CN111676472B - Chromium-free passivator with high corrosion resistance for batch hot galvanizing - Google Patents
Chromium-free passivator with high corrosion resistance for batch hot galvanizing Download PDFInfo
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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
- C23C22/40—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
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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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
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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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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Abstract
The invention belongs to the technical field of metal surface treatment and corrosion protection, and particularly discloses a chromium-free passivator with high corrosion resistance for batch hot galvanizing. The chromium-free passivator is an aqueous solution consisting of the following components in percentage by weight: 20-200 g/L of organic phosphoric acid, 5-40 g/L of ammonium molybdate, 10-50 g/L of triethanolamine borate, 1-10 g/L of cerium nitrate, 100-500 g/L of composite silane hydrolysate and 50-200 g/L of acidic aluminum modified silica sol. The chromium-free passivator disclosed by the invention has excellent corrosion resistance and weather resistance.
Description
Technical Field
The invention belongs to the technical field of metal surface treatment and corrosion protection, and particularly relates to a chromium-free passivator with high corrosion resistance for batch hot galvanizing.
Background
In the past, hot galvanizing is a steel corrosion prevention means widely adopted at home and abroad at present, and can effectively improve the corrosion resistance of steel parts. The batch hot galvanizing product has low price and excellent processing and use performance. In order to improve the corrosion resistance of a zinc coating, hexavalent chromium salt is generally adopted to passivate the surface of the zinc coating in the traditional process. However, since Cr is contained in6+Has been banned from various countries for use due to high toxicity and carcinogenicity.
With the stricter environmental requirements, batch hot galvanizing enterprises, especially component hanging galvanizing enterprises, have extremely urgent needs for chromium-free passivation solution with excellent performance.
There are many environmental passivation technologies to replace hexavalent chromium systems, mainly including phosphate systems, silicate systems, molybdate systems, zirconium-titanium systems, silane systems, organic material systems, and organic-inorganic composite systems. From the research results and application practice of the last decade internationally, silane-modified organic-inorganic composite systems are the mainstream due to excellent corrosion resistance and good comprehensive performance.
Patent document CN104911573 discloses a preparation method of a batch hot galvanizing chromium-free passivator, which comprises multiple processes of ball milling, shearing emulsification, filtration and the like, and has complex preparation process and more required equipment. And do not characterize the weatherability of the resulting passivates.
Patent document CN104018148 discloses a batch hot galvanizing chromium-free passivator and a use method thereof, wherein a large amount of surfactant is used in the preparation process of the passivator, so that the passivator is easy to foam in the actual use process, a passive film on the surface of a workpiece is not uniform, and the appearance uniformity of the workpiece is influenced.
Patent document CN109252150 discloses a solvent-process environment-friendly passivation solution for batch hot galvanizing, and a preparation method and a use method thereof, wherein the environment-friendly passivation solution has good corrosion resistance, but the passivation agent needs to be dried after being sprayed or dip-coated on the surface of a workpiece, and needs to be air-cooled after being dried. The passivation solution is complex in use process and is not easy to realize in practical production and application.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention aims to provide a chromium-free passivator which does not contain toxic heavy metals, has simple preparation process, high corrosion resistance and excellent weather resistance and is suitable for the actual use process of batch hot galvanizing.
In order to realize the purpose, the invention adopts the following technical scheme:
a chromium-free passivator with high corrosion resistance for batch hot galvanizing is a mixed solution consisting of organic phosphoric acid, ammonium molybdate, triethanolamine borate, cerium nitrate, composite silane hydrolysate, acidic aluminum modified silica sol and water;
the mixed solution comprises the following components in percentage by weight:
20-200 g/L of organic phosphoric acid, 5-40 g/L of ammonium molybdate, 10-50 g/L of triethanolamine borate, 1-10 g/L of cerium nitrate, 100-500 g/L of composite silane hydrolysate and 50-200 g/L of acidic aluminum modified silica sol.
The organic phosphoric acid is one or more than two of phytic acid, amino trimethylene phosphonic acid, hydroxy ethylidene diphosphonic acid and diethylenetriamine pentamethylene phosphonic acid.
The composite silane hydrolysate is prepared by the following method: adding deionized water and glacial acetic acid into a reaction container, heating to 45-55 ℃, dropwise adding a mixed solution consisting of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, tetraethyl orthosilicate and n-propyl trimethoxy silane within 1 hour, continuing stirring at 45-55 ℃ for at least 1 hour after dropwise adding, and then cooling to room temperature to obtain a composite silane hydrolysate;
wherein, deionized water: glacial acetic acid: γ - (2, 3-glycidoxy) propyltrimethoxysilane: tetraethyl orthosilicate: the mass ratio of n-propyltrimethoxysilane is (180-) -220): 2:30:10:10, preferably: 200: 2:30:10: 10.
the acidic aluminum modified silica sol is prepared by the following method: adding sodium aluminate into deionized water to obtain a sodium aluminate aqueous solution, then adding the sodium aluminate aqueous solution into acidic silica sol, then placing the mixed solution of the sodium aluminate and the acidic silica sol into a reflux device, keeping the mixed solution in a continuous boiling state at 100 ℃ for at least 0.5h, cooling to obtain alkaline aluminum modified silica sol, and then passing the obtained alkaline aluminum modified silica sol through an ion exchange column filled with cation exchange resin to obtain the acidic aluminum modified silica sol;
wherein, sodium aluminate: deionized water: the mass ratio of the acidic silica sol is 1: (80-90): (200-300), preferably 1: 85: 250.
the preparation method of the chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following steps: firstly, dissolving organic phosphoric acid in water, uniformly dispersing, then respectively preparing aqueous solutions of ammonium molybdate and cerium nitrate, adding the aqueous solutions into the aqueous solution of the organic phosphoric acid, then sequentially adding triethanolamine borate, composite silane hydrolysate and acidic aluminum modified silica sol, adding water to adjust the total volume, adding all the raw materials, stirring and uniformly mixing to obtain the high-corrosion-resistance chromium-free passivator for batch hot galvanizing.
Compared with the prior art, the invention has the advantages and beneficial effects that:
according to the invention, a plurality of corrosion inhibitors are compounded and then matched with a silane material to obtain an organic and inorganic compounded chromium-free passivating agent, and the chromium-free passivating agent can perform a series of adsorption, polymerization and hybridization reactions on the surfaces of batch hot galvanizing to obtain a compact chromium-free passivating film, so that the corrosion resistance and the weather resistance of the batch hot galvanizing are improved.
Detailed Description
The applicant will now describe in detail the technical solutions and effects of the present invention with reference to specific embodiments. It should be understood that the following examples are only examples, and the present invention is not limited to these examples.
In the following examples, the complex silane hydrolysate was prepared by the following method: 200g of deionized water and 2g of glacial acetic acid are added into a reaction vessel, the temperature is raised to 50 ℃, a mixed solution consisting of 30g of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, 10g of tetraethyl orthosilicate and 10g of n-propyl trimethoxy silane is dropwise added for 40min, stirring is continued at 50 ℃ for 2h after the dropwise addition is finished, and then the mixed solution is cooled to room temperature, so that a composite silane hydrolysate is obtained, wherein the composite silane hydrolysate content is 20% (the amount of the composite silane hydrolysate in each embodiment is calculated according to the content and the composite silane hydrolysate content in the finally obtained chromium-free passivator), and the volume is about 250 mL.
The acidic aluminum modified silica sol is prepared by the following method: firstly, 1g of sodium aluminate (Al)2O350 percent of sodium aluminate solution is added into 85g of deionized water to obtain sodium aluminate aqueous solution, then the sodium aluminate aqueous solution is slowly added into 250g of acidic silica sol (the model is HS-20, 20 represents that the silica sol content is 20 percent, produced by Zhejiang space chemical Co., Ltd.), then the mixed solution of the sodium aluminate and the acidic silica sol is placed into a reflux device and kept in a continuous boiling state for 1h at 100 ℃, alkaline aluminum modified silica sol is obtained after cooling, then the obtained alkaline aluminum modified silica sol is passed through an ion exchange column filled with cation exchange resin, so that the acidic aluminum modified silica sol with 15 percent of content, pH value of 2.0 and the particle size of 10nm is obtained, and the dosage of the acidic aluminum modified silica sol is calculated according to the content of 15 percent and the content of the acidic aluminum modified silica sol in the finally obtained chromium-free passivator.
1L of chromium-free passivator with high corrosion resistance for batch hot galvanizing is prepared in the following embodiments, and raw materials are weighed according to the content of the components in a finished product.
The preparation methods of the chromium-free passivator for batch hot galvanizing with high corrosion resistance described in the following examples are all as follows: firstly dissolving organic phosphoric acid in water for uniform dispersion, then respectively preparing ammonium molybdate (taking ammonium molybdate tetrahydrate, and finally measuring the content of the ammonium molybdate in the obtained chromium-free passivator by the ammonium molybdate tetrahydrate), cerium nitrate (taking cerium nitrate hexahydrate, and finally measuring the content of the cerium nitrate in the obtained chromium-free passivator by the cerium nitrate hexahydrate) into aqueous solution, adding the aqueous solution of the organic phosphoric acid, sequentially adding triethanolamine borate, compound silane hydrolysate and acidic aluminum modified silica sol, adding water for supplementing to 1L, and stirring and mixing all the raw materials for 10 minutes to obtain the high-corrosion-resistance chromium-free passivator for batch hot galvanizing.
Example 1:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 60g/L of phytic acid, 20g/L of ammonium molybdate, 30g/L of triethanolamine borate, 2g/L of cerium nitrate, 200g/L of composite silane hydrolysate and 100g/L of acidic aluminum modified silica sol.
Example 2:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 60g/L of amino trimethylene phosphonic acid, 20g/L of ammonium molybdate, 30g/L of triethanolamine borate, 2g/L of cerium nitrate, 200g/L of composite silane hydrolysate and 100g/L of acidic aluminum modified silica sol.
Example 3:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 60g/L of hydroxyethylidene diphosphonic acid, 20g/L of ammonium molybdate, 30g/L of triethanolamine borate, 2g/L of cerium nitrate, 200g/L of composite silane hydrolysate and 100g/L of acidic aluminum modified silica sol.
Example 4:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 60g/L of diethylenetriamine pentamethylene phosphonic acid, 20g/L of ammonium molybdate, 30g/L of triethanolamine borate, 2g/L of cerium nitrate, 200g/L of composite silane hydrolysate and 100g/L of acidic aluminum modified silica sol.
Example 5:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 30g/L of diethylenetriamine pentamethylene phosphonic acid, 10g/L of ammonium molybdate, 40g/L of triethanolamine borate, 5g/L of cerium nitrate, 300g/L of composite silane hydrolysate and 150g/L of acidic aluminum modified silica sol.
Example 6:
a chromium-free passivator for batch hot galvanizing with high corrosion resistance comprises the following components in percentage by weight except water: 100g/L of diethylenetriamine pentamethylene phosphonic acid, 40g/L of ammonium molybdate, 10g/L of triethanolamine borate, 5g/L of cerium nitrate, 100g/L of composite silane hydrolysate and 50g/L of acidic aluminum modified silica sol.
Comparative example 1: hexavalent chromium passivates (5% chromic anhydride solution by mass) currently used by a certain batch hot galvanizing company;
comparative example 2: another inorganic chromium-free passivator of type WG-01 is currently used by certain batch hot galvanizing companies.
Chromium-free passivates for high corrosion resistance batch hot galvanizing prepared in examples 1-6 and passivates of comparative examples 1-2 were evaluated for effects
The passivates of the examples and comparative examples were prepared according to the passivates: diluting tap water at a ratio of 1:20 (volume ratio) to obtain a diluted passivating agent for later use. Preparing a batch hot-dip galvanized component (the substrate material is a hot-rolled plate) with a zinc layer thickness of about 60 mu m, a smooth zinc layer and a size of 150mm x 75mm x 6mm in advance, immersing the component into each diluted passivator for 10 seconds, taking out, naturally drying for 1 hour, and then respectively testing the corrosion resistance and the weather resistance.
Evaluation method
(1) Corrosion resistance: the corrosion resistance test adopts a neutral salt spray accelerated corrosion test, adopts a JH-60 type salt spray corrosion test box and is executed according to GB/T10125-2012 salt spray test of artificial atmosphere corrosion test; test medium: chemically pure NaCl deionized water solution with medium concentration of 50g/L and pH value of 6.5; test temperature: 35 +/-2 ℃; the settling amount of the salt spray: 1-2mL/h 80cm2(ii) a Placing a sample: the experimental surface and the vertical direction form an angle of 30 degrees; test forAnd (3) testing period: spraying is continuously carried out in each period of 24 h. Opening the box before each period is finished to check the passivated sample, wherein the checking time is not more than 30min, and observing and recording the change of the corrosion area of the sample along with the time.
(2) Weather resistance: the passivated galvanized part is placed in an outdoor natural environment (experimental place: open and non-shielding place in the institute of the applicant, experimental time: 2018.11.1-2019.5.1), and the appearance is observed every 2 months for 6 months continuously.
Evaluation results
The performance evaluation results of the chromium-free passivates for batch hot dip galvanizing obtained in the examples and the comparative examples are shown in the following table 1:
table 1: results of Performance evaluation
As can be seen from the data in Table 1 above:
the galvanized component treated by the chromium-free passivator disclosed by the embodiment of the invention has good corrosion resistance and weather resistance, and the performance of the galvanized component completely reaches or even exceeds the performance of a hexavalent chromium passivator. Particularly, in the embodiment 1 and the embodiment 4, the corrosion resistance can reach 72 hours without corrosion completely, and the surface of the workpiece with the weather resistance of 6 months does not have any white rust and black spots. While comparative example 1, which is a hexavalent chromium passivator, is better in corrosion resistance, the weather resistance is not very sufficient, and slight black spots appear on the surface of the workpiece after six months. As a certain inorganic type chromium-free passivating agent of comparative example 2, corrosion resistance and weather resistance were not sufficient.
The chromium-free passivator provided by the invention is an environment-friendly chromium-free passivator, has high corrosion resistance, can replace the traditional hexavalent chromium passivator in the batch hot galvanizing industry, and has important significance in promoting the environment-friendly process of the batch hot galvanizing industry.
Claims (2)
1. The chromium-free passivator for batch hot galvanizing is characterized by being a mixed solution consisting of organic phosphoric acid, ammonium molybdate, triethanolamine borate, cerium nitrate, composite silane hydrolysate, acidic aluminum modified silica sol and water, wherein the mixed solution comprises the following components in percentage by weight:
20-200 g/L of organic phosphoric acid, 5-40 g/L of ammonium molybdate, 10-50 g/L of triethanolamine borate, 1-10 g/L of cerium nitrate, 100-500 g/L of composite silane hydrolysate and 50-200 g/L of acidic aluminum modified silica sol;
the organic phosphoric acid is one or more than two of phytic acid, amino trimethylene phosphonic acid, hydroxy ethylidene diphosphonic acid and diethylenetriamine pentamethylene phosphonic acid;
the composite silane hydrolysate is prepared by the following method: adding deionized water and glacial acetic acid into a reaction container, heating to 45-55 ℃, dropwise adding a mixed solution consisting of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, tetraethyl orthosilicate and n-propyl trimethoxy silane within 1 hour, continuing stirring at 45-55 ℃ for at least 1 hour after dropwise adding, and then cooling to room temperature to obtain a composite silane hydrolysate;
the deionized water: glacial acetic acid: γ - (2, 3-glycidoxy) propyltrimethoxysilane: tetraethyl orthosilicate: the mass ratio of n-propyltrimethoxysilane is (180-) -220): 2:30:10: 10;
the acidic aluminum modified silica sol is prepared by the following method: adding sodium aluminate into deionized water to obtain a sodium aluminate aqueous solution, then adding the sodium aluminate aqueous solution into acidic silica sol, then placing the mixed solution of the sodium aluminate and the acidic silica sol into a reflux device, keeping the mixed solution in a continuous boiling state at 100 ℃ for at least 0.5h, cooling to obtain alkaline aluminum modified silica sol, and then passing the obtained alkaline aluminum modified silica sol through an ion exchange column filled with cation exchange resin to obtain the acidic aluminum modified silica sol;
sodium aluminate: deionized water: the mass ratio of the acidic silica sol is 1: (80-90): (200-);
the preparation method of the chromium-free passivator for batch hot galvanizing comprises the following steps: firstly dissolving organic phosphoric acid in water for uniform dispersion, then respectively preparing ammonium molybdate and cerium nitrate into aqueous solutions, adding the aqueous solutions into the aqueous solution of the organic phosphoric acid, then sequentially adding triethanolamine borate, composite silane hydrolysate and acidic aluminum modified silica sol, adding water for adjusting the total volume, and stirring and uniformly mixing to obtain the composite organic phosphoric acid.
2. The chromium-free passivator for batch hot galvanizing according to claim 1, wherein the mixed solution comprises the following components:
60g/L of organic phosphoric acid, 20g/L of ammonium molybdate, 30g/L of triethanolamine borate, 2g/L of cerium nitrate, 200g/L of composite silane hydrolysate and 100g/L of acidic aluminum modified silica sol.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974842A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Chronium-free deactivator solution for preventing white rust in galvanized layer and its coating method |
| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN102803141A (en) * | 2009-06-24 | 2012-11-28 | 日挥触媒化成株式会社 | Method For Producing Silica-based Fine Particle-dispersed Sol, Silica-based Fine Particle-dispersed Sol, Coating Composition Containing The Silica-based Fine Particle-dispersed Sol, Curable Coating Film, And Base With Curable Coating Film |
| KR20130075908A (en) * | 2011-12-28 | 2013-07-08 | 재단법인 포항산업과학연구원 | Coating solution for steel sheet, and manufacturing method thereof |
| CN104451638A (en) * | 2014-12-16 | 2015-03-25 | 武汉迪赛新材料有限公司 | Self-lubricating chromium-free passivator and preparation method thereof |
| CN104968836A (en) * | 2012-11-30 | 2015-10-07 | 汉高股份有限及两合公司 | Concentrate for use in corrosion resistant treatment of metal surfaces |
| CN106637177A (en) * | 2016-12-28 | 2017-05-10 | 武汉迪赛环保新材料股份有限公司 | Trivalent chromium passivation agent for zinc iron alloy coated steel plate and preparation method |
| CN108083283A (en) * | 2017-12-07 | 2018-05-29 | 临汾博利士纳米材料有限公司 | Aluminium is modified acidic silicasol and preparation method thereof |
| CN108796481A (en) * | 2018-07-20 | 2018-11-13 | 江苏飞拓界面工程科技有限公司 | A kind of galvanizing chrome-free tanning agent |
| WO2019000451A1 (en) * | 2017-06-30 | 2019-01-03 | 深圳市恒兆智科技有限公司 | Silane passivator, metal workpiece, and passivation method therefor |
| CN109778167A (en) * | 2019-03-26 | 2019-05-21 | 武汉迪赛环保新材料股份有限公司 | A kind of trivalent chromium passivator and preparation method thereof that coating performance is splendid |
| CN110565084A (en) * | 2019-09-17 | 2019-12-13 | 九牧厨卫股份有限公司 | Organic and inorganic composite passivation solution and passivation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5182535B2 (en) * | 2010-05-28 | 2013-04-17 | 信越化学工業株式会社 | Water-based siloxane coating composition and method for producing the same, surface treatment agent, surface-treated steel material, and coated steel material |
-
2020
- 2020-06-15 CN CN202010541831.5A patent/CN111676472B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974842A (en) * | 2006-12-01 | 2007-06-06 | 华南理工大学 | Chronium-free deactivator solution for preventing white rust in galvanized layer and its coating method |
| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN102803141A (en) * | 2009-06-24 | 2012-11-28 | 日挥触媒化成株式会社 | Method For Producing Silica-based Fine Particle-dispersed Sol, Silica-based Fine Particle-dispersed Sol, Coating Composition Containing The Silica-based Fine Particle-dispersed Sol, Curable Coating Film, And Base With Curable Coating Film |
| KR20130075908A (en) * | 2011-12-28 | 2013-07-08 | 재단법인 포항산업과학연구원 | Coating solution for steel sheet, and manufacturing method thereof |
| CN104968836A (en) * | 2012-11-30 | 2015-10-07 | 汉高股份有限及两合公司 | Concentrate for use in corrosion resistant treatment of metal surfaces |
| CN104451638A (en) * | 2014-12-16 | 2015-03-25 | 武汉迪赛新材料有限公司 | Self-lubricating chromium-free passivator and preparation method thereof |
| CN106637177A (en) * | 2016-12-28 | 2017-05-10 | 武汉迪赛环保新材料股份有限公司 | Trivalent chromium passivation agent for zinc iron alloy coated steel plate and preparation method |
| WO2019000451A1 (en) * | 2017-06-30 | 2019-01-03 | 深圳市恒兆智科技有限公司 | Silane passivator, metal workpiece, and passivation method therefor |
| CN108083283A (en) * | 2017-12-07 | 2018-05-29 | 临汾博利士纳米材料有限公司 | Aluminium is modified acidic silicasol and preparation method thereof |
| CN108796481A (en) * | 2018-07-20 | 2018-11-13 | 江苏飞拓界面工程科技有限公司 | A kind of galvanizing chrome-free tanning agent |
| CN109778167A (en) * | 2019-03-26 | 2019-05-21 | 武汉迪赛环保新材料股份有限公司 | A kind of trivalent chromium passivator and preparation method thereof that coating performance is splendid |
| CN110565084A (en) * | 2019-09-17 | 2019-12-13 | 九牧厨卫股份有限公司 | Organic and inorganic composite passivation solution and passivation method |
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