| 申请日期 | 2025-06-26 | 申请号 | DE102014212654 |
| 公开（公告）号 | DE102014212654A1 | 公开（公告）日 | 2015-12-31 |
| 公开国别 | DE | 申请人省市代码 | 全国 |
| 申请人 | Vacuumschmelze GmbH Co KG | ||
| 简介 | A cleaning and passivating solution, the rare earth-permanent magnet has, for example is suitable for, comprises at least the following components : -phosphoric acid, -at least one water-soluble salt of nitric acid, -at least an anionic surfactant, -at least a non-ionic surfactant, -at least one alpha-hydroxycarboxylic acid and -at least one water-soluble primary amino-and/or ammonium compound, wherein the cleaning and passivating solution a pH value in the range from 1.5 to 4. | ||
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