CN103741129A - Zinc coating trivalent chromium blue white passivating agent with high corrosion resistance - Google Patents
Zinc coating trivalent chromium blue white passivating agent with high corrosion resistance Download PDFInfo
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Abstract
The invention discloses a zinc coating trivalent chromium blue white passivating agent with high corrosion resistance and a preparation method thereof. The passivating agent contains 0.38-0.78 mol/L of chromium compound containing trivalent chromium ions, 0.20-0.35 mol/L of cobalt compound containing cobalt ions, 0.33-0.82 mol/L of sodium nitrate or nickel nitrate containing nitrate ions, 0.15-0.55 mol/L of fluoride containing fluorions, 0.15-0.55 mol/L of inorganic acid, 0.01-0.21 mol/L of sulfate, 0.038-0.076 mol/L of sodium hydroxide and the balance of pure water. The passivating agent disclosed by the invention contains no organic acid and does not generate hexavalent chromium ion pollution, the generated trivalent chromium passivating film layer is thicker, has self-healing or self-repairing capability in the air and generates no white rust in a 5% neutral salt spray test for 120 hours, thereby having better corrosion resistance than a hexavalent chromium passivating film.
Description
Technical field
The present invention relates to the high anti-corrosion blue-white deactivator of a kind of zinc coating trivalent chromium, belong to field of metal surface treatment technology.
Background technology
In the last hundred years, people use Cr always
6+the metals such as zinc are carried out to chromating processing, although improved the solidity to corrosion of galvanizing surface, Cr
6+very large to the injury of human body, nor be beneficial to environmental protection, the disposable pearl opal passivation technology of low chromium was introduced into afterwards, in passivating solution, chromic content is reduced to 2-5g/L, and in last hot water is scalded, add the chromium of 0.2-0.5g/L, but unavoidable chromic existence still kept away, and the salt fog time is shorter, solidity to corrosion is also not ideal enough, at corner location, easily occurs yellow.Along with the raising of environmental protection requirement, the corrosion proof requirement of steel piece also improves thereupon, with the research and development of trivalent chromium passivation, has obtained significant progress.In order to improve technique, people start to select to replace sexavalent chrome with trivalent chromium, and chromic toxicity is less, is one of chromic percentage, take trivalent chromium as ion skeleton film forming in chromic passivation layer, and trivalent chromium is easier to process than sexavalent chrome.S-generation trivalent chromium passivator has identical feature, and they all adopt organic complexing agent and add other metals, have greatly improved solidity to corrosion, thereby obtain the passive film of different colours, and as blue, colored, black, and operational condition requires relatively low.In s-generation passivating solution, directly add hole sealing agent, for example nanometer Si oxide compound, acidic silicasol, be filled in them in the skeleton of passive film, and the solidity to corrosion of rete is improved greatly.
Summary of the invention
Zinc-plated is a kind of good decorative and protective rete with trivalent chromium blue-white passive film, the present invention successfully replaces sexavalent chrome with trivalent chromium, make the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium, improved the weak point of former technique, simplified production technique, reduced the cost of passivating solution, and more environmental protection.Find after tested, this passivator stable performance, can improve the solidity to corrosion of passive film, through GB/T 10125-2012 artificial atmosphere corrosion test, measures, and plating piece produces the white rust time and surpasses 120h.
The high anti-corrosion blue-white deactivator of zinc coating trivalent chromium that the present invention produces, solved the hexavalent chromium polluted problem producing in production process, what is more important makes galvanizing production also not containing sexavalent chrome, product is placed after two months to chromic stripping quantity less than 0.03 μ g/cm
2.For this reason, the present invention also aims to provide the manufacture method of the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium, both solve the chromic pollution problem of production process and product itself, also in wider operating restraint, obtained the better galvanizing production of corrosion resisting property.
The high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention is not containing organic acid complexing agent, can effectively avoid containing in traditional technology the bad problem that organic acid complexing agent produces, and passivating solution stability is better, the trivalent chromium conversion film film forming speed generating is fast, rete is thicker, there is gloss, and in air, have stronger self-healing or self-reparing capability.When rete is by scratch, in air, trivalent chromium can react with zinc layer, independently forms new repair membrane.
Object of the present invention is achieved by the following technical programs.
The high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention, consists of: containing trivalent chromic ion
The chromium cpd of 0.38-0.78mo1/L, cobalt compound containing cobalt ion 0.20-0.35mol/L, SODIUMNITRATE or nickelous nitrate containing nitrate ion 0.33-0.82mo1/L, the fluorochemical of fluoride ion 0.15-0.55mol/L, mineral acid 0.15-0.55mol/L, vitriol 0.01-0.21mo1/L, sodium hydroxide 0.038-0.076mol/L, all the other are pure water.
Described chromium cpd is one or more in chromium nitrate, chromium chloride, chromium sulphate, potassium chromium sulfate.
Described cobalt compound is one or more in Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES, cobalt chloride or rose vitriol.
Described fluorochemical is one or more of ammonium bifluoride, Neutral ammonium fluoride or Sodium Fluoride.
Described vitriol is one or more in sodium sulfate, single nickel salt, magnesium sulfate or nickel ammonium sulfate.
Described mineral acid is one or both in nitric acid or sulfuric acid.
The present invention most preferably scheme is composed as follows: trivalent chromic ion concentration is 0.58mol/L, concentration of cobalt ions is 0.24mol/L, in SODIUMNITRATE or nickelous nitrate, contained nitrate ion concentration is 0.53mol/L, fluorinion concentration is 0.35mol/L, sulfate ion concentration is 0.18mol/L, and hydroxide ion concentration is 0.075mol/L.
Passivator of the present invention contains cobalt salt, if not containing cobalt salt, can obtain white passivation layer, but the tolerance of neutral salt spray test is poor, tolerance time is shorter, and the azure degree of color and luster is aobvious inferior.
Chromic salt described in passivator of the present invention is preferably chromium chloride 0.30mol/L, chromium nitrate 0.28mol/L.Described nitrate is preferably SODIUMNITRATE 0.53mol/L.Described fluorochemical is preferably ammonium bifluoride 0.175mol/L.Described cobalt salt is preferably cobalt chloride 0.24mol/L.
For convenient, manufacture, transportation and storage, above-mentioned passivator is made to concentrated solution type, its preparation method comprises the following steps: chromic salt is dissolved in 400m1 pure water, be heated to 80 ℃, stirring and dissolving, then in 25min, slowly add NaOH raw material, the boiling of placement solution, add successively vitriol, fluorochemical and cobalt salt, after dissolving completely, raw material adds nitric acid, be heated to 70-100 ℃, fully reaction is 2.5 hours, stop heating and be chilled to 25 ℃, add nitrate, stir 10min, add pure water to 1000mL constant volume, obtain high corrosion resistant trivalent chromium blue-white deactivator.Through GB/T 10125-2012 artificial atmosphere corrosion test, measure, plating piece can bear 120h in 5% neutral brine spraying, does not produce white rust.
The passivation flow process of galvanized workpiece: oil removing-washing-rust cleaning-washing-weak etch-washing-bright dipping (rare nitric acid, bright dipping time 10-20s)-washing-passivation-washing-hot water wash (or cold wash)-warm air drying-cooling-packing.The working conditions of passivating solution is as follows: the Cr of passivation tank liquor
3+ionic concn is 0.38-0.78mol/L, and pH is 1.8-2.2, and passivation temperature is 20-30 ℃, and passivation time is 10-40s.
The present invention has following beneficial effect: the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention is not containing organic acid complexing agent, can effectively avoid containing in traditional technology the bad problem that organic acid complexing agent produces, and passivating solution stability is better, the trivalent chromium conversion film film forming speed generating is fast, rete is thicker, there is gloss, and in air, have stronger self-healing or self-reparing capability.When rete is by scratch, in air, trivalent chromium can react with zinc layer, independently forms new repair membrane.
The high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention is not containing sexavalent chrome; and can not produce in process of production hexavalent chromium polluted; what is more important product itself does not have sexavalent chrome yet; during use, can not produce chromyl waste water, human health and guarantor's environment are protected to good promoter action.
Passivator of the present invention makes excellent product quality, product appearance is bright silvery white with azure tone, and corrosion resistance nature is better than sexavalent chrome product, through GB/T 10125-2012 artificial atmosphere corrosion test, measures, plating piece can bear 120h in 5% neutral brine spraying, does not produce white rust.
In passivating process, the cobalt ion in solution deposits in passive film, has significantly improved the corrosion resistance nature of passive film.
Embodiment
Embodiment is shown below and comparative example illustrates the present invention.
Embodiment 1.
Under continuously stirring, by the chromium nitrate of 0.28mol (nine water), the chromium chloride of 0.30mol is dissolved in 400m1 pure water, be heated to 80 ℃, stirring and dissolving, then in 25min, slowly add 0.075mol NaOH raw material, the boiling of placement solution, the sodium sulfate that adds successively 0.11mol, the magnesium sulfate of 0.07mol, the ammonium bifluoride of 0.175mol and the cobalt chloride of 0.24mol (six water), the nitric acid that adds 0.35mol after raw material dissolves completely, be heated to 70-100 ℃, fully reaction is 2.5 hours, stop heating and be chilled to 25 ℃, add 0.53mol SODIUMNITRATE, stir 10min, add pure water to 1000mL constant volume, obtain high corrosion resistant trivalent chromium blue-white deactivator.
During use, adopting nitric acid to regulate passivator solution pH is 2.0, at 20-30 ℃, galvanized workpiece (more than galvanized layer thickness 6 μ m) is carried out to passivation, passivation time 10-40 second, after passivation completes, with 60-70 ℃ of hot water sealing 30 seconds, at the temperature of 70-80 ℃, dry, must be with the part to sky blue passive film.
Use the plating piece of the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention to detect through the IEC62321 of SGS method, workpiece was placed after 2 months, Cr
60content does not still exceed Japanese monitoring standard 2ppm, chromic stripping quantity less than 0.03 μ g/cm
2.
According to the standard test of GB/T 10125-2012 artificial atmosphere corrosion test, in the situation that skin does not add sealing, plating piece can bear 120 hours in 5%NaCl neutral salt spray test, does not produce white rust.
The outward appearance of passivation layer is sky blue, luminance brightness is high, and in air, has good self-healing or self-reparing capability.
Embodiment 2.
Under continuously stirring, by the chromium nitrate of 0.35mol (nine water), the chromium chloride of 0.38mol is dissolved in 400m1 pure water, be heated to 80 ℃, stirring and dissolving, then in 25min, slowly add 0.075mol NaOH raw material, the boiling of placement solution, the sodium sulfate that adds successively 0.04mol, the nickel ammonium sulfate of 0.05mol, the ammonium bifluoride of 0.175mol and containing the cobalt chloride (six water) of cobalt 0.21mol, after dissolving completely, raw material adds the nitric acid of 0.29 mol, be heated to 70-100 ℃, fully reaction is 2.5 hours, stop heating and be chilled to 25 ℃, add the SODIUMNITRATE of 0.53 mol, stir 10min, add pure water to 1000mL constant volume, obtain high corrosion resistant trivalent chromium blue-white deactivator.
During use, adopting nitric acid to regulate passivator solution pH is 2.2, at 20-30 ℃, galvanized workpiece (more than galvanized layer thickness 6 μ m) is carried out to passivation, passivation time 10-40 second, after passivation completes, with 60-70 ℃ of hot water sealing 30 seconds, at the temperature of 70-80 ℃, dry, obtain the part with sky blue passive film.
Use the plating piece of the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium of the present invention to detect through the IEC62321 of SGS method, workpiece was placed after 2 months, Cr
60content does not still exceed Japanese monitoring standard 2ppm, chromic stripping quantity less than 0.03 μ g/cm
2.
According to the standard test of GB/T 10125-2012 artificial atmosphere corrosion test, in the situation that skin does not add sealing, plating piece can bear 120 hours in 5%NaCl neutral salt spray test, does not produce white rust.
The appearance luster of passivation layer is consistent, and bright property is good, and azure degree is better, and in air, has good self-healing and self-reparing capability, and scrap rate is low.The present invention greatly reduces the probability of product jaundice, and the corrosion resistance nature of product is better, and after passivation oven dry, product appearance and salt-fog resistant test situation are unaffected, and surperficial non-hexavalent chromium exists.
Feature of the present invention is in passivator not containing organic acid complexing agent.In comparative example 1 below, will in passivator, add 0.038mol gluconic acid, 0.039mol tartrate, 0.017mol citric acid, all the other compositions and compound method are identical with embodiment 1, test experience result, and compare with embodiment 1.In comparative example 2, will in passivator, add 0.038mol succinic acid, 0.039mol oxysuccinic acid, 0.38mol oxalic acid, all the other compositions and compound method are identical with embodiment 2, test experience result, and compare with embodiment 2.
Comparative example 1.
Under continuously stirring, by the chromium nitrate of 0.28mol (nine water), the chromium chloride of 0.30mol is dissolved in 400m1 pure water, be heated to 80 ℃, stirring and dissolving, then in 25min, slowly add 0.075mol NaOH raw material, the boiling of placement solution, the sodium sulfate that adds successively 0.11mol, the magnesium sulfate of 0.07mol, 0.038mol gluconic acid, 0.039mol tartrate, 0.017mol citric acid, the ammonium bifluoride of 0.175mol, the cobalt chloride of 0.24mol (six water), the nitric acid that adds 0.35mol after raw material dissolves completely, be heated to 70-100 ℃, fully reaction is 2.5 hours, stop heating and be chilled to 25 ℃, add the SODIUMNITRATE of 0.53 mol, stir 10min, add pure water to 1000mL constant volume, obtain trivalent chromium blue-white deactivator.
During use, adopting nitric acid to regulate passivator solution pH is 2.0, at 20-30 ℃, galvanized workpiece is carried out to passivation, passivation time 10-40 second, after passivation completes, with 60-70 ℃ of hot water sealing 30 seconds, at the temperature of 70-80 ℃, dries.
Plating piece in comparative example 1 is detected through the IEC62321 of SGS method, and workpiece was placed after 2 months, Cr
60content has exceeded Japanese monitoring standard 2ppm, and chromic stripping quantity is 3.6 μ g/cm
2, obviously than the sexavalent chrome stripping quantity less than 0.03 μ g/cm in embodiment 1
2exceed a lot, so the present invention does not have obvious promoter action containing organic acid passivator to reducing chromic harm.
By the plating piece in comparative example 1 according to the standard test of GB/T 10125-2012 artificial atmosphere corrosion test, in the situation that skin does not add sealing, plating piece can bear 96 hours in 5%NaCl neutral salt spray test, obviously short than the product salt-fog resistant time in embodiment 1, so the present invention does not have better corrosion resistance nature containing the prepared product of passivator of organic acid complexing agent.
The outward appearance of the passivation layer in comparative example 1 is mazarine, and luminance brightness is lower, and does not have self-healing or self-reparing capability in air, and the outward appearance of the passivation layer in embodiment 1 is sky blue, and luminance brightness is high, has good self-healing or self-reparing capability in air.
Comparative example 2.
Under continuously stirring, by the chromium nitrate of 0.35mol (nine water), the chromium chloride of 0.38mol is dissolved in 400m1 pure water, be heated to 80 ℃, stirring and dissolving, then in 25min, slowly add 0.075mol NaOH raw material, the boiling of placement solution, the sodium sulfate that adds successively 0.04mol, the nickel ammonium sulfate of 0.05mol, 0.038mol succinic acid, 0.039mol oxysuccinic acid, 0.38mol oxalic acid, the ammonium bifluoride of 0.175mol and containing the cobalt chloride (six water) of cobalt 0.21mol, after dissolving completely, raw material adds the nitric acid of 0.29 mol, be heated to 70-100 ℃, fully reaction is 2.5 hours, stop heating and be chilled to 25 ℃, add the SODIUMNITRATE of 0.53 mol, stir 10min, add pure water to 1000mL constant volume, obtain trivalent chromium blue-white deactivator.
During use, adopting nitric acid to regulate passivator solution pH is 2.2, at 20-30 ℃, galvanized workpiece is carried out to passivation, passivation time 10-40 second, after passivation completes, with 60-70 ℃ of hot water sealing 30 seconds, at the temperature of 70-80 ℃, dries.
Plating piece in comparative example 2 is detected through the IEC62321 of SGS method, and workpiece was placed after 2 months, Cr
60content has exceeded Japanese monitoring standard 2ppm, and chromic stripping quantity is 4.2 μ g/cm
2, obviously than the sexavalent chrome stripping quantity less than 0.03 μ g/cm in embodiment 2
2exceed a lot, so the present invention does not have obvious promoter action containing organic acid passivator to reducing chromic harm.
By the plating piece in comparative example 2 according to the standard test of GB/T 10125-2012 artificial atmosphere corrosion test, in the situation that skin does not add sealing, plating piece can bear 72 hours in 5%NaCl neutral salt spray test, obviously short than the product salt-fog resistant time in embodiment 2, therefore the present invention, not containing the prepared product of passivator of organic acid complexing agent, has better corrosion resistance nature.
The outward appearance of the passivation layer in comparative example 2 is mazarine, and luminance brightness is lower, and does not have self-healing or self-reparing capability in air, and the outward appearance of the passivation layer in embodiment 2 is sky blue, and luminance brightness is high, has good self-healing or self-reparing capability in air.
Claims (7)
1. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium, is characterized in that, consists of: containing trivalent chromic ion
The chromium cpd of 0.38-0.78mo1/L, cobalt compound containing cobalt ion 0.20-0.35mol/L, SODIUMNITRATE or nickelous nitrate containing nitrate ion 0.33-0.82mo1/L, the fluorochemical of fluoride ion 0.15-0.55mol/L, mineral acid 0.15-0.55mol/L, vitriol 0.01-0.21mo1/L, sodium hydroxide 0.038-0.076mol/L, all the other are pure water.
2. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, is characterized in that, described in
Chromium cpd is one or more in chromium nitrate, chromium chloride, chromium sulphate, potassium chromium sulfate.
3. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, is characterized in that, described cobalt compound is one or more in Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES, cobalt chloride or rose vitriol.
4. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, is characterized in that, described fluorochemical is one or more of ammonium bifluoride, Neutral ammonium fluoride or Sodium Fluoride.
5. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, is characterized in that, described vitriol is one or more in sodium sulfate, single nickel salt, magnesium sulfate or nickel ammonium sulfate.
6. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, is characterized in that, described mineral acid is one or both in nitric acid or sulfuric acid.
7. the high anti-corrosion blue-white deactivator of zinc coating trivalent chromium according to claim 1, it is characterized in that, trivalent chromic ion concentration is 0.58mol/L, concentration of cobalt ions is 0.24mol/L, in nickelous nitrate or SODIUMNITRATE, contained nitrate ion concentration is 0.53mol/L, fluorinion concentration is 0.35mol/L, and sulfate ion concentration is 0.18mol/L, and hydroxide ion concentration is 0.075mol/L.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586583A (en) * | 2016-03-11 | 2016-05-18 | 三峡大学 | Galvanized steel sheet trivalent chromium passivator concentrated solution and preparation method |
| CN106011833A (en) * | 2016-07-08 | 2016-10-12 | 哈尔滨飞机工业集团有限责任公司 | Solution for passivated nickel plated metal |
| CN108531899A (en) * | 2018-05-09 | 2018-09-14 | 昆山秀博表面处理材料有限公司 | High corrosion-resistant admiro surface trivalent chromium deactivating liquid and preparation method thereof |
| CN111321398A (en) * | 2020-03-25 | 2020-06-23 | 江门市和美贸易有限公司 | Trivalent chromium passivator and preparation method thereof |
| CN111441043A (en) * | 2020-06-02 | 2020-07-24 | 广东比格莱科技有限公司 | Zinc-plated trivalent chromium color passivator and preparation method thereof |
| CN111485265A (en) * | 2020-04-20 | 2020-08-04 | 常州新纪元材料科技有限公司 | Composition of high corrosion-resistant blue zinc-nickel alloy passivator |
| CN113445036A (en) * | 2021-07-20 | 2021-09-28 | 科文特亚环保电镀技术（江苏）有限公司 | Zinc-nickel alloy blue passivator and preparation process thereof |
| JP7399080B2 (en) | 2017-05-12 | 2023-12-15 | ケメオン サーフェス テクノロジー， エルエルシー | pH stable trivalent chromium coating liquid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO113063B1 (en) * | 1997-03-24 | 1998-03-30 | Inst Cercetare Si Proiectare T | Low-pollution solution for colourless-bluish passivation of electrochemical zinc and zinc alloy deposits |
| DE20121187U1 (en) * | 2001-12-20 | 2002-06-13 | Walter Hillebrand Gmbh & Co | Schwarzpassivierungsgemisch |
| CN1594651A (en) * | 2004-06-22 | 2005-03-16 | 广州市集胜化工有限公司 | Trivalent chromium pearl opal passivator for galvanizing and manufacturing method thereof |
| US7029541B2 (en) * | 2002-01-24 | 2006-04-18 | Pavco, Inc. | Trivalent chromate conversion coating |
| CN101158038A (en) * | 2007-10-11 | 2008-04-09 | 上海交通大学 | High corrosion resistant trivalent chromium blue-white deactivator and preparation method thereof |
| CN102041497A (en) * | 2009-10-13 | 2011-05-04 | 北京中科三环高技术股份有限公司 | Trivalent-chromium blue-white passivator for zinc-plated permanent magnetic material and passivation method thereof |
| CN102634783A (en) * | 2012-05-04 | 2012-08-15 | 山东建筑大学 | Zinc-plated trivalent chromium blue-white passivator |
-
2014
- 2014-01-22 CN CN201410029347.9A patent/CN103741129B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO113063B1 (en) * | 1997-03-24 | 1998-03-30 | Inst Cercetare Si Proiectare T | Low-pollution solution for colourless-bluish passivation of electrochemical zinc and zinc alloy deposits |
| DE20121187U1 (en) * | 2001-12-20 | 2002-06-13 | Walter Hillebrand Gmbh & Co | Schwarzpassivierungsgemisch |
| US7029541B2 (en) * | 2002-01-24 | 2006-04-18 | Pavco, Inc. | Trivalent chromate conversion coating |
| CN1594651A (en) * | 2004-06-22 | 2005-03-16 | 广州市集胜化工有限公司 | Trivalent chromium pearl opal passivator for galvanizing and manufacturing method thereof |
| CN101158038A (en) * | 2007-10-11 | 2008-04-09 | 上海交通大学 | High corrosion resistant trivalent chromium blue-white deactivator and preparation method thereof |
| CN102041497A (en) * | 2009-10-13 | 2011-05-04 | 北京中科三环高技术股份有限公司 | Trivalent-chromium blue-white passivator for zinc-plated permanent magnetic material and passivation method thereof |
| CN102634783A (en) * | 2012-05-04 | 2012-08-15 | 山东建筑大学 | Zinc-plated trivalent chromium blue-white passivator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586583A (en) * | 2016-03-11 | 2016-05-18 | 三峡大学 | Galvanized steel sheet trivalent chromium passivator concentrated solution and preparation method |
| CN106011833A (en) * | 2016-07-08 | 2016-10-12 | 哈尔滨飞机工业集团有限责任公司 | Solution for passivated nickel plated metal |
| JP7399080B2 (en) | 2017-05-12 | 2023-12-15 | ケメオン サーフェス テクノロジー， エルエルシー | pH stable trivalent chromium coating liquid |
| CN108531899A (en) * | 2018-05-09 | 2018-09-14 | 昆山秀博表面处理材料有限公司 | High corrosion-resistant admiro surface trivalent chromium deactivating liquid and preparation method thereof |
| CN111321398A (en) * | 2020-03-25 | 2020-06-23 | 江门市和美贸易有限公司 | Trivalent chromium passivator and preparation method thereof |
| CN111485265A (en) * | 2020-04-20 | 2020-08-04 | 常州新纪元材料科技有限公司 | Composition of high corrosion-resistant blue zinc-nickel alloy passivator |
| CN111441043A (en) * | 2020-06-02 | 2020-07-24 | 广东比格莱科技有限公司 | Zinc-plated trivalent chromium color passivator and preparation method thereof |
| CN113445036A (en) * | 2021-07-20 | 2021-09-28 | 科文特亚环保电镀技术（江苏）有限公司 | Zinc-nickel alloy blue passivator and preparation process thereof |
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