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JP2010070790A - Discoloration preventing treatment method for aluminum-based metal - Google Patents

Discoloration preventing treatment method for aluminum-based metal Download PDF

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JP2010070790A
JP2010070790A JP2008237709A JP2008237709A JP2010070790A JP 2010070790 A JP2010070790 A JP 2010070790A JP 2008237709 A JP2008237709 A JP 2008237709A JP 2008237709 A JP2008237709 A JP 2008237709A JP 2010070790 A JP2010070790 A JP 2010070790A
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acid
aluminum
based metal
discoloration
treatment method
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Akio Maeda
昭朗 前田
Kenji Hosoi
憲二 細井
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Chiyoda Chemical Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a discoloration preventing treatment method for aluminum-based metal which can be used in an acidic region of pH &le;5. <P>SOLUTION: In the discoloration-preventing treatment method for aluminum-based metal, the aluminum-based metal is treated with a hydroxycarboxylic acid compound whose blending amount lies in the range of &ge;0.05 mass%, preferably, in the range of 0.05 to 10 mass%, and more preferably, in the range of 0.05 to 5 mass% and whose carbon number lies in the range of 1 to 30, and which has one or more carboxyl groups and one or more hydroxy groups in an acidic environment whose pH at 25&deg;C is &le;5. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、アルミニウム系金属の変色防止処理法に関し、更に詳しくは、ヒドロキシカルボン酸化合物を使用するアルミニウム系金属の変色防止処理法に関するものである。   The present invention relates to a method for preventing discoloration of an aluminum-based metal, and more particularly to a method for preventing discoloration of an aluminum-based metal using a hydroxycarboxylic acid compound.

金属アルミニウム及びアルミニウム合金のようなアルミニウム系金属の線材、板材、箔や、種々の部品、構造物は、加工油剤や洗浄剤と接触することにより変色する。現在、この変色防止には、アルキルリン酸エステル、リン酸アルカノールアミン塩などのリン系化合物や、ケイ酸ソーダ、珪酸カリウム、ケイ酸リチウムなどのケイ酸塩が使用されている。しかしながら、リン系化合物やケイ酸塩は、金属アルミニウムまたは多種にわたるアルミニウム合金に対して変色防止性能が不十分であり、更に、ケイ酸塩は溶解安定性に欠陥がある。また、近年の環境問題、特に排水処理において、リン系化合物は使用上難点がある。   Aluminum-based metal wires, plates, foils, various parts, and structures such as metallic aluminum and aluminum alloys are discolored by contact with processing oils and cleaning agents. Currently, phosphorus compounds such as alkyl phosphates and alkanolamine phosphates, and silicates such as sodium silicate, potassium silicate, and lithium silicate are used for preventing discoloration. However, phosphorous compounds and silicates have insufficient discoloration prevention performance with respect to metallic aluminum or a wide variety of aluminum alloys, and furthermore, silicates have defects in dissolution stability. In recent environmental problems, particularly in wastewater treatment, phosphorus compounds have difficulty in use.

また、特許文献1には、(A)アルカリ金属水酸化物、アルカリ金属炭酸塩及びアルカリ金属ケイ酸塩から選ばれる少なくとも1種のアルカリ剤0.1〜400g/Lと、(B)重量平均分子量が250〜5000であるマレイン酸ホモポリマー、マレイン酸と他のエチレン性モノマーとのコポリマーであってマレイン酸単位を70モル%以上含有し重量平均分子量が250〜10000である該コポリマー、及びかかるホモポリマーもしくはコポリマーのアルカリ金属塩から選ばれる少なくとも1種のマレイン酸系ポリマー0.1〜100g/Lと、(C)ヒドロキシカルボン酸及びそのアルカリ金属塩から選ばれる少なくしも1種のキレート剤0.1〜100g/Lと、(D)洗浄用界面活性剤0.1〜50g/Lとを水に配合してなり、pH9〜14であるアルミニウム又はアルミニウム合金用洗浄剤が開示されている。   Patent Document 1 includes (A) 0.1 to 400 g / L of at least one alkali agent selected from (A) alkali metal hydroxide, alkali metal carbonate and alkali metal silicate, and (B) weight average. A maleic acid homopolymer having a molecular weight of 250 to 5000, a copolymer of maleic acid and other ethylenic monomers, containing 70 mol% or more of maleic acid units and having a weight average molecular weight of 250 to 10,000, and such 0.1 to 100 g / L of at least one maleic acid polymer selected from alkali metal salts of homopolymers or copolymers, and (C) at least one chelating agent selected from hydroxycarboxylic acids and alkali metal salts thereof 0.1 to 100 g / L and (D) 0.1 to 50 g / L of a surfactant for cleaning are blended in water. Cleaners for aluminum or aluminum alloy is disclosed a PH9~14.

また、アルミニウム系金属に対するエッチング力を向上させるために、ニトリロ三酢酸、1−ヒドロキシ−エチリデン−1,1−ジホスホン酸、ヘプトグルコン酸、グルコン酸、クエン酸、酒石酸などが洗浄液に配合されている。   In addition, nitrilotriacetic acid, 1-hydroxy-ethylidene-1,1-diphosphonic acid, heptogluconic acid, gluconic acid, citric acid, tartaric acid and the like are blended in the cleaning liquid in order to improve the etching power for aluminum-based metals.

特開2006−2229号公報JP 2006-2229 A

しかしながら、上述の特許文献1に記載されているように、従来、アルミニウム系金属用洗浄剤は、pHが9〜14のようなアルカリ領域で使用されており、pHが5以下のような酸性領域で使用できるアルミニウム系金属の変色防止処理法はなかった。また、同様のpH範囲内で、ニトリロ三酢酸、1−ヒドロキシ−エチリデン−1,1−ジホスホン酸、ヘプトグルコン酸、グルコン酸、クエン酸、酒石酸などの成分は、エッチング力が充分ではないとされている。   However, as described in the above-mentioned Patent Document 1, conventionally, the cleaning agent for aluminum-based metal has been used in an alkaline region having a pH of 9 to 14, and an acidic region having a pH of 5 or less. There was no anti-discoloration treatment method for aluminum-based metals that can be used in Also, in the same pH range, components such as nitrilotriacetic acid, 1-hydroxy-ethylidene-1,1-diphosphonic acid, heptogluconic acid, gluconic acid, citric acid, and tartaric acid are considered to have insufficient etching power. Yes.

従って、本発明の目的は、pH5以下の酸性領域で使用することができるアルミニウム系金属の変色防止処理法を提供することにある。   Accordingly, an object of the present invention is to provide a method for preventing discoloration of an aluminum-based metal that can be used in an acidic region having a pH of 5 or less.

即ち、本発明のアルミニウム系金属の変色防止処理法は、25℃のpHが5以下の酸性環境において、ヒドロキシカルボン酸化合物でアルミニウム系金属を処理することを特徴とする。   That is, the method for preventing discoloration of an aluminum-based metal according to the present invention is characterized in that an aluminum-based metal is treated with a hydroxycarboxylic acid compound in an acidic environment having a pH of 5 or less at 25 ° C.

また、本発明のアルミニウム系金属の変色防止処理法は、ヒドロキシカルボン酸化合物が、炭素数1〜30の範囲内にあり、1個以上のカルボキシル基と、1個以上のヒドロキシル基を有する化合物であることを特徴とする。   Moreover, the method for preventing discoloration of an aluminum-based metal according to the present invention is a compound in which the hydroxycarboxylic acid compound is in the range of 1 to 30 carbon atoms and has one or more carboxyl groups and one or more hydroxyl groups. It is characterized by being.

更に、本発明のアルミニウム系金属の変色防止処理法は、ヒドロキシカルボン酸化合物の配合量が、0.05質量%以上であることを特徴とする。   Furthermore, the method for preventing discoloration of an aluminum-based metal according to the present invention is characterized in that the amount of the hydroxycarboxylic acid compound is 0.05% by mass or more.

本発明のアルミニウム系金属の変色防止処理法によれば、25℃でのpHが5以下の酸性環境において、アルミニウム系金属の変色を防止することができる。   According to the method for preventing discoloration of an aluminum-based metal of the present invention, discoloration of the aluminum-based metal can be prevented in an acidic environment having a pH of 5 or less at 25 ° C.

まず、本明細書に記載する述語「アルミニウム系金属」は、金属アルミニウムとアルミニウム合金を総称するものとする。ここで、アルミニウム合金としては、例えばJIS規格品ADC12、AC4CM、A1050、A2024、A3003、A5052、A6063、A7075等を挙げることができる。   First, the predicate “aluminum-based metal” described in this specification is a generic term for metal aluminum and aluminum alloy. Here, examples of the aluminum alloy include JIS standard products ADC12, AC4CM, A1050, A2024, A3003, A5052, A6063, and A7075.

本発明のアルミニウム系金属の変色防止処理法に使用されるヒドロキシカルボン酸化合物としては、炭素数1〜30、好ましくは1〜6で、1個以上、好ましくは1〜6個のカルボキシル基と、1個以上、好ましくは1〜6個のヒドロキシル基をもつ化合物で、構造的に飽和でも不飽和でも良く、直鎖型でも側鎖型でも良く、構造中に環状構造(脂環、芳香環)を含んでいても良く、置換基として、酸素(カルボニル基、エーテル、エステルなど)、窒素(アミノ基、アミド基、ニトロ基、シアノ基など)を含有することができる化合物が好ましい。なお、ヒドロキシカルボン酸化合物は、1種を単独でまたは2種以上を組み合わせて用いることができる。   The hydroxycarboxylic acid compound used in the method for preventing discoloration of an aluminum-based metal of the present invention has 1 to 30 carbon atoms, preferably 1 to 6, and one or more, preferably 1 to 6 carboxyl groups, A compound having 1 or more, preferably 1 to 6 hydroxyl groups, which may be structurally saturated or unsaturated, may be linear or side chain, and has a cyclic structure (alicyclic ring, aromatic ring) in the structure A compound that can contain oxygen (carbonyl group, ether, ester, etc.) and nitrogen (amino group, amide group, nitro group, cyano group, etc.) as a substituent is preferable. In addition, a hydroxycarboxylic acid compound can be used individually by 1 type or in combination of 2 or more types.

上述のようなヒドロキシカルボン酸化合物としては、例えばグリコール酸、乳酸、タルトロン酸、グリセリン酸、ヒドロキシ酪酸、リンゴ酸、酒石酸、シトラマル酸、クエン酸、イソクエン酸、ロイシン酸、メバロン酸、グルコン酸、パントイン酸、リシノール酸、リシネライジン酸、セレブロン酸、キナ酸、シキミ酸、サリチル酸、クレオソート酸、バニリン酸、シリング酸、ピロカテク酸、ゲンチジン酸、オルセリン酸、没食子酸、マンデル酸、ベンジル酸、アトロラクチン酸、メリロト酸、フロレト酸、クマル酸、ウンベル酸、コーヒー酸、フェルラ酸、シナピン酸等が挙げられる。これらの化合物の中でも、タルトロン酸、グリセリン酸、ヒドロキシ酪酸、リンゴ酸、酒石酸、シトラマル酸、クエン酸、イソクエン酸、ロイシン酸、メバロン酸、グルコン酸が特に好ましい。   Examples of the hydroxycarboxylic acid compound as described above include glycolic acid, lactic acid, tartronic acid, glyceric acid, hydroxybutyric acid, malic acid, tartaric acid, citramalic acid, citric acid, isocitric acid, leucine acid, mevalonic acid, gluconic acid, pantoin. Acid, ricinoleic acid, ricinaleic acid, cerebronic acid, quinic acid, shikimic acid, salicylic acid, creosote acid, vanillic acid, syringic acid, pyrocatechuic acid, gentisic acid, orceric acid, gallic acid, mandelic acid, benzylic acid, atrolactic acid , Mellitoic acid, furoretic acid, coumaric acid, umberic acid, caffeic acid, ferulic acid, sinapinic acid and the like. Among these compounds, tartronic acid, glyceric acid, hydroxybutyric acid, malic acid, tartaric acid, citramalic acid, citric acid, isocitric acid, leucine acid, mevalonic acid, and gluconic acid are particularly preferable.

本発明のアルミニウム系金属の変色防止処理法は、上述のようなヒドロキシカルボン酸化合物を、塩酸、硝酸、硫酸、リン酸のような無機酸により調製された酸性洗浄剤に添加することによって、変色防止効果を発揮する。ここで、本発明のアルミニウム系金属の変色防止処理法は、25℃でのpHを5以下、好ましくは0〜3の酸性環境で使用することができる。なお、25℃でのpHが5を超えると、変色防止効果が発揮できないために好ましくない。   In the method for preventing discoloration of an aluminum-based metal of the present invention, discoloration is achieved by adding the hydroxycarboxylic acid compound as described above to an acidic detergent prepared with an inorganic acid such as hydrochloric acid, nitric acid, sulfuric acid, or phosphoric acid. Demonstrate the prevention effect. Here, the method for preventing discoloration of an aluminum-based metal of the present invention can be used in an acidic environment having a pH at 25 ° C. of 5 or less, preferably 0 to 3. In addition, when pH at 25 degreeC exceeds 5, since the discoloration prevention effect cannot be exhibited, it is unpreferable.

また、本発明のアルミニウム系金属の変色防止処理法において、ヒドロキシカルボン酸化合物の配合量は、塩酸、硝酸、硫酸、リン酸のような無機酸によって調製された酸性洗浄剤に対して0.05質量%以上、好ましくは0.05〜10質量%、更に好ましくは0.05〜5質量%の範囲内である。ここで、ヒドロキシカルボン酸化合物の濃度が、0.05質量%未満であると、その配合効果が発現しないために好ましくない。なお、ヒドロキシカルボン酸化合物の濃度の上限は特にないが、10質量%を超えると、配合効果が飽和し、配合量の増加に見合う効果が得られず、コストの上昇につながるために好ましくない。   In the method for preventing discoloration of an aluminum-based metal of the present invention, the amount of the hydroxycarboxylic acid compound is 0.05 with respect to an acidic detergent prepared with an inorganic acid such as hydrochloric acid, nitric acid, sulfuric acid or phosphoric acid. It is in the range of not less than mass%, preferably 0.05 to 10 mass%, more preferably 0.05 to 5 mass%. Here, when the concentration of the hydroxycarboxylic acid compound is less than 0.05% by mass, the blending effect is not exhibited, which is not preferable. There is no particular upper limit on the concentration of the hydroxycarboxylic acid compound, but if it exceeds 10% by mass, the blending effect is saturated, an effect commensurate with the increase in the blending amount cannot be obtained, and this leads to an increase in cost.

上述のような構成を有する本発明のアルミニウム系金属の変色防止処理法は、ヒドロキシカルボン酸化合物を含有する酸性洗浄剤でアルミニウム系金属を処理するものである。処理法としては、例えばアルミニウム系金属をヒドロキシカルボン酸化合物を含有する酸性洗浄剤に浸漬する方法;アルミニウム系金属にヒドロキシカルボン酸化合物を含有する酸性洗浄剤を噴霧する方法;ヒドロキシカルボン酸化合物を含有する酸性洗浄剤を浸透させた繊維や樹脂によりアルミニウム系金属を磨く方法等を用いることができる。   In the method for preventing discoloration of an aluminum-based metal according to the present invention having the above-described configuration, the aluminum-based metal is treated with an acidic detergent containing a hydroxycarboxylic acid compound. Treatment methods include, for example, a method of immersing an aluminum-based metal in an acidic detergent containing a hydroxycarboxylic acid compound; a method of spraying an acidic detergent containing a hydroxycarboxylic acid compound on an aluminum-based metal; containing a hydroxycarboxylic acid compound For example, a method of polishing an aluminum-based metal with a fiber or resin impregnated with an acidic cleaning agent can be used.

以下に実施例を挙げて本発明のアルミニウム系金属の変色防止処理法を更に説明する。
本発明例1〜16
表1に記載するヒドロキシカルボン酸化合物を塩酸によって25℃でのpHを1.5に調整した水溶液100gに溶解し、試験液1〜16を調製した。
次に、アルミニウム鋳造合金[ADC−12(組成:Cu:1.5〜3.5%、Si:9.6〜12.0%、Mg:0.3%以下、Zn:1.0%以下、Ni:0.5%以下、Fe:1.3%以下、Mn:0.3%以下、Sn:0.3%以下、残Al)]の試験片(3×25×43mm)を240番研磨紙にて表面が均一になるように研磨した後、メタノールを用いて研磨粉の除去及び脱脂を行った。得られた試験片を、試験片の半分が変色防止剤に浸漬するように、サンプル管に入れた変色防止剤に浸漬した後、25℃で3時間静置した。その後、試験片を取り出し、浸漬部分の変色具合を観察した。
The method for preventing discoloration of an aluminum-based metal of the present invention will be further described below with reference to examples.
Invention Examples 1 to 16
The hydroxycarboxylic acid compounds described in Table 1 were dissolved in 100 g of an aqueous solution adjusted to pH 1.5 at 25 ° C. with hydrochloric acid to prepare test solutions 1-16.
Next, cast aluminum alloy [ADC-12 (composition: Cu: 1.5 to 3.5%, Si: 9.6 to 12.0%, Mg: 0.3% or less, Zn: 1.0% or less) , Ni: 0.5% or less, Fe: 1.3% or less, Mn: 0.3% or less, Sn: 0.3% or less, the remaining Al)] test piece (3 × 25 × 43 mm) No. 240 After polishing so that the surface was uniform with polishing paper, the polishing powder was removed and degreased using methanol. The obtained test piece was immersed in a discoloration inhibitor placed in a sample tube so that half of the test piece was immersed in the discoloration inhibitor, and then allowed to stand at 25 ° C. for 3 hours. Then, the test piece was taken out and the discoloration state of the immersion part was observed.

Figure 2010070790
Figure 2010070790

表1中、試験結果の欄の○印は、変色なし、△印は、灰色に変色、×印は、黒色に変色をそれぞれ示す。   In Table 1, the ○ mark in the test result column indicates no discoloration, the Δ mark indicates a gray color change, and the X mark indicates a black color change.

比較例1〜9
本発明例と同様の操作にて、比較試験液1〜8と試験片を調製し、本発明例と同様の方法にて試験を行った。得られた試験片の変色具合を本発明品と同様にした観察した。
なお、比較例9は、pH1.5の塩酸水溶液(ブランク)である。
Comparative Examples 1-9
Comparative test solutions 1 to 8 and test pieces were prepared by the same operation as in the present invention example, and the test was performed in the same manner as in the present invention example. The color change of the obtained test piece was observed in the same manner as the product of the present invention.
Comparative Example 9 is a hydrochloric acid aqueous solution (blank) having a pH of 1.5.

比較例10〜13
比較例10〜13に記載の化合物を、48%濃度の水酸化カリウム水溶液で25℃でのpHを10に調整した比較例10〜13の試験液を作製し、本発明例と同様の操作にて、上記試験片に浸漬して同様に試験を行った。得られた試験片の変色具合を本発明品と同様にした観察した。
Comparative Examples 10-13
A test solution of Comparative Examples 10 to 13 was prepared by adjusting the pH of the compound described in Comparative Examples 10 to 13 to 48 with a 48% strength aqueous potassium hydroxide solution at 25 ° C. Then, the test was conducted in the same manner by immersing in the test piece. The color change of the obtained test piece was observed in the same manner as the product of the present invention.

Figure 2010070790
Figure 2010070790

本発明のアルミニウム系金属の変色防止処理法は、アルミニウム系金属の線材、板材、箔や、種々の部品、構造物の変色防止処理に使用することができる。   The method for preventing discoloration of an aluminum-based metal according to the present invention can be used for discoloration-preventing treatment of aluminum-based metal wires, plates, foils, various parts, and structures.

Claims (3)

25℃のpHが5以下の酸性環境において、ヒドロキシカルボン酸化合物でアルミニウム系金属を処理することを特徴とするアルミニウム系金属の変色防止処理法。   A method for preventing discoloration of an aluminum-based metal, comprising treating the aluminum-based metal with a hydroxycarboxylic acid compound in an acidic environment having a pH of 25 or less at 25 ° C. ヒドロキシカルボン酸化合物が、炭素数1〜30の範囲内にあり、1個以上のカルボキシル基と、1個以上のヒドロキシル基を有する化合物である、請求項1記載のアルミニウム系金属の変色防止処理法。   The method for preventing discoloration of an aluminum-based metal according to claim 1, wherein the hydroxycarboxylic acid compound is a compound having 1 to 30 carbon atoms and having one or more carboxyl groups and one or more hydroxyl groups. . ヒドロキシカルボン酸化合物の配合量が、0.05質量%以上である、請求項1または2記載のアルミニウム系金属の変色防止処理法。   The method for preventing discoloration of an aluminum-based metal according to claim 1 or 2, wherein the compounding amount of the hydroxycarboxylic acid compound is 0.05% by mass or more.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018530677A (en) * 2015-10-14 2018-10-18 ヘルムホルツ−ツェントルム ゲーストハハト ツェントルム フュアー マテリアル ウント キュステンフォルシュンク ゲーエムベーハー Corrosion inhibitor composition for magnesium or magnesium alloy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344437A (en) * 1976-10-06 1978-04-21 Asahi Malleable Iron Co Ltd Process for preventing color development of aluminum alloy
JPS61500447A (en) * 1983-11-14 1986-03-13 ヘンケル・コマンデイツトゲゼルシヤフト・アウフ・アクチエン Aluminum corrosion inhibitor
JPS62284090A (en) * 1986-05-30 1987-12-09 Katayama Chem Works Co Ltd Method for preventing tarnish of aluminum-base metal
JPH04202789A (en) * 1990-11-30 1992-07-23 Lion Corp Acidic cleaning composition for aluminum products and method for cleaning aluminum products
JP2007197790A (en) * 2006-01-27 2007-08-09 Daiwa Fine Chemicals Co Ltd (Laboratory) Anti-discoloration composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344437A (en) * 1976-10-06 1978-04-21 Asahi Malleable Iron Co Ltd Process for preventing color development of aluminum alloy
JPS61500447A (en) * 1983-11-14 1986-03-13 ヘンケル・コマンデイツトゲゼルシヤフト・アウフ・アクチエン Aluminum corrosion inhibitor
JPS62284090A (en) * 1986-05-30 1987-12-09 Katayama Chem Works Co Ltd Method for preventing tarnish of aluminum-base metal
JPH04202789A (en) * 1990-11-30 1992-07-23 Lion Corp Acidic cleaning composition for aluminum products and method for cleaning aluminum products
JP2007197790A (en) * 2006-01-27 2007-08-09 Daiwa Fine Chemicals Co Ltd (Laboratory) Anti-discoloration composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018530677A (en) * 2015-10-14 2018-10-18 ヘルムホルツ−ツェントルム ゲーストハハト ツェントルム フュアー マテリアル ウント キュステンフォルシュンク ゲーエムベーハー Corrosion inhibitor composition for magnesium or magnesium alloy
CN110129804A (en) * 2015-10-14 2019-08-16 亥姆霍兹中心盖斯特哈赫特材料及海岸研究中心有限公司 For magnesium or the corrosion inhibitor composition of magnesium alloy

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