发明授权
US07018486B2 Corrosion resistant trivalent chromium phosphated chemical conversion coatings 有权
耐腐蚀三价铬磷化化学转化膜

Corrosion resistant trivalent chromium phosphated chemical conversion coatings
摘要:
An acidic aqueous solution containing a water soluble trivalent chromium compound is provided with a additive for improving corrosion resistance and reducing precipitation of trivalent chromium over time. A suitable additive is nitrilotris (methylene) triphosphonic acid (NTMP).
信息查询
0/0