CN115786897A - Surface treatment agent, aluminum or aluminum alloy material having surface treatment film, and method for producing same - Google Patents
Surface treatment agent, aluminum or aluminum alloy material having surface treatment film, and method for producing same Download PDFInfo
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- CN115786897A CN115786897A CN202211478035.7A CN202211478035A CN115786897A CN 115786897 A CN115786897 A CN 115786897A CN 202211478035 A CN202211478035 A CN 202211478035A CN 115786897 A CN115786897 A CN 115786897A
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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
- C23C22/34—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 fluorides or complex fluorides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Abstract
The technical problem of the present invention is to provide a surface treatment agent for aluminum or aluminum alloy materials, which can form a surface treatment coating film having excellent corrosion resistance on aluminum or aluminum alloy materials and also having excellent corrosion resistance even when the coating film is exposed to high temperatures. The above technical problems are solved by the following surface treatment agent. A surface treating agent for surface treatment of an aluminum or aluminum alloy material, comprising: trivalent chromium-containing ions (A), at least 1 ion (B) selected from titanium-containing ions and zirconium-containing ions, zinc-containing ions (C), free fluoride ions (D), and nitrate ions (E).
Description
The application is a divisional application of an invention patent application with the application number of 201980021331.4, the application date of the original application is 3/20/2019, and the invention name is 'surface treating agent, aluminum or aluminum alloy material with surface treating coating film and a manufacturing method thereof'.
Technical Field
The present invention relates to a surface treatment agent for surface treatment of an aluminum or aluminum alloy material, an aluminum or aluminum alloy material having a surface treatment film formed by the surface treatment agent, and a method for producing the same.
Background
In a wide range of fields such as aircraft materials, building materials, and automobile parts, surface treatment agents for metal materials containing trivalent chromium have been developed as surface treatment agents for aluminum or aluminum alloy materials.
For example, patent document 1 discloses a chemical conversion treatment liquid for a metal material, which contains: a component (A) containing a water-soluble trivalent chromium compound, a component (B) containing at least 1 selected from a water-soluble titanium compound and a water-soluble zirconium compound, a component (C) containing a water-soluble nitrate compound, and a component (D) containing a water-soluble aluminum compound and a component (E) containing a fluorine compound, and the pH is controlled in the range of 2.3 to 5.0.
Patent document 2 discloses a chemical conversion treatment liquid containing a predetermined amount of a specific trivalent chromium compound, a predetermined amount of a specific zirconium compound, and a predetermined amount of a specific dicarboxylic acid compound.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open publication No. 2006-328501;
patent document 2: japanese patent laid-open No. 2006-316334.
Problems to be solved by the invention
However, the film formed on the aluminum or aluminum alloy material using the surface treatment agent of patent documents 1 to 2 may be exposed to a high-temperature environment depending on the application of the aluminum or aluminum alloy, and the corrosion resistance may be lowered.
The purpose of the present invention is to provide a surface treatment agent capable of forming a surface treatment film having excellent corrosion resistance on an aluminum or aluminum alloy material and having excellent corrosion resistance even when the film is exposed to high temperatures, an aluminum or aluminum alloy material having a surface treatment film formed by the surface treatment agent, and a method for producing the same.
Disclosure of Invention
Means for solving the problems
The present inventors have conducted intensive studies to solve the above problems, and as a result, have found that: the present inventors have found that a surface treatment agent containing trivalent chromium ions (a), at least 1 ion (B) selected from titanium-containing ions and zirconium-containing ions, zinc-containing ions (C), free fluoride ions (D), and nitrate ions (E) can form a surface treatment coating film having excellent corrosion resistance to aluminum or an aluminum alloy material and also having excellent corrosion resistance even when the coating film is exposed to high temperatures, and thus have completed the present invention.
The present invention for solving the above problems is:
(1) A surface treating agent for surface treatment of an aluminum or aluminum alloy material, comprising: a trivalent chromium-containing ion (A), at least 1 ion (B) selected from a titanium-containing ion and a zirconium-containing ion, a zinc-containing ion (C), a free fluoride ion (D), and a nitrate ion (E);
(2) A method for producing an aluminum or aluminum alloy material having a surface treatment coating film, comprising a contacting step in which the surface treatment agent according to the above (1) is contacted with a surface or a surface of the aluminum or aluminum alloy material;
(3) An aluminum or aluminum alloy material having a surface-treated coating film, which is obtained by the production method described in the above (2); and the like.
Effects of the invention
According to the present invention, it is possible to provide a surface treatment agent capable of forming a surface treatment film having excellent corrosion resistance on an aluminum or aluminum alloy material and having excellent corrosion resistance even when the film is exposed to high temperatures, an aluminum or aluminum alloy material having a surface treatment film formed by the surface treatment agent, and a method for producing the same.
Detailed Description
(1) Surface treating agent
The surface treatment agent of the present embodiment is a treatment agent for surface treatment of an aluminum or aluminum alloy material. The surface treatment agent can also be used as a chemical conversion treatment agent. The surface treating agent contains: a trivalent chromium-containing ion (A), at least 1 ion (B) selected from a titanium-containing ion and a zirconium-containing ion, a zinc-containing ion (C), a free fluoride ion (D), and a nitrate ion (E). The surface treatment agent may be a surface treatment agent obtained by adding only a supply source of these ions to an aqueous medium, or may be a surface treatment agent obtained by further adding other components. The components, composition (content) and acidity and basicity are described in detail below. Examples of the ion containing the metal include a metal ion, a metal oxide ion, a metal hydroxide ion, and a metal complex ion.
(trivalent chromium-containing ion)
The source of the trivalent chromium-containing ion (a) in the surface treatment agent is not particularly limited as long as the ion (a) can be supplied by mixing it with the aqueous medium. Examples thereof include chromium fluoride, chromium nitrate, chromium sulfate, and chromium phosphate. These may be used in 1 kind alone or in 2 or more kinds. The content of the ion (A) in the surface treating agent is not particularly limited, but is usually in the range of 5 to 1000mg/L, preferably in the range of 20 to 700mg/L in terms of chromium-equivalent mass concentration. In the present embodiment, it is preferable that hexavalent chromium is not contained. In addition, "no hexavalent chromium ions are contained" means that the content thereof is zero, and unavoidable mixing is allowed. Specifically, it may be 10mg/L or less, 5mg/L or less, 1mg/L or less, 0.5mg/L or less, and 0.1mg/L or less.
(ions of at least 1 kind selected from the group consisting of titanium-containing ions and zirconium-containing ions)
The source of the at least 1 kind of ion (B) selected from the group consisting of a titanium-containing ion and a zirconium-containing ion in the surface treatment agent is not particularly limited as long as the ion (B) can be supplied by mixing it with an aqueous medium. Examples thereof include: titanium sulfate, titanyl sulfate, ammonium titanium sulfate, titanium nitrate, titanyl nitrate, ammonium titanium nitrate, hexafluorotitanic acid, hexafluorotitanium complex salt, zirconium sulfate, zirconyl sulfate, ammonium zirconium sulfate, zirconium nitrate, zirconyl nitrate, ammonium zirconium nitrate, hexafluorozirconic acid, hexafluorozirconium complex salt, titanium lactate, titanium acetylacetonate, titanium triethanolamine, titanium octylglycolate, tetraisopropyl titanate, tetra-n-butyl titanate, zirconium acetate, zirconium lactate, zirconium tetraacetoacetone, zirconium tributoxyacetonate, tetra-n-butoxy zirconium, tetra-n-propoxy zirconium, and the like. These may be used in 1 kind alone or in 2 or more kinds. The content of the ion (B) in the surface treatment agent is not particularly limited, and is usually in the range of 5 to 1000mg/L, preferably 20 to 700mg/L, in terms of metal-equivalent mass concentration (the total metal-equivalent mass concentration in the case of mixing 2 or more kinds of supply sources).
(Zinc-containing ion)
The supply source of the zinc-containing ion (C) in the surface treatment agent is not particularly limited as long as the ion (C) can be supplied by mixing it with an aqueous medium. Examples thereof include: metallic zinc, zinc oxide, zinc carbonate, zinc nitrate, zinc chloride, zinc sulfate, zinc fluoride, zinc iodide, zinc dihydrogen phosphate, zinc acetylacetonate, etc. These may be used in 1 kind alone or in 2 or more kinds. The content of the ion (C) in the surface treating agent is not particularly limited, but is usually in the range of 20 to 10000mg/L, preferably in the range of 50 to 10000mg/L, more preferably in the range of 300 to 8000mg/L, and further preferably in the range of 700 to 5000mg/L in terms of zinc mass concentration.
(free fluoride ion)
The source of the free fluorine ions (D) in the surface treatment agent is not particularly limited as long as it can supply the free fluorine ions (D) by mixing with an aqueous medium. Examples thereof include: hydrofluoric acid, ammonium fluoride, chromium fluoride, hexafluorotitanic acid, hexafluorotitanium complex salt, hexafluorozirconic acid, hexafluorozirconium complex salt, magnesium fluoride, aluminum fluoride, hexafluorosilicic acid, sodium fluoride, potassium fluoride, zinc fluoride, and the like. These may be used in 1 kind alone or in 2 or more kinds. The free fluorine ion (D) may be supplied from the same compound as the source of the above (a), (B) and/or (C), or may be supplied from a different compound from the source of the above (a), (B) and/or (C). The mass concentration of the free fluorine ions (D) in the surface treatment agent is preferably 3 to 100mg/L, more preferably 5 to 70mg/L, in terms of fluorine.
(nitrate ion)
The source of the nitrate ion (E) in the surface treatment agent is not particularly limited as long as it can supply the nitrate ion (E) when mixed with the aqueous medium. Examples thereof include: nitric acid, sodium nitrate, potassium nitrate, magnesium nitrate, ammonium nitrate, cerium nitrate, manganese nitrate, strontium nitrate, calcium nitrate, cobalt nitrate, aluminum nitrate, zinc nitrate, and the like. These may be used in 1 kind alone or in 2 or more kinds. The nitrate ion (E) may be supplied from the same compound as the supply source of (a), (B) and/or (C) or may be supplied from a different compound from the supply source of (a), (B) and/or (C). The content of the nitrate ion (E) in the surface treatment agent is not particularly limited, and is usually in the range of 100 to 30000mg/L in terms of a mass concentration of nitric acid.
(other Components)
Various metal components and additives may be added to the surface treatment agent of the present embodiment within a range not to impair the effects of the present invention. Examples of the metal component include: vanadium, molybdenum, tungsten, manganese, cerium, magnesium, calcium, cobalt, nickel, strontium, lithium, niobium, yttrium, bismuth and the like. Examples of the additives include: a compound having a hydroxyl group, a compound having a formyl group, a compound having a benzoyl group, a compound having an amino group, a compound having an imino group, a compound having a cyano group, a compound having an azo group, a compound having a thiol group, a compound having a sulfo group, a compound having a nitro group, a compound having a urethane bond, and the like. Only 1 kind of these metal components and additives may be used, or 2 or more kinds may be used. The content of these additives is at most several mass% based on the total amount of the surface treatment agent, from the viewpoint of adding the additives within a range not impairing the effects of the present invention.
On the other hand, the surface treatment agent of the present embodiment preferably does not contain a compound having a carboxyl group, preferably does not contain a compound having an amidino group, preferably does not contain a compound having an aromatic ring, and more preferably does not contain an organic substance. By using a surface treatment agent containing no organic substance, it is possible to suppress a decrease in corrosion resistance of the formed coating film. The term "containing no organic substance" does not mean that the content thereof is always zero, and is allowed within a range in which the effect of the present invention is not significantly impaired. Specifically, it may be 10mg/L or less, 5mg/L or less, 1mg/L or less, 0.5mg/L or less, 0.1mg/L or less, or zero. The organic substance is a compound containing carbon as a main component, and a derivative thereof may be contained in the organic substance.
(acid and base)
The pH of the surface treatment agent of the present embodiment is not particularly limited, but is preferably 2.3 to 5.0, and more preferably 3.0 to 4.5. Here, the pH in the present specification refers to a value at a temperature when the surface treatment agent contacts the surface of the aluminum or aluminum alloy material or on the surface. The pH can be measured, for example, by a portable conductivity/pH meter [ WM-32EP (manufactured by DKK-TOA CORPORATION) ].
While the composition of the surface treatment agent of the present embodiment has been described above, another aspect of the present invention is a surface treatment agent for surface treatment of an aluminum or aluminum alloy material, which is obtained by adding a supply source of trivalent chromium-containing ions (a), a supply source of at least 1 kind of ions (B) selected from titanium-containing ions and zirconium-containing ions, a supply source of zinc-containing ions (C), a supply source of free fluorine ions (D), and a supply source of nitrate ions (E). The source of the free fluorine ions (D) may be the same as the source of the above-mentioned (a), (B) and/or (C), or may be a different compound from the source of the above-mentioned (a), (B) and/or (C). The source of the nitrate ions (E) may be the same compound as the source of the nitrate ions (a), (B), and/or (C) or a different compound from the source of the nitrate ions (a), (B), and/or (C).
(2) Method for producing surface treatment agent
The surface treatment agent of the present embodiment can be obtained by adding a suitable amount of the supply source of the trivalent chromium-containing ion (a), the supply source of at least 1 kind of ion (B) selected from the group consisting of a titanium-containing ion and a zirconium-containing ion, the supply source of a zinc-containing ion (C), the supply source of free fluorine ion (D), and the supply source of nitrate ion (E) to an aqueous medium and stirring them. In addition, in the production, a solid supply source may be added to the aqueous medium, or the solid supply source may be dissolved in the aqueous medium in advance and then added as an aqueous medium solution. The pH range of the surface treatment agent is preferably adjusted by using a pH adjuster such as nitric acid, hydrofluoric acid, ammonium hydrogen carbonate, or ammonia water, as described above, but the pH range is not limited to these components. Further, 1 or 2 or more pH regulators may be used.
As the aqueous medium, water is generally used. The water-miscible organic solvent may be contained within a range not impairing the effects of the present invention, but water is preferred. When the water-miscible organic solvent is contained, the content may be 10mg/L or less, 5mg/L or less, 1mg/L or less, 0.5mg/L or less, and 0.1mg/L or less.
(3) Method for producing aluminum or aluminum alloy material having surface treatment coating film
The method for producing an aluminum or aluminum alloy material having a coating film formed by the surface treatment agent of the present embodiment includes a contact step in which the surface treatment agent of the present embodiment is brought into contact with the surface or the surface of the aluminum or aluminum alloy material. Thereby, a surface treatment coating is formed on the surface or the surface of the aluminum or aluminum alloy material. A pretreatment step such as a degreasing step or an acid washing step may be performed before the contact step. The washing step may be performed after each step, or the drying step may be performed after the washing step.
(aluminum or aluminum alloy material)
The aluminum or aluminum alloy material to be subjected to the surface treatment agent is not particularly limited, but is particularly effective for an aluminum die casting material having an oxide film thickness on the surface and segregation of alloy components. The use of the aluminum or aluminum alloy material is not particularly limited, and examples thereof include marine propulsion engines and their peripherals, and internal combustion engine members for motorcycles.
(degreasing Process)
In the manufacturing method of the present embodiment, it is preferable to perform a degreasing step in which a known degreasing agent is brought into contact with the surface or the surface of the aluminum or aluminum alloy material before the contacting step. The degreasing method is not particularly limited, and examples thereof include solvent degreasing, alkali degreasing, and the like.
(contact step)
In the contacting step in the production method of the present embodiment, the contacting temperature and the contacting time are not particularly limited, and the surface treatment agent is brought into contact with the surface of the aluminum or aluminum alloy material or on the surface for 10 to 600 seconds, usually at 30 to 80 ℃ and preferably at 40 to 70 ℃. After this step, the substrate may be washed with water or deionized water, if necessary, and then dried. The drying temperature is not particularly limited, and is preferably 50 to 140 ℃. The method of bringing the surface-treating agent into contact with the surface of the aluminum or aluminum alloy material or the surface thereof is not particularly limited, and examples thereof include a dipping method, a spraying method, and a flow coating method.
(4) Aluminum or aluminum alloy material having surface treatment film
The aluminum or aluminum alloy material having a surface-treated film produced by the above-described production method is another embodiment of the present invention. The amount of the surface treatment coating deposited on the aluminum or aluminum alloy material is not particularly limited, but the surface treatment coating preferably contains Cr, ti and/or Zr, zn in a total mass of 1 to 200mg/m per unit area 2 。
The aluminum or aluminum alloy material having the surface treatment film of the present embodiment has excellent corrosion resistance even without performing a coating step of coating the surface treatment film, and has excellent corrosion resistance even when the film is exposed to high temperatures.
The coating step is not particularly limited, and can be performed by a coating method such as water-based coating, solvent coating, powder coating, anionic electrodeposition coating, and cationic electrodeposition coating using a known coating composition.
Examples
The following describes examples of the present invention and comparative examples. The present invention is not limited to the examples.
< aluminum material >
Aluminum die casting material (JIS-ADC 12)
< surface treating agent >
The surface-treating agents of examples 1 to 20 and comparative examples 1 to 3 were obtained by mixing the sources shown in tables 1 to 5 in water, and the ion concentrations thereof were the values shown in table 6. In addition, ammonia water was used as a pH adjuster. In addition, the free fluoride ion concentration was measured using a commercially available fluoride ion meter [ ion electrode: the fluoride ion-combined electrode F-2021 (manufactured by DKK-TOACORPORATION) was used for the measurement.
[ Table 1]
| Reference numerals | Name (R) | Manufacturer(s) |
| A1 | Chromium (III) fluoride trihydrate | Showa chemical preparation |
| A2 | Chromium nitrate nonahydrate (III) | Industrial preparation of Heguang pure chemical |
| A3 | Chromium sulfate (III) | Pure chemical system |
[ Table 2]
| Reference numerals | Name(s) | Manufacturer(s) |
| B1 | Hexafluorozirconic acid | Chemical industrial process of Sentian |
| B2 | Hexafluorotitanic acid | Chemical industry products of Sentian |
[ Table 3]
| Reference numerals | Name(s) | Manufacturer(s) |
| C1 | Zinc nitrate hexahydrate | Industrial preparation of Heguang pure chemical |
| C2 | Zinc sulfate heptahydrate | Industrial preparation of Heguang pure chemical |
| C3 | Zinc chloride | Tokyo chemical industry products |
[ Table 4]
| Reference numerals | Name (R) | Manufacturer(s) |
| D1 | Hydrofluoric acid | Industrial preparation of Heguang pure chemical |
[ Table 5]
| Reference numerals | Name (R) | Manufacturer |
| E1 | Nitric acid | Chemical system of resident friend |
| E2 | Aluminum sulfate nonahydrate | Industrial preparation of Heguang pure chemical |
[ Table 6]
Production of aluminum diecasting Material having surface treatment coating film >
Aluminum die casting materials having a surface treatment film were produced as test pieces 1 to 23 by using the surface treatment agents of examples 1 to 20 and comparative examples 1 to 3.
Specifically, the aluminum die casting material was immersed in an alkali degreaser [ Fine Cleaner 315E (manufactured by trades of trades and corps, japan) in a 20g/L aqueous solution at 60 ℃ for 2 minutes, and then the surface was rinsed with tap water to clean the surface. Then, the surface treatment agent was sprayed on the surface of the aluminum die casting material or the surface thereof at the contact temperature shown in table 6, thereby performing the contact step. Then, the plate was washed with running water (room temperature, 30 seconds) and deionized water (room temperature, 30 seconds). Then, the aluminum die casting materials (test pieces 1 to 23) having the surface treatment film were produced by drying the aluminum die casting materials in an electric oven (80 ℃ C., 5 minutes). The amount of the surface treatment film deposited on each of test pieces 1 to 23 was measured by using a scanning fluorescent X-ray analyzer [ ZSXprimus II (manufactured by Rigaku Corporation) ] for the total mass of Cr, ti, zr, and/or Zn contained in the surface treatment film. The measurement results are shown in Table 7.
[ Table 7]
Further, the following tests were carried out on the test pieces 1 to 23 to evaluate the corrosion resistance of the surface treatment film and the corrosion resistance after heating. The results are shown in Table 8.
< evaluation method >)
< Corrosion resistance >
Test pieces 1 to 23 were subjected to a neutral saline spray test (JIS-Z2371: 2015) for 240 hours. After drying, the proportion of white rust generated on the surface of the test piece was visually measured. The proportion of white rust is the proportion of the area where white rust occurs to the area of the observation site. The evaluation criteria are as follows. The evaluation results are shown in Table 8.
< evaluation criteria >
5 white rust at a ratio of 10% or less
The proportion of the 4 white rust is more than 10-30 percent
3 white rust content of more than 30-50%
2 white rust in a proportion of more than 50 to 70%
1 the proportion of white rust exceeds 70 percent
< Corrosion resistance after heating >
Each test piece was heated in an electric oven (180 ℃ C., 20 minutes) and subjected to a neutral saline spray test (JIS-Z2371: 2015) for 240 hours. After drying, the proportion of white rust generated on the surface of the metal material was visually measured. The proportion of white rust is the proportion of the area where white rust occurs to the area of the observation site. The evaluation criteria are as follows. The evaluation results are shown in Table 8.
< evaluation criteria >
5 white rust at a ratio of 10% or less
The proportion of the 4 white rust is more than 10-30 percent
3 white rust content of more than 30-50%
2 white rust in a proportion of more than 50 to 70%
1 the proportion of white rust exceeds 70 percent
[ Table 8]
Claims (5)
1. A surface treating agent for surface treatment of an aluminum or aluminum alloy material, comprising: trivalent chromium-containing ion A, at least 1 ion B selected from titanium-containing ion and zirconium-containing ion, zinc-containing ion C, free fluoride ion D, and nitrate ion E,
the surface treatment agent contains 5-150 mg/L of trivalent chromium-containing ion A, 20-100 mg/L of at least 1 ion B selected from titanium-containing ions and zirconium-containing ions, and 20-1000 mg/L of zinc-containing ion C,
the surface treatment agent does not contain a compound having an aromatic ring.
2. The surface treating agent according to claim 1, wherein the free fluoride ion D in the surface treating agent has a fluorine equivalent mass concentration of 3 to 100mg/L.
3. The surface treating agent according to claim 1, wherein the content of the ion B in the surface treating agent is in the range of 20 to 700mg/L in terms of metal-equivalent mass concentration.
4. A method for producing an aluminum or aluminum alloy material having a surface treatment film, comprising a contact step in which the surface treatment agent according to any one of claims 1 to 3 is brought into contact with the surface or surfaces of the aluminum or aluminum alloy material.
5. An aluminum or aluminum alloy material having a surface treatment film, which is obtained by the production method according to claim 4.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-065075 | 2018-03-29 | ||
| JP2018065075 | 2018-03-29 | ||
| PCT/JP2019/011666 WO2019188649A1 (en) | 2018-03-29 | 2019-03-20 | Surface-treating agent, and aluminum or aluminum alloy material provided with surface-treated coating film, and method for producing same |
| CN201980021331.4A CN111936666A (en) | 2018-03-29 | 2019-03-20 | Surface treatment agent, aluminum or aluminum alloy material having surface treatment film, and method for producing same |
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| CN201980021331.4A Division CN111936666A (en) | 2018-03-29 | 2019-03-20 | Surface treatment agent, aluminum or aluminum alloy material having surface treatment film, and method for producing same |
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| CN201980021331.4A Pending CN111936666A (en) | 2018-03-29 | 2019-03-20 | Surface treatment agent, aluminum or aluminum alloy material having surface treatment film, and method for producing same |
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| JP (1) | JP6910543B2 (en) |
| KR (1) | KR102500400B1 (en) |
| CN (2) | CN115786897A (en) |
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| WO (1) | WO2019188649A1 (en) |
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| CN114318315A (en) * | 2021-12-30 | 2022-04-12 | 中国石油大学(华东) | Preparation solution of zinc-rich trivalent chromium conversion film and preparation method of conversion film |
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| JP3333611B2 (en) * | 1993-11-09 | 2002-10-15 | 日本パーカライジング株式会社 | Hexavalent chromium-free chemical conversion surface treatment agent for aluminum and aluminum alloys |
| JP2001342575A (en) * | 2000-05-31 | 2001-12-14 | Nippon Dacro Shamrock Co Ltd | Aqueous metal surface treatment agent |
| CA2438718A1 (en) * | 2001-02-16 | 2002-08-29 | Henkel Kommanditgesellschaft Auf Aktien | Process for treating multi-metal articles |
| TWI268965B (en) * | 2001-06-15 | 2006-12-21 | Nihon Parkerizing | Treating solution for surface treatment of metal and surface treatment method |
| KR100412444B1 (en) * | 2001-07-25 | 2003-12-31 | 주식회사 포스코 | The manufacturing methods of automobile fuel tanks using the resin coated steel sheets |
| JP4628726B2 (en) * | 2004-03-02 | 2011-02-09 | 日本表面化学株式会社 | Aluminum member, method for producing the same, and chemical for production |
| US20060180247A1 (en) * | 2005-02-15 | 2006-08-17 | United States Of America As Represented By The Secretary Of The Navy | Process for preparing chromium conversion coatings for iron and iron alloys |
| US20060191599A1 (en) * | 2005-02-15 | 2006-08-31 | The U.S. Of America As Represented By The Secretary Of The Navy | Process for sealing phosphoric acid anodized aluminums |
| US20100032060A1 (en) * | 2005-02-15 | 2010-02-11 | The U.S. Of America As Represented By The Secretary Of The Navy | Process for preparing chromium conversion coatings for magnesium alloys |
| JP4590305B2 (en) | 2005-05-16 | 2010-12-01 | ミリオン化学株式会社 | Non-chromate chemical conversion treatment solution for aluminum alloy and method of chemical conversion treatment of aluminum alloy with this chemical treatment solution |
| JP3784400B1 (en) * | 2005-05-27 | 2006-06-07 | 日本パーカライジング株式会社 | Chemical conversion solution for metal and processing method |
| JP2010013677A (en) * | 2008-07-01 | 2010-01-21 | Nippon Parkerizing Co Ltd | Chemical conversion liquid for metal structure and surface treatment method |
| JP5663490B2 (en) * | 2009-10-30 | 2015-02-04 | 日本パーカライジング株式会社 | Surface treatment agent for laminated metal material and method for producing laminated metal material |
| KR101444569B1 (en) * | 2010-01-29 | 2014-09-24 | 니혼 파커라이징 가부시키가이샤 | Metal surface treatment agent and metal surface treatment method |
| JP2012036469A (en) * | 2010-08-10 | 2012-02-23 | Nippon Hyomen Kagaku Kk | Method for forming protective film on metal and treatment agent for forming protective film |
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| CN111936666A (en) | 2020-11-13 |
| WO2019188649A1 (en) | 2019-10-03 |
| TW201942412A (en) | 2019-11-01 |
| KR20200123811A (en) | 2020-10-30 |
| KR102500400B1 (en) | 2023-02-15 |
| TWI816765B (en) | 2023-10-01 |
| US20210071304A1 (en) | 2021-03-11 |
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