WO2017047105A1 - アルミニウム又はアルミニウム合金用化成処理液、化成処理方法及び化成皮膜 - Google Patents
アルミニウム又はアルミニウム合金用化成処理液、化成処理方法及び化成皮膜 Download PDFInfo
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- WO2017047105A1 WO2017047105A1 PCT/JP2016/050011 JP2016050011W WO2017047105A1 WO 2017047105 A1 WO2017047105 A1 WO 2017047105A1 JP 2016050011 W JP2016050011 W JP 2016050011W WO 2017047105 A1 WO2017047105 A1 WO 2017047105A1
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- chemical conversion
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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
- C23C22/60—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 alkaline aqueous solutions with pH greater than 8
- C23C22/66—Treatment of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
Definitions
- the present invention relates to a chemical conversion treatment solution for aluminum or aluminum alloy, a chemical conversion treatment method, and a chemical conversion coating.
- Aluminum-based metal materials are subjected to chemical conversion treatment to form a metal compound film on the surface in order to improve corrosion resistance or rust prevention.
- General chemical conversion treatment includes hexavalent chromium chemical conversion treatment and trivalent chromium chemical conversion treatment.
- the film obtained by the hexavalent chromium chemical conversion treatment has a golden color tone and is excellent in design.
- the hexavalent chromium chemical conversion treatment solution contains components harmful to the environment such as hexavalent chromium and fluorine, and the load on the environment is large.
- the trivalent chromium chemical conversion treatment uses trivalent chromium, the burden on the environment is smaller than that of the hexavalent chromium chemical conversion treatment using hexavalent chromium.
- the film obtained by the trivalent chromium chemical conversion treatment has sufficient corrosion resistance, a film having a golden color tone like that of the hexavalent chromium chemical conversion treatment cannot be obtained, and the design is poor.
- Patent Document 1 a low corrosion resistance aluminum alloy containing copper such as A2024 and A7075 is immersed in boiling water for 5 minutes, then immersed in a permanganate aqueous solution at about 80 ° C. for 2 minutes as a sealing treatment, and further about 80
- a high corrosion-resistant film having a color similar to that of hexavalent chromium conversion treatment can be obtained by immersing in a potassium silicate aqueous solution at 2 ° C for 2 minutes and further immersing in a saturated lime aqueous solution containing lithium nitrate at about 80 ° C for 2 minutes.
- Patent Document 1 has a problem in industrial workability or productivity because of a large number of processing steps and a long series of processing times.
- Patent Document 2 describes that a 4000 series aluminum alloy is immersed in an aqueous solution of pH 6 to 11 containing permanganate ions and lithium ions, or an aqueous solution of pH 12 to 13 containing permanganate ions and silicate ions.
- corrosion resistance equal to or higher than that of a hexavalent chromium chemical conversion coating can be obtained.
- Patent Document 2 does not describe the color tone of the formed chemical conversion coating, and does not show the effect on the low corrosion resistance alloy-based aluminum.
- the coating film is golden and has sufficient corrosion resistance by a simple method like the conventional hexavalent chromium chemical conversion treatment. It is difficult to form.
- the problem to be solved by the present invention is that corrosion resistance and design can be applied to an article whose surface portion is made of aluminum or an aluminum alloy without using a component having a large environmental load such as hexavalent chromium, trivalent chromium, and fluorine. It is providing the chemical conversion surface treatment liquid which can form the chemical conversion film excellent in the property by the process similar to the conventional chemical conversion treatment.
- the present invention relates to a chemical conversion treatment solution, a chemical conversion treatment method, and a chemical conversion coating film for aluminum or aluminum alloy shown in the following items 1 to 7.
- Chemical conversion solution for aluminum alloys 2.
- the chemical conversion treatment liquid according to Item 1 wherein the metal oxygen acid compound is a vanadic acid compound.
- Item 3 The chemical conversion treatment solution according to Item 2, wherein the vanadate compound is sodium metavanadate.
- Item 4 The chemical conversion treatment solution according to any one of Items 1 to 3, wherein the pH is 8.5 to 12.5. 5).
- Item 5. The chemical conversion according to any one of Items 1 to 4, comprising 0.05 to 10 g / L of the permanganate compound as an amount of manganese and 0.05 to 10 g / L of the metal oxyacid compound as a total amount of metal. Treatment liquid. 6). 6.
- the chemical conversion treatment liquid of the present invention a golden chemical conversion film having excellent corrosion resistance and design properties is applied to various objects having a surface formed of aluminum or an aluminum alloy by the same process as the conventional chemical conversion treatment. Can be formed.
- the chemical conversion treatment liquid of the present invention is capable of forming a gold-colored chemical film excellent in corrosion resistance and design properties, especially for a low corrosion resistance aluminum alloy containing copper or the like, and thus formed by a low corrosion resistance aluminum alloy. This is useful for improving the corrosion resistance or rust prevention of the workpiece having the surface. Since the chemical conversion liquid of this invention does not contain harmful components, such as hexavalent chromium, trivalent chromium, and fluorine, it is highly safe.
- the chemical conversion treatment method of the present invention a golden chemical conversion film having excellent corrosion resistance and design properties is applied to various workpieces having a surface formed of aluminum or an aluminum alloy by the same process as the conventional chemical conversion treatment method. Can be formed. Furthermore, the chemical conversion treatment method of the present invention is significantly less polluted by wastewater than the conventional chemical conversion treatment with hexavalent chromate, and is advantageous in terms of environmental pollution.
- chemical conversion treatment solution for aluminum or aluminum alloy
- chemical conversion treatment method the chemical conversion treatment method
- chemical conversion film of the present invention will be described.
- Chemical conversion treatment solution for aluminum or aluminum alloy of the present invention is at least one selected from the group consisting of permanganic acid compounds, vanadic acid compounds, molybdic acid compounds, tungstic acid compounds, zirconic acid compounds and niobic acid compounds.
- a permanganate compound and at least one metal oxyacid compound selected from the group consisting of a vanadate compound, a molybdate compound, a tungstic acid compound, a zirconate compound, and a niobate compound are included.
- the chemical conversion treatment liquid of the present invention contains a permanganate compound as an essential component.
- any water-soluble permanganic acid and a salt thereof can be used without particular limitation.
- examples of such a permanganate compound include permanganate, potassium permanganate, sodium permanganate, ammonium permanganate, magnesium permanganate, and calcium permanganate. These permanganate compounds can be used alone or in combination of two or more.
- sodium permanganate is preferred.
- the permanganic acid compound is an oxygen acid containing 7-valent manganese, and usually exists as a permanganate ion in an aqueous solution. However, a part of it is reduced to manganese (VI) containing 6-valent manganese. It may exist as an acid ion (MnO 4 2 ⁇ ).
- the content of the permanganate compound is usually about 0.05 to 10 g / L as manganese and preferably about 0.35 to 5 g / L.
- the chemical conversion treatment liquid of the present invention contains at least one metal oxyacid compound selected from the group consisting of a vanadate compound, a molybdate compound, a tungstate compound, a zirconate compound and a niobate compound as an essential component.
- vanadic acid compound any water-soluble vanadic acid and its salt can be used without particular limitation.
- vanadic acid which is an oxygen acid containing pentavalent vanadium, a salt thereof, or the like can be used.
- Specific examples thereof include metavanadate (HVO 3 ), sodium metavanadate (NaVO 3 ), potassium vanadate (KVO 3 ), ammonium metavanadate (NH 4 VO 3 ), sodium orthovanadate (Na 3 VO 4 ), ortho Examples thereof include potassium vanadate (K 3 VO 4 ), sodium pyrovanadate (Na 4 V 2 O 7 ), and potassium pyrovanadate (K 4 V 2 O 7 ).
- These vanadic acid compounds can be used alone or in combination of two or more.
- sodium metavanadate is preferable.
- any water-soluble molybdic acid and its salt can be used without particular limitation.
- molybdic acid that is an oxygen acid containing hexavalent molybdenum, a salt thereof, or the like can be used.
- Specific examples thereof include sodium molybdate (Na 2 MoO 4), potassium molybdate (K 2 MoO 4), ammonium molybdate ((NH 4) 6 Mo 7 O 24 ⁇ 4H 2 O), calcium molybdate (CaMoO 4 ), Phosphomolybdic acid (H 3 PMo 12 O 40 ), and the like.
- These molybdate compounds can be used alone or in combination of two or more.
- sodium molybdate is preferable.
- any water-soluble tungstic acid and its salt can be used without particular limitation.
- tungstic acid which is an oxygen acid containing hexavalent tungsten, a salt thereof, or the like can be used.
- Specific examples thereof include sodium tungstate (Na 2 WO 4 ), potassium tungstate (K 2 WO 4 ), ammonium tungstate ((NH 4 ) 2 WO 4 ), sodium paratungstate (Na 10 [W 12 O 46).
- tungstic acid compounds can be used alone or in combination of two or more.
- sodium tungstate is preferable.
- zirconic acid compound if it is water-soluble zirconic acid and its salt, it can be used without limitation.
- zirconic acid compound zirconic acid which is an oxygen acid containing tetravalent zirconium, a salt thereof, or the like can be used. Specific examples thereof include sodium zirconate (Na 2 ZrO 3 ), potassium zirconate (K 2 ZrO 3 ), and calcium zirconate (CaZrO 3 ). These zirconic acid compounds can be used singly or in combination of two or more.
- zirconate compound calcium zirconate is preferable.
- niobic acid compound any water-soluble niobic acid and its salt can be used without particular limitation.
- a niobic acid compound niobic acid which is an oxygen acid containing pentavalent niobium, a salt thereof, and the like can be used.
- Specific examples thereof include sodium niobate (NaNbO 3 ) and potassium niobate (KNbO 3 ).
- NaNbO 3 sodium niobate
- KNbO 3 potassium niobate
- These niobic acid compounds can be used individually by 1 type or in mixture of 2 or more types.
- sodium niobate is preferable.
- the above metal oxyacid compounds can be used singly or in combination of two or more.
- vanadic acid compounds are preferred, and sodium metavanadate is more preferred.
- the content of the metal oxyacid compound is usually about 0.05 to 10 g / L, preferably about 0.35 to 5 g / L, more preferably about 1.5 to 5 g / L as the total amount of metals.
- the content of the metal oxyacid compound is the amount of metal when there is one metal oxyacid compound to be used, and is used when there are two or more metal oxyacid compounds to be used. This is the total amount of all metals.
- the chemical conversion treatment liquid of the present invention needs to be alkaline. By using an alkaline aqueous solution, permanganate ions and metal oxyacid ions are stabilized.
- the chemical conversion treatment solution preferably has a pH of 7.5 or more, more preferably about 8.5 to 12.5.
- a pH adjusting agent can be added to the chemical conversion treatment liquid of the present invention as necessary.
- the pH adjuster is not particularly limited, and various known pH adjusters can be used.
- Examples of the pH adjuster include bases such as sodium hydroxide, potassium hydroxide and aqueous ammonia; inorganic acids such as hydrochloric acid and sulfuric acid; organic acids such as citric acid, lactic acid, acetic acid and succinic acid.
- a pH buffering agent can be added as necessary in order to suppress pH fluctuation and enable stable chemical conversion treatment.
- the pH buffer is not particularly limited, and various known pH buffers can be used.
- the pH buffer include carbonate buffers such as sodium carbonate, potassium carbonate, calcium carbonate, magnesium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate; disodium hydrogen phosphate, sodium dihydrogen phosphate, dihydrogen phosphate Examples thereof include phosphoric acid buffers such as potassium and potassium dihydrogen phosphate; acetic acid buffers such as acetic acid and sodium acetate; sodium tetraborate and the like.
- the chemical conversion treatment liquid of the present invention a golden chemical conversion film having excellent corrosion resistance and design properties is applied to various objects having a surface formed of aluminum or an aluminum alloy by the same process as the conventional chemical conversion treatment. Can be formed.
- the chemical conversion treatment liquid of the present invention is capable of forming a gold-colored chemical film excellent in corrosion resistance and design properties, especially for a low corrosion resistance aluminum alloy containing copper or the like, and thus formed by a low corrosion resistance aluminum alloy. This is useful for improving the corrosion resistance or rust prevention of the workpiece having the surface. Since the chemical conversion liquid of this invention does not contain harmful components, such as hexavalent chromium, trivalent chromium, and fluorine, it is highly safe.
- the treatment method using the chemical conversion treatment liquid of the present invention is not particularly limited, and the chemical conversion treatment liquid may be brought into contact with the treatment surface of the object to be treated.
- Specific treatment methods include a method of immersing an object to be treated in the chemical conversion treatment liquid, a method of spraying the chemical conversion treatment liquid onto the treatment object, and the like.
- the bath temperature can be set to about 20 to 80 ° C.
- the immersion time can be set to about 10 seconds to 10 minutes.
- the specific processing temperature and processing time suitably according to the kind of active ingredient, density
- pretreatment such as washing and activation can be performed on the object to be processed as necessary.
- the cleaning method can be performed according to a conventional method, and electrolytic degreasing or the like can be applied as necessary.
- the treatment object of the chemical conversion treatment method of the present invention is an article in which the surface portion to be treated is formed of aluminum or an aluminum alloy.
- articles such as aluminum plating or aluminum alloy plating film formed on various substrates such as steel sheets, articles subjected to hot-dip aluminum plating, etc. Can do. It does not specifically limit as an aluminum alloy, The various alloys which use aluminum as a main metal component can be used.
- A1000 series quasi-aluminum, A2000 series aluminum alloy containing copper and manganese, A3000 series aluminum-manganese alloy, A4000 series aluminum-silicon alloy, A5000 series aluminum-magnesium alloy, A6000 series aluminum-magnesium- Silicon alloys, A7000 series aluminum-zinc-magnesium alloys, and the like can be applied.
- a golden chemical conversion film similar to the hexavalent chromium chemical conversion treatment is formed on the surface of the object to be processed.
- the chemical conversion treatment method of the present invention can form a golden chemical conversion film excellent in corrosion resistance through the same steps as the hexavalent chromium chemical conversion treatment without passing through many treatment steps. These chemical conversion films can impart excellent corrosion resistance to the aluminum or aluminum alloy to be processed.
- an overcoat composed of an inorganic film or an organic film can be formed as necessary.
- corrosion resistance can be improved more.
- the inorganic film include a film made of colloidal silica, a silicate compound, or the like.
- the organic film include films made of acrylic resin, epoxy resin, urethane resin, polyester resin, polyolefin resin, styrene resin, phenol resin, and the like.
- the overcoat can be formed according to a conventional method. For example, methods such as coating, spraying, and dipping can be employed.
- the thickness of the overcoat is not particularly limited, and can be, for example, about 0.1 to 30 ⁇ m.
- the chemical conversion treatment method of the present invention provides a golden chemical conversion film excellent in corrosion resistance and design for various treatments having a surface formed of aluminum or an aluminum alloy. It can be formed by a similar process. Furthermore, the chemical conversion treatment method of the present invention is significantly less polluted by wastewater than the conventional chemical conversion treatment with hexavalent chromate, and is advantageous in terms of environmental pollution.
- Chemical conversion film The chemical conversion film formed by the above chemical conversion treatment method is gold, and the L * value measured according to the L * a * b * color system is 50 or more, the a * value is ⁇ 10 to 10, and b * is It is preferable that it is 20 or more.
- the L * value measured according to the L * a * b * color system represents the “brightness” of the sample.
- the value of L * is based on the ratio of the light reflectance on a scale of 0 to 100. When the L * value is 0, the sample is black, and when the L * value is 100, the sample is white.
- the a * value represents how green-red the sample is on the -60-60 scale, with -60 being green and 60 being red.
- the b * value represents how blue-yellow the sample is on the -60-60 scale, with -60 as blue and 60 as yellow.
- Example 1 An A1050 plate (size 0.5 ⁇ 50 ⁇ 100 mm) was used as an object to be processed (test piece), and the following pretreatment was performed.
- a 3.0% by mass alkaline degreasing agent “Top Alclean 101” (trade name, manufactured by Okuno Pharmaceutical Co., Ltd.) is heated to 55 ° C., and the test piece is immersed for 1 minute for degreasing treatment, and then for 30 seconds. Washed with water. Moreover, if necessary, 7.0 mass% sodium hydroxide aqueous solution was heated at 55 degreeC, the said test piece was immersed for 1 minute, the etching process was performed, and it washed with water after that for 30 seconds. Next, the test piece was immersed in 10.0% by mass of a smut remover “Top Death Mat N-20” (trade name, manufactured by Okuno Pharmaceutical Co., Ltd.) for about 30 to 60 seconds to remove the smut. Washed with water for 2 seconds.
- Example 1 On the other hand, 1 g / L of sodium metavanadate was added and mixed with stirring in deionized water heated to around 50 ° C. Thereto, 5.4 g / L of sodium permanganate dissolved in deionized water was added and mixed. Finally, manganese ion was 2 g / L, vanadium ion was 0.4 g / L, and pH was 10.5. Thus, the chemical conversion treatment liquid of Example 1 was prepared.
- a chemical conversion film was formed by immersing the above-mentioned pretreated aluminum test piece in the chemical conversion solution of Example 1 at 55 ° C. for 5 minutes.
- Examples 2 to 20 and Comparative Examples 1 to 8 A chemical conversion treatment solution containing the components shown in Tables 1 to 4 was prepared, and the test pieces shown in Tables 1 to 4 that were pretreated in the same manner as in Example 1 were used under the conditions shown in Tables 1 to 4. Chemical conversion treatment was performed. About each test piece after a chemical conversion treatment, the external appearance and corrosion resistance were evaluated by the following method, and bath stability was also evaluated by the following method. The results are shown in Tables 1 to 4.
- L * a * b * value The color tone of the formed chemical conversion film was evaluated by visual observation and L * a * b * value.
- L * a * b * values were measured using a spectrometer CA-3700A (manufactured by Konica Minolta Co., Ltd.) and evaluated according to the following criteria.
- a ... L * value is 50 or more, a * value is -10 to 10, and b * is 20 or more
- C ... L * value is 50 or more, a * value is -10 to 10, and b * Not applicable to 20 or more
- Corrosion resistance A neutral salt spray test (SST) was performed based on JIS Z 2371, and the corrosion resistance after 168 hours was evaluated. The evaluation criteria were set as follows based on “Relationship between corrosion area ratio and rating number” of JIS Z 2371.
- C Corrosion area ratio exceeds 1.00% (rating number 5 or less)
Abstract
Description
1. 過マンガン酸化合物、並びにバナジン酸化合物、モリブデン酸化合物、タングステン酸化合物、ジルコン酸化合物及びニオブ酸化合物からなる群から選択される少なくとも1種の金属酸素酸化合物を含有するアルカリ性水溶液からなる、アルミニウム又はアルミニウム合金用化成処理液。
2. 前記金属酸素酸化合物がバナジン酸化合物である、上記項1に記載の化成処理液。
3. 前記バナジン酸化合物がメタバナジン酸ナトリウムである、上記項2に記載の化成処理液。
4. pHが8.5~12.5である上記項1~3のいずれかに記載の化成処理液。
5. 前記過マンガン酸化合物をマンガン量として0.05~10g/L及び前記金属酸素酸化合物を金属の合計量として0.05~10g/L含有する、上記項1~4のいずれかに記載の化成処理液。
6. 化成処理対象部分がアルミニウム又はアルミニウム合金からなる被処理物を、上記項1~5のいずれかに記載の化成処理液に接触させる、化成処理方法。
7. 上記項6に記載の化成処理方法によって形成された化成皮膜であって、L*a*b*表色系に従って測定されたL*値が50以上、a*値が-10~10、及びb*が20以上である化成皮膜。
本発明のアルミニウム又はアルミニウム合金用化成処理液は、過マンガン酸化合物、並びにバナジン酸化合物、モリブデン酸化合物、タングステン酸化合物、ジルコン酸化合物及びニオブ酸化合物からなる群から選択される少なくとも1種の金属酸素酸化合物を含有するアルカリ性水溶液である。本発明の化成処理液では、過マンガン酸化合物と、バナジン酸化合物、モリブデン酸化合物、タングステン酸化合物、ジルコン酸化合物及びニオブ酸化合物からなる群から選択される少なくとも1種の金属酸素酸化合物とを組み合わせて用い、さらに水溶液をアルカリ性にすることによって、良好な耐食性を有する金色の化成皮膜を形成することが可能となる。
本発明の化成処理液による処理方法については特に限定はなく、該化成処理液を処理対象物の処理面に接触させればよい。具体的な処理方法としては、該化成処理液中に被処理物を浸漬する方法、該化成処理液を被処理物に噴霧する方法等を挙げることができる。
上記化成処理方法によって形成された化成皮膜は金色であり、L*a*b*表色系に従って測定されたL*値が50以上、a*値が-10~10、及びb*が20以上であることが好ましい。
A1050の板(大きさ0.5×50×100mm)を被処理物(試験片)として用い、以下の前処理を行った。
表1~4に記載の成分を含む化成処理液を調製し、実施例1と同様の前処理を行った表1~4に記載の試験片を用いて、表1~4に記載の条件で化成処理を行った。化成処理後の各試験片について、皮膜外観及び耐食性を下記の方法で評価し、浴安定性も下記の方法で評価した。それらの結果を表1~4に示す。
各化成処理液を調製した後、30日間静止放置し、化成処理液の状態を観察し、以下の基準で評価した。
A・・・凝集物又は沈殿が発生しなかった
C・・・凝集物又は沈殿が発生した
形成された化成皮膜の色調を目視及びL*a*b*値によって評価した。L*a*b*値の測定は、分光測定計 CA-3700A(コニカミノルタ株式会社製)を用いて行い、以下の基準で評価した。
A・・・L*値が50以上、a*値が-10~10、及びb*が20以上に該当
C・・・L*値が50以上、a*値が-10~10、及びb*が20以上に非該当
JIS Z 2371に基づいて中性塩水噴霧試験(SST)を行い、168時間後の耐食性を評価した。評価基準は、JIS Z 2371の「腐食面積率とレイティングナンバの関係」に基づき、以下のように設定した。
A・・・腐食面積率0.10%以下(レイティングナンバ9以上)
B・・・腐食面積率0.10%を超え1.00%以下(レイティングナンバ8~6)
C・・・腐食面積率1.00%を超える(レイティングナンバ5以下)
Claims (7)
- 過マンガン酸化合物、並びにバナジン酸化合物、モリブデン酸化合物、タングステン酸化合物、ジルコン酸化合物及びニオブ酸化合物からなる群から選択される少なくとも1種の金属酸素酸化合物を含有するアルカリ性水溶液からなる、アルミニウム又はアルミニウム合金用化成処理液。
- 前記金属酸素酸化合物がバナジン酸化合物である、請求項1に記載の化成処理液。
- 前記バナジン酸化合物がメタバナジン酸ナトリウムである、請求項2に記載の化成処理液。
- pHが8.5~12.5である請求項1~3のいずれかに記載の化成処理液。
- 前記過マンガン酸化合物をマンガン量として0.05~10g/L及び前記金属酸素酸化合物を金属の合計量として0.05~10g/L含有する、請求項1~4のいずれかに記載の化成処理液。
- 化成処理対象部分がアルミニウム又はアルミニウム合金からなる被処理物を、請求項1~5のいずれかに記載の化成処理液に接触させる、化成処理方法。
- 請求項6に記載の化成処理方法によって形成された化成皮膜であって、L*a*b*表色系に従って測定されたL*値が50以上、a*値が-10~10、及びb*が20以上である化成皮膜。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16845979.0A EP3276044A4 (en) | 2015-09-16 | 2016-01-04 | Chemical conversion solution for aluminum or aluminum alloy, chemical conversion method, and chemical conversion film |
CN201680010820.6A CN107250435A (zh) | 2015-09-16 | 2016-01-04 | 铝或铝合金用化成处理液、化成处理方法和化成被膜 |
KR1020177021566A KR101828796B1 (ko) | 2015-09-16 | 2016-01-04 | 알루미늄 또는 알루미늄 합금용 화성 처리액, 화성 처리 방법 및 화성 피막 |
JP2016507320A JP6004217B1 (ja) | 2015-09-16 | 2016-01-04 | アルミニウム又はアルミニウム合金用化成処理液、化成処理方法及び化成皮膜 |
US15/569,224 US20180298497A1 (en) | 2015-09-16 | 2016-01-04 | Chemical conversion solution for aluminum or aluminum alloy, chemical conversion method, and chemical conversion film |
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JP2015183128 | 2015-09-16 | ||
JP2015-183128 | 2015-09-16 |
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US (1) | US20180298497A1 (ja) |
EP (1) | EP3276044A4 (ja) |
KR (1) | KR101828796B1 (ja) |
CN (1) | CN107250435A (ja) |
TW (1) | TW201712154A (ja) |
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Cited By (1)
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CN113897605A (zh) * | 2020-07-06 | 2022-01-07 | Ykk株式会社 | 铝合金制扣紧构件、拉链条及铝合金制扣紧构件的制造方法 |
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CN108727930B (zh) * | 2018-06-08 | 2020-07-28 | 安徽工业大学 | 一种铝合金表面涂装前处理液 |
CN109811335A (zh) * | 2019-04-10 | 2019-05-28 | 深圳市旺鑫精密工业有限公司 | 一种应用于五金表面的非阳极氧化层制作工艺 |
JP7313037B2 (ja) * | 2019-05-08 | 2023-07-24 | 奥野製薬工業株式会社 | アルミニウム材のデスマット処理剤 |
CN111020550A (zh) * | 2019-12-11 | 2020-04-17 | 山东创新金属科技有限公司 | 一种铝合金太阳能电池框架的生产工艺 |
TW202134364A (zh) * | 2020-01-31 | 2021-09-16 | 美商恩特葛瑞斯股份有限公司 | 用於研磨硬質材料之化學機械研磨(cmp)組合物 |
TWI804081B (zh) * | 2021-12-02 | 2023-06-01 | 日商日本製鐵股份有限公司 | Zn系鍍敷鋼板 |
CN114990537B (zh) * | 2022-08-04 | 2022-11-25 | 山东一立动力科技股份有限公司 | 一种铝合金表面磷化处理方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078532A (ja) * | 1973-11-15 | 1975-06-26 | ||
JP2009161856A (ja) * | 2007-12-14 | 2009-07-23 | Neos Co Ltd | 亜鉛金属表面の耐食性皮膜形成方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56136978A (en) * | 1980-03-26 | 1981-10-26 | Showa Alum Ind Kk | Chemically treating solution for aluminum or aluminum alloy |
US6471788B1 (en) * | 1999-12-15 | 2002-10-29 | Lynntech Coatings, Ltd. | Ferrate conversion coatings for metal substrates |
ES2213403T3 (es) * | 1998-12-15 | 2004-08-16 | Lynntech, Inc. | Revestimientos de conversion por ferrato para sustratos metalicos. |
DE19913242C2 (de) * | 1999-03-24 | 2001-09-27 | Electro Chem Eng Gmbh | Chemisch passivierter Gegenstand aus Magnesium oder seinen Legierungen, Verfahren zur Herstellung und seine Verwendung |
US6613390B2 (en) * | 2000-12-19 | 2003-09-02 | United Technologies Corporation | Compound, non-chromium conversion coatings for aluminum alloys |
CN1173074C (zh) * | 2002-04-27 | 2004-10-27 | 上海金属腐蚀与防护技术有限公司 | 镁合金表面多元复合氧化物膜的氧化处理方法 |
CN104894552A (zh) * | 2015-06-19 | 2015-09-09 | 海安县申菱电器制造有限公司 | 一种在铝合金表面形成金黄色膜层的方法 |
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2016
- 2016-01-04 WO PCT/JP2016/050011 patent/WO2017047105A1/ja active Application Filing
- 2016-01-04 KR KR1020177021566A patent/KR101828796B1/ko active IP Right Grant
- 2016-01-04 CN CN201680010820.6A patent/CN107250435A/zh active Pending
- 2016-01-04 US US15/569,224 patent/US20180298497A1/en not_active Abandoned
- 2016-01-04 EP EP16845979.0A patent/EP3276044A4/en not_active Withdrawn
- 2016-01-07 TW TW105100381A patent/TW201712154A/zh unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078532A (ja) * | 1973-11-15 | 1975-06-26 | ||
JP2009161856A (ja) * | 2007-12-14 | 2009-07-23 | Neos Co Ltd | 亜鉛金属表面の耐食性皮膜形成方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3276044A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113897605A (zh) * | 2020-07-06 | 2022-01-07 | Ykk株式会社 | 铝合金制扣紧构件、拉链条及铝合金制扣紧构件的制造方法 |
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Publication number | Publication date |
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EP3276044A1 (en) | 2018-01-31 |
TW201712154A (zh) | 2017-04-01 |
US20180298497A1 (en) | 2018-10-18 |
KR101828796B1 (ko) | 2018-02-13 |
KR20170101986A (ko) | 2017-09-06 |
CN107250435A (zh) | 2017-10-13 |
EP3276044A4 (en) | 2018-08-08 |
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