CN106567108A - Aluminum material galvanization method - Google Patents
Aluminum material galvanization method Download PDFInfo
- Publication number
- CN106567108A CN106567108A CN201610984849.6A CN201610984849A CN106567108A CN 106567108 A CN106567108 A CN 106567108A CN 201610984849 A CN201610984849 A CN 201610984849A CN 106567108 A CN106567108 A CN 106567108A
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- China
- Prior art keywords
- aluminium
- aluminum material
- solution
- solvent
- sodium
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention belongs to the technical field of machinery, and particularly relates to an aluminum material galvanization method. The aluminum material galvanization method is characterized by comprising the following steps of (1) carrying out oxide skin treatment on the surface of an aluminum material, treating the aluminum material with vapor blasting, wiping the aluminum material with absorbent cotton dipped in solvent to remove greasy dirt, and then wiping the aluminum material with clean cotton cloth for one to three times; (2) preparing an acidic solution, keeping the temperature of the acidic solution between 25 DEG C to 40 DEG C, dipping the aluminum material in the acidic solution for 10 minutes to 15 minutes, and then carrying out washing and drying; (3) dipping the etched aluminum alloy in an alkaline solution, keeping for 60 seconds to 120 seconds under the room temperature, soaking the aluminum alloy in the alkaline solution for 3 minutes to 5 minutes after carrying out washing on the aluminum alloy, and then carrying out washing and drying; and (4) dipping the galvanized aluminum alloy in an electroplating solution, keeping for 30 seconds to 60 seconds while the temperature of the electroplating solution is controlled within the range from 60 DEG C to 80 DEG C, taking out the aluminum alloy, and carrying out drying. With the aluminum material galvanization method, the time of exposure of the aluminum material in air is obviously prolonged without oxidation corrosion.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of aluminium galvanized method.
Background technology
Aluminum and aluminium alloy are played because of its distinctive physicochemical properties in numerous areas such as electronics, Aero-Space, national defence
Greatly application, but its hardness is low, wear-resisting, corrosion-resistant, can not increasingly meet application demand, and aluminum and aluminum alloy surface are plated
Nickel can significantly improve case hardness, wear-resisting and decay resistance, but also give more functional characteristics, such as soldering, can
Polishability etc., can further expand its application.
Aluminium belongs to chemical nickel plating base material, the general acid solution chemical nickel plating of existing nickel plating, and chemical nickel plating is with regard to its essence
Speech, is the metallurgical process of a self-catalysis, because aluminum is a kind of active metal of comparison, with many kinds of metal ions in acidic bath
Generation displacement reaction, in aluminium material surface loose coarse contact coating is formed, and is easily caused and have on coating pit, or even can be tight
Ghost image rings the bond strength of coating and matrix.
The information for being disclosed in the background section is merely intended to increase the understanding of the general background to the present invention, and should not
When the prior art for being considered to recognize or imply in any form the information structure well known to persons skilled in the art.
The content of the invention
The present invention provides a kind of aluminium galvanized method, and method is simply effective, can remove aluminium material surface oxidation material and miscellaneous
Matter, makes aluminium be smoothed out next process.
To solve above technical problem, the present invention provides following technical scheme：
A kind of aluminium galvanized method, it is characterised in that comprise the following steps：
(1) solvent is first dipped in aluminium material surface with absorbent cotton to carry out wiping 1-2 time, except degreasing after, then with the cotton of cleaning
Wipe 1-3 time；
(2) acid solution is configured, acid solution is being incubated between 25-40 DEG C, after dipping 10-15min, washed, do
It is dry；
(3) by the aluminium alloy immersion alkaline solution after etch, 60-120s is kept at room temperature, it is molten in alkalescence after washing
Impregnate in liquid after 3-5min, wash, be dried；
(4) 30-60s is kept in the aluminium alloy immersion electroplating solution after will be zinc-plated, the temperature control of electroplating solution is in 60-80
DEG C, take out, it is dried.
Preferably, solvent described in step (1) is arbitrary in trichloro ethylene, ethyl acetate, acetone, butanone and gasoline
Kind.
Preferably, acid solution described in step (2) includes by mass percentage following components：Ammonium acid fluoride 3-
3.5%th, Zinc Oxide 20-26%, poly- sodium tripolyphosphate 2-2.5%, nitric acid 50-60%, acetic acid 0.4-0.6%, balance of water.
Preferably, alkaline solution described in step (3) presses mass volume ratio including following components：The hydroxide of 500g/L
The sodium tripolyphosphate of sodium, the Zinc Oxide of 100g/L, the sodium potassium tartrate tetrahydrate of 10g/L and 10g/L, solvent is distilled water.
Preferably, electroplating solution described in step (4) presses mass volume ratio including following components：The nickel sulfate of 33g/L,
The sodium hypophosphite of 15g/L and the sodium citrate of 50g/L, solvent is distilled water.
Compared with prior art, the present invention has the advantages that：
The aluminium galvanized method of the present invention is remarkably reinforced can aluminium aerial open-assembly time, without being invaded by oxidation
Erosion.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is described in detail, it is to be understood that the present invention
Protection domain is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredients.
Embodiment 1：
A kind of aluminium galvanized method, comprises the following steps：
(1) industrial naptha is first dipped in aluminium material surface with absorbent cotton to carry out wiping 1 time, except degreasing after, then the cotton to clean
Cloth is wiped 1 time；
(2) acid solution is configured, acid solution is being incubated between 25 DEG C, after dipping 10min, washed, be dried；It is described
Acid solution includes by mass percentage following components：Ammonium acid fluoride 3%, Zinc Oxide 20%, poly- sodium tripolyphosphate 2%, nitric acid
50%th, acetic acid 0.4%, balance of water；
(3, by the aluminium alloy immersion alkaline solution after etch, keep at room temperature 60s, soak in alkaline solution after washing
After stain 3min, wash, be dried；The alkaline solution presses mass volume ratio including following components：The sodium hydroxide of 500g/L,
The sodium tripolyphosphate of the Zinc Oxide of 100g/L, the sodium potassium tartrate tetrahydrate of 10g/L and 10g/L, solvent is distilled water；
(4) after will be zinc-plated aluminium alloy immersion electroplating solution in keep 30-60s, the temperature control of electroplating solution at 60 DEG C,
Take out, be dried；The electroplating solution presses mass volume ratio including following components：The nickel sulfate of 33g/L, the sodium hypophosphite of 15g/L
With the sodium citrate of 50g/L, solvent is distilled water.
Embodiment 2：
A kind of aluminium galvanized method, comprises the following steps：
(1) solvent trichlorethylene is first dipped in aluminium material surface with absorbent cotton to carry out wiping 2 times, except degreasing after, then to clean
Cotton wipe 3 times；
(2) acid solution is configured, acid solution is being incubated between 40 DEG C, after dipping 15min, washed, be dried；It is described
Acid solution includes by mass percentage following components：Ammonium acid fluoride 3.5%, Zinc Oxide 26%, poly- sodium tripolyphosphate 2.5%,
Nitric acid 60%, acetic acid 0.6%, balance of water；
(3) by the aluminium alloy immersion alkaline solution after etch, 120s is kept at room temperature, after washing in alkaline solution
After dipping 5min, wash, be dried；The alkaline solution presses mass volume ratio including following components：The sodium hydroxide of 500g/L,
The sodium tripolyphosphate of the Zinc Oxide of 100g/L, the sodium potassium tartrate tetrahydrate of 10g/L and 10g/L, solvent is distilled water；
(4) after will be zinc-plated aluminium alloy immersion electroplating solution in keep 30-60s, the temperature control of electroplating solution at 80 DEG C,
Take out, be dried.The electroplating solution presses mass volume ratio including following components：The nickel sulfate of 33g/L, the sodium hypophosphite of 15g/L
With the sodium citrate of 50g/L, solvent is distilled water.
Embodiment 3：
A kind of aluminium galvanized method, comprises the following steps：
(1) solvent acetic acid ethyl ester is first dipped in aluminium material surface with absorbent cotton to carry out wiping 2 times, except degreasing after, then to clean
Cotton wipe 2 times；
(2) acid solution is configured, acid solution is being incubated between 30 DEG C, after dipping 12min, washed, be dried；It is described
Acid solution includes by mass percentage following components：Ammonium acid fluoride 3.2%, Zinc Oxide 22%, poly- sodium tripolyphosphate 2.2%,
Nitric acid 55%, acetic acid 0.5%, balance of water；
(3) by the aluminium alloy immersion alkaline solution after etch, 90s is kept at room temperature, after washing in alkaline solution
After dipping 4min, wash, be dried；The alkaline solution presses mass volume ratio including following components：The sodium hydroxide of 500g/L,
The sodium tripolyphosphate of the Zinc Oxide of 100g/L, the sodium potassium tartrate tetrahydrate of 10g/L and 10g/L, solvent is distilled water；
(4) after will be zinc-plated aluminium alloy immersion electroplating solution in keep 30-60s, the temperature control of electroplating solution at 70 DEG C,
Take out, be dried.The electroplating solution presses mass volume ratio including following components：The nickel sulfate of 33g/L, the sodium hypophosphite of 15g/L
With the sodium citrate of 50g/L, solvent is distilled water.
Processed using surface of the aluminium galvanized method described in embodiment 1-3 for aluminum product, as a result found：This
Bright method can make aluminium aerial open-assembly time be remarkably reinforced more than 2 times, and aluminium will not be invaded in 2 years by oxidation
Erosion.
It is aforementioned to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (5)
1. a kind of aluminium galvanized method, it is characterised in that comprise the following steps：
(1) solvent is first dipped in aluminium material surface with absorbent cotton to carry out wiping 1-2 time, except degreasing after, then the cotton wiping to clean
1-3 time；
(2) acid solution is configured, acid solution is being incubated between 25-40 DEG C, after dipping 10-15min, washed, be dried；
(3) by the aluminium alloy immersion alkaline solution after etch, 60-120s is kept at room temperature, after washing in alkaline solution
After dipping 3-5min, wash, be dried；
(4) after will be zinc-plated aluminium alloy immersion electroplating solution in keep 30-60s, the temperature control of electroplating solution at 60-80 DEG C,
Take out, be dried.
2. aluminium galvanized method according to claim 1, it is characterised in that solvent described in step (1) be trichloro ethylene,
Any one in ethyl acetate, acetone, butanone and gasoline.
3. aluminium galvanized method according to claim 1, it is characterised in that acid solution described in step (2) presses quality
Percentage ratio includes following components：Ammonium acid fluoride 3-3.5%, Zinc Oxide 20-26%, poly- sodium tripolyphosphate 2-2.5%, nitric acid 50-
60%th, acetic acid 0.4-0.6%, balance of water.
4. aluminium galvanized method according to claim 1, it is characterised in that alkaline solution described in step (3) presses quality
Volume ratio includes following components：The sodium hydroxide of 500g/L, the Zinc Oxide of 100g/L, the sodium potassium tartrate tetrahydrate of 10g/L and 10g/L's
Sodium tripolyphosphate, solvent is distilled water.
5. aluminium galvanized method according to claim 1, it is characterised in that electroplating solution described in step (4) presses quality
Volume ratio includes following components：The sodium citrate of the nickel sulfate of 33g/L, the sodium hypophosphite of 15g/L and 50g/L, solvent is distillation
Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610984849.6A CN106567108A (en) | 2016-11-09 | 2016-11-09 | Aluminum material galvanization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610984849.6A CN106567108A (en) | 2016-11-09 | 2016-11-09 | Aluminum material galvanization method |
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| CN106567108A true CN106567108A (en) | 2017-04-19 |
Family
ID=58540591
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| CN201610984849.6A Pending CN106567108A (en) | 2016-11-09 | 2016-11-09 | Aluminum material galvanization method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048883A (en) * | 2017-12-04 | 2018-05-18 | 泰州康乾机械制造有限公司 | Cast aluminium conductor silver-plated pre-treatment alkaline zinc-electroplating plating solution and its application method |
| CN115161733A (en) * | 2022-09-08 | 2022-10-11 | 苏州优缘建材有限公司 | Surface treatment structure of aluminum alloy and preparation method thereof |
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| JPH10237576A (en) * | 1997-02-26 | 1998-09-08 | Nippon Steel Corp | Aluminum alloy sheet excellent in formability, baking finish hardenability, chemical conversion treatment property, and corrosion resistance and its production |
| KR20050056398A (en) * | 2003-12-10 | 2005-06-16 | 현대하이스코 주식회사 | The method of developing zn-mg alloy electroplated steel sheet in sulfate bath |
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| CN101654798A (en) * | 2008-08-21 | 2010-02-24 | 上村工业株式会社 | Method of surface treatment for aluminum or aluminum alloy |
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| CN102936741A (en) * | 2012-10-16 | 2013-02-20 | 广东工业大学 | Nickel base alloy pre-planting electroplating method for aluminum or aluminum alloy |
| CN104233420A (en) * | 2013-06-14 | 2014-12-24 | 无锡市森信精密机械厂 | Method for directly electroplating high-binding-force nickel layer on surface of aluminum or aluminum alloy |
| CN107059026A (en) * | 2017-07-05 | 2017-08-18 | 合肥万之景门窗有限公司 | A kind of surface treatment method of aluminum alloy materials |
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2016
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237576A (en) * | 1997-02-26 | 1998-09-08 | Nippon Steel Corp | Aluminum alloy sheet excellent in formability, baking finish hardenability, chemical conversion treatment property, and corrosion resistance and its production |
| KR20050056398A (en) * | 2003-12-10 | 2005-06-16 | 현대하이스코 주식회사 | The method of developing zn-mg alloy electroplated steel sheet in sulfate bath |
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| CN101654798A (en) * | 2008-08-21 | 2010-02-24 | 上村工业株式会社 | Method of surface treatment for aluminum or aluminum alloy |
| CN101768768A (en) * | 2008-12-26 | 2010-07-07 | 比亚迪股份有限公司 | Aluminum alloy cyanide-free and nickel-free electroplating method and electroplating products thereof |
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| CN104233420A (en) * | 2013-06-14 | 2014-12-24 | 无锡市森信精密机械厂 | Method for directly electroplating high-binding-force nickel layer on surface of aluminum or aluminum alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048883A (en) * | 2017-12-04 | 2018-05-18 | 泰州康乾机械制造有限公司 | Cast aluminium conductor silver-plated pre-treatment alkaline zinc-electroplating plating solution and its application method |
| CN115161733A (en) * | 2022-09-08 | 2022-10-11 | 苏州优缘建材有限公司 | Surface treatment structure of aluminum alloy and preparation method thereof |
| CN115161733B (en) * | 2022-09-08 | 2022-12-13 | 苏州优缘建材有限公司 | Surface treatment structure of aluminum alloy and preparation method thereof |
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Application publication date: 20170419 |
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