attachment, acid solution are the dilution heat of sulfuric acid that mass fraction is 60%；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rushed in the case where flowing clear water
Wash, dried after rinsing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing, paint vehicle used are carried out to aluminium alloy
For high temperature resistant, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
The present embodiment is in use, aluminum alloy surface processing is easy to operate, to aluminum alloy surface using polishing, alkali cleaning, pickling
Mode removes the attachment and oxide layer of aluminum alloy surface, enables aluminum alloy to that surface is uniform, and flatness is consistent, is conducive to improve aluminium and closes
The glossiness and subsequent treatment of gold surface；Subsequently through surface lacquer treatment process, aluminum alloy surface is handled so that aluminium
Alloy obtains higher corrosion resistance, oxidation resistent susceptibility, the service life for extending aluminium alloy, so as to improve the practicality of heat sink
Performance.
Embodiment 2
A kind of aluminum alloy surface treatment process, comprises the following steps,
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash occurred during aluminium alloy is manufactured
And protrusion polishes off, ensure that aluminum alloy surface flatness is consistent, avoid the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet
Rinse, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 55 DEG C of sodium hydroxide solutions and handles
6.5min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald, and sodium hydroxide solution presses matter for sodium hydroxide with water
Amount is than being 1：The mixed liquor that 18 proportions form；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 5min, dissolves aluminium conjunction
Golden dust attachment, acid solution are the dilution heat of sulfuric acid that mass fraction is 65%；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rushed in the case where flowing clear water
Wash, dried after rinsing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing, paint vehicle used are carried out to aluminium alloy
For high temperature resistant, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
The present embodiment is in use, aluminum alloy surface processing is easy to operate, to aluminum alloy surface using polishing, alkali cleaning, pickling
Mode removes the attachment and oxide layer of aluminum alloy surface, enables aluminum alloy to that surface is uniform, and flatness is consistent, is conducive to improve aluminium and closes
The glossiness and subsequent treatment of gold surface；Subsequently through surface lacquer treatment process, aluminum alloy surface is handled so that aluminium
Alloy obtains higher corrosion resistance, oxidation resistent susceptibility, the service life for extending aluminium alloy, so as to improve the practicality of heat sink
Performance.
Embodiment 3
A kind of aluminum alloy surface treatment process, comprises the following steps,
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash occurred during aluminium alloy is manufactured
And protrusion polishes off, ensure that aluminum alloy surface flatness is consistent, avoid the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet
Rinse, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 60 DEG C of sodium hydroxide solutions and handles
8min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald, and sodium hydroxide solution presses quality for sodium hydroxide with water
Than for 1：The mixed liquor that 18 proportions form；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 6min, dissolves aluminium conjunction
Golden dust attachment, acid solution are the dilution heat of sulfuric acid that mass fraction is 70%；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rushed in the case where flowing clear water
Wash, dried after rinsing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing, paint vehicle used are carried out to aluminium alloy
For high temperature resistant, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
The present embodiment is in use, aluminum alloy surface processing is easy to operate, to aluminum alloy surface using polishing, alkali cleaning, pickling
Mode removes the attachment and oxide layer of aluminum alloy surface, enables aluminum alloy to that surface is uniform, and flatness is consistent, is conducive to improve aluminium and closes
The glossiness and subsequent treatment of gold surface；Subsequently through surface lacquer treatment process, aluminum alloy surface is handled so that aluminium
Alloy obtains higher corrosion resistance, oxidation resistent susceptibility, the service life for extending aluminium alloy, so as to improve the practicality of heat sink
Performance.
It is the embodiment of the present invention as described above.Each preferred embodiment described previously for the present invention, it is each preferred
Preferred embodiment in embodiment if not obvious contradictory or premised on a certain preferred embodiment, it is each preferably
Embodiment can arbitrarily stack combinations use, and the design parameter in the embodiment and embodiment is merely to understand table
The invention verification process of inventor is stated, and is not used to the scope of patent protection of the limitation present invention, scope of patent protection of the invention
Still it is subject to its claims, the equivalent structure change that every description with the present invention is made, similarly should all
Comprising within the scope of the present invention.
Claims (3)
1. a kind of aluminum alloy surface treatment process, comprises the following steps, it is characterised in that：
1) surface is polished：Aluminum alloy surface is subjected to grinding process with abrasive machine, the flash that occurs during aluminium alloy is manufactured and
Protrusion polishes off, and ensures that aluminum alloy surface flatness is consistent, avoids the debris on aluminium alloy from influencing to use；
2) gases at high pressure rinse：Effect of the aluminium alloy by surface grinding process in high pressure air rifle is subjected to high-pressure jet punching
Wash, the impurity in aluminum alloy surface lines is flushed out；
3) surface and oil contaminant is handled：Aluminium alloy after gases at high pressure are rinsed is put into 50-60 DEG C of sodium hydroxide solution and handles 5-
8min, removes the greasy dirt of aluminum alloy surface, prevents aluminium alloy from producing piebald；
4) dust attachment is handled：Aluminium alloy after degreasing is put into acid solution and handles 4-6min, dissolves aluminium alloy
Dust attachment；
5) cleaning treatment：Aluminium alloy after parlkaline and acid solution processing is put and is rinsed in the case where flowing clear water, is rushed
Dried after washing；
6) spray painting is handled：Aluminium alloy after drying is placed in spraying box, spray painting processing is carried out to aluminium alloy, paint vehicle used is resistance to
High temperature, corrosion-resistant paint vehicle so that aluminum alloy surface spray painting is uniform；
7) air-dry：The aluminium alloy that paints will be sprayed place and carry out natural air drying in atmosphere.
A kind of 2. aluminum alloy surface treatment process according to claim 1, it is characterised in that：The sodium hydroxide solution is
Sodium hydroxide is 1 in mass ratio with water：The mixed liquor that 18 proportions form.
A kind of 3. aluminum alloy surface treatment process according to claim 1, it is characterised in that：The acid solution is quality
Fraction is the dilution heat of sulfuric acid of 60%-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711199281.8A CN108014985A (en) | 2017-11-26 | 2017-11-26 | A kind of aluminum alloy surface treatment process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711199281.8A CN108014985A (en) | 2017-11-26 | 2017-11-26 | A kind of aluminum alloy surface treatment process |
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| CN108014985A true CN108014985A (en) | 2018-05-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807050A (en) * | 2019-03-20 | 2019-05-28 | 广州市宏彩金属饰品有限公司 | A kind of technique for surface treatment of aluminium alloy sections |
| CN112138962A (en) * | 2019-06-28 | 2020-12-29 | 金鹏节能科技有限公司 | Heat-insulating corrosion-resistant aluminum alloy door and window surface treatment method |
| CN112609190A (en) * | 2020-12-14 | 2021-04-06 | 李元 | Surface treatment process of aluminum alloy section |
-
2017
- 2017-11-26 CN CN201711199281.8A patent/CN108014985A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807050A (en) * | 2019-03-20 | 2019-05-28 | 广州市宏彩金属饰品有限公司 | A kind of technique for surface treatment of aluminium alloy sections |
| CN112138962A (en) * | 2019-06-28 | 2020-12-29 | 金鹏节能科技有限公司 | Heat-insulating corrosion-resistant aluminum alloy door and window surface treatment method |
| CN112609190A (en) * | 2020-12-14 | 2021-04-06 | 李元 | Surface treatment process of aluminum alloy section |
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Application publication date: 20180511 |