C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/07 (2006.01) C23C 22/23 (2006.01) C23C 22/68 (2006.01) C23C 22/83 (2006.01) C23C 26/00 (2006.01) C23C 28/00 (2006.01) C23F 11/00 (2006.01)
Patent
CA 2404650
A process for producing a treated part made of magnesium and/or a magnesium alloy, characterized by treating a part made of magnesium and/or a magnesium alloy with (A) a surface-treating agent containing a phosphoric acid salt, subsequently treating it with (B) a rust-preventive pretreating agent, optionally further treating the part with (C) a detergent containing a surfactant and at least one member selected among aromatic carboxylic acids and salts of these, and then optionally treating the part with (D) a rust preventive for magnesium.
L'invention concerne un procédé de fabrication d'un élément traité en magnésium et/ou alliage de magnésium, caractérisé en ce que ledit élément est traité au moyen de (A) un agent de surface renfermant des sels d'acide phosphorique, puis au moyen de (B) un agent de prétraitement de prévention de la rouille, et éventuellement au moyen de (C) un détergeant renfermant un tensioactif et au moins un élément sélectionné parmi les acides carboxyliques aromatiques et les sels de ceux-ci, et éventuellement encore au moyen de (D) un agent de prévention de la rouille destiné au magnésium.
Fukumura Kazunori
Sakane Koji
Marks & Clerk
Otsuka Kagaku Kabushiki Kaisha
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