CN114107968A - Anti-yellowing vitrification liquid for metal surface conversion film and preparation method thereof - Google Patents

Anti-yellowing vitrification liquid for metal surface conversion film and preparation method thereof Download PDF

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Publication number
CN114107968A
CN114107968A CN202111407153.4A CN202111407153A CN114107968A CN 114107968 A CN114107968 A CN 114107968A CN 202111407153 A CN202111407153 A CN 202111407153A CN 114107968 A CN114107968 A CN 114107968A
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yellowing
vitrification liquid
vitrification
fluozirconate
acid
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刘兵
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Foshan Haimingwei Ecological Technology Co ltd
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Foshan Haimingwei Ecological Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical 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
    • C23C22/05Chemical 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
    • C23C22/06Chemical 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
    • C23C22/34Chemical 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 fluorides or complex fluorides

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  • 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)
  • Chemical Treatment Of Metals (AREA)

Abstract

The invention relates to the technical field of metal material surface treatment, and discloses an anti-yellowing vitrification liquid for a metal surface conversion film and a preparation method thereof, wherein the anti-yellowing vitrification liquid comprises the following raw materials in percentage by weight: 0.5-1.5% of fluozirconic acid or fluozirconate, 0.5-1.0% of nitric acid, 0.05-0.2% of hydrofluoric acid or hydrofluoride, 0.5-1.0% of amino silane, 0.6-1.2% of organosilicon modified water-soluble polyurethane resin and 2-5% of acidic alumina sol, wherein aluminum oxide occupies a film forming position in the surface space of a substrate, the deposition occupation of zirconium oxide is reduced, the dissolution rate and the weight loss rate of iron ions on the surface of the substrate are reduced, the increase rate of the iron ions in the vitrification liquid is weakened, and the yellowing time of the vitrification liquid is delayed.

Description

Anti-yellowing vitrification liquid for metal surface conversion film and preparation method thereof
Technical Field
The invention relates to the technical field of metal material surface treatment, in particular to an anti-yellowing vitrification liquid for a metal surface conversion film and a preparation method thereof.
Background
The prior surface conversion coating process for steel mainly comprises a nano zirconate conversion coating process, which is commonly called a vitrification process. Because the vitrification liquid is acidic, iron contained on the surface of the base material is dissolved and corroded by acid in the film forming process, so that the pH value of the vitrification liquid is gradually increased, the complex oxide containing zirconium ions is deposited on the surface of the base material, and a macroscopic vitrification film is formed after baking and dehydration. Iron ions on the surface of the substrate enter the vitrification liquid and are oxidized into ferric oxide by contacting with air, so that the vitrification liquid shows yellow.
With the increase of ferric oxide (namely rust) content in the vitrification liquid, impurity points in the film forming of the vitrification film are obviously increased, the quality of products is reduced, the vitrification liquid needs to be replaced to continue production, the time for replacing the vitrification liquid is wasted, and the material cost for updating the vitrification liquid is increased.
Disclosure of Invention
Based on the defects of the prior art, the invention provides the vitrification liquid with yellowing resistance, which can prevent the vitrification liquid from yellowing and reduce the time cost and the material cost waste of replacing the vitrification liquid.
The invention also aims to provide a preparation method for producing the vitrification liquid with anti-yellowing performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-yellowing vitrification liquid for a conversion film on the surface of steel comprises the following raw materials in percentage by weight: 0.5 to 1.5 percent of fluozirconate or fluozirconate, 0.5 to 1.0 percent of nitric acid, 0.05 to 0.2 percent of hydrofluoric acid or hydrofluoride, 0.5 to 1.0 percent of amino silane, 0.6 to 1.2 percent of organosilicon modified water-soluble polyurethane resin and 2 to 5 percent of acidic alumina sol.
The anti-yellowing vitrification liquid contains 0.2-0.5g/l of zirconium.
Preferably, the pH value of the yellowing-resistant vitrification liquid is 4.0-5.5.
Preferably, the raw materials comprise, by weight: 1.0% of fluozirconate or fluozirconate, 0.8% of nitric acid, 0.1% of hydrofluoric acid or hydrofluoride, 1.0% of amino silane, 1.0% of organosilicon modified water-soluble polyurethane resin and 5% of acidic alumina sol;
the anti-yellowing vitrification liquid has the zirconium content of 0.5g/l and the pH value of 5.0.
Further, the invention also provides a preparation method of the anti-yellowing vitrification liquid for the steel surface conversion film, which comprises the following steps:
s1) injecting normal-temperature deionized water into the reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic acid salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
s2), adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, stirring uniformly, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and stirring uniformly to obtain the anti-yellowing vitrification liquid.
Preferably, in step S1), the conductivity of the deionized water is less than 5 μ S/cm.
Preferably, in step S1), the stirring speed is 100 r/min.
Preferably, in the steps S1) and S2), the stirring time after each time of the materials is not less than 10 min.
The technical scheme of the invention has the beneficial effects that: according to the anti-yellowing vitrification liquid for the steel surface conversion film, the aluminum oxide occupies a film forming position in the surface space of the base material, the deposition occupation of zirconium oxide is reduced, the dissolution rate and the weight loss rate of iron ions on the surface of the base material are reduced, the increase speed of the iron ions in the vitrification liquid is weakened, and the yellowing time of the vitrification liquid is delayed. Compared with the vitrification liquid in the prior art, the anti-yellowing vitrification liquid has the advantages that the effective zirconium content is obviously reduced, the material cost is better, and the environment is more environment-friendly.
The preparation method of the anti-yellowing vitrification liquid for the steel surface conversion film provided by the invention does not need to add auxiliary equipment, and is simple and controllable in process.
Detailed Description
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
The technical solution of the present invention will be further described with reference to the following embodiments.
An anti-yellowing vitrification liquid for a conversion film on the surface of steel comprises the following raw materials in percentage by weight: 0.5 to 1.5 percent of fluozirconate or fluozirconate, 0.5 to 1.0 percent of nitric acid, 0.05 to 0.2 percent of hydrofluoric acid or hydrofluoride, 0.5 to 1.0 percent of amino silane, 0.6 to 1.2 percent of organosilicon modified water-soluble polyurethane resin and 2 to 5 percent of acidic alumina sol.
The anti-yellowing vitrification solution for the conversion film on the surface of the steel comprises the following components:
fluorozirconic acid or fluorozirconate: mainly used for ceramic film formation. A local environment with high pH value is formed on the surface of the ferrous substrate in the acidic vitrification liquid, and zirconium dioxide formed by the final decomposition of the fluorozirconate is deposited on the surface of the ferrous substrate to form a vitrification film.
Nitric acid: the acidity of the vitrified liquid is improved, the vitrified liquid and the iron on the surface of the base material are subjected to acidification reaction, the iron rust on the surface of the base material is promoted to be dissolved into ferric nitrate, and the formation of a vitrified film is accelerated.
Hydrofluoric acid or hydrofluoric acid salt: the etching speed of the surface of the base material is improved, and the formation of a vitrified film is promoted; can also chelate iron ions and prolong the service life of the vitrification liquid.
Amino silane: the silicon hydroxyl formed by hydrolyzing the aminosilane forms a coordination bond with iron contained in the substrate, so that the flexibility and the adhesive force of the vitrified film can be enhanced, and the binding force of a surface coating of a subsequent process can be enhanced.
Organic silicon modified water-soluble resin: the hydrolyzed organosilicon modified water-soluble resin has similar action with amino silane, can be combined with aluminum ions contained in the aluminum sol, and is adsorbed on the ceramic membrane.
Aluminum sol: the ceramic film is formed, aluminum oxide is deposited in a local environment with a high pH value on the surface of the base material, the density of the ceramic film is enhanced, the surface space of the base material occupies a film forming position, the deposition occupation of zirconium oxide is reduced, the dissolution rate and the weight loss rate of iron ions on the surface of the base material are reduced, the increase speed of the iron ions in the ceramic liquid is weakened, and the yellowing time of the ceramic liquid is prolonged.
Specifically, the zirconium content of the anti-yellowing vitrification liquid is 0.2-0.5 g/l.
Compared with the vitrification solution in the prior art, the vitrification solution has the effective zirconium content of 0.7g/l, is obviously reduced, has better material cost and is more environment-friendly.
The zirconium content is between 0.2 and 0.5g/L, and the zirconium content of the anti-yellowing vitrification liquid refers to the effective zirconium content of the vitrification liquid in a working state determined by titration.
The method for measuring the zirconium content is as follows: taking 10ml of working solution by a pipette, putting the working solution into a clean conical flask, adding 20ml of hydrochloric acid-potassium chloride buffer solution with the pH value of 1.4, adding 5ml of 5% (W/W) hydroxylamine hydrochloride solution, dropwise adding 1% (W/W) xylenol orange indicator, shaking uniformly to show wine red, putting the conical flask on an electric furnace, heating until the bottom of the conical flask begins to bubble, then sucking 1mmol/l of EDTA standard solution by the pipette, titrating to bright yellow, wherein the milliliter number of the consumed EDTA standard solution is the zirconium content value of the working solution.
Preferably, the pH value of the yellowing-resistant vitrification liquid is 4.0-5.5.
The proper acidity, pH value of 4.0-5.5, preferably 4.2-5.5, is favorable for the fluorozirconic acid or fluorozirconate to decompose and form zirconium dioxide to deposit on the surface of the metal substrate to form a ceramic film.
Preferably, the raw materials comprise, by weight: 1.0% of fluozirconate or fluozirconate, 0.8% of nitric acid, 0.1% of hydrofluoric acid or hydrofluoride, 1.0% of amino silane, 1.0% of organosilicon modified water-soluble polyurethane resin and 5% of acidic alumina sol;
the anti-yellowing vitrification liquid has the zirconium content of 0.5g/l and the pH value of 5.0.
Not only can obtain a good ceramic film on the surface of the iron base material, but also can prolong the yellowing time of the ceramic liquid to more than 1 month.
Further, the invention also provides a preparation method of the anti-yellowing vitrification liquid for the steel surface conversion film, which comprises the following steps:
s1) injecting normal-temperature deionized water into the reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic acid salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
s2), adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, stirring uniformly, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and stirring uniformly to obtain the anti-yellowing vitrification liquid.
The preparation method does not need to add auxiliary equipment, and the process is simple and controllable.
Preferably, in step S1), the conductivity of the deionized water is less than 5 μ S/cm.
Deionized water with the conductivity less than 5 muS/cm is adopted, so that the ammonia silane and the organic silicon modified water-soluble polyurethane resin in the anti-yellowing vitrification liquid can be prevented from being consumed by calcium and magnesium ions contained in the water, and the quality of the vitrification membrane and the anti-yellowing effect are not influenced.
Preferably, in step S1), the stirring speed is 100 r/min.
The stirring speed of 100r/min is kept, so that the material sedimentation can be effectively prevented, and the sufficiency of material dissolution and mutual reaction is improved.
Preferably, in the steps S1) and S2), the stirring time after each time of the materials is not less than 10 min.
The feeding interval of the two materials is not less than 10min, and stirring is kept, so that the dissolution and reaction of the materials can be more sufficient, and the conversion film and anti-yellowing effect of the vitrification liquid can be guaranteed.
Example 1
1. Injecting deionized water with the electric conductivity less than 5 mu S/cm at normal temperature into a reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, uniformly stirring, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and uniformly stirring to obtain the anti-yellowing vitrification liquid;
the stirring speed in the above process is 100r/min, the adding interval time of the two materials is not less than 10min, and stirring is kept.
2. The raw materials comprise the following components in percentage by weight: 0.5% of fluozirconate or fluozirconate, 0.5% of nitric acid, 0.05% of hydrofluoric acid or hydrofluoride, 0.5% of amino silane, 0.6% of organosilicon modified water-soluble polyurethane resin and 2% of acidic alumina sol; the zirconium content of the anti-yellowing vitrification liquid is 0.2 g/l; the pH value of the anti-yellowing vitrification liquid is 4.0.
3. Vitrification treatment of each batch: immersing, and spraying for 2 minutes at the water pressure of 0.1-0.15 MP; soaking for 5-8 min.
4. The ceramic liquid is used continuously for 15 days without yellowing.
Example 2
1. Injecting deionized water with the electric conductivity less than 5 mu S/cm at normal temperature into a reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, uniformly stirring, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and uniformly stirring to obtain the anti-yellowing vitrification liquid;
the stirring speed in the above process is 100r/min, the adding interval time of the two materials is not less than 10min, and stirring is kept.
2. The raw materials comprise the following components in percentage by weight: 1.5% of fluozirconate or fluozirconate, 1.0% of nitric acid, 0.2% of hydrofluoric acid or hydrofluoride, 1.0% of amino silane, 1.2% of organosilicon modified water-soluble polyurethane resin and 2-5% of acidic alumina sol; the zirconium content of the anti-yellowing vitrification liquid is 0.5 g/l; the pH value of the anti-yellowing vitrification liquid is 5.5.
3. Vitrification treatment of each batch: immersing, and spraying for 2 minutes at the water pressure of 0.1-0.15 MP; soaking for 5-8 min.
4. The ceramic liquid is used continuously for 25 days without yellowing.
Example 3
1. Injecting deionized water with the electric conductivity less than 5 mu S/cm at normal temperature into a reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, uniformly stirring, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and uniformly stirring to obtain the anti-yellowing vitrification liquid;
the stirring speed in the above process is 100r/min, the adding interval time of the two materials is not less than 10min, and stirring is kept.
2. The raw materials comprise the following components in percentage by weight: 1.0% of fluozirconate or fluozirconate, 0.8% of nitric acid, 0.1% of hydrofluoric acid or hydrofluoride, 1.0% of amino silane, 1.0% of organosilicon modified water-soluble polyurethane resin and 5% of acidic alumina sol; the anti-yellowing vitrification liquid has the zirconium content of 0.5g/l and the pH value of 5.0.
3. Vitrification treatment of each batch: immersing, and spraying for 2 minutes at the water pressure of 0.1-0.15 MP; soaking for 5-8 min.
4. The ceramic liquid is used continuously for 30 days without yellowing.
Comparative example 1
1. Injecting deionized water with the electric conductivity less than 5 mu S/cm at normal temperature into the reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic salt is dissolved, adding amino silane, and stirring until the reaction is complete to prepare a mixed solution;
adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, uniformly stirring, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and uniformly stirring to obtain a vitrification liquid;
the stirring speed in the above process is 100r/min, the adding interval time of the two materials is not less than 10min, and stirring is kept.
2. The raw materials comprise the following components in percentage by weight: 1.0% of fluorozirconic acid or fluorozirconate, 0.8% of nitric acid, 0.1% of hydrofluoric acid or hydrofluoride and 1.0% of amino silane; the vitrification liquid has the zirconium content of 0.5g/l and the pH value of 5.0.
3. Vitrification treatment of each batch: immersing, and spraying for 2 minutes at the water pressure of 0.1-0.15 MP; soaking for 5-8 min.
4. After the continuous use for 5 days, the vitrification liquid is obviously yellowed.
In summary, according to the technical solution of the above embodiment of the present invention, in the anti-yellowing vitrification liquid for a conversion film on a steel surface, aluminum oxide occupies a film forming position in a surface space of a substrate, so as to reduce deposition occupation of zirconium oxide, reduce a dissolution rate and a weight loss rate of iron ions on the surface of the substrate, weaken an increase rate of iron ions in the vitrification liquid, and delay a yellowing time of the vitrification liquid. Compared with the vitrification liquid in the prior art, the anti-yellowing vitrification liquid has the advantages that the effective zirconium content is obviously reduced, the material cost is better, and the environment is more environment-friendly.
The preparation method of the anti-yellowing vitrification liquid for the steel surface conversion film provided by the invention does not need to add auxiliary equipment, and is simple and controllable in process.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
The technical principle of the present invention is described above in connection with specific embodiments. The description is only intended to explain the principles of the invention; and should not be construed as limiting the scope of the invention in any way. Based on the explanations herein; other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty; all of which fall within the scope of the present invention.

Claims (8)

1. The anti-yellowing vitrification liquid for the conversion film on the surface of steel is characterized by comprising the following raw materials in percentage by weight: 0.5 to 1.5 percent of fluozirconate or fluozirconate, 0.5 to 1.0 percent of nitric acid, 0.05 to 0.2 percent of hydrofluoric acid or hydrofluoride, 0.5 to 1.0 percent of amino silane, 0.6 to 1.2 percent of organosilicon modified water-soluble polyurethane resin and 2 to 5 percent of acidic alumina sol.
2. The steel product surface conversion coating anti-yellowing vitrification liquid according to claim 1, wherein the anti-yellowing vitrification liquid has a zirconium content of 0.2 to 0.5 g/l.
3. The anti-yellowing vitrification liquid for a steel product surface conversion film according to claim 1, wherein the pH of the anti-yellowing vitrification liquid is 4.0 to 5.5.
4. The anti-yellowing vitrification liquid of the steel surface conversion coating according to claim 1, wherein the raw materials comprise, in weight percent: 1.0% of fluozirconate or fluozirconate, 0.8% of nitric acid, 0.1% of hydrofluoric acid or hydrofluoride, 1.0% of amino silane, 1.0% of organosilicon modified water-soluble polyurethane resin and 5% of acidic alumina sol;
the anti-yellowing vitrification liquid has the zirconium content of 0.5g/l and the pH value of 5.0.
5. The method for preparing the yellowing-resistant vitrification liquid for the conversion coating on the steel surface according to any one of claims 1 to 4, comprising the steps of:
s1) injecting normal-temperature deionized water into the reaction kettle, adding fluozirconic acid or fluozirconate, stirring until the fluozirconic acid or the fluozirconic acid salt is dissolved, adding amino silane, stirring until the reaction is complete, adding organic silicon modified water-soluble polyurethane resin, and stirring until the reaction is complete to prepare a mixed solution;
s2), adding nitric acid and hydrofluoric acid or hydrofluoride into the mixed solution, stirring uniformly, adding acidic alumina sol, supplementing deionized water to enable the water level in the reaction kettle to reach a set scale, and stirring uniformly to obtain the anti-yellowing vitrification liquid.
6. The method according to claim 5, wherein in step S1), the conductivity of the deionized water is less than 5 μ S/cm.
7. The method for producing a yellowing-resistant vitrification solution for a conversion coating on a steel product surface according to claim 5, wherein the stirring speed is 100r/min in step S1).
8. The method for preparing the anti-yellowing vitrification liquid for the conversion coating on the steel surface according to claim 5, wherein the stirring time after each time of the materials in the steps S1) and S2) is not less than 10 min.
CN202111407153.4A 2021-11-24 2021-11-24 Anti-yellowing vitrification liquid for metal surface conversion film and preparation method thereof Pending CN114107968A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115110074A (en) * 2022-07-14 2022-09-27 佛山市海明威生态科技股份有限公司 Nano zirconate conversion coating process for rusted plate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100170594A1 (en) * 2006-09-08 2010-07-08 Toshio Inbe Method of treating surface of metal base metallic material treated by the surface treatment method and method of coating the metallic material
CN113215558A (en) * 2021-05-18 2021-08-06 中山市壹桥环保科技有限公司 Washing-free vitrification agent and use method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100170594A1 (en) * 2006-09-08 2010-07-08 Toshio Inbe Method of treating surface of metal base metallic material treated by the surface treatment method and method of coating the metallic material
CN113215558A (en) * 2021-05-18 2021-08-06 中山市壹桥环保科技有限公司 Washing-free vitrification agent and use method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115110074A (en) * 2022-07-14 2022-09-27 佛山市海明威生态科技股份有限公司 Nano zirconate conversion coating process for rusted plate

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Application publication date: 20220301