CN107475700B - A kind of corrosion resistant copper alloy surface processing method - Google Patents
A kind of corrosion resistant copper alloy surface processing method Download PDFInfo
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- CN107475700B CN107475700B CN201710750568.9A CN201710750568A CN107475700B CN 107475700 B CN107475700 B CN 107475700B CN 201710750568 A CN201710750568 A CN 201710750568A CN 107475700 B CN107475700 B CN 107475700B
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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
- 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
- C23C22/02—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 non-aqueous solutions
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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
- 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
- C23C22/06—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 aqueous acidic solutions with pH less than 6
- C23C22/48—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 aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/52—Treatment of copper or alloys based thereon
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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
- 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
- C23C22/68—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 aqueous solutions with pH between 6 and 8
-
- 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
- C23C22/78—Pretreatment of the material to be coated
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
A kind of corrosion resistant copper alloy surface processing method, is related to anti-corrosion of metal corrosion material.It provides after copper alloy surface is carried out corrosion-resistance treatment, is remarkably improved a kind of corrosion resistant copper alloy surface processing method of the corrosion resistance of copper alloy, especially salt tolerant alkali ability.Copper alloy surface cleaning；Copper alloy corrosion-resistance treatment；Cu alloy material after corrosion-resistance treatment is cleaned with solvent, it is dry, obtain corrosion resistant copper alloy.Formate has good protective effect to copper alloy, effectively inhibits the corrosion of copper alloy matrix, prolongs the service life, and reduces corrosion bring risk, environmental-friendly.Compared with unmodified copper alloy, the gloss of the copper alloy after formate is modified itself is maintained.It is good with stability, high reliablity and beautiful advantage.Preparation process is simple, and the market competitiveness is strong, is suitble to large-scale production, is easy to industrialization.
Description
Technical field
The present invention relates to anti-corrosion of metal corrosion materials can show after copper alloy surface is carried out corrosion-resistance treatment
Write the corrosion resistance for improving copper alloy, especially a kind of corrosion resistant copper alloy surface processing method of salt tolerant alkali ability.
Background technique
Copper alloy is all very high with many valuable physicochemical characteristics, such as its thermal conductivity and conductivity, chemical stabilization
Property is strong, and tensile strength is big, easy welding, and corrosion stability is good, plasticity and ductility are excellent.It is as important basic material and function
Material is widely used in the national economic development, is that the second largest consumption that dosage is only second to aluminium alloy has in China
Non-ferrous metal.But copper alloy corrosion resistance, the especially corrosion resistance in alkaline condition or high temperature oxygen environment are poor,
And hardness is general, wear resistance is poor, makes it that can fail rapidly in relatively rugged environment.Along with copper alloy price compared with
Height further increases its performance, and being protected to it just seems more necessary.
Facts proved that preventing metallic material corrosion, most effective, the simplest method of abrasion is surface-treated to it.
A large amount of work has been done to the surface treatment of copper alloy both at home and abroad at present.
Patent US4049481A deposits one layer of binary Zinc-tin alloy in copper alloy surface first with electrodeposition process, later
Copper alloy is heat-treated again, makes to be formed transition zone between coating and copper alloy to improve coating binding performance.
And patent CN1431335, the copper controlled in temperature or copper alloy matrix surface preparation, spraying combine bottom
Then layer sprays nickel-based self-fluxing alloy coating on it again, obtains two-layer composite coating of the present invention.
Patent CN1560319 has invented the surface sulfurize permeating agent and its technique of a kind of copper or copper alloy parts, by penetration enhancer powder
It is packed into after end drying, dehydration, mixing with copper or copper alloy parts and seeps case, obtain infiltration layer through Overheating Treatment in seeping case.
Patent CN1920090, in the method that copper or copper alloy surface carry out electric spark deposition processing, using corresponding electrode
Deposition processes are carried out, under inert gas protection, carry out deposition processes using electric spark equipment.But these surface protection films or
Weaker with substrate caking power, film layer is relatively thin, and protective capability is limited；Or need to be heated at high temperature in preparation process, it can be different degrees of
Destroy the mechanical property of copper alloy itself；Or equipment is expensive, complex process cannot achieve large-scale production
Summary of the invention
It is an object of the invention to overcome above-mentioned prior art there are the shortcomings that, for current copper alloy surface processing method
Perhaps the defect of film layer protective capability deficiency or equipment expensive process complexity, provides copper alloy surface carrying out corrosion-resistant place
After reason, it is remarkably improved a kind of corrosion resistant copper alloy surface processing of the corrosion resistance of copper alloy, especially salt tolerant alkali ability
Method.
The present invention the following steps are included:
1) copper alloy surface cleans；
2) copper alloy corrosion-resistance treatment；
3) Cu alloy material after corrosion-resistance treatment is cleaned with solvent, it is dry, obtain corrosion resistant copper alloy.
In step 1), the specific method of the copper alloy surface cleaning be can comprise the following steps that
(1) Cu alloy material organic matter is removed；
(2) flowing water cleans Cu alloy material；
(3) oxidation film of Cu alloy material is removed；
(4) Cu alloy material is washed；
(5) dry Cu alloy material.
In step 1) (1) part, the removal Cu alloy material organic matter, which can adopt solvent removal Cu alloy material, to be had
Machine object, the solvent can be selected from ethyl alcohol etc.；The time of the removal Cu alloy material organic matter can be 15~100min；The copper
Alloy can be selected from one of corronil (copper-nickel alloy), ormolu (brass), copper-tin alloy (bronze) etc..
In step 1) (3) part, the oxidation film of the removal Cu alloy material can be used analysis pure acetone and remove copper removal
The time of the oxidation film of alloy material, the oxidation film of the removal Cu alloy material can be 5~100min.
In step 1) (4) part, solvent washing is can be used in the washing Cu alloy material, and the solvent can be selected from second
One of alcohol, water etc.；The time of the washing can be 5~100min.
In step 2), the specific method of the copper alloy corrosion-resistance treatment can are as follows: Cu alloy material is placed on containing corrosion
In the polar solvent of inhibitor, reaction is sealed in pressure vessel.The corrosion inhibitor can be selected from containing formic acid, formates etc.
At least one of；The formates can be selected from lithium formate, sodium formate, magnesium formate, aluminium triformate, potassium formate, ammonium formate, formic acid
At least one of calcium, zinc formate, ferric formate, copper formate, barium formate, formic acid beryllium, nickel formate, cobaltous formate, formic acid manganese etc.；It is described
Polar solvent can be selected from least one of water, amide solvent, alcohols solvent, esters solvent, ether solvent etc.；The amide
Class solvent can be selected from formamide, dimethylformamide, diethylformamide, dimethyl acetamide, diethyl acetamide, dimethyl
At least one of propionamide etc.；The alcohols solvent can be selected from least one of monohydric alcohol, dihydric alcohol, polyalcohol etc.；Institute
The temperature for stating sealing reaction can be 20~300 DEG C, and the time for sealing reaction can be 0.01~100h；It can be inhaled on copper alloy surface
With at least one layer of formate.
In step 3), the solvent can be selected from one of water, ethyl alcohol etc..
Compared with prior art, the invention has the benefit that
1. formate has good protective effect to copper alloy, effectively inhibit the corrosion of copper alloy matrix, extends and use the longevity
Life reduces corrosion bring risk, environmental-friendly.
2. the gloss of the copper alloy after formate is modified itself is maintained compared with unmodified copper alloy.Have
Stability is good, high reliablity and beautiful advantage.
3. preparation process of the invention is simple, the market competitiveness is strong, is suitble to large-scale production, is easy to industrialization.
Detailed description of the invention
Fig. 1 is the filtter gold without formate modified, the result obtained after alkali process.
Fig. 2 is the result that embodiment 1 obtains after the filtter gold alkali process of formate modified.
Fig. 3 is the SEM figure of filtter gold in Fig. 1.
Fig. 4 is the SEM figure of filtter gold in Fig. 2.
Specific embodiment
The present invention is further illustrated below:
Embodiment 1:
A kind of corrosion resistant copper alloy and its surface treatment method, comprising the following steps:
Step 1: surface clean.
(1) filtter gold of one piece of long 8cm, width 2.5cm are taken, organic matter is removed, using solvent are as follows: ethyl alcohol, duration are as follows: 15min；
(2) flowing water cleans；
(3) oxidation film is removed, using analysis pure acetone, duration are as follows: 5min；
(4) it washes, using solvent are as follows: ethyl alcohol, water, duration are as follows: 5min；
(5) dry；
Step 2: corrosion-resistance treatment.The corrosion inhibitor used is sodium formate 16g/L, polar solvent N, N- dimethyl
Formamide 0.940g/mL seals reaction in pressure vessel, and temperature is 150 DEG C, duration are as follows: 18h；
Step 3: water cleaning, it is dry.
Untreated filtter gold is put into the NaOH solution of 0.1M, temperature are as follows: 60 DEG C, duration: carry out alkali resistance for 24 hours
Test, the photo for obtaining result is Fig. 1.
The filtter gold that will be obtained after the processing of embodiment 1, is put into the NaOH solution of 0.1M, temperature are as follows: and 60 DEG C, duration: for 24 hours
Alkali resistance test is carried out, the photo for obtaining result is Fig. 2.
By the comparison of Fig. 1 and Fig. 2 it is found that untreated filtter gold has blacked, alkali resistance is poor, at embodiment 1
The filtter gold of reason, surface is smooth glossy, has alkali resistance.
Filtter gold in Fig. 1 is carried out to the observation of surface topography in scanning electron microscope.Fig. 3 is filtter gold in Fig. 1
SEM photograph.It can be seen from the figure that rough surface, has been oxidized, illustrate do not have alkali resistance.
Filtter gold in Fig. 2 is carried out to the observation of surface topography in scanning electron microscope.Fig. 4 is filtter gold in Fig. 2
SEM photograph.It can be seen from the figure that surface is smooth seamless, and it is not oxidized, there is alkali resistance.
Embodiment 2:
A kind of corrosion resistant copper alloy and its surface treatment method, comprising the following steps:
Step 1: surface clean.
(1) a copper-nickel alloy tap casting is taken, organic matter is removed, using solvent are as follows: ethyl alcohol, duration are as follows: 18min；
(2) flowing water cleans；
(3) oxidation film is removed, using analysis pure acetone, duration are as follows: 8min；
(4) it washes, using solvent are as follows: ethyl alcohol, water, duration are as follows: 8min；
(5) dry；
Step 2: corrosion-resistance treatment.For the corrosion inhibitor used for lithium formate 17g/L, polar solvent is formamide
0.942g/mL seals reaction in pressure vessel, and temperature is 160 DEG C, duration are as follows: 19h；
Step 3: ethyl alcohol cleaning, it is dry.
Embodiment 3:
A kind of corrosion resistant copper alloy and its surface treatment method, comprising the following steps:
Step 1: surface clean.
(1) brass shim spacer is taken, organic matter is removed, using solvent are as follows: ethyl alcohol, duration are as follows: 20min；
(2) flowing water cleans；
(3) oxidation film is removed, using analysis pure acetone, duration are as follows: 10min；
(4) it washes, using solvent are as follows: ethyl alcohol, water, duration are as follows: 10min；
(5) dry；
Step 2: corrosion-resistance treatment.For the corrosion inhibitor used for potassium formate 18g/L, polar solvent is diethyl formyl
Amine 0.945g/mL seals reaction in pressure vessel, and temperature is 170 DEG C, duration are as follows: 20h；
Step 3: water cleaning, it is dry.
Embodiment 4:
A kind of corrosion resistant copper alloy and its surface treatment method, comprising the following steps:
Step 1: surface clean.
(1) a copper-nickel alloy coin is taken, organic matter is removed, using solvent are as follows: ethyl alcohol, duration are as follows: 22min；
(2) flowing water cleans；
(3) oxidation film is removed, using analysis pure acetone, duration are as follows: 12min；
(4) it washes, using solvent are as follows: ethyl alcohol, water, duration are as follows: 12min；
(5) dry；
Step 2: corrosion-resistance treatment.For the corrosion inhibitor used for magnesium formate 19g/L, polar solvent is dimethylacetamide
Amine 0.948g/mL seals reaction in pressure vessel, and temperature is 180 DEG C, duration are as follows: 22h；
Step 3: ethyl alcohol cleaning, it is dry.
Embodiment 5:
A kind of corrosion resistant copper alloy and its surface treatment method, comprising the following steps:
Step 1: surface clean.
(1) one section of bronze spring is taken, organic matter is removed, using solvent are as follows: ethyl alcohol, duration are as follows: 25min；
(2) flowing water cleans；
(3) oxidation film is removed, using analysis pure acetone, duration are as follows: 15min；
(4) it washes, using solvent are as follows: ethyl alcohol, water, duration are as follows: 15min；
(5) dry；
Step 2: corrosion-resistance treatment.For the corrosion inhibitor used for ammonium formate 20g/L, polar solvent is diethyl acetyl
Amine 0.950g/mL seals reaction in pressure vessel, and temperature is 160 DEG C, duration are as follows: for 24 hours；
Step 3: water cleaning, it is dry.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of this field
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention.
Claims (10)
1. a kind of corrosion resistant copper alloy surface processing method, it is characterised in that the following steps are included:
1) copper alloy surface cleans, method particularly includes: (1) remove Cu alloy material organic matter；(2) flowing water cleans copper alloy material
Material；(3) oxidation film of Cu alloy material is removed；(4) Cu alloy material is washed；(5) dry Cu alloy material；
2) copper alloy corrosion-resistance treatment, method particularly includes: Cu alloy material is placed in the polar solvent containing corrosion inhibitor, In
Reaction is sealed in pressure vessel；The corrosion inhibitor, which is selected from, contains at least one of formic acid, formates；
3) Cu alloy material after corrosion-resistance treatment is cleaned with solvent, it is dry, obtain corrosion resistant copper alloy.
2. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that described in step 1)
Removal Cu alloy material organic matter adopts solvent removal Cu alloy material organic matter, and the solvent is selected from ethyl alcohol；It is described that copper removal is gone to close
The time of golden material organic matter is 15~100min.
3. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that described in step 1)
Copper alloy is selected from one of corronil, ormolu, copper-tin alloy.
4. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that described in step 1)
Remove oxidation film of the oxidation film of Cu alloy material using analysis pure acetone removal Cu alloy material, the removal Cu alloy material
Oxidation film time be 5~100min.
5. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that in step 1) (4) portion
In point, the washing Cu alloy material is washed using solvent, and the solvent is selected from one of ethyl alcohol, water；The washing when
Between be 5~100min.
6. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that the formates is selected from
Lithium formate, sodium formate, magnesium formate, aluminium triformate, potassium formate, ammonium formate, calcium formate, zinc formate, ferric formate, copper formate, formic acid
At least one of barium, formic acid beryllium, nickel formate, cobaltous formate, formic acid manganese.
7. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that the polar solvent choosing
From at least one of water, amide solvent, alcohols solvent, esters solvent, ether solvent.
8. a kind of corrosion resistant copper alloy surface processing method as claimed in claim 7, it is characterised in that the amide solvent
In formamide, dimethylformamide, diethylformamide, dimethyl acetamide, diethyl acetamide, dimethylpropionamide
At least one；The alcohols solvent is selected from least one of monohydric alcohol, dihydric alcohol, polyalcohol.
9. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that the sealing reaction
Temperature is 20~300 DEG C, and the time for sealing reaction is 0.01~100h；At least one layer of formic acid is adsorbed on copper alloy surface
Root.
10. a kind of corrosion resistant copper alloy surface processing method as described in claim 1, it is characterised in that in step 3), institute
It states solvent and is selected from one of water, ethyl alcohol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710750568.9A CN107475700B (en) | 2017-08-28 | 2017-08-28 | A kind of corrosion resistant copper alloy surface processing method |
| PCT/CN2018/101011 WO2019042159A1 (en) | 2017-08-28 | 2018-08-17 | Anticorrosion treatment method for copper-containing material |
| JP2020512000A JP6964362B2 (en) | 2017-08-28 | 2018-08-17 | Anticorrosion treatment method for copper-containing materials |
| KR1020207004730A KR102432409B1 (en) | 2017-08-28 | 2018-08-17 | Method of anticorrosive treatment of copper-containing materials |
| EP18852202.3A EP3677704B1 (en) | 2017-08-28 | 2018-08-17 | Anticorrosion treatment method for copper-containing material |
| US16/641,780 US11982002B2 (en) | 2017-08-28 | 2018-08-17 | Method for anti-corrosion treatment of metallic copper-containing materials |
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| CN201710750568.9A CN107475700B (en) | 2017-08-28 | 2017-08-28 | A kind of corrosion resistant copper alloy surface processing method |
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| WO2019042159A1 (en) * | 2017-08-28 | 2019-03-07 | 厦门大学 | Anticorrosion treatment method for copper-containing material |
| CN108690992A (en) * | 2018-06-06 | 2018-10-23 | 天通（嘉兴）新材料有限公司 | A kind of optical coating copper jig overlay coating removal treatment process |
| CN112011797A (en) * | 2020-09-24 | 2020-12-01 | 安博科(佛山)金属有限公司 | Corrosion-resistant copper alloy surface treatment method |
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| GB2125833A (en) * | 1982-08-11 | 1984-03-14 | Bnf Metals Tech Centre | Conversion coatings |
| CN102312232A (en) * | 2011-07-27 | 2012-01-11 | 中国科学院宁波材料技术与工程研究所 | Environment-friendly copper and copper alloy surface passivation treatment fluid and passivation treatment method |
| CN102453891A (en) * | 2010-10-18 | 2012-05-16 | 王振宇 | Surface treatment method for copper and copper alloy with strong corrosion resistance |
| CN106521473A (en) * | 2016-11-18 | 2017-03-22 | 安徽工业大学 | Copper and copper alloy surface anticorrosion liquid and preparation method thereof |
| CN106676538A (en) * | 2017-01-18 | 2017-05-17 | 宁波金田铜业(集团)股份有限公司 | Environment-friendly technology for copper and copper alloy surface treatment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3937131B2 (en) * | 2001-06-15 | 2007-06-27 | 栗田工業株式会社 | Surface treatment method for copper members |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2125833A (en) * | 1982-08-11 | 1984-03-14 | Bnf Metals Tech Centre | Conversion coatings |
| CN102453891A (en) * | 2010-10-18 | 2012-05-16 | 王振宇 | Surface treatment method for copper and copper alloy with strong corrosion resistance |
| CN102312232A (en) * | 2011-07-27 | 2012-01-11 | 中国科学院宁波材料技术与工程研究所 | Environment-friendly copper and copper alloy surface passivation treatment fluid and passivation treatment method |
| CN106521473A (en) * | 2016-11-18 | 2017-03-22 | 安徽工业大学 | Copper and copper alloy surface anticorrosion liquid and preparation method thereof |
| CN106676538A (en) * | 2017-01-18 | 2017-05-17 | 宁波金田铜业(集团)股份有限公司 | Environment-friendly technology for copper and copper alloy surface treatment |
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