CN108220945A - A kind of Al alloy parts blackening process method - Google Patents
A kind of Al alloy parts blackening process method Download PDFInfo
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- CN108220945A CN108220945A CN201711489784.9A CN201711489784A CN108220945A CN 108220945 A CN108220945 A CN 108220945A CN 201711489784 A CN201711489784 A CN 201711489784A CN 108220945 A CN108220945 A CN 108220945A
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- parts
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- alloy parts
- blackening
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1827—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment only one step pretreatment
- C23C18/1834—Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/66—Treatment of aluminium or alloys based thereon
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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- Cosmetics (AREA)
Abstract
The present invention discloses a kind of Al alloy parts blackening process method, including following operating procedure：（1）After molding Al alloy parts cleaning treatment will be prepared, it is put into activating solution and carries out activation process；（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after 30 40min of immersion treatment, are taken out, are cleaned surface；（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after 5 8min of immersion treatment, are taken out, after cleaning surface, finished product.A kind of method of aluminium alloy blackening process provided by the invention, it is easy to operate, it is of low cost, it is suitble to the smaller Al alloy parts of processing, treated Al alloy parts, black film is uniform, and bond strength is high.
Description
Technical field
The invention belongs to aluminum alloy processing technology fields, and in particular to a kind of Al alloy parts blackening process method.
Background technology
In the industrial production, aluminium and Al alloy parts will carry out surface blackening processing, generally use alumilite process after stain
Black technique.The technique is feasible for larger-size workpiece, but we can usually encounter the smaller workpiece of some sizes,
All it is infeasible on production cost and production efficiency using alumilite process after stain black to this kind of workpiece.Therefore, it is anxious
A kind of chemically blackening technique is needed, smaller aluminium workpiece carries out blackening process to size.
Invention content
The object of the present invention is to provide a kind of Al alloy parts blackening process methods.
The present invention is achieved by the following technical solutions.
A kind of Al alloy parts blackening process method, including following operating procedure：
（1）After molding Al alloy parts cleaning treatment will be prepared, be put into activating solution and carry out activation process, wherein activating solution by
The component of following parts by weight is made：4-8 parts of sodium hydroxide, 1-3 parts of ethanol amine, 0.6-0.9 parts of ammonium chromate, 550-600 parts of water；
（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after immersion treatment 30-40min, are taken out, are cleaned
Surface, wherein zincate solution are made of the component of following parts by weight：40-50 parts of sodium hydroxide, 8-11 parts of zinc oxide, zinc fluoroborate 4-
7 parts, 120-150 parts of water；
（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after immersion treatment 5-8min, are taken out, are cleaned table
Behind face, finished product, wherein hair blackening liquid are made of the component of following parts by weight：45-53 parts of sodium hydroxide, sodium perborate 11-14
Part, 1-3 parts of dilauroyl peroxide, 250-300 parts of water.
Specifically, above-mentioned steps（1）In, the temperature of activating solution is 45-55 DEG C.
Specifically, above-mentioned steps（2）In, the temperature of above-mentioned zincate solution is 55-60 DEG C.
Specifically, above-mentioned steps（3）In, the temperature of hair blackening liquid is 45-49 DEG C.
From the above technical scheme, it can be seen that the beneficial effects of the invention are as follows：
A kind of method of aluminium alloy blackening process provided by the invention, it is easy to operate, it is of low cost, the smaller aluminium of processing is suitble to close
Metal working part, treated Al alloy parts, black film is uniform, and bond strength is high.Wherein, the present invention is before blackening process, to work
Part carries out leaching zinc processing, can effectively promote the effect of nigrescence；Hair blackening liquid selects sodium perborate, dilauroyl peroxide as oxygen
Agent, hair blackening liquid property are stablized, and obtained black film is evenly distributed and densification.
Specific embodiment
Below by specific embodiment, the present invention is described in detail, but the purposes of these illustrative embodiments and
Purpose is only used for enumerating the present invention, not forms any type of any restriction to the real protection scope of the present invention, more non-to incite somebody to action
Protection scope of the present invention is confined to this.
Embodiment 1
A kind of Al alloy parts blackening process method, including following operating procedure：
（1）After molding Al alloy parts cleaning treatment will be prepared, be put into activating solution and carry out activation process, wherein activating solution by
The component of following parts by weight is made：4 parts of sodium hydroxide, 1 part of ethanol amine, 0.6 part of ammonium chromate, 550 parts of water；
（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after immersion treatment 30min, are taken out, are cleaned table
Face, wherein zincate solution are made of the component of following parts by weight：40 parts of sodium hydroxide, 8 parts of zinc oxide, 4 parts of zinc fluoroborate, water 120
Part；
（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after immersion treatment 5min, are taken out, are cleaned surface
Afterwards, finished product, wherein hair blackening liquid are made of the component of following parts by weight：45 parts of sodium hydroxide, 11 parts of sodium perborate, peroxidating
Two 1 part of lauroyl, 250 parts of water.
Specifically, above-mentioned steps（1）In, the temperature of activating solution is 45 DEG C.
Specifically, above-mentioned steps（2）In, the temperature of above-mentioned zincate solution is 55 DEG C.
Specifically, above-mentioned steps（3）In, the temperature of hair blackening liquid is 45 DEG C.
Embodiment 2
A kind of Al alloy parts blackening process method, including following operating procedure：
（1）After molding Al alloy parts cleaning treatment will be prepared, be put into activating solution and carry out activation process, wherein activating solution by
The component of following parts by weight is made：6 parts of sodium hydroxide, 2 parts of ethanol amine, 0.7 part of ammonium chromate, 580 parts of water；
（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after immersion treatment 35min, are taken out, are cleaned table
Face, wherein zincate solution are made of the component of following parts by weight：45 parts of sodium hydroxide, 9 parts of zinc oxide, 6 parts of zinc fluoroborate, water 130
Part；
（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after immersion treatment 7min, are taken out, are cleaned surface
Afterwards, finished product, wherein hair blackening liquid are made of the component of following parts by weight：48 parts of sodium hydroxide, 12 parts of sodium perborate, peroxidating
Two 2 parts of lauroyl, 280 parts of water.
Specifically, above-mentioned steps（1）In, the temperature of activating solution is 50 DEG C.
Specifically, above-mentioned steps（2）In, the temperature of above-mentioned zincate solution is 58 DEG C.
Specifically, above-mentioned steps（3）In, the temperature of hair blackening liquid is 47 DEG C.
Embodiment 3
A kind of Al alloy parts blackening process method, including following operating procedure：
（1）After molding Al alloy parts cleaning treatment will be prepared, be put into activating solution and carry out activation process, wherein activating solution by
The component of following parts by weight is made：8 parts of sodium hydroxide, 3 parts of ethanol amine, 0.9 part of ammonium chromate, 600 parts of water；
（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after immersion treatment 40min, are taken out, are cleaned table
Face, wherein zincate solution are made of the component of following parts by weight：50 parts of sodium hydroxide, 11 parts of zinc oxide, 7 parts of zinc fluoroborate, water 150
Part；
（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after immersion treatment 8min, are taken out, are cleaned surface
Afterwards, finished product, wherein hair blackening liquid are made of the component of following parts by weight：53 parts of sodium hydroxide, 14 parts of sodium perborate, peroxidating
Two 3 parts of lauroyl, 300 parts of water.
Specifically, above-mentioned steps（1）In, the temperature of activating solution is 55 DEG C.
Specifically, above-mentioned steps（2）In, the temperature of above-mentioned zincate solution is 60 DEG C.
Specifically, above-mentioned steps（3）In, the temperature of hair blackening liquid is 49 DEG C.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (4)
- A kind of 1. Al alloy parts blackening process method, which is characterized in that including following operating procedure：（1）After molding Al alloy parts cleaning treatment will be prepared, be put into activating solution and carry out activation process, wherein activating solution by The component of following parts by weight is made：4-8 parts of sodium hydroxide, 1-3 parts of ethanol amine, 0.6-0.9 parts of ammonium chromate, 550-600 parts of water；（2）Step will be passed through（1）The Al alloy parts of processing are put into zincate solution, after immersion treatment 30-40min, are taken out, are cleaned Surface, wherein zincate solution are made of the component of following parts by weight：40-50 parts of sodium hydroxide, 8-11 parts of zinc oxide, zinc fluoroborate 4- 7 parts, 120-150 parts of water；（3）Step will be passed through（2）The Al alloy parts of processing are put into hair blackening liquid, after immersion treatment 5-8min, are taken out, are cleaned table Behind face, finished product, wherein hair blackening liquid are made of the component of following parts by weight：45-53 parts of sodium hydroxide, sodium perborate 11-14 Part, 1-3 parts of dilauroyl peroxide, 250-300 parts of water.
- A kind of 2. Al alloy parts blackening process method according to claim 1, which is characterized in that above-mentioned steps（1）In, The temperature of activating solution is 45-55 DEG C.
- A kind of 3. Al alloy parts blackening process method according to claim 1, which is characterized in that above-mentioned steps（2）In, The temperature of above-mentioned zincate solution is 55-60 DEG C.
- A kind of 4. Al alloy parts blackening process method according to claim 1, which is characterized in that above-mentioned steps（3）In, The temperature of hair blackening liquid is 45-49 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711489784.9A CN108220945A (en) | 2017-12-30 | 2017-12-30 | A kind of Al alloy parts blackening process method |
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| CN201711489784.9A CN108220945A (en) | 2017-12-30 | 2017-12-30 | A kind of Al alloy parts blackening process method |
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| CN108220945A true CN108220945A (en) | 2018-06-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042383A (en) * | 2019-03-27 | 2019-07-23 | 祝亚琴 | High temperature aluminium blackening agent for surface |
| CN110042382A (en) * | 2019-03-27 | 2019-07-23 | 祝亚琴 | Room temperature aluminium blackening agent for surface |
| CN114990538A (en) * | 2022-08-04 | 2022-09-02 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
-
2017
- 2017-12-30 CN CN201711489784.9A patent/CN108220945A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042383A (en) * | 2019-03-27 | 2019-07-23 | 祝亚琴 | High temperature aluminium blackening agent for surface |
| CN110042382A (en) * | 2019-03-27 | 2019-07-23 | 祝亚琴 | Room temperature aluminium blackening agent for surface |
| CN114990538A (en) * | 2022-08-04 | 2022-09-02 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
| CN114990538B (en) * | 2022-08-04 | 2022-11-25 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
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Application publication date: 20180629 |
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