CN112144049A - Copper material chromium-free passivator and preparation method and use method thereof - Google Patents
Copper material chromium-free passivator and preparation method and use method thereof Download PDFInfo
- Publication number
- CN112144049A CN112144049A CN201910679837.6A CN201910679837A CN112144049A CN 112144049 A CN112144049 A CN 112144049A CN 201910679837 A CN201910679837 A CN 201910679837A CN 112144049 A CN112144049 A CN 112144049A
- Authority
- CN
- China
- Prior art keywords
- copper material
- chromium
- free passivator
- free
- material chromium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C23C22/40—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 containing molybdates, tungstates or vanadates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a copper material chromium-free passivator which is prepared by mixing the following raw materials in percentage by mass: 1-10% of triazole derivative, 2-15% of organic solvent, 0.1-0.5% of complexing agent, 1-5% of pH value regulator, 0.1-1% of wetting agent, 0.5-2% of corrosion inhibitor and the balance of water; the copper material chromium-free passivator has the characteristics of environmental protection, no toxicity, simple operation, easy maintenance and excellent corrosion resistance, and can be applied to surface chromium-free passivation treatment of copper materials such as brass, red copper, bronze, phosphor bronze and the like.
Description
Technical Field
The invention relates to the technical field of environmental protection and corrosion prevention in the copper material industry, in particular to a chromium-free copper passivator and a preparation method and a use method thereof.
Background
At present, with the enhancement of environmental protection consciousness, the environmental protection requirement of pretreatment liquid medicine used in the aspect of copper material processing is correspondingly improved. Various structural components such as bolts, nuts, gaskets, containers, hinges, rivets, covers, brackets, gears, precision bearings, high-pressure bearings and the like are frequently made of copper materials such as brass, red copper, bronze, phosphor bronze and the like in the manufacturing and production process, but the copper materials are easy to discolor and corrode the surface of the copper materials in the production, use, storage and transportation processes due to the active chemical properties of the copper materials, the appearance and the conductivity of the goods are seriously affected, and in order to improve the surface quality and the service life of the goods, the corrosion prevention treatment is required.
The traditional copper material surface passivation treatment process mainly uses inorganic chromate, and although the methods are very effective, the treatment methods have the following major defects: poor environmental compatibility and high use cost. The copper material chromium-free passivator used in the current market mainly uses single Benzotriazole (BTA) to passivate the copper material, and the passivation film layer is not compact enough, so that the copper material is easy to have poor corrosion resistance, discolor and other phenomena in the preservation process.
Therefore, in view of the above, it is very important to find a copper material chromium-free passivator which is environment-friendly, toxic, simple to use and excellent in corrosion resistance to meet the market demand.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a copper material chromium-free passivating agent, a preparation method and a using method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the copper material chromium-free passivator is prepared by mixing the following raw materials in percentage by mass: 1-10% of triazole derivative, 2-15% of organic solvent, 0.1-0.5% of complexing agent, 1-5% of pH value regulator, 0.1-1% of wetting agent, 0.5-2% of corrosion inhibitor and the balance of water.
Further, the triazole derivative is one or more of p-ethyl triazole terphenyl, methyl benzotriazole, 5-carboxyl benzotriazole, 1-hydroxy benzotriazole and chloromethyl benzotriazole.
Further, the organic solvent is one or more of methanol, N-dimethylformamide, ethanol, dimethyl sulfoxide, isopropanol and glycerol.
Further, the complexing agent is one or more of EDTA-2Na, citric acid, malonic acid and sodium gluconate.
Further, the pH value regulator is one or more of sodium carbonate, sodium hydroxide, potassium hydroxide and ammonia water.
Further, the wetting agent is one or more of polyoxyethylene alkylphenol ether, Tourette TRITON X-405, polyoxyethylene fatty alcohol ether and polyoxyethylene polyoxypropylene block copolymer.
Further, the corrosion inhibitor is one or more of hexadecylamine, sodium molybdate, sodium tungstate, sodium vanadate and mercapto benzothiazole.
Meanwhile, the invention also provides a preparation method for preparing the copper material chromium-free passivator, which comprises the following steps: s1, adding a part of water into the triazole derivative at room temperature, and uniformly stirring, wherein the water is used in an amount of 50-80 wt% of the total amount of water in the step; s2, adding an organic solvent into the mixture obtained in the step S1, and uniformly stirring; s3, adding a complexing agent into the mixture obtained in the step S2, and uniformly stirring; s4, adding a pH value regulator into the mixture obtained in the step S3, and uniformly stirring; s5, adding a wetting agent into the mixture obtained in the step S4, and uniformly stirring; s6, adding a corrosion inhibitor into the mixture obtained in the step S5, and uniformly stirring; and S7, adding the rest water into the mixture obtained in the step S6, and uniformly stirring to obtain the copper material chromium-free passivation agent.
In addition, the invention also provides a use method of the copper material chromium-free passivator, which comprises the following steps: step one, alkaline phosphorus-free ultrasonic degreasing, wherein the treatment temperature is 40-50 ℃, the treatment time is 5-10min, and the alkalinity is 8-15; step two, two-pass overflow water washing with the PH value of 6-7; step three, activating treatment, wherein the treatment temperature is above the freezing point, and the treatment time is 0.5-1 min; step four, performing; two-pass overflow water washing is carried out, and the PH value is 6-7; fifthly, carrying out surface treatment on the metal by using a copper material chromium-free passivating agent, wherein the process parameters are that the pH value is neutral and the treatment is carried out above the freezing point, the treatment time is 0.5-1min, and the treatment mode is soaking; step six, two-pass overflow water washing is carried out, and the pH value is 6-7; step seven: and (5) drying.
Compared with the prior art, the scheme has the beneficial technical effects that: the copper material chromium-free passivator provided by the scheme has the characteristics of environmental protection, no toxicity, simplicity in operation and manufacture, easiness in maintenance, excellent corrosion resistance and the like, and can be widely applied to surface chromium-free passivation treatment of copper materials such as brass, red copper, bronze, phosphor bronze and the like.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The scheme aims at the problems that a single Benzotriazole (BTA) is mainly used for passivating a copper material in a copper material chromium-free passivating agent used in the market, and a passivating film layer of the copper material is not compact enough, so that the copper material is easy to have poor corrosion resistance, color change and the like in a preservation process.
Example one
Firstly, the embodiment provides a copper material chromium-free passivator, which is formed by mixing the following raw materials in percentage by mass: 1-10% of triazole derivative, 2-15% of organic solvent, 0.1-0.5% of complexing agent, 1-5% of pH value regulator, 0.1-1% of wetting agent, 0.5-2% of corrosion inhibitor and the balance of water.
In practice, the triazole derivative is one or more of p-ethyl triazole terphenyl, methyl benzotriazole, 5-carboxyl benzotriazole, 1-hydroxy benzotriazole and chloromethyl benzotriazole; the organic solvent is one or more of methanol, N-dimethylformamide, ethanol, dimethyl sulfoxide, isopropanol and glycerol; the complexing agent is one or more of EDTA-2Na, citric acid, malonic acid and sodium gluconate; the pH value regulator is one or more of sodium carbonate, sodium hydroxide, potassium hydroxide and ammonia water; the wetting agent is one or more of polyoxyethylene alkylphenol ether, Dow TRITON X-405, polyoxyethylene fatty alcohol ether and polyoxyethylene polyoxypropylene block copolymer; the corrosion inhibitor is one or more of hexadecylamine, sodium molybdate, sodium tungstate, sodium vanadate and mercapto benzothiazole.
Meanwhile, the embodiment also provides a preparation method for preparing the copper material chromium-free passivator, which comprises the following steps: s1, adding a part of water into the triazole derivative at room temperature, and uniformly stirring, wherein the water is used in an amount of 50-80 wt% of the total amount of water in the step; s2, adding an organic solvent into the mixture obtained in the step S1, and uniformly stirring; s3, adding a complexing agent into the mixture obtained in the step S2, and uniformly stirring; s4, adding a pH value regulator into the mixture obtained in the step S3, and uniformly stirring; s5, adding a wetting agent into the mixture obtained in the step S4, and uniformly stirring; s6, adding a corrosion inhibitor into the mixture obtained in the step S5, and uniformly stirring; and S7, adding the rest water into the mixture obtained in the step S6, and uniformly stirring to obtain the copper material chromium-free passivation agent.
In addition, the embodiment also provides a use method of the chromium-free copper passivator, which comprises the following steps: step one, alkaline phosphorus-free ultrasonic degreasing, wherein the treatment temperature is 40-50 ℃, the treatment time is 5-10min, and the alkalinity is 8-15; step two, two-pass overflow water washing with the PH value of 6-7; step three, activating treatment, wherein the treatment temperature is above the freezing point, and the treatment time is 0.5-1 min; step four, performing; two-pass overflow water washing is carried out, and the PH value is 6-7; fifthly, performing surface treatment on the metal by using a copper material chromium-free passivation agent, wherein the process parameters are that the pH value is neutral and the treatment is performed above the freezing point, the treatment time is 0.5-1min, and the treatment mode is soaking; step six, two-pass overflow water washing is carried out, and the pH value is 6-7; step seven: and (5) drying.
Referring to the following table one, specifically, the copper material chromium-free passivator in the embodiment comprises the following components in percentage by weight:
| triazole derivative | 5％ |
| Organic solvent | 8％ |
| EDTA-2Na | 0.2％ |
| Sodium carbonate | 2.0％ |
| Wetting agent | 0.2％ |
| Corrosion inhibitor | 0.5％ |
| Water (W) | Balance of |
Watch 1
Wherein the triazole derivative is a mixture of p-ethyl triazole terphenyl, 1-hydroxy benzotriazole and benzotriazole, and the mass ratio of the three is 1: 1: 2. the organic solvent is a mixture of methanol and N, N-dimethylformamide, and the mass ratio of the methanol to the N, N-dimethylformamide is 1: 1. the wetting agent is a mixture of polyoxyethylene alkylphenol ether and the Dow TRITON X-405, and the mass ratio of the polyoxyethylene alkylphenol ether to the Dow TRITON X-405 is 1: 1. The corrosion inhibitor is a mixture of hexadecylamine and sodium molybdate, and the mass ratio of the hexadecylamine to the sodium molybdate is 2: 1.
example two
The second embodiment is different from the first embodiment only in that the copper material chromium-free passivator is composed of different components in percentage by mass, as shown in the following table two, the copper material chromium-free passivator in the second embodiment is composed of the following components in percentage by mass:
| triazole derivative | 8％ |
| Organic solvent | 10％ |
| Citric acid | 0.4％ |
| pH regulator | 3.0％ |
| Wetting agent | 0.2％ |
| Corrosion inhibitor | 0.6％ |
| Water (W) | Balance of |
Watch two
Wherein the triazole derivative is a mixture of p-methyl phenyl triazole, 5-carboxyl benzotriazole and 1-hydroxy benzotriazole, and the mass ratio of the three is 2: 1: 2. the organic solvent is a mixture of ethanol and dimethyl sulfoxide, and the mass ratio of the ethanol to the dimethyl sulfoxide is 2: 1. the pH regulator is sodium hydroxide. The wetting agent is a mixture of the Dow TRITON X-405 and polyoxyethylene fatty alcohol ether, and the mass ratio of the two is 3: 2. The corrosion inhibitor is a mixture of sodium tungstate, sodium vanadate and mercapto benzothiazole, and the mass ratio of the sodium tungstate to the sodium vanadate to the mercapto benzothiazole is 1: 1: 2.
EXAMPLE III
The third embodiment is different from the first embodiment only in that the copper material chromium-free passivating agent is composed of different components in percentage by mass, as shown in the third table below, the copper material chromium-free passivating agent in the second embodiment is composed of the following components in percentage by mass:
| triazole derivative | 9％ |
| Organic solvent | 12％ |
| Malonic acid | 0.5％ |
| pH regulator | 2.5％ |
| Wetting agent | 0.3％ |
| Corrosion inhibitor | 0.8％ |
| Water (W) | Balance of |
Watch III
Wherein the triazole derivative is a mixture of p-1-hydroxy benzotriazole and chloromethyl benzotriazole, and the mass ratio of the p-1-hydroxy benzotriazole to chloromethyl benzotriazole is 2: 1. the organic solvent is a mixture of ethanol and isopropanol, and the mass ratio of the ethanol to the isopropanol is 3: 1. the pH regulator is potassium hydroxide. The wetting agent is a mixture of polyoxyethylene fatty alcohol ether and polyoxyethylene polyoxypropylene block copolymer, and the mass ratio of the polyoxyethylene fatty alcohol ether to the polyoxyethylene polyoxypropylene block copolymer is 2: 3. The corrosion inhibitor is a mixture of sodium vanadate and mercapto benzothiazole, and the mass ratio of the sodium vanadate to the mercapto benzothiazole is 1: 2.
example four
The fourth embodiment is different from the first embodiment only in that the copper material chromium-free passivator is composed of different components in percentage by mass, as shown in the fourth table below, the copper material chromium-free passivator in the second embodiment is composed of the following components in percentage by mass:
| triazole derivative | 10％ |
| Organic solvent | 15％ |
| Sodium gluconate | 0.4％ |
| pH regulator | 3.5％ |
| Wetting agent | 0.5％ |
| Corrosion inhibitor | 1.0％ |
| Water (W) | Balance of |
Watch four
Wherein the triazole derivative is a mixture of p-benzotriazole and 1-hydroxybenzotriazole, and the mass ratio of the p-benzotriazole to the 1-hydroxybenzotriazole is 3: 1. the organic solvent is a mixture of ethanol and glycerol, and the mass ratio of the ethanol to the glycerol is 4: 1. the pH regulator is ammonia water. The wetting agent is polyoxyethylene polyoxypropylene block copolymer. The corrosion inhibitor is mercapto benzothiazole.
The following three tests were carried out by using the copper material chromium-free passivator consisting of the above four different mass percentages, and the results were obtained as follows:
1. titrating the surface of a copper sample by using nitric acid (specific gravity of 1.42) in a volume ratio of (1: 1), wherein the titration time is more than 60s and is far better than 5s required by HB 5064-1977;
2. and (4) neutral salt spray test (NSS), wherein after the test for 96 hours by a naked film, the surface color of the sample is almost unchanged, and no rust is generated. (GB/T10125-1997);
3. the sample is naturally stored for more than half a year without changing color, and the sample is packaged and stored for more than one year without changing color;
4. through the three tests, the copper material passivated by the copper material chromium-free passivator has excellent corrosion resistance, and meets the requirement of high requirement on corrosion resistance of the existing copper material.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (9)
1. The copper material chromium-free passivator is characterized in that: the copper material chromium-free passivator is prepared by mixing the following raw materials in percentage by mass: 1-10% of triazole derivative, 2-15% of organic solvent, 0.1-0.5% of complexing agent, 1-5% of pH value regulator, 0.1-1% of wetting agent, 0.5-2% of corrosion inhibitor and the balance of water.
2. The copper material chromium-free passivator according to claim 1, characterized in that: the triazole derivative is one or more of p-ethyl triazole terphenyl, methyl phenyl triazole, 5-carboxyl benzotriazole, phenyl triazole, 1-hydroxy benzotriazole and chloromethyl benzotriazole.
3. The copper material chromium-free passivator according to claim 1 or 2, characterized in that: the organic solvent is one or more of methanol, N-dimethylformamide, ethanol, dimethyl sulfoxide, isopropanol and glycerol.
4. The copper material chromium-free passivator according to claim 3, characterized in that: the complexing agent is one or more of EDTA-2Na, citric acid, malonic acid and sodium gluconate.
5. The copper material chromium-free passivator according to claim 1, characterized in that: the pH value regulator is one or more of sodium carbonate, sodium hydroxide, potassium hydroxide and ammonia water.
6. The copper material chromium-free passivator according to claim 1, characterized in that: the wetting agent is one or more of polyoxyethylene alkylphenol ether, Dow TRITON X-405, polyoxyethylene fatty alcohol ether and polyoxyethylene polyoxypropylene segmented copolymer.
7. The copper material chromium-free passivator according to claim 1, characterized in that: the corrosion inhibitor is one or more of hexadecylamine, sodium molybdate, sodium tungstate, sodium vanadate and mercapto benzothiazole.
8. A method for preparing a chromium-free passivator of copper material according to any of the preceding claims 1 to 7, characterized in that it comprises the following steps:
s1, adding a part of water into the triazole derivative at room temperature, and uniformly stirring, wherein the water is used in an amount of 50-80 wt% of the total amount of water in the step;
s2, adding an organic solvent into the mixture obtained in the step S1, and uniformly stirring;
s3, adding a complexing agent into the mixture obtained in the step S2, and uniformly stirring;
s4, adding a pH value regulator into the mixture obtained in the step S3, and uniformly stirring;
s5, adding a wetting agent into the mixture obtained in the step S4, and uniformly stirring;
s6, adding a corrosion inhibitor into the mixture obtained in the step S5, and uniformly stirring;
and S7, adding the rest water into the mixture obtained in the step S6, and uniformly stirring to obtain the copper material chromium-free passivator.
9. A method for using a chromium-free passivator for copper material according to any of the preceding claims 1 to 7, characterized in that the method comprises the following steps:
step one, alkaline phosphorus-free ultrasonic degreasing, wherein the treatment temperature is 40-50 ℃, the treatment time is 5-10min, and the alkalinity is 8-15;
step two, two-pass overflow water washing with the PH value of 6-7;
step three, activating treatment, wherein the treatment temperature is above the freezing point, and the treatment time is 0.5-1 min;
step four, performing; two-pass overflow water washing is carried out, and the PH value is 6-7;
fifthly, performing surface treatment on the metal by using a copper material chromium-free passivator, wherein the process parameters are that the pH value is neutral and the treatment is performed above the freezing point, the treatment time is 0.5-1min, and the treatment mode is soaking;
step six, two-pass overflow water washing is carried out, and the pH value is 6-7;
step seven: and (5) drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679837.6A CN112144049A (en) | 2019-07-26 | 2019-07-26 | Copper material chromium-free passivator and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679837.6A CN112144049A (en) | 2019-07-26 | 2019-07-26 | Copper material chromium-free passivator and preparation method and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112144049A true CN112144049A (en) | 2020-12-29 |
Family
ID=73891765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679837.6A Pending CN112144049A (en) | 2019-07-26 | 2019-07-26 | Copper material chromium-free passivator and preparation method and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112144049A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112831780A (en) * | 2021-01-04 | 2021-05-25 | 吴宪进 | Preparation method of phosphorus-free, fluorine-free and heavy metal-free phosphorus replacement agent |
| CN114836744A (en) * | 2022-04-28 | 2022-08-02 | 浙江大学 | Chromium-free passivation solution for copper foil and preparation method thereof |
| CN116288305A (en) * | 2022-12-29 | 2023-06-23 | 武汉奥克特种化学有限公司 | Chromium-free high-temperature anti-oxidation passivating agent for electrolytic copper foil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276386A (en) * | 2013-05-06 | 2013-09-04 | 大庆宝丰科技有限公司 | Chromium-free environment-friendly passivator for brass cartridge case of cartridge and preparation method |
| CN103789757A (en) * | 2014-01-26 | 2014-05-14 | 东莞市凯盟表面处理技术开发有限公司 | Copper chromate-free passivation agent and application method thereof |
| CN106148934A (en) * | 2016-08-27 | 2016-11-23 | 合肥普庆新材料科技有限公司 | A kind of copper material passivator and preparation, application |
| CN108265285A (en) * | 2018-03-20 | 2018-07-10 | 粟飞 | A kind of copper material neutral passivation agent |
| CN109468632A (en) * | 2018-08-30 | 2019-03-15 | 上海昕沐化学科技有限公司 | Environment-friendly type copper face passivator and preparation method thereof |
| CN109487254A (en) * | 2018-11-30 | 2019-03-19 | 佛山市海明威生态科技股份有限公司 | Copper alloy chrome-free tanning agent and preparation method thereof |
-
2019
- 2019-07-26 CN CN201910679837.6A patent/CN112144049A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276386A (en) * | 2013-05-06 | 2013-09-04 | 大庆宝丰科技有限公司 | Chromium-free environment-friendly passivator for brass cartridge case of cartridge and preparation method |
| CN103789757A (en) * | 2014-01-26 | 2014-05-14 | 东莞市凯盟表面处理技术开发有限公司 | Copper chromate-free passivation agent and application method thereof |
| CN106148934A (en) * | 2016-08-27 | 2016-11-23 | 合肥普庆新材料科技有限公司 | A kind of copper material passivator and preparation, application |
| CN108265285A (en) * | 2018-03-20 | 2018-07-10 | 粟飞 | A kind of copper material neutral passivation agent |
| CN109468632A (en) * | 2018-08-30 | 2019-03-15 | 上海昕沐化学科技有限公司 | Environment-friendly type copper face passivator and preparation method thereof |
| CN109487254A (en) * | 2018-11-30 | 2019-03-19 | 佛山市海明威生态科技股份有限公司 | Copper alloy chrome-free tanning agent and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112831780A (en) * | 2021-01-04 | 2021-05-25 | 吴宪进 | Preparation method of phosphorus-free, fluorine-free and heavy metal-free phosphorus replacement agent |
| CN114836744A (en) * | 2022-04-28 | 2022-08-02 | 浙江大学 | Chromium-free passivation solution for copper foil and preparation method thereof |
| CN116288305A (en) * | 2022-12-29 | 2023-06-23 | 武汉奥克特种化学有限公司 | Chromium-free high-temperature anti-oxidation passivating agent for electrolytic copper foil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112144049A (en) | Copper material chromium-free passivator and preparation method and use method thereof | |
| CN102002698B (en) | Anti-rust treating agent for nickel-plated battery steel shell and using method thereof | |
| KR101786358B1 (en) | Solution composition for surface treating of steel sheet, zinc-based metal plated steel sheet using the same, and manufacturing method of the same | |
| US6521029B1 (en) | Pretreatment for aluminum and aluminum alloys | |
| CN109023335B (en) | Film forming liquid for metal material surface conversion film and its use | |
| CN101135050B (en) | Metasilicate cleaning inactivating process | |
| CN111575693B (en) | Chromium-free pre-passivation solution for hot-dip galvanized steel pipe | |
| CN111575690A (en) | Hot-dip galvanized aluminum-magnesium steel plate surface chromium-free passivation solution and preparation method of hot-dip galvanized aluminum-magnesium chromium-free passivation plate | |
| CN113789507A (en) | Zinc-calcium-manganese phosphating solution and preparation method thereof | |
| CN112725785A (en) | Blue passivator for steel parts and preparation method thereof | |
| CN112030151A (en) | No-clean chromium-free conversion agent for continuous coil unit and preparation method thereof | |
| CN113667967A (en) | Post-treatment method for hot dip galvanizing of steel | |
| CN110923687A (en) | Chromium-free passivator and preparation method thereof | |
| US20220411934A1 (en) | Passivation composition and method for depositing a chromium-comprising passivation layer on a zinc or zinc-nickel coated substrate | |
| CN114075663A (en) | Water-based treating agent for carbon steel surface, good corrosion-resistant carbon steel and preparation method thereof | |
| CN112301340B (en) | Stainless steel passivation solution and method for improving corrosion resistance of stainless steel wire drawing floor drain | |
| CN112011791A (en) | Formation agent based on phosphoric acid without surface conditioning process and sodium sulfite promoter and preparation method thereof | |
| CN102560307A (en) | Production process of multiple aluminum zinc alloy hot-dipped on surface of carbon steel | |
| CN103924228A (en) | Metal material with excellent corrosion resistance | |
| CN109440094A (en) | A kind of chrome-free tanning agent and the application on iron tower construction member is zinc-plated | |
| CN103205742A (en) | Chromate-free passivator for zinc coating | |
| EP4177317B1 (en) | Use of a corrosion inhibition composition and method for inhibition of corrosion of metals or metal alloys | |
| CN104342691A (en) | Zinc-coated steel plate surface passivation technology | |
| CN117106513B (en) | Water-based antirust agent and preparation method and application thereof | |
| CN103305824A (en) | Hot-galvanizing chromate-free passivator and production technology thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201229 |
|
| RJ01 | Rejection of invention patent application after publication |