JPS6231067B2 - - Google Patents
Info
- Publication number
- JPS6231067B2 JPS6231067B2 JP54104220A JP10422079A JPS6231067B2 JP S6231067 B2 JPS6231067 B2 JP S6231067B2 JP 54104220 A JP54104220 A JP 54104220A JP 10422079 A JP10422079 A JP 10422079A JP S6231067 B2 JPS6231067 B2 JP S6231067B2
- Authority
- JP
- Japan
- Prior art keywords
- chromate
- treatment agent
- film
- present
- lubricating film
- 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.)
- Expired
Links
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 6
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- -1 fatty acid esters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/28—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Lubricants (AREA)
Description
本発明は、潤滑被膜形成性クロメート処理剤に
関するものである。
ボルト等の締結時に確実な軸力を得るために摩
擦係数安定剤が用いられている。これら安定剤と
しては、通常溶剤タイプと水性タイプのものがあ
る。しかしながらこれまで開発されてきた安定剤
のうち、溶剤タイプのものは、樹脂等を溶剤で溶
かしたものであり、表面に塗布した後乾燥しなけ
ればベタついて作業性が悪く、かつ均一塗膜を形
成し難いという欠点があり、また水性タイプのも
のは、塗布が容易で得られる塗膜の均一性も良好
であるが、処理方法によつては耐食性に劣るとい
う欠点を有する。すなわち、クロメート剤を用い
て機械部品等の表面に耐食性のクロメート被膜を
形成することが一般に行われているが、例えば亜
鉛メツキ後水性タイプのクロメート処理剤を塗布
した場合には耐食性が低下するためクロメート後
乾燥工程を設けたり、またはメツキ後一定期間放
置する等の工程が必要である。
このように従来の摩擦安定剤は、溶剤タイプ及
び水性タイプの両者とも完全に満足し得る表面処
理剤とは言い難かつた。
本発明の目的は、上記欠点を解消し、容易にし
かも均一な膜厚を得ることができ、摩擦係数を安
定化し同時に耐食性にも優れた潤滑被膜形成性ク
ロメート処理剤を提供するものである。
即ち、本発明の潤滑被膜形成性クロメート処理
剤は、潤滑被膜を形成するための樹脂成分を処理
剤中10〜25重量％含有し、さらにその樹脂成分を
水に分散させるための界面性剤を0.1〜10ｇ／
、クロメート被膜を形成させるためのクロム酸
塩類を150〜250ｇ／、硝酸10〜100ｇ／及
び／又は硫酸20〜100ｇ／、を含有することを
特徴とする。
本発明クロメート処理剤で用いる樹脂成分とし
ては、アルキツド樹脂、水溶性メラミン樹脂、酢
酸ビニル樹脂であり、特に水性アルキツド樹脂液
が好ましい。また、前記樹脂成分を水に分散させ
るための界面活性剤としては、耐酸性のノニオン
系界面活性剤が好ましく、特にエチレンオキサイ
ドの付加モル数の多いものが良く、ポリアルキレ
ングリコールの脂肪酸エステル、例えばソルビタ
ンモノラウレート、ソルビタモノステアレートで
ある。界面活性剤は、0.1〜10ｇ／、通常0.5
ｇ／の割合で使用される。クロメート被膜形成
のためのクロム酸塩類とは、無水クロム酸又は重
クロム酸ナトリウムである。
更に本発明クロメート処理剤は、硝酸及び／又
は硫酸、更に酢酸等を加えることができる。
上記各成分を配合したクロメート処理剤は、通
常のクロメート剤の範囲で使用されるが、各配合
物の割合は例えば無水クロム酸や重クロム酸ソー
ダが150〜250ｇ／、硝酸が10〜100ｇ／、硫
酸が20〜100ｇ／で使用される。
例えば、亜鉛メツキされたボルトを本発明クロ
メート処理剤に浸漬すると、該処理剤中に含まれ
る樹脂成分によつてゲル状の潤滑被膜が形成さ
れ、ボルトの摩擦係数を安定化するので、確実な
軸力を得ることができる。また、前記樹脂は界面
活性剤により水中に均一に分散されているため得
られる塗膜は均一となる。更に前記潤滑被膜を形
成すると同時に本発明クロメート処理剤中に含有
されるクロム酸塩類によつてクロメート被膜が形
成され、良好な耐食性を示す。
本発明クロメート処理剤において、好ましい樹
脂成分含有率は10〜25重量％である。10重量％以
下であるとゲル状潤滑被膜が薄いため潤滑性に欠
けるという点で好ましくなく、25重量％以上とす
ると形成される潤滑被膜が均一に形成されずに、
またクロメート被膜ができにくいため不利であ
る。また、クロム酸塩類の含有率は150ｇ／〜
250ｇ／が好ましい。150ｇ／以下であつても
また250ｇ／以上であつても良好なクロメート
被膜が得られない。また、界面活性剤は全体の５
％以下、好ましくは３％前後で含有することが好
ましい。
本発明クロメートト処理剤は、スプレーまたは
浸漬によつて行われる。通常のクロメート処理
は、処理液へ10秒位浸漬し取出してすぐ水洗し乾
燥する必要があるが本発明処理剤の場合には全く
その必要がない。
次に本発明クロメート処理剤の好ましい配合例
を挙げる：以下の例で％は重量％を示す。
The present invention relates to a chromate treatment agent capable of forming a lubricating film. Friction coefficient stabilizers are used to obtain reliable axial force when tightening bolts, etc. These stabilizers usually include solvent-based and water-based stabilizers. However, among the stabilizers that have been developed so far, solvent-type stabilizers are made by dissolving resin etc. in a solvent, and if they are not dried after being applied to the surface, they become sticky and have poor workability, and they do not allow for a uniform coating. The aqueous type has the disadvantage that it is difficult to form, and although the water-based type is easy to apply and the resulting coating film has good uniformity, it has the disadvantage that it has poor corrosion resistance depending on the processing method. In other words, it is common practice to use a chromate agent to form a corrosion-resistant chromate film on the surface of mechanical parts, etc. However, for example, if a water-based chromate treatment agent is applied after galvanizing, the corrosion resistance will decrease. It is necessary to carry out a drying process after chromating, or to leave it for a certain period of time after plating. As described above, it is difficult to say that conventional friction stabilizers, both solvent-based and water-based, are completely satisfactory surface treatment agents. An object of the present invention is to provide a lubricating film-forming chromate treatment agent that eliminates the above-mentioned drawbacks, allows easy and uniform film thickness, stabilizes the coefficient of friction, and has excellent corrosion resistance. That is, the lubricating film-forming chromate treatment agent of the present invention contains 10 to 25% by weight of a resin component for forming a lubricating film, and further contains a surfactant to disperse the resin component in water. 0.1~10g/
, containing 150 to 250 g of chromate salts and 10 to 100 g of nitric acid and/or 20 to 100 g of sulfuric acid to form a chromate film. The resin components used in the chromate treatment agent of the present invention include alkyd resins, water-soluble melamine resins, and vinyl acetate resins, and aqueous alkyd resin liquids are particularly preferred. Furthermore, as the surfactant for dispersing the resin component in water, acid-resistant nonionic surfactants are preferred, particularly those with a large number of added moles of ethylene oxide, and fatty acid esters of polyalkylene glycol, such as These are sorbitan monolaurate and sorbitan monostearate. Surfactant: 0.1-10g/, usually 0.5
used at the rate of g/g/. Chromate salts for forming a chromate film are chromic anhydride or sodium dichromate. Furthermore, nitric acid and/or sulfuric acid, acetic acid, etc. can be added to the chromate treatment agent of the present invention. The chromate treatment agent containing the above components is used within the range of ordinary chromate agents, but the proportions of each compound are, for example, chromic anhydride or sodium dichromate at 150 to 250 g/1, and nitric acid at 10 to 100 g/1. , sulfuric acid is used at 20-100g/. For example, when a galvanized bolt is immersed in the chromate treatment agent of the present invention, a gel-like lubricating film is formed by the resin component contained in the treatment agent, which stabilizes the friction coefficient of the bolt. Axial force can be obtained. Furthermore, since the resin is uniformly dispersed in water by a surfactant, the resulting coating film is uniform. Furthermore, at the same time as the lubricating film is formed, a chromate film is formed by the chromate salts contained in the chromate treatment agent of the present invention, and exhibits good corrosion resistance. In the chromate treatment agent of the present invention, the preferred resin component content is 10 to 25% by weight. If it is less than 10% by weight, the gel-like lubricating film will be thin and will lack lubricity, which is undesirable. If it is more than 25% by weight, the lubricating film will not be formed uniformly,
It is also disadvantageous because it is difficult to form a chromate film. In addition, the content of chromates is 150g/~
250g/ is preferred. A good chromate film cannot be obtained even if the amount is less than 150 g/ or more than 250 g/. In addition, the surfactant is 5% of the total
% or less, preferably around 3%. The chromate treatment agent of the present invention is applied by spraying or dipping. In normal chromate treatment, it is necessary to immerse the material in a treatment solution for about 10 seconds, take it out, wash it with water, and dry it immediately, but with the treatment agent of the present invention, this is not necessary at all. Preferred formulation examples of the chromate treatment agent of the present invention are listed below: In the following examples, % indicates weight %.
【表】【table】
【表】
次に本発明クロメート処理剤と従来の処理剤に
よるクロメート被膜を試験し、その性能を評価す
る。結果を下記の表に示す：[Table] Next, chromate coatings formed using the chromate treatment agent of the present invention and a conventional treatment agent were tested to evaluate their performance. The results are shown in the table below:
【表】
上記記載からも明らかなように、本発明クロメ
ート処理剤を用いれば、ゲル状の潤滑被膜とクロ
メート被膜が形成するので、潤滑性及び耐食性を
同時に満足することができ、特に亜鉛メツキ後の
表面に本発明処理剤を用いると、耐食性の面で著
しい改善がみられる。また、従来の如く水洗、乾
燥工程が不要のため、工程上からも非常に有利で
ある等本発明は多くの利点を有するものである。[Table] As is clear from the above description, if the chromate treatment agent of the present invention is used, a gel-like lubricating film and a chromate film are formed, so it is possible to simultaneously satisfy lubricity and corrosion resistance, especially after galvanizing. When the treatment agent of the present invention is applied to the surface of a steel, a significant improvement in corrosion resistance is observed. Furthermore, the present invention has many advantages, such as being extremely advantageous from a process standpoint, since the conventional washing and drying steps are not required.
Claims (1)
潤滑被膜を形成するための樹脂成分を処理剤中10
〜25重量％含有し、さらにその樹脂成分を水に分
散させるための界面活性剤を0.1〜10ｇ／、ク
ロメート被膜を形成させるためのクロム酸塩類を
150〜250ｇ／、硝酸10〜100ｇ／及び／又は
硫酸20〜100ｇ／、を含有することを特徴とす
る潤滑被膜形成性クロメート処理剤。1. In a lubricating film-forming chromate treatment agent,
10% of the resin component in the processing agent to form a lubricating film
Contains ~25% by weight, and further contains 0.1~10g of surfactant to disperse the resin component in water, and chromate salts to form a chromate film.
A lubricating film-forming chromate treatment agent, characterized in that it contains 150 to 250 g/, nitric acid 10 to 100 g/and/or sulfuric acid 20 to 100 g/.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10422079A JPS5629679A (en) | 1979-08-16 | 1979-08-16 | Chromate treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10422079A JPS5629679A (en) | 1979-08-16 | 1979-08-16 | Chromate treating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5629679A JPS5629679A (en) | 1981-03-25 |
| JPS6231067B2 true JPS6231067B2 (en) | 1987-07-06 |
Family
ID=14374868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10422079A Granted JPS5629679A (en) | 1979-08-16 | 1979-08-16 | Chromate treating agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5629679A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60138078A (en) * | 1983-12-27 | 1985-07-22 | Nippon Paint Co Ltd | Pretreating agent for painting of metal |
| JPH02243772A (en) * | 1989-03-17 | 1990-09-27 | Nisshin Steel Co Ltd | Chromating solution ensuring high corrosion resistance for galvanized steel sheet and chromating method |
-
1979
- 1979-08-16 JP JP10422079A patent/JPS5629679A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5629679A (en) | 1981-03-25 |
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