JPH02166290A - Electrolytic pigmentation solution for aluminum - Google Patents
Electrolytic pigmentation solution for aluminumInfo
- Publication number
- JPH02166290A JPH02166290A JP32182488A JP32182488A JPH02166290A JP H02166290 A JPH02166290 A JP H02166290A JP 32182488 A JP32182488 A JP 32182488A JP 32182488 A JP32182488 A JP 32182488A JP H02166290 A JPH02166290 A JP H02166290A
- Authority
- JP
- Japan
- Prior art keywords
- tin
- hydroxylammonium
- salt
- neutral
- coloring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 10
- 230000019612 pigmentation Effects 0.000 title abstract 5
- 238000004040 coloring Methods 0.000 claims abstract description 37
- 230000007935 neutral effect Effects 0.000 claims abstract description 31
- 229910001432 tin ion Inorganic materials 0.000 claims abstract description 20
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical class ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000008139 complexing agent Substances 0.000 claims abstract description 11
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910000375 tin(II) sulfate Inorganic materials 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 29
- 230000032683 aging Effects 0.000 abstract description 14
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract description 9
- VGYYSIDKAKXZEE-UHFFFAOYSA-L hydroxylammonium sulfate Chemical compound O[NH3+].O[NH3+].[O-]S([O-])(=O)=O VGYYSIDKAKXZEE-UHFFFAOYSA-L 0.000 abstract description 5
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 3
- 229910021626 Tin(II) chloride Inorganic materials 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract 1
- 230000001603 reducing effect Effects 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000010407 anodic oxide Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- BZOVBIIWPDQIHF-UHFFFAOYSA-N 3-hydroxy-2-methylbenzenesulfonic acid Chemical compound CC1=C(O)C=CC=C1S(O)(=O)=O BZOVBIIWPDQIHF-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- QBRSFUSGKXVSPM-UHFFFAOYSA-N hydroxylamine;hydrobromide Chemical compound Br.ON QBRSFUSGKXVSPM-UHFFFAOYSA-N 0.000 description 1
- VYXJGNUQZPDIFM-UHFFFAOYSA-N hydroxylamine;hydroiodide Chemical compound I.ON VYXJGNUQZPDIFM-UHFFFAOYSA-N 0.000 description 1
- XBUFCZMOAHHGMX-UHFFFAOYSA-N hydroxylamine;phosphoric acid Chemical compound ON.ON.ON.OP(O)(O)=O XBUFCZMOAHHGMX-UHFFFAOYSA-N 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- CVNKFOIOZXAFBO-UHFFFAOYSA-J tin(4+);tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Sn+4] CVNKFOIOZXAFBO-UHFFFAOYSA-J 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
アルミニウム（アルミニウム及びアルミニウム合金を総
称する）の電解着色液に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an electrolytic coloring solution for aluminum (a generic term for aluminum and aluminum alloys).
（従来の技術）
従来より、アルミニウムの着色法として、陽極酸化皮膜
処理後に、２価のすずイオンを錯体に形成する錯化剤を
含有し、硫酸第一すずを主成分とする中性（ｐＩ−■６
〜７）の電解着色液（以下「中性ずず浴」）で、電解着
色処理を行うことが一般的に知られている。(Prior art) Conventionally, as a method for coloring aluminum, a neutral (pI -■6
It is generally known to carry out electrolytic coloring treatment with the electrolytic coloring solution (hereinafter referred to as "neutral tin bath") of 7).
そして、上記錯化剤は、２価のすすの錯体な形成させる
ことにより、水酸化第一すずの白色沈澱物の生成を防止
すると共に、浴の老化を防止するためにずず浴に含有さ
れるものであり、 くえん酸、酒石酸、シュウ酸、りん
こ酸、クレゾールスルポン酸、フェノールスルホン酸等
が用いられている。The above-mentioned complexing agent is contained in the tin bath in order to prevent the formation of a white precipitate of stannous hydroxide by forming a complex of divalent soot, and to prevent aging of the bath. Citric acid, tartaric acid, oxalic acid, phosphoric acid, cresol sulfonic acid, phenolsulfonic acid, etc. are used.
（発明が解決しようとする課題）
しかし、中性ずず浴においては、錯化剤の働きが低下す
るので、２価のすずイオンが、大気中の酸素及び？谷中
の酸素により酸化されて、容易に４価のすずイオンとな
る。(Problem to be Solved by the Invention) However, in a neutral tin bath, the action of the complexing agent is reduced, so divalent tin ions are mixed with atmospheric oxygen and ? It is oxidized by oxygen in the valley and easily becomes tetravalent tin ions.
従って、錯化剤の添加；こもかかわらず着色機能が短期
間に低下するので、硫酸第一すずを頻繁に補給してやる
必要があり、浴組成の管理に多大の費用と労力がかかる
。Therefore, despite the addition of a complexing agent, the coloring function deteriorates in a short period of time, so it is necessary to frequently replenish stannous sulfate, which requires a great deal of cost and effort to control the bath composition.
さらに、着色処理条件を適宜補正し−Ｃやる必要がある
ので着色処理の工程管理が非密に複雑になるという問題
点があった。Furthermore, since it is necessary to appropriately correct the coloring treatment conditions and carry out -C, there is a problem that the process control of the coloring treatment becomes inconvenient and complicated.
（発明の目的）
この発明は、上記したような従来の問題点に着目して成
されたものて、 ２価のすずイオンの＃１ヒ中性すず沼
を提供することを目的としている。(Objective of the Invention) The present invention was made by paying attention to the conventional problems as described above, and aims to provide a #1 neutral tin swamp made of divalent tin ions.
［発明の構成］
（課題を解決するための手段）
本発明に係る中性すず浴は、２価のすずイオンを錯体に
形成する錯化剤を含有し、硫酸第一すすを主成分とする
中性の電解着色液に、ヒドロキシルアンモニウム塩を添
加した構成としたことを特徴としている。[Structure of the Invention] (Means for Solving the Problems) The neutral tin bath according to the present invention contains a complexing agent that forms divalent tin ions into a complex, and has stannous sulfate as a main component. It is characterized by having a structure in which a hydroxylammonium salt is added to a neutral electrolytic coloring liquid.
（発明の作用）
本発明に係る中性すず浴に含有するヒドロキシルアンモ
ニウム塩は強還元剤であり、４価ζこ酸化されたすずイ
オンを２価のすずイオンに直ちに還元するため、錯化剤
か再び２価のすずイオンと錯塩を形成して、２価のすず
イオンが４価のすずイオンに酸化されるのを防止する。(Action of the invention) The hydroxylammonium salt contained in the neutral tin bath according to the present invention is a strong reducing agent, and since it immediately reduces tetravalent ζ-oxidized tin ions to divalent tin ions, it is a complexing agent. It also forms a complex salt with divalent tin ions to prevent divalent tin ions from being oxidized to tetravalent tin ions.
従って、本発明に係る中性ずず浴中のヒドロキシルアン
モニウム塩は、錯化剤と協同して、中性ずず浴の老化を
防止するので、中性ずず浴の着色機能を長！ＩＩ］にわ
たり保持する。Therefore, the hydroxylammonium salt in the neutral tin bath according to the present invention works together with the complexing agent to prevent aging of the neutral tin bath, thereby increasing the coloring function of the neutral tin bath! II].
以下、本発明の実施例を具体的に説明する。Examples of the present invention will be specifically described below.
（実施例１）
アルミニウム合金押出形材Ａ６０６３Ｓ （以下「押出
形材」）を１０しｔ％硝酸溶液中に浴温２０°Ｃて５分
間浸漬して脱脂洗浄した後、 ５ｉ＋ｔ％水酸化すＩ・
リウム水溶液中に５０ ’Ｃて７分間浸漬してスマット
除去を行った。(Example 1) An aluminum alloy extruded shape A6063S (hereinafter referred to as "extruded shape") was immersed in a 10% nitric acid solution at a bath temperature of 20°C for 5 minutes to degrease and wash, and then 5i+t% hydroxylated I・
The smut was removed by immersing it in an aqueous solution of aluminum at 50'C for 7 minutes.
この押出形材を１５０ｇ／Ｉ硫酸浴中て、浴温２０°Ｃ
，電流密度Ｉ Ａ ／ ｄ ｎｒの条件で３０分間陽極
酸化皮膜処理を施し、９μｍの陽極酸化皮膜を生成させ
た。This extruded shape was placed in a 150 g/I sulfuric acid bath at a bath temperature of 20°C.
, anodic oxide film treatment was carried out for 30 minutes under the conditions of current density I A / d nr to produce a 9 μm thick anodic oxide film.
次いて、この押出形材を硫酸第一すず１０ｇ／ｌ、 く
えん酸３０ｇ／１． 硫酸ヒドロキシルアンモニウム
１ｇ／Ｉを含有し、 トリエタノールアミンで中性（ｐ
Ｈ６）に調整された浴温２０℃の中性ずず浴中て、電
圧２０Ｖ、通電時間２分間の交流電解着色処理を行った
ところ、押出形材は均一なアンバー色に着色された。Next, this extruded shape was treated with 10 g/l of stannous sulfate and 30 g/l of citric acid. Contains 1 g/I of hydroxylammonium sulfate, neutralized with triethanolamine (p
When AC electrolytic coloring treatment was carried out at a voltage of 20 V and a current application time of 2 minutes in a neutral tin bath with a bath temperature adjusted to H6) at 20° C., the extruded shape was uniformly colored amber.
この中性すず浴を１０日間使用したが、同一着色条件で
、均一な色調を得ることができ、中性ずず浴に硫酸第一
ずずを補給する必要もなく、着色処理条件を補正する必
要もなかった。This neutral tin bath was used for 10 days, and it was possible to obtain a uniform color tone under the same coloring conditions, and there was no need to replenish the neutral tin bath with stannous sulfuric acid, and the coloring processing conditions were corrected. There was no need.
次に、硫酸ヒドロキシルアンモニウムに代えて各種還元
剤を添加した浴を用いて、比較実験を行った結果は、別
表の通りであった。Next, comparative experiments were conducted using baths in which various reducing agents were added instead of hydroxylammonium sulfate, and the results are shown in the attached table.
尚、表中Ｓｎ””６度は、上記各種中性ずず浴を建？谷
した直後の老化する前と、上記各種中性すず浴中ζこ１
５１ ／ １８分の排気能力のあるエアーポンプてエア
ーを８時間吹き込んた老化させた後のＳｎ２”濃度を原
子吸光分析により測定したものであ る。In addition, in the table, Sn"" 6 degrees means that the various neutral water baths mentioned above are constructed. Immediately after troughing and before aging, and in the various neutral tin baths mentioned above.
The Sn2'' concentration was measured by atomic absorption spectrometry after aging by blowing air for 8 hours using an air pump with a pumping capacity of 51/18 minutes.
着色性は、上記老化後の中性ずず浴中て、押出形材を前
記実施例と同様の着色条件で着色処理を行い、上記老化
前の中性すず浴中て着色処理を行った押出形材と着色性
の変化を調査したものである。The colorability was measured by coloring the extruded shape in a neutral tin bath after aging under the same coloring conditions as in the example above, and by coloring the extruded shape in a neutral tin bath before aging. This study investigated changes in shape material and coloring properties.
ちなみに、老化前の各種中性すず浴は、すべて良好な着
色性を示していた。Incidentally, all the various neutral tin baths before aging showed good coloring properties.
（別表）
以」二の結果から２価のすずイオンと錯体を形成する錯
化剤と協同して、すず浴の老化を防止する還元剤として
硫酸ヒドロキシルアンモニウムが最も優れていることが
わかった。(Appended Table) From the results in the following, it was found that hydroxylammonium sulfate is the most excellent reducing agent for preventing aging of tin baths in cooperation with a complexing agent that forms a complex with divalent tin ions.
（実施例２）
アルミニ９１１合金板材ＡＩ １００Ｐ （以下「板材
」）を１０讐１７％硝＃ ｉ８ ｉα中に浴温２０°Ｃ
て５分間浸漬して脱脂洗浄した後、５１．ｒｔ％水酸化
すｌ・リウム水溶液中に５０°Ｃて７分間浸漬してスマ
ット除去を行った。(Example 2) Aluminum 911 alloy plate material AI 100P (hereinafter referred to as "plate material") was placed in 17% nitric acid #i8iα at a bath temperature of 20°C.
After soaking for 5 minutes and degreasing and cleaning, 51. Smut was removed by immersing it in an rt% sulfur/lium hydroxide aqueous solution at 50°C for 7 minutes.
この４反材を１５０ ｇ ／ ｌ硫酸浴中て、浴温２０
°Ｃ，電流密度 １ 、５Ａ ／ ｄ ＋＋１’の条件
で３０分間陽極酸化皮膜処理を施し、 １５μｒｎの陽
極酸化皮膜を生成させた。These four pieces of material were placed in a 150 g/l sulfuric acid bath at a bath temperature of 20
The anodic oxide film was treated for 30 minutes at a current density of 1°C, a current density of 1, and 5 A/d++1' to form an anodic oxide film of 15 μrn.
次いて、この板（オを硫酸第一ずず１０ｇ／ｌ、酒石＃
５０ ｇ’ ／ ｌ、塩酸ヒドロキシルアンモニウム
２ｇ／Ｉを含有し、 トリエタノールアミンで中性（１
） Ｈ７）に調整された浴温２０°Ｃの中性ずず浴中て
、硬性か単位時間に交互に変換するパルス電圧（正側印
可電圧−時開；ｌ０Ｖ−１０ｒｎｓ、負側印可電圧−時
間； ２５ Ｖ −３０ｍ ｓ ）を用いて３分間電
解着色処理を行ったところ、板材は均一な淡フロンス色
に着色された。Next, add 10g/l of sulfuric acid, tartarite #
50 g'/l, containing 2 g/l of hydroxylammonium hydrochloride, neutralized with triethanolamine (1
) In a neutral aqueous bath with a bath temperature of 20°C adjusted to H7), a pulse voltage that alternately converts hardness to unit time (positive side applied voltage - time open; 10 V - 10 rns, negative side applied voltage - When electrolytic coloring treatment was carried out for 3 minutes using a voltage of 25 V - 30 m s, the plate material was uniformly colored in a light Fronce color.
この中性すず浴を１０日間使用したか、同一着色条件で
、均一な色調を得ることができ、中性すず浴に硫酸第一
ずずを補給する必要もなく、着色処理条件を補正する必
要もなかった。After using this neutral tin bath for 10 days or under the same coloring conditions, a uniform color tone can be obtained, and there is no need to replenish stannous sulfate to the neutral tin bath, and it is not necessary to correct the coloring processing conditions. There wasn't.
又、塩酸ヒドロキシルアンモニウムを添加した中性すず
浴について、実施例１の老化試験と同様の条件で老化試
験を行ない、中性すず潅の老化前後で、Ｓｎ”濃度と着
色性の変化について調査したところ、Ｓ ｎ ”ｐ度に
は全く変化が見られず、ざらに、着色性も老化前と変わ
らなかった。In addition, an aging test was conducted on a neutral tin bath to which hydroxylammonium hydrochloride was added under the same conditions as the aging test in Example 1, and changes in Sn'' concentration and coloration were investigated before and after aging of the neutral tin bath. However, no change was observed in the S n ''p degree, and the colorability was roughly the same as before aging.
さらに、 ヒドロキシルアンモニウム塩は、本実施例の
硫酸ヒドロキシルアンモニウム、塩酸ヒドロキシルアン
モニウムに限定されることはなく、りん酸ヒドロキシル
アンモニウム、よう化ヒドロキシルアンモニウム、臭化
ヒトロギシルアンモニウム等を用いてもよい。Furthermore, the hydroxylammonium salt is not limited to hydroxylammonium sulfate and hydroxylammonium hydrochloride in this example, and hydroxylammonium phosphate, hydroxylammonium iodide, hydroxylammonium bromide, and the like may also be used.
ヒドロキシルアンモニウム塩の含有量は、重量比で、す
ず塩の１／１０〜１１５程度てあり、それ以上含有する
とヒドロキシルアンモニウム塩中のアンモニウムが逆に
悪影響を与え、着色の付廻り均一性を著しく阻害し、そ
れ以下の含有量だと４価のすずイオンが多量に混在する
ことになるのて、着色性が悪くなるからである。The content of hydroxylammonium salt is about 1/10 to 115 of that of tin salt in terms of weight ratio, and if it is contained more than that, the ammonium in hydroxylammonium salt will have an adverse effect and will significantly impede the uniformity of coloring. However, if the content is less than that, a large amount of tetravalent tin ions will be present, resulting in poor coloring properties.
又、着色処理方法は、本実施例の交流電解着色処理、パ
ルス電解着色処理に限定されるものではなく、直流陰極
電解着色処理、及び交直重畳電解着色処理等の交流と同
等の効果を有する波形により゛砥解着色処理を行っても
よい。Furthermore, the coloring treatment method is not limited to the AC electrolytic coloring treatment and pulsed electrolytic coloring treatment of this example, but can also be applied to waveforms that have the same effect as AC, such as DC cathode electrolytic coloring treatment and AC/DC superimposed electrolytic coloring treatment. A polishing and coloring process may also be performed.
尚、陽極酸化皮膜処理前の脱脂等の前処理及び陽極酸化
皮膜処理は、本実施例の条件とこ限定されるものではな
い。Note that the pretreatment such as degreasing and the anodic oxide film treatment before the anodic oxide film treatment are not limited to the conditions of this example.
又、ｐ Ｈ調整は、 トリエタノールアミンを用いず、
アンモニア水て行ってよい。In addition, pH adjustment does not use triethanolamine,
You can use ammonia water.
［発明の効果］
以上説明してきたように、この発明のアルミニウムの電
解着色液は、 ２価のすずイオンを錯体に形成する銘化
剤を含有した硫酸第一すずを主成分とする中性の電解着
色液に、ヒドロキシルアンモニウム塩を含有させたので
、ヒドロキシルアンモニウム塩が、４価のすずイオンを
２価のすずイオンに還元すると共に、（Ｂ化剤が、２価
のすずイオンと錯塩を形成して、２価のすずイオンか４
価のすずイオンに１ヒされるのを防止するので、中性す
ず浴の老化が防止され、着色機能が長ｌ！Ｉｉにわたり
保持される。[Effects of the Invention] As explained above, the electrolytic coloring solution for aluminum of the present invention is a neutral coloring solution mainly composed of stannous sulfate containing a marking agent that forms a complex with divalent tin ions. Since the electrolytic coloring solution contains a hydroxylammonium salt, the hydroxylammonium salt reduces tetravalent tin ions to divalent tin ions, and (the B-forming agent forms a complex salt with divalent tin ions). Then, divalent tin ion or 4
Since it prevents the neutral tin bath from being damaged by valent tin ions, aging of the neutral tin bath is prevented and the coloring function is extended! Ii.
従って、中性すず浴ξこ硫酸第一すずを頻繁に補給する
必要がなく、中性ずず浴の管理に多大の費用と労力を必
要とせず、ざらに、着色処理条件を補正する必要もない
ので着色処理条件の工程管理が非常に容易であるという
優れた効果を奏する。Therefore, there is no need to frequently replenish the neutral tin bath with stannous sulfate, there is no need to spend a lot of money and effort to manage the neutral tin bath, and there is no need to roughly correct the coloring treatment conditions. Since there is no coloring process, the process control of the coloring treatment conditions is very easy, which is an excellent effect.
Claims (1)
酸第一すずを主成分とする中性の電解着色液に、ヒドロ
キシルアンモニウム塩を添加して成ることを特徴とする
アルミニウムの電解着色液。Aluminum electrolysis characterized by adding a hydroxylammonium salt to a neutral electrolytic coloring solution containing a complexing agent that forms divalent tin ions into a complex and containing stannous sulfate as a main component. colored liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32182488A JPH0696793B2 (en) | 1988-12-20 | 1988-12-20 | Aluminum electrolytic coloring liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32182488A JPH0696793B2 (en) | 1988-12-20 | 1988-12-20 | Aluminum electrolytic coloring liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02166290A true JPH02166290A (en) | 1990-06-26 |
| JPH0696793B2 JPH0696793B2 (en) | 1994-11-30 |
Family
ID=18136829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32182488A Expired - Lifetime JPH0696793B2 (en) | 1988-12-20 | 1988-12-20 | Aluminum electrolytic coloring liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696793B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1230334A4 (en) * | 1999-11-15 | 2004-08-11 | Arch Spec Chem Inc | Non-corrosive cleaning composition for removing plasma etching residues |
| CN104593835A (en) * | 2015-02-04 | 2015-05-06 | 广东羚光新材料股份有限公司 | Neutral tin plating solution used in electroplating terminal electrodes of chip component |
-
1988
- 1988-12-20 JP JP32182488A patent/JPH0696793B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1230334A4 (en) * | 1999-11-15 | 2004-08-11 | Arch Spec Chem Inc | Non-corrosive cleaning composition for removing plasma etching residues |
| CN104593835A (en) * | 2015-02-04 | 2015-05-06 | 广东羚光新材料股份有限公司 | Neutral tin plating solution used in electroplating terminal electrodes of chip component |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0696793B2 (en) | 1994-11-30 |
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