Environment-friendly Trivalent Chromate Treatment for Zn Electroplating

아연도금용 친환경 3가 크로메이트 표면처리기술

  • Kim, Soo Won (Namdong Chemical Co., Ltd) ;
  • Lee, Chul Tae (Department of Chemical Engineering, Dankook University)
  • 김수원 (남동화학 주식회사) ;
  • 이철태 (단국대학교 공학부 화학공학전공)
  • Received : 2006.09.13
  • Published : 2006.10.10

Abstract

Hexavalent chromium passivation, as very effective anti-corrosion method, can not be used in the field of surface treatment for metal, any more. Throughout the world, this regulations which was applied to automotive industries will be extended to all industries including electronics industries in the near future. Therefore a new anti-corrosion method should be established without delay, and trivalent chromium passivation as an alternatives replace the hexavalent chromium passivation for the time being. This paper gives an overview of the currently available trivalent chromium passivation processes, and then it attempts to give an insight to develop a more effective trivalent chromium conversion coating process for possible substitution of the hexavalent chromium passivation process.

Keywords

chromate conversion coating;trivalent chromium;hexavalent chromium

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