JPS5939511B2 - Gel derusting agent - Google Patents
Gel derusting agentInfo
- Publication number
- JPS5939511B2 JPS5939511B2 JP13570782A JP13570782A JPS5939511B2 JP S5939511 B2 JPS5939511 B2 JP S5939511B2 JP 13570782 A JP13570782 A JP 13570782A JP 13570782 A JP13570782 A JP 13570782A JP S5939511 B2 JPS5939511 B2 JP S5939511B2
- Authority
- JP
- Japan
- Prior art keywords
- rust
- gel
- derusting
- present
- acid
- 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
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 43
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 22
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000008119 colloidal silica Substances 0.000 claims description 9
- -1 Polyoxyethylene Polymers 0.000 claims description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- CQZITAWPXREEND-UHFFFAOYSA-N [C].Cl Chemical compound [C].Cl CQZITAWPXREEND-UHFFFAOYSA-N 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 229950011008 tetrachloroethylene Drugs 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000316887 Saissetia oleae Species 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【発明の詳細な説明】
燐酸を主成分として、これに無機系又は有機系の増粘剤
を加へたクリーム状の脱錆剤は公知であるが、これらの
脱錆剤は脱脂能力がないので錆面に油が付着している様
な場合は予め脱脂の必要があり、又燐酸を主成分とする
ため、脱錆力も弱く、強固なミルスケール（黒皮）や溶
接スケールなどの脱錆は困難であつた。[Detailed description of the invention] Cream-like derusting agents containing phosphoric acid as a main component and an inorganic or organic thickener added thereto are known, but these derusting agents do not have degreasing ability. Therefore, if there is oil adhering to the rusted surface, it is necessary to degrease it in advance.Also, since the main component is phosphoric acid, the rust removal power is weak, so it is difficult to remove rust from strong mill scale (black scale), welding scale, etc. was difficult.
本発明は従来のクリーム状脱錆剤のこの様な欠点を解決
し、優れた脱脂能力と極めて強力な脱錆力を兼ね備へて
、且つ脱錆時に水素脆性を起さず、又脱錆後は錆の再発
を防止出来る理想的なゲル状脱錆剤を提供することを目
的とするものである。The present invention solves these shortcomings of conventional cream-based rust removing agents, has both excellent degreasing ability and extremely strong rust removing power, does not cause hydrogen embrittlement during rust removal, and does not cause rust removal. The second objective is to provide an ideal gel-like derusting agent that can prevent the recurrence of rust.
本発明の構成について説明すると次の如くである。酸成
分としては塩酸水溶液を使用する。その濃度は任意のも
のが使用し得るが、好ましくは７〜２０％（以下全て最
終製品に対する重量％で示す）の濃度が使用される。こ
れに燐酸、硫酸、硝酸の内１種又は２種以上を添加した
ものを使用することも出来る。塩化炭素水素としては、
メチレンクロライド、トリクロルエチレン、トリクロル
エタン、パークロルエチレン等の塩化炭化水素系有機溶
剤の１種又は２種以上の混合物が使用され、その成分量
は任意であるが好ましくは２０〜５０％が使用される。
塩酸水溶液と塩化炭化水素を混合乳化してエマルジョン
を形成せしめるための乳化剤としては任意の界面活性剤
が使用されるが、好ましくはポリオキシエチレンアルキ
ルフェニルエーテル１〜５％が使用される。脱錆時の酸
蝕及び水素脆性の抑制並びに脱錆後の錆の再発生を防止
する目的をもつてＮ−アルキルトリメチレンジアミンの
ポリオキシエチレン付加物を０．５〜３％添加する。こ
の添加量が０．５％以下の場合には上記の効果が充分で
なく、又３％以上となると脱錆速度を低下せしめるので
好ましくない。上記のエマルジョン溶液をゲル化する目
的でコロイダルシリカ粉末の１０〜３０％を混合懸濁せ
しめて、更にＮ−メチルー２−ピロリドンの３〜１０％
を添加混合するとゲル化が起り、良好なチクソトロピー
性を有する極めて安定で透明性のゲルが形成される。The configuration of the present invention will be explained as follows. As the acid component, an aqueous hydrochloric acid solution is used. Any concentration can be used, but preferably a concentration of 7 to 20% (hereinafter all expressed as weight % based on the final product) is used. It is also possible to use one or more of phosphoric acid, sulfuric acid, and nitric acid added thereto. As carbon hydrogen chloride,
One type or a mixture of two or more types of chlorinated hydrocarbon organic solvents such as methylene chloride, trichloroethylene, trichloroethane, perchlorethylene, etc. is used, and the amount of the components is arbitrary, but preferably 20 to 50% is used. Ru.
Any surfactant can be used as an emulsifier for mixing and emulsifying a hydrochloric acid aqueous solution and a chlorinated hydrocarbon to form an emulsion, but preferably 1 to 5% of polyoxyethylene alkylphenyl ether is used. A polyoxyethylene adduct of N-alkyltrimethylene diamine is added in an amount of 0.5 to 3% for the purpose of suppressing acid corrosion and hydrogen embrittlement during derusting and preventing the re-occurrence of rust after derusting. If the amount added is less than 0.5%, the above effect will not be sufficient, and if it is more than 3%, the rust removal rate will be reduced, which is not preferable. In order to gel the above emulsion solution, 10 to 30% of colloidal silica powder is mixed and suspended, and further 3 to 10% of N-methyl-2-pyrrolidone is mixed and suspended.
Upon addition and mixing, gelation occurs and a very stable and transparent gel with good thixotropy is formed.
本発明者はＮ−メチルー２−ピロリドンの添加がコロイ
ダルシリカの不透明な懸濁液を透明でチクソトロピー性
の良好な、極めて安定性の良いゲルを形成せしめると云
う現象を発見して、本発明に応用したものである。上記
のコロイダルシリカ粉末の混入量は１０％以下では、ゲ
ルの形成が不充分であり、又３０％以上ではゲルの流動
性が劣化するので好ましくない。The present inventor has discovered the phenomenon that the addition of N-methyl-2-pyrrolidone causes an opaque suspension of colloidal silica to form a transparent gel with good thixotropy and extremely good stability, and has developed the present invention. This is an application. If the amount of the colloidal silica powder mixed in is less than 10%, gel formation will be insufficient, and if it is more than 30%, the fluidity of the gel will deteriorate, which is not preferable.
Ｎ−メチルー２−ピロリドンの添加量は３％以上及び１
０％以上ではゲルの安定性が劣るので好ましくない。Ｎ
−メチル−２−ピロリドンはコロイダルシリカをゲル化
させる作用ばかりでなく、塩化炭化水素との相乗効果に
より脱脂力を向上する作用もある。次に本発明の効果に
ついて説明する。The amount of N-methyl-2-pyrrolidone added is 3% or more and 1
If it exceeds 0%, the stability of the gel will be poor, which is not preferable. N
-Methyl-2-pyrrolidone not only has the effect of gelling colloidal silica, but also has the effect of improving the degreasing power due to its synergistic effect with chlorinated hydrocarbons. Next, the effects of the present invention will be explained.
本発明のゲル状脱錆剤は機械油や防錆油等の付着した鉄
錆面に塗布すると、その含有する塩化炭化水素とＮ−メ
チル−２−ピロリドンの有機溶剤と界面活性剤との相乗
効果により、速やかに油分を溶解し、同時に鉄錆を極め
て速やかに溶解除去することが出来る。When the gel-like rust remover of the present invention is applied to a rusted iron surface coated with machine oil or anti-corrosion oil, the synergy between the chlorinated hydrocarbon contained therein, the organic solvent of N-methyl-2-pyrrolidone, and the surfactant is activated. As a result, oil can be quickly dissolved and iron rust can be dissolved and removed extremely quickly at the same time.
本発明のゲル状脱錆剤の鉄錆に対する極めて強力な脱錆
力は、全く予期せざる効果であり、その原理は未だ明ら
かに説明することは不可能であるが、塩酸と塩化炭化水
素との共存により、塩酸単独の場合と比較して、その脱
錆力が飛躍的に高まる現象を、本発明者は発見して、本
発明を完成させたのである。The extremely strong derusting ability of the gel-like derusting agent of the present invention against iron rust is a completely unexpected effect, and although it is still impossible to clearly explain its principle, it is possible that hydrochloric acid and chlorinated hydrocarbon The present inventors have discovered a phenomenon in which the coexistence of hydrochloric acid dramatically increases the rust removal ability compared to the case of hydrochloric acid alone, and has completed the present invention.
この現象を実証するために次の実験を行つた。The following experiment was conducted to demonstrate this phenomenon.
１５７０の塩酸のみをコロイダルシリカで増粘してクリ
ーム状となしたものと、同じく１５％の塩酸を含む本発
明のゲル状脱錆剤を予め脱脂した熱延鋼板のミルスケー
ル土に塗布してその脱錆力を比較したところ、塩酸のみ
をコロイダルシリカで増粘したものを塗布４したものは
、ミルスケールの溶解脱錆に５〜１０分間を要したのに
対し、本発明のゲル状脱錆剤を塗布した場合は、僅か３
〜５秒間でミルスケールが完全に溶解し脱錆が完了した
。1570 hydrochloric acid thickened with colloidal silica to form a cream, and the gel-like derusting agent of the present invention, which also contains 15% hydrochloric acid, were applied to the mill scale soil of a hot-rolled steel sheet that had been degreased in advance. A comparison of their rust removal abilities showed that the one coated with only hydrochloric acid thickened with colloidal silica took 5 to 10 minutes to dissolve mill scale and remove rust, whereas the gel-based rust removal of the present invention If a rust agent is applied, only 3
The mill scale was completely dissolved in ~5 seconds, and rust removal was completed.
この実験例でも明らかな様に、本発明のゲル状脱錆剤の
脱錆力は、予期出来ない程に強力であり、脱錆速度は迅
速であり、従来の脱錆剤に比較して全く新規性、進歩性
の高いものである。本発明のゲル状脱錆剤は錆面に油脂
類が付着している場合でも、容易に錆と油脂類を同時に
除去することが出来るばかりでなく、従来塗布型の脱錆
剤では脱錆の困難であつたミルスケールや溶接スケール
等も、極めて容易に迅速に溶解除去することが出来て、
通常の赤錆の場合は殆んど瞬間的に脱錆することが出来
る。As is clear from this experimental example, the rust removing ability of the gel-like rust remover of the present invention is unexpectedly strong, the rust removal speed is rapid, and it is completely compared to conventional rust removers. It is highly novel and inventive. The gel-type rust remover of the present invention not only can easily remove rust and oil at the same time even when oil is attached to a rusted surface, but it also has the ability to remove rust easily with conventional paint-type rust removers. Mill scale, weld scale, etc., which were previously difficult, can be dissolved and removed extremely easily and quickly.
In the case of normal red rust, it can be removed almost instantly.
又本発明のゲル状脱錆剤は脱錆時に鉄素地の酸蝕が完全
に防止され、光沢のある鉄素地面が得られ、且つ水素脆
性も完全に防止される。又脱錆後は布又は紙などで拭き
取ると、鉄素地表面にＮ−アルキルトリメチレンジアミ
ンの単分子皮膜が形成されることにより、撥水性が付与
されて錆の再発生が防止される効果も持つ。以上説明し
た様に本発明のゲル状脱錆剤は従来の塗布型脱錆剤と比
較して、極めて卓越した効果をもち新規性、進歩性の高
いものである。Furthermore, the gel-like rust remover of the present invention completely prevents acid corrosion of the iron base during rust removal, provides a shiny iron base, and completely prevents hydrogen embrittlement. In addition, if you wipe it off with cloth or paper after derusting, a monomolecular film of N-alkyltrimethylene diamine will form on the surface of the iron base, giving it water repellency and preventing the re-occurrence of rust. have As explained above, the gel-like rust remover of the present invention has extremely superior effects and is highly novel and inventive compared to conventional paint-type rust removers.
次に本発明を実施例を挙げて説明する。Next, the present invention will be explained by giving examples.
実施例 １
２０％塩酸水溶液を５００９とメチレンクロライド２０
０ｇをポリオキシエチレンアルキルフエニルエーテル１
５９を乳化剤として混合撹拌してエマルジヨンを形成せ
しめ、これにＮ−アルキルトリメチレンジアミンのポリ
オキシエチレン付加物５９を添加し、コロイダルシリカ
粉末２５０ｇを混合”攪拌して懸濁せしめた後、Ｎ−メ
チル−２ピロリドン３０ｇを添加攪拌すると、ゲル化が
起り半透明でチクソトロピ一性のある安定なゲル状脱錆
剤１，０００９を得た。Example 1 20% hydrochloric acid aqueous solution 5009 and methylene chloride 20
0g to polyoxyethylene alkyl phenyl ether 1
59 was mixed and stirred as an emulsifier to form an emulsion, to which was added polyoxyethylene adduct 59 of N-alkyltrimethylenediamine, 250 g of colloidal silica powder was mixed and stirred, and then N- When 30 g of methyl-2-pyrrolidone was added and stirred, gelation occurred to obtain a stable gel-like derusting agent 1,0009 that was translucent and had thixotropic properties.
このゲノレ状脱錆剤を防錆油の付着した熱間圧延鋼板の
ミルスケール上に塗布したところ、５秒間でミルスケー
ルが溶解脱錆された。又電気溶接による溶接スケールに
塗布したところ、５秒間で溶接スケールが溶解除去され
た。脱錆後はゲル状脱錆剤を布にて拭き取つて室内に放
置したが１０日間以後に於いても錆の再発を認めなかつ
た。実施例 ２
１６７０塩酸３００９と３０％燐酸２００ｇの混酸水溶
液とパークロルエチレン２１０９をポリオキシエチレン
アルホルフエニルエーテル１０９を乳化剤として混合攪
拌してエマルジヨンを形成せしめて、これにＮ−アルキ
ルトトメチレンジアミンのポリオキシエチレン付加物を
３０ｆ！添加し、コロイダルシリカ粉末２２０９を混合
攪拌して懸濁せしめ、Ｎ−メチル−２−ピロリドン３０
９を添加するとゲル化が起り、半透明でチクソトロピ一
性の良好なゲル状脱錆剤１，０００９を得た。When this gelatinous derusting agent was applied onto the mill scale of a hot-rolled steel plate coated with rust preventive oil, the mill scale was dissolved and derusted in 5 seconds. When applied to weld scale produced by electric welding, the weld scale was dissolved and removed in 5 seconds. After derusting, the gel-like derustizer was wiped off with a cloth and left indoors, but no recurrence of rust was observed even after 10 days. Example 2 A mixed acid aqueous solution of 1670 hydrochloric acid 3009 and 30% phosphoric acid 200g and perchlorethylene 2109 were mixed and stirred using polyoxyethylene alphorphenyl ether 109 as an emulsifier to form an emulsion, and N-alkylttomethylene diamine was added to the emulsion. 30f of polyoxyethylene adduct! Added, mixed and stirred colloidal silica powder 2209, suspended N-methyl-2-pyrrolidone 30
When 9 was added, gelation occurred, yielding a gel-like rust removing agent 1,0009 that was translucent and had good thixotropic properties.
このゲル状脱錆剤に、ビツカース硬度５５０に熱処理さ
れたＳＫ−５炭素工具鋼製の水素脆性試１験片を３０分
間接触させた後、この試験片を低速折曲げ破断試験によ
り、水素脆性の評価試験を行なつたが、水素脆性がない
ことが証明された。上記のゲル状脱錆剤を機械油の付着
した冷延鋼板の赤錆上に塗布したところ、瞬間的に赤錆
が溶解除去された。A hydrogen embrittlement test specimen made of SK-5 carbon tool steel heat-treated to a Bitkers hardness of 550 was brought into contact with this gel-like derusting agent for 30 minutes. Evaluation tests were carried out and it was proven that there was no hydrogen embrittlement. When the above-mentioned gel-like rust removing agent was applied to red rust on a cold-rolled steel sheet coated with machine oil, the red rust was instantly dissolved and removed.
脱錆面をテイツシユペーパ一で拭き取り、室内に放置し
たところ７日間後で再発錆を認めなかつた。以上の実施
例で明らかな様に本発明は脱脂能力と極めて強力な脱錆
力とを兼ね備へて、更に酸蝕や水素脆性を防止して、脱
錆後の再発錆も防止する効果をもつた新規な進歩性ある
ゲル状脱錆剤を提供するものであり、工業上有益な発明
である。When the rusted surface was wiped with tissue paper and left indoors, no recurrence of rust was observed after 7 days. As is clear from the above examples, the present invention has both degreasing ability and extremely strong rust removing power, and also has the effect of preventing acid corrosion and hydrogen embrittlement, and preventing recurrence of rust after rust removal. The present invention provides a gel-like derusting agent that is novel and inventive, and is an industrially useful invention.
Claims (1)
又は２種以上を添加し、又は添加しない水溶液と塩化炭
素水素を混合乳化したエマルジョン溶液にＮ−アルキル
トリメチレンジアミンのポリオキシエチレン付加物を０
．５〜３％添加し、コロイダルシリカ粉末を１０〜３０
％を混合して、更にＮ−メチル−２−ピロリドン３〜１
０％を添加することによりゲル化せしめたことを特徴と
するゲル状脱錆剤。1. Polyoxyethylene of N-alkyltrimethylenediamine is added to an emulsion solution made by mixing and emulsifying an aqueous solution containing hydrochloric acid as the main component, with or without the addition of one or more of phosphoric acid, nitric acid, and sulfuric acid, and carbon hydrogen chloride. Addendum 0
．． Add 5-3% and add 10-30% colloidal silica powder.
% and further N-methyl-2-pyrrolidone 3 to 1
A gel-like rust removing agent characterized by being gelled by adding 0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13570782A JPS5939511B2 (en) | 1982-08-05 | 1982-08-05 | Gel derusting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13570782A JPS5939511B2 (en) | 1982-08-05 | 1982-08-05 | Gel derusting agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5925982A JPS5925982A (en) | 1984-02-10 |
| JPS5939511B2 true JPS5939511B2 (en) | 1984-09-25 |
Family
ID=15158000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13570782A Expired JPS5939511B2 (en) | 1982-08-05 | 1982-08-05 | Gel derusting agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939511B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827530B1 (en) * | 2001-07-17 | 2004-05-21 | Commissariat Energie Atomique | PROCESS FOR TREATING A SURFACE WITH A TREATMENT GEL, AND TREATMENT GEL |
| JP5881513B2 (en) * | 2012-04-06 | 2016-03-09 | 三菱重工業株式会社 | Method for removing coating from gas turbine member |
-
1982
- 1982-08-05 JP JP13570782A patent/JPS5939511B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5925982A (en) | 1984-02-10 |
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