SCALE REMOVER AND MANUFACTURING METHOD OF METAL MATERIAL

To provide a scale remover which can remove scale while keeping plating film.SOLUTION: A scale remover contains a chelating agent, an organic acid, a fluorochemical and a surfactant. The chelating agent contains an aminocarboxylic acid type chelating agent. The aminocarboxylic acid type chelating ag...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUCHI KENTO, ISHITANI MASAMICHI, ASADA TERUAKI, UENO SHINYUKI, SHIGENAGA TSUTOMU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	To provide a scale remover which can remove scale while keeping plating film.SOLUTION: A scale remover contains a chelating agent, an organic acid, a fluorochemical and a surfactant. The chelating agent contains an aminocarboxylic acid type chelating agent. The aminocarboxylic acid type chelating agent has equal to or more than 2 carboxyalkyl groups binding to nitrogen atom in the molecule. The carboxyalkyl group is structured by linear alkylene groups. Equal to or more than 2 of the carboxyalkyl group are carboxymethyl groups.SELECTED DRAWING: Figure 1B 【課題】メッキ被膜を維持しながらスケールを除去できるスケール除去剤を提供する。【解決手段】キレート剤と、有機酸と、フッ素化合物と、界面活性剤と、を含み、前記キレート剤は、アミノカルボン酸型キレート剤を含み、前記アミノカルボン酸型キレート剤は、分子内に、窒素原子に結合する２以上のカルボキシアルキル基を有し、前記カルボキシアルキル基は、直鎖のアルキレン基により構成されており、前記カルボキシアルキル基の２以上は、カルボキシメチル基である、スケール除去剤。【選択図】図１Ｂ