JP2007138264A - Rust inhibitor for steel surface - Google Patents
Rust inhibitor for steel surface Download PDFInfo
- Publication number
- JP2007138264A JP2007138264A JP2005335458A JP2005335458A JP2007138264A JP 2007138264 A JP2007138264 A JP 2007138264A JP 2005335458 A JP2005335458 A JP 2005335458A JP 2005335458 A JP2005335458 A JP 2005335458A JP 2007138264 A JP2007138264 A JP 2007138264A
- Authority
- JP
- Japan
- Prior art keywords
- rust preventive
- rust
- alkali metal
- nonionic surfactant
- phosphate
- 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.)
- Pending
Links
Abstract
Description
本発明は、鉄鋼表面の防錆処理剤に関する。 The present invention relates to a rust preventive agent for steel surfaces.
鋼板、鋼管、鋼棒、鋼線等の鉄鋼製品を、めっきする場合、めっき前の該製品を高温、多湿な環境に放置すると、発錆して外観を損ない、又めっき皮膜の密着性を阻害する。特に、鉄鋼製品をめっきするに当たって、湿式研削および湿式研磨を行った場合、研磨面が極めて発錆し易くなるために、室内に放置する場合にも防錆処理が必要になるが、従来公知の亜硝酸系防錆処理剤は、防錆効果が不十分であり、研磨後１日程度の短時間で発錆する。また、アルカノールアミン系研削油剤も防錆効果が不十分であり、又これを表面に塗布したままめっきするとめっき皮膜の密着性が低下する。 When plating steel products such as steel plates, steel pipes, steel bars, steel wires, etc., leaving the products before plating in a high temperature and high humidity environment will cause rusting and damage the appearance, and will inhibit the adhesion of the plating film. To do. In particular, when wet grinding and wet polishing are performed in plating steel products, the polished surface is extremely susceptible to rusting, so a rust prevention treatment is required even when left indoors. Nitrite-based antirust treatment agents have insufficient rust prevention effects and rust in a short time of about one day after polishing. Further, the alkanolamine-based grinding oil also has an insufficient rust-preventing effect, and if the plating is performed with the alkanolamine-based grinding oil applied to the surface, the adhesion of the plating film is lowered.
そのため、鉄鋼製品、特に研磨後の鉄鋼製品に処理することにより、研磨後少なくとも１週間以上室内に放置しても、実質的に錆が生じず、又そのままめっき処理してもめっき皮膜の密着性が低下しない防錆処理剤が要望されている。 Therefore, by treating steel products, especially steel products after polishing, even if left in the room for at least one week after polishing, rust does not substantially occur. There is a need for a rust preventive that does not decrease.
本発明の目的は、鉄鋼表面に、防錆効果に優れ、しかもそのままめっき可能な防錆皮膜を形成できる防錆処理剤を提供することにある。 An object of the present invention is to provide a rust preventive treatment agent that can form a rust preventive film that is excellent in rust preventive effect and can be plated as it is on a steel surface.
本発明者は、鋭意研究した結果、アルカリ物質、腐食抑制剤、リン酸塩、無機酸化剤及び非イオン性界面活性剤を含む水溶性防錆液により、上記目的を達成し得ることを見出し、本発明を完成するに至った。 As a result of earnest research, the present inventors have found that the above object can be achieved by a water-soluble rust preventive solution containing an alkaline substance, a corrosion inhibitor, a phosphate, an inorganic oxidizing agent, and a nonionic surfactant, The present invention has been completed.
本発明は、以下の鉄鋼表面の防錆処理剤を提供するものである。 The present invention provides the following rust preventive agent for steel surfaces.
１．アルカリ物質、腐食抑制剤、リン酸塩、無機酸化剤及び非イオン性界面活性剤を含み、残部が水である鉄鋼表面の防錆処理剤。 1. A rust-preventing agent for a steel surface comprising an alkaline substance, a corrosion inhibitor, a phosphate, an inorganic oxidizer and a nonionic surfactant, the balance being water.
２．アルカリ物質が、水酸化ナトリウム、水酸化カリウム、炭酸ナトリウム及び炭酸カリウムからなる群より選ばれる少なくとも一種である上記項１に記載の防錆処理剤。 2. Item 2. The rust preventive agent according to Item 1, wherein the alkaline substance is at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate.
３．腐食抑制剤が、キノリン、キノリン誘導体、飽和環状イミン類、アルデヒド類及びブチンジオールからなる群より選ばれる少なくとも一種である上記項１又は２に記載の防錆処理剤。 3. Item 3. The rust preventive agent according to Item 1 or 2, wherein the corrosion inhibitor is at least one selected from the group consisting of quinoline, quinoline derivatives, saturated cyclic imines, aldehydes, and butynediol.
４．リン酸塩が、正リン酸アンモニウム塩、正リン酸アルカリ金属塩、第３リン酸アンモニウム塩、第３リン酸アルカリ金属塩、ピロリン酸アンモニウム塩、ピロリン酸アルカリ金属塩、トリポリリン酸アンモニウム塩及びトリポリリン酸アルカリ金属塩からなる群より選ばれる少なくとも一種である上記項１〜３のいずれかに記載の防錆処理剤。 4). Phosphate is orthophosphoric ammonium salt, orthophosphoric acid alkali metal salt, tertiary ammonium phosphate salt, tertiary phosphoric acid alkali metal salt, pyrophosphoric acid ammonium salt, pyrophosphoric acid alkali metal salt, tripolyphosphoric acid ammonium salt and tripolyphosphoric acid Item 4. The rust preventive agent according to any one of Items 1 to 3, which is at least one selected from the group consisting of acid alkali metal salts.
５．無機酸化剤が、タングステン酸アルカリ金属塩、モリブデン酸アルカリ金属塩及びセリウム塩からなる群より選ばれる少なくとも一種である上記項１〜４のいずれかに記載の防錆処理剤。 5. Item 5. The rust preventive agent according to any one of Items 1 to 4, wherein the inorganic oxidizing agent is at least one selected from the group consisting of alkali metal tungstates, alkali metal molybdates and cerium salts.
６．非イオン性界面活性剤が、フッ素系非イオン性界面活性剤及び脂肪族アルコール系非イオン性界面活性剤からなる群より選ばれる少なくとも一種である上記１〜５のいずれかに記載の防錆処理剤。 6). The antirust treatment according to any one of 1 to 5 above, wherein the nonionic surfactant is at least one selected from the group consisting of a fluorine-based nonionic surfactant and an aliphatic alcohol-based nonionic surfactant. Agent.
７．アルカリ物質１〜３０重量％、腐食抑制剤０．０５〜２重量％、リン酸塩１〜３０重量％、無機酸化剤０．５〜１０重量％及び非イオン性界面活性剤０．０００１〜１重量％を含み、残部が水である上記項１〜６のいずれかに記載の防錆処理剤。 7). 1-30% by weight of alkaline substance, 0.05-2% by weight of corrosion inhibitor, 1-30% by weight of phosphate, 0.5-10% by weight of inorganic oxidant and 0.0001-1 of nonionic surfactant Item 7. The rust preventive agent according to any one of Items 1 to 6, comprising wt%, the balance being water.
８．ｐＨが、８〜１２である上記項１〜７のいずれかに記載の防錆処理剤。 8). Item 8. The antirust treatment agent according to any one of Items 1 to 7, wherein the pH is 8 to 12.
以下、本発明の防錆処理剤の各成分について、詳述する。 Hereinafter, each component of the rust preventive agent of the present invention will be described in detail.
アルカリ物質は、本発明処理剤のｐＨを調整し、本発明処理剤を鉄鋼表面に吸着し易くする機能を有する。かかるアルカリ物質としては、例えば、水酸化ナトリウム、水酸化カリウム、炭酸ナトリウム、炭酸カリウムなどを挙げることができ、これらの少なくとも一種を用いる。アルカリ物質の濃度は、１〜３０重量％程度であるのが好ましく、５〜１５重量％程度であるのがより好ましい。 The alkaline substance has a function of adjusting the pH of the treatment agent of the present invention and facilitating adsorption of the treatment agent of the present invention on the steel surface. Examples of the alkaline substance include sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate and the like, and at least one of these is used. The concentration of the alkaline substance is preferably about 1 to 30% by weight, and more preferably about 5 to 15% by weight.
腐食抑制剤は、鉄鋼表面に吸着して、安定な防錆皮膜を形成して鉄鋼表面を腐食から守る機能を有する。かかる腐食抑制剤としては、例えば、キノリン；オキシキノリン等のキノリン誘導体；シクロデカメチレンイミン、ピペラジン等の飽和環状イミン類；ベンツアルデヒド、ホルムアルデヒド等のアルデヒド類；ブチンジオール等を挙げることができ、これらの少なくとも一種を用いる。腐食抑制剤の濃度は、０．０００１〜１重量％程度であるのが好ましく、０．０１〜０．５重量％程度であるのがより好ましい。 The corrosion inhibitor has a function of adsorbing to the steel surface to form a stable rust preventive film and protecting the steel surface from corrosion. Examples of such corrosion inhibitors include quinoline; quinoline derivatives such as oxyquinoline; saturated cyclic imines such as cyclodecamethyleneimine and piperazine; aldehydes such as benzaldehyde and formaldehyde; butynediol and the like. At least one of the above is used. The concentration of the corrosion inhibitor is preferably about 0.0001 to 1% by weight, and more preferably about 0.01 to 0.5% by weight.
リン酸塩は、鉄鋼表面の鉄と反応してリン酸塩皮膜を形成させ、長期間酸素を遮断する防錆皮膜となる機能を有する。かかるリン酸塩としては、例えば、正リン酸アンモニウム塩、正リン酸アルカリ金属塩、第３リン酸アンモニウム塩、第３リン酸アルカリ金属塩、ピロリン酸アンモニウム塩、ピロリン酸アルカリ金属塩、トリポリリン酸アンモニウム塩及びトリポリリン酸アルカリ金属塩等を挙げることができ、これらの少なくとも一種を用いる。アルカリ金属塩の場合のアルカリ金属としては、ナトリウム、カリウム等を挙げることができる。リン酸塩の濃度は、１〜３０重量％程度であるのが好ましく、５〜１０重量％程度であるのがより好ましい。 Phosphate has a function of forming a phosphate film by reacting with iron on the steel surface to form a rust preventive film that blocks oxygen for a long period of time. Examples of such phosphate include orthophosphoric ammonium salt, orthophosphoric alkali metal salt, tertiary ammonium phosphate salt, tertiary phosphoric acid alkali metal salt, ammonium pyrophosphate salt, alkali metal pyrophosphate salt, tripolyphosphoric acid Examples thereof include ammonium salts and alkali metal tripolyphosphates, and at least one of these is used. Examples of alkali metals in the case of alkali metal salts include sodium and potassium. The concentration of the phosphate is preferably about 1 to 30% by weight, and more preferably about 5 to 10% by weight.
無機酸化剤は、リン酸塩と鉄鋼表面の鉄との反応を促進してリン酸塩皮膜をより強固にし、又容易にめっきできる防錆皮膜とする機能を有する。かかる無機酸化剤としては、例えば、タングステン酸アルカリ金属塩、モリブデン酸アルカリ金属塩、セリウム塩等を挙げることができ、これらの少なくとも一種を用いる。セリウム塩としては、例えば、硝酸セリウム、硫酸セリウム、塩化セリウム等を挙げることができる。アルカリ金属塩の場合のアルカリ金属としては、ナトリウム、カリウム等を挙げることができる。無機酸化剤の濃度は、０．５〜１０重量％程度であるのが好ましく、１〜５重量％程度であるのがより好ましい。 The inorganic oxidizing agent has a function of promoting a reaction between the phosphate and iron on the steel surface to make the phosphate coating stronger and to make a rust-proof coating that can be easily plated. Examples of the inorganic oxidizing agent include alkali metal tungstate, alkali metal molybdate, and cerium salt, and at least one of these is used. Examples of the cerium salt include cerium nitrate, cerium sulfate, and cerium chloride. Examples of alkali metals in the case of alkali metal salts include sodium and potassium. The concentration of the inorganic oxidant is preferably about 0.5 to 10% by weight, and more preferably about 1 to 5% by weight.
非イオン性界面活性剤は、本発明処理剤の各成分の分散性、溶解性を高め、鉄鋼表面への吸着性を助長して皮膜形成を促進する働きをする。かかる非イオン性界面活性剤としては、例えば、ポリフルオロアルキルアミン等のフッ素系非イオン性界面活性剤；ポリエチレングリコール、ポリエチレングリコールノニルフェニルエーテル等を挙げることができ、これらの少なくとも一種を用いる。界面活性剤としては、これら以外のものも使用することができ、濃度も特に限定されない。非イオン性界面活性剤の濃度としては、通常、０．０００１〜１重量％程度が好ましく、０．０１〜０．１重量％程度がより好ましい。 The nonionic surfactant enhances the dispersibility and solubility of each component of the treatment agent of the present invention and promotes the film formation by promoting the adsorptivity to the steel surface. Examples of such nonionic surfactants include fluorine-based nonionic surfactants such as polyfluoroalkylamine; polyethylene glycol, polyethylene glycol nonylphenyl ether, and the like, and at least one of these is used. As the surfactant, those other than these can be used, and the concentration is not particularly limited. The concentration of the nonionic surfactant is usually preferably about 0.0001 to 1% by weight, and more preferably about 0.01 to 0.1% by weight.
本発明の防錆処理剤は、本発明処理剤の特性を損なわない範囲で、必要に応じて、シラン化合物、有機酸、アミン化合物等の公知の添加剤を含んでいてもよい。 The antirust treatment agent of the present invention may contain a known additive such as a silane compound, an organic acid, an amine compound, etc., as necessary, as long as the properties of the treatment agent of the present invention are not impaired.
本発明の鉄鋼表面の防錆処理剤は、ｐＨ８〜１２程度であるのが、良好な防錆皮膜が形成される点から好ましい。ｐＨ８未満では、良好な防錆皮膜を形成することが困難となる。ｐＨ調整は、アルカリ物質の濃度により、適宜調整できる。 It is preferable that the antirust treatment agent on the steel surface of the present invention has a pH of about 8 to 12 because a good antirust film is formed. If the pH is less than 8, it becomes difficult to form a good rust preventive film. The pH can be adjusted as appropriate depending on the concentration of the alkaline substance.
本発明の防錆処理剤は、アルカリ物質、腐食抑制剤、リン酸塩、無機酸化剤及び非イオン性界面活性剤である必須成分、並びに必要に応じてその他の添加剤を、それぞれ適量、常法に従って、全量が１００重量％となる水中に、溶解又は分散させることにより、容易に調製することができる。 The anticorrosive treatment agent of the present invention contains an alkaline substance, a corrosion inhibitor, a phosphate, an inorganic oxidizer, an essential component that is a nonionic surfactant, and other additives as required, each in an appropriate amount, According to the method, it can be easily prepared by dissolving or dispersing in water in which the total amount becomes 100% by weight.
本発明の防錆処理剤を適用する鉄鋼としては、特に限定されないが、例えば、鋼板、鋼管、鋼棒、鋼線等の各種鉄鋼製品を挙げることができる。特に、鉄鋼製品をめっきするに当たって、湿式研削および湿式研磨を行った後、めっき工程前に室内に放置する場合における防錆処理として、極めて好適である。 The steel to which the rust preventive agent of the present invention is applied is not particularly limited, and examples thereof include various steel products such as a steel plate, a steel pipe, a steel bar, and a steel wire. In particular, when plating steel products, after performing wet grinding and wet polishing, it is extremely suitable as a rust-proofing treatment when left in the room before the plating step.
本発明の防錆処理剤を鉄鋼表面に適用する方法としては、例えば、浸漬、刷毛塗り、スプレー塗装などの一般的な塗布方法を用いることができるが、特に浸漬によるのが好ましい。浸漬により塗布する場合の浸漬時間は、通常、０．１〜１５０分間程度とするのが、好ましい。その塗布量は、乾燥後の膜厚で０．１〜１，０００μｍ程度とするのが、十分な防錆効果を得る点から、好ましく、１〜１００μｍ程度とするのがより好ましい。適用時の温度は、特に限定されず、常温で塗布すればよい。 As a method for applying the rust preventive agent of the present invention to the steel surface, for example, a general coating method such as dipping, brush coating, spray coating or the like can be used, but dipping is particularly preferable. In the case of applying by dipping, the dipping time is usually preferably about 0.1 to 150 minutes. The coating amount is preferably about 0.1 to 1,000 μm in terms of the film thickness after drying, from the viewpoint of obtaining a sufficient rust prevention effect, and more preferably about 1 to 100 μm. The temperature at the time of application is not particularly limited, and it may be applied at room temperature.
本発明の防錆処理剤を塗布した後は、通常、１〜３０分間程度、常温乃至５０℃程度の温度で乾燥させるのが、好ましい。 After applying the antirust treatment agent of the present invention, it is usually preferable to dry at a temperature of about 1 to 30 minutes at a temperature of about room temperature to about 50 ° C.
かくして、鉄鋼表面に、本発明防錆処理剤による防錆皮膜が形成され、優れた防錆効果が発揮される。また、この防錆皮膜上には、そのままの状態で、常法による硬質クロムめっき等、又酸処理後、銅めっき、ニッケルめっき等の各種めっき処理を、直接することができ、これにより、密着性に優れためっき皮膜を得ることができる。 Thus, a rust preventive film by the rust preventive agent of the present invention is formed on the steel surface, and an excellent rust preventive effect is exhibited. In addition, on this rust preventive film, it is possible to directly apply various plating treatments such as hard chrome plating by a conventional method, copper treatment, nickel plating, etc. after acid treatment. A plating film having excellent properties can be obtained.
本発明の防錆処理剤により、鉄鋼表面に、防錆皮膜を形成することにより、通常の倉庫等の室内に放置した場合に、１週間〜３ヶ月以上という長期間の防錆効果が発揮される。 By forming a rust preventive film on the steel surface with the rust preventive agent of the present invention, a long-term rust preventive effect of 1 week to 3 months or more is exhibited when left in a room such as a normal warehouse. The
また、本発明防錆処理剤による防錆皮膜は、その皮膜を形成したままで、各種めっき処理をしても、得られるめっき皮膜の密着性が低下しない。従って、本発明の防錆処理剤は、特に、鉄鋼製品をめっきするに当たって、湿式研削および湿式研磨を行った後、めっきする迄の間、室内に放置する場合における防錆処理用として好適である。 Moreover, the rust preventive film by this invention antirust process agent does not fall the adhesiveness of the plating film obtained even if it performs various plating processes with the film formed. Therefore, the rust preventive agent of the present invention is particularly suitable for rust preventive treatment in the case where the steel product is left indoors after being subjected to wet grinding and wet polishing before being plated. .
以下、実施例及び比較例を挙げて、本発明を更に具体的に説明する。 Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples.
実施例１
水酸化カリウム１５ｇ／Ｌ、ピロリン酸カリウム１００ｇ／Ｌ、タングステン酸ナトリウム１０ｇ／Ｌ、キノリン１．５ｇ／Ｌ及びフッ素系非イオン性界面活性剤（商品名「フタージェント２５１」、（株）ネオス製）０．１ｇ／Ｌを含み、残部が水となるように、各成分を混合して、ｐＨ１１の本発明の防錆処理剤を得た。
Example 1
Potassium hydroxide 15 g / L, potassium pyrophosphate 100 g / L, sodium tungstate 10 g / L, quinoline 1.5 g / L and fluorine-based nonionic surfactant (trade name “Futgent 251”, manufactured by Neos Co., Ltd. ) Each component was mixed so that it might contain 0.1 g / L and the remainder might be water, and the rust preventive agent of this invention of pH 11 was obtained.
実施例２
炭酸ナトリウム３０ｇ／Ｌ、正リン酸アンモニウム８０ｇ／Ｌ、タングステン酸ナトリウム１０ｇ／Ｌ、オキシキノリン１．０ｇ／Ｌ及びフッ素系非イオン性界面活性剤（商品名「フタージェント２５１」、（株）ネオス製）０．１ｇ／Ｌを含み、残部が水となるように、各成分を混合して、ｐＨ１０の本発明の防錆処理剤を得た。
Example 2
Sodium carbonate 30 g / L, orthophosphate ammonium 80 g / L, sodium tungstate 10 g / L, oxyquinoline 1.0 g / L and fluorine-based nonionic surfactant (trade name “Futgent 251”, Neos Co., Ltd. (Product made) Each component was mixed so that it might contain 0.1g / L and the remainder might be water, and the rustproofing agent of this invention of pH10 was obtained.
実施例３
水酸化ナトリウム１５ｇ／Ｌ、トリポリリン酸ナトリウム１００ｇ／Ｌ、モリブデン酸ナトリウム１０ｇ／Ｌ、ブチンジオール０．５ｇ／Ｌ及び非イオン性界面活性剤（ポリエチレングリコールノニルフェニルエーテル）０．１ｇ／Ｌを含み、残部が水となるように、各成分を混合して、ｐＨ１１の本発明の防錆処理剤を得た。
Example 3
Sodium hydroxide 15 g / L, sodium tripolyphosphate 100 g / L, sodium molybdate 10 g / L, butynediol 0.5 g / L and nonionic surfactant (polyethylene glycol nonylphenyl ether) 0.1 g / L, Each component was mixed so that the remainder became water, and the rust preventive agent of this invention of pH11 was obtained.
実施例４
水酸化ナトリウム１５ｇ／Ｌ、ピロリン酸ナトリウム１００ｇ／Ｌ、硝酸セリウム１０ｇ／Ｌ、シクロデカメチレンイミン０．３ｇ／Ｌ及びフッ素系非イオン性界面活性剤（商品名「フタージェント２５１」、（株）ネオス製）０．１ｇ／Ｌを含み、残部が水となるように、各成分を混合して、ｐＨ１１の本発明の防錆処理剤を得た。
Example 4
Sodium hydroxide 15 g / L, sodium pyrophosphate 100 g / L, cerium nitrate 10 g / L, cyclodecamethyleneimine 0.3 g / L and fluorine-based nonionic surfactant (trade name “Futgent 251”, Co., Ltd. Each component was mixed so that 0.1 g / L (made by Neos) was contained, and the remainder was water, and the rust preventive agent of this invention of pH11 was obtained.
実施例５
水酸化ナトリウム１５ｇ／Ｌ、第３リン酸ナトリウム１００ｇ／Ｌ、タングステン酸カリウム１０ｇ／Ｌ、ベンツアルデヒド０．３ｇ／Ｌ及び非イオン性界面活性剤（ポリエチレングリコール）０．１ｇ／Ｌを含み、残部が水となるように、各成分を混合して、ｐＨ１１の本発明の防錆処理剤を得た。
Example 5
Contains 15 g / L sodium hydroxide, 100 g / L tribasic sodium phosphate, 10 g / L potassium tungstate, 0.3 g / L benzaldehyde and 0.1 g / L nonionic surfactant (polyethylene glycol), the balance Each component was mixed so that became water, and the rust preventive agent of this invention of pH11 was obtained.
比較例１
市販の亜硝酸塩系防錆剤Ａを、水で１０倍希釈して、比較用の防錆処理剤を得た。
Comparative Example 1
A commercially available nitrite rust inhibitor A was diluted 10 times with water to obtain a rust inhibitor for comparison.
比較例２
市販の亜硝酸塩系防錆剤Ｂを、水で３０倍希釈して、比較用の防錆処理剤を得た。
Comparative Example 2
A commercially available nitrite rust inhibitor B was diluted 30 times with water to obtain a comparative rust inhibitor.
比較例３
市販のアルカノールアミン系水溶性研削油剤を、水で３０倍希釈して、比較用の防錆処理剤を得た。
Comparative Example 3
A commercially available alkanolamine-based water-soluble grinding oil was diluted 30 times with water to obtain a comparative antirust treatment agent.
防錆効果試験
実施例１〜５及び比較例１〜３の各防錆処理剤の防錆効果試験を、次の様にして、行った。即ち、鉄鋼材料であるＳＳ３４材（３０ｍｍφの丸棒、長さ１５０ｍｍ）を、各処理剤に５分間浸漬し、取り出した後３０℃で５分間乾燥して、厚さ約０．１〜１０μｍの防錆皮膜を形成した。
Antirust effect test The antirust effect test of each antirust agent of Examples 1-5 and Comparative Examples 1-3 was performed as follows. That is, SS34 material (round bar of 30 mmφ, length 150 mm), which is a steel material, is immersed in each treatment agent for 5 minutes, taken out, dried at 30 ° C. for 5 minutes, and has a thickness of about 0.1 to 10 μm. A rust preventive film was formed.
これを室温で、相対湿度４０％の室内に放置し、経日的に、目視により錆の発生の有無を観察し、次の基準で、評価した。◎は錆が全く発生しなかったことを、○は錆が発生したがぬぐうと消えることを、△はわずかに錆が発生したことを、×は錆が発生したことを、それぞれ示す。防錆効果試験の結果を、表１に示す。 This was left in a room at room temperature and a relative humidity of 40%, and the presence or absence of rust was visually observed over time, and evaluated according to the following criteria. “◎” indicates that no rust was generated, “◯” indicates that rust was generated but wiped off, “Δ” indicates that rust was slightly generated, and “×” indicates that rust was generated. Table 1 shows the results of the antirust effect test.
防錆効果試験の結果、実施例１の防錆処理剤中に浸漬した試料は、９０日後も錆の発生が見られず、更に１８０日後でもわずかに変色した程度であった。比較例１〜３の市販防錆処理剤は、いずれも１日後に錆が発生した。腐食抑制剤として、キノリン又はキノリン誘導体を用いた実施例１及び２の防錆処理剤は最も防錆効果が大きかった。腐食抑制剤として、ブチンジオール、シクロデカメチレンイミン又はベンツアルデヒドを用いた実施例３〜５の防錆処理剤は、キノリンを用いた実施例１の防錆処理剤ほどではなかったが、市販品に比して顕著な防錆効果が見られた。 As a result of the rust preventive effect test, the sample immersed in the rust preventive agent of Example 1 showed no rust generation after 90 days, and was slightly discolored after 180 days. As for the commercially available rust preventive agent of Comparative Examples 1-3, rust generate | occur | produced after one day. As the corrosion inhibitor, the rust preventive agent of Examples 1 and 2 using quinoline or a quinoline derivative had the largest rust preventive effect. Although the rust preventive agent of Examples 3-5 using butynediol, cyclodecamethyleneimine or benzaldehyde as the corrosion inhibitor was not as high as the rust preventive agent of Example 1 using quinoline, it was a commercial product. As compared with, a remarkable rust prevention effect was observed.
めっき処理試験
実施例１〜５及び比較例１〜３の各防錆処理剤について、前記防錆効果試験と同様にして、ＳＳ３４材上に防錆皮膜を形成した。この防錆皮膜上のめっき処理試験を、次の様にして、行った。即ち、無水クロム酸２００ｇ／Ｌの水溶液中で、防錆皮膜を形成した試験片を陽極にして、２０Ａ／ｄｍ２で、２０秒間、通常のエッチング処理後、５０℃、電流密度５０Ａ／ｄｍ２で、約１時間クロムめっきして、厚さ３０μｍの硬質クロムめっき膜を形成した。
For each of the rust preventive agents of Plating Test Examples 1 to 5 and Comparative Examples 1 to 3, a rust preventive film was formed on the SS34 material in the same manner as the rust preventive effect test. The plating treatment test on the rust preventive film was conducted as follows. That is, in a 200 g / L chromic anhydride aqueous solution, a test piece on which a rust preventive film was formed was used as an anode, 20 A / dm 2 , 20 seconds after normal etching treatment, 50 ° C., current density 50 A / dm 2 Then, chromium plating was performed for about 1 hour to form a hard chromium plating film having a thickness of 30 μm.
得られためっき皮膜の密着性の判定は、上記で硬質クロムめっきした試験片を、角度９０度に折り曲げて、めっき膜のはく離の有無を確認して、行った。 Judgment of the adhesion of the obtained plating film was performed by bending the test piece plated with hard chrome as described above at an angle of 90 degrees and confirming the presence or absence of peeling of the plating film.
実施例１〜５及び比較例１の各防錆処理剤では、硬質クロムめっき膜のＳＳ３４材からのはく離は認められなかった。比較例２の防錆処理剤に浸漬した場合は、わずかにＳＳ３４材とクロムめっき膜との間ではく離が見られた。比較例３の防錆処理剤に浸漬した場合は、ＳＳ３４材からのクロムめっき膜のはく離がかなり見られ、めっき膜の密着性が劣悪であった。
In each of the antirust treatment agents of Examples 1 to 5 and Comparative Example 1, peeling of the hard chromium plating film from the SS34 material was not recognized. When immersed in the antirust treatment agent of Comparative Example 2, slight separation was observed between the SS34 material and the chromium plating film. When immersed in the rust preventive treatment agent of Comparative Example 3, peeling of the chromium plating film from the SS34 material was considerably observed, and the adhesion of the plating film was poor.
Claims (8)
pH is 8-12, The rustproofing agent in any one of Claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005335458A JP2007138264A (en) | 2005-11-21 | 2005-11-21 | Rust inhibitor for steel surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005335458A JP2007138264A (en) | 2005-11-21 | 2005-11-21 | Rust inhibitor for steel surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2007138264A true JP2007138264A (en) | 2007-06-07 |
Family
ID=38201498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005335458A Pending JP2007138264A (en) | 2005-11-21 | 2005-11-21 | Rust inhibitor for steel surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007138264A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757619A (en) * | 2013-12-26 | 2014-04-30 | 常熟市美尔特金属制品有限公司 | Metal surface treating agent |
| CN103890231A (en) * | 2011-10-25 | 2014-06-25 | 株式会社小松制作所 | Surface treatment method and coating method for steel material, and method for producing machine component |
| KR20190045343A (en) * | 2016-09-15 | 2019-05-02 | 케메탈 게엠베하 | Improved method for corrosion-resistant pretreatment of metal surfaces containing steel, galvanized steel, aluminum, aluminum alloys, magnesium and / or zinc-magnesium alloys |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867834A (en) * | 1994-06-22 | 1996-03-12 | Nippon Paint Co Ltd | Anticorrosive composition for coated or noncoated zinc steel and anticorrosive treatment method |
| JPH08267004A (en) * | 1995-04-03 | 1996-10-15 | Nippon Paint Co Ltd | Rustproofing method and rustproofing composition for zinc coated and uncoated steel |
| WO1997028291A1 (en) * | 1996-02-05 | 1997-08-07 | Nippon Steel Corporation | Surface-treated metallic material with corrosion resistance and surface treatment used therefor |
| JP2002155375A (en) * | 2000-09-08 | 2002-05-31 | Asahi Kagaku Kogyo Co Ltd | Surface treatment agent for galvanized steel sheet having excellent corrosion resistance, treated steel sheet and method for treating steel sheet |
| JP2003328148A (en) * | 2002-05-13 | 2003-11-19 | Mihara Sangyo:Kk | Method of forming protective film on surface of steel and treatment composition therefor |
| WO2004059036A2 (en) * | 2002-12-23 | 2004-07-15 | Basf Aktiengesellschaft | Hydrophobic-hydrophilic compounds for treating metallic surfaces |
| JP2004218071A (en) * | 2002-12-24 | 2004-08-05 | Nippon Paint Co Ltd | Degreasing and chemical conversion coating agent, and surface-treated metal |
| WO2004081128A2 (en) * | 2003-03-13 | 2004-09-23 | Basf Aktiengesellschaft | Nitrogen-containing polymers for metal surface treatment |
| JP2005097702A (en) * | 2003-09-26 | 2005-04-14 | Shimizu:Kk | Substrate treatment liquid for metal coating, and coating method |
| JP2005513275A (en) * | 2001-12-27 | 2005-05-12 | ビーエーエスエフ アクチェンゲゼルシャフト | Polymer derivatives for metal processing |
-
2005
- 2005-11-21 JP JP2005335458A patent/JP2007138264A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867834A (en) * | 1994-06-22 | 1996-03-12 | Nippon Paint Co Ltd | Anticorrosive composition for coated or noncoated zinc steel and anticorrosive treatment method |
| JPH08267004A (en) * | 1995-04-03 | 1996-10-15 | Nippon Paint Co Ltd | Rustproofing method and rustproofing composition for zinc coated and uncoated steel |
| WO1997028291A1 (en) * | 1996-02-05 | 1997-08-07 | Nippon Steel Corporation | Surface-treated metallic material with corrosion resistance and surface treatment used therefor |
| JP2002155375A (en) * | 2000-09-08 | 2002-05-31 | Asahi Kagaku Kogyo Co Ltd | Surface treatment agent for galvanized steel sheet having excellent corrosion resistance, treated steel sheet and method for treating steel sheet |
| JP2005513275A (en) * | 2001-12-27 | 2005-05-12 | ビーエーエスエフ アクチェンゲゼルシャフト | Polymer derivatives for metal processing |
| JP2003328148A (en) * | 2002-05-13 | 2003-11-19 | Mihara Sangyo:Kk | Method of forming protective film on surface of steel and treatment composition therefor |
| WO2004059036A2 (en) * | 2002-12-23 | 2004-07-15 | Basf Aktiengesellschaft | Hydrophobic-hydrophilic compounds for treating metallic surfaces |
| JP2004218071A (en) * | 2002-12-24 | 2004-08-05 | Nippon Paint Co Ltd | Degreasing and chemical conversion coating agent, and surface-treated metal |
| WO2004081128A2 (en) * | 2003-03-13 | 2004-09-23 | Basf Aktiengesellschaft | Nitrogen-containing polymers for metal surface treatment |
| JP2005097702A (en) * | 2003-09-26 | 2005-04-14 | Shimizu:Kk | Substrate treatment liquid for metal coating, and coating method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103890231A (en) * | 2011-10-25 | 2014-06-25 | 株式会社小松制作所 | Surface treatment method and coating method for steel material, and method for producing machine component |
| CN103757619A (en) * | 2013-12-26 | 2014-04-30 | 常熟市美尔特金属制品有限公司 | Metal surface treating agent |
| KR20190045343A (en) * | 2016-09-15 | 2019-05-02 | 케메탈 게엠베하 | Improved method for corrosion-resistant pretreatment of metal surfaces containing steel, galvanized steel, aluminum, aluminum alloys, magnesium and / or zinc-magnesium alloys |
| JP2019533080A (en) * | 2016-09-15 | 2019-11-14 | ケメタル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Improved method for corrosion protection pretreatment of metal surfaces including steel, galvanized steel, aluminum, aluminum alloys, magnesium and / or zinc-magnesium alloys |
| JP7117292B2 (en) | 2016-09-15 | 2022-08-12 | ケメタル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Improved method for corrosion protective pretreatment of metal surfaces including steel, galvanized steel, aluminum, aluminum alloys, magnesium and/or zinc-magnesium alloys |
| KR102490922B1 (en) * | 2016-09-15 | 2023-01-25 | 케메탈 게엠베하 | An improved method for the anti-corrosion pretreatment of metal surfaces containing steel, galvanized steel, aluminum, aluminum alloys, magnesium and/or zinc-magnesium alloys |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5722350B2 (en) | Composition for alkali passivation of zinc surface | |
| US4168983A (en) | Phosphate coating composition | |
| JP7206353B2 (en) | CLEANING COMPOSITIONS FOR METAL SUBSTRATES | |
| US3515600A (en) | Metal treating process and composition | |
| JPH0365436B2 (en) | ||
| CN101278075B (en) | Phosphatising solution with hydrogen peroxide and chelating carboxylic acids | |
| JP5824319B2 (en) | Rust removal / rust prevention agent and removal / rust prevention method | |
| JP3325366B2 (en) | Chemical conversion treatment liquid composition for magnesium-containing metal, chemical conversion treatment method, and chemical conversion-treated material | |
| JP6395376B2 (en) | Water-based chemical conversion treatment agent for aluminum or aluminum alloy, chemical conversion treatment method, and chemical-treated aluminum and aluminum alloy | |
| TW538138B (en) | Process for treating and producing the parts made of magnesium and/or magnesium alloy | |
| JP2007138264A (en) | Rust inhibitor for steel surface | |
| CA2784150A1 (en) | Pretreatment process for aluminum and high etch cleaner used therein | |
| JP2014114505A (en) | Derusting rust-preventive agent and derusting rust prevention method | |
| US4897129A (en) | Corrosion resistant coating | |
| JP2011026661A (en) | Metal surface treatment liquid and surface treatment method for metal material | |
| CN103305854B (en) | Phosphating acid pickling fog inhibitor | |
| US4673445A (en) | Corrosion resistant coating | |
| JP2020202320A (en) | Hydrogen peroxide decomposition inhibitor | |
| JP3765813B2 (en) | anti-rust | |
| JP3765814B2 (en) | Ground treatment solution for metal coating and coating method | |
| JP2004232047A (en) | Treatment agent for forming highly corrosion resistant chromium-free chemical conversion film on aluminum and aluminum alloy, method of forming the chemical conversion film, and aluminum and aluminum alloy with the chemical conversion film formed | |
| US5534177A (en) | Compositions useful for removing products of metal corrosion | |
| JPS6179782A (en) | Treatment of phosphate | |
| JP3765812B2 (en) | Chemical conversion solution for aluminum and aluminum alloy | |
| JP6510122B1 (en) | Method for preparing chemical conversion treated substrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080703 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110628 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110705 |
|
| A02 | Decision of refusal |
Effective date: 20120207 Free format text: JAPANESE INTERMEDIATE CODE: A02 |