1. 平台首页
  2. 国际专利信息
  • 专利标题:   Treatment agent used for forming composite chemical conversion film, comprises aqueous solution comprising preset amount of strontium ion and phosphate ion, and having preset pH, and reduced graphene oxide insoluble in aqueous solution.
  • 专利号:   WO2017101711-A1, CN106868486-A, AU2016372757-A1, KR2018090267-A, EP3392374-A1, JP2018536767-W, US2018363145-A1, AU2016372757-B2, EP3392374-A4, CN106868486-B
  • 发明人:   XU S, TANG W, CHEN X, KE C, BIRBILIS N, JIANG H, ZHANG P, BOBILLIS N
  • 专利权人:   BAOSHAN IRON STEEL CO LTD, BAOSHAN IRON STEEL CO LTD, BAOSHAN IRON STEEL CO LTD, BAOSHAN IRON STEEL CO LTD, BAOSHAN IRON STEEL
  • 国际专利分类:   C23C022/22, C23C022/78, C23C022/73, C23C022/83
  • 专利详细信息:   WO2017101711-A1 22 Jun 2017 C23C-022/22 201745 Pages: 27 Chinese
  • 申请详细信息:   WO2017101711-A1 WOCN108675 06 Dec 2016
  • 优先权号:   CN10926268, WOCN108675

▎ 摘　　要

NOVELTY - A film-forming treatment agent comprises an aqueous solution and reduced graphene oxide which is insoluble in the aqueous solution. The pH value of the aqueous solution is 1.5-4.5. The aqueous solution comprises 0.1-2.5 mol/L strontium ion and 0.06-1.5 mol/L phosphate ion. The concentration of reduced graphene oxide is 0.1-5 mg/L. USE - Treatment agent is used for forming composite chemical conversion film (all claimed) for magnesium alloy. ADVANTAGE - The composite chemical conversion film formed using the treatment agent has excellent corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for formation of composite chemical conversion film.