• 专利标题:   Normal temperature aluminum bright acid washing liquid comprises primary primary acid washing liquid and secondary acid washing liquid comprising nitric acid, citric acid, sulfamic acid, ammonium molybdate, brightening agent, corrosion inhibitor and quaternary ammonium salt modified graphene oxide.
  • 专利号:   CN115110086-A
  • 发明人:   LIN T
  • 专利权人:   NINGBO JIHAI METAL TECHNOLOGY CO LTD
  • 国际专利分类:   C23C022/40, C23G001/06, C23G001/12
  • 专利详细信息:   CN115110086-A 27 Sep 2022 C23G-001/12 202299 Chinese
  • 申请详细信息:   CN115110086-A CN10918611 01 Aug 2022
  • 优先权号:   CN10918611

▎ 摘  要

NOVELTY - Normal temperature 6061 aluminum bright acid washing liquid comprises primary acid washing liquid and secondary acid washing liquid. The primary acid washing liquid comprises 0.5-1 wt.% nitric acid, 1-2 wt.% citric acid, 0.3-0.5 wt.% phytic acid, 0.1-0.3 wt.% brightening agent, 0.1-0.5 wt.% chelating agent and water (balance amount). The secondary acid washing liquid comprises 1.5-3 wt.% nitric acid, 1-2 wt.% citric acid, 0.3-0.5 wt.% sulfamic acid, 0.3-0.5 wt.% ammonium molybdate, 0.2-0.5 wt.% brightening agent, 0.1-0.2 wt.% corrosion inhibitor, 0.005-0.1 wt.% quaternary ammonium salt modified graphene oxide and water (balance amount). USE - The washing liquid is useful in decoration, packaging, building, transportation, electronic, aviation, spaceflight and weapon industries. ADVANTAGE - The washing liquid has excellent corrosion resistance, and can keep the appearance effect with uniform color. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for acid cleaning method of 6061 aluminum alloy.