화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.12, No.8, 831-840, December, 2001
Export Citation
환경 친화형 3가 크롬 도금공정
Ecological Chromium Plating by Trivalent Chromium
이철태†
  • 단국대학교 공학부 화학공학전공, 서울 140-714
Chul Tae Lee†
  • Department of Chemical Engineering, Dankook University, Seoul 140-714, Korea
E-mail:
초록
금속 표면처리 기술 분야에서 광범위하게 적용되고 있는 6가 크롬의 사용에 대해 세계적으로 강력한 규제의 움직임이 있고, 이의 제조, 사용, 처리 폐기 등의 가격이 계속적으로 상승하고 있으며, 이에 대한 대체 물질 및 대체 공정에 대한 연구개발이 절실히 요구되고 있는 실정이다. 또한 향후의 환경 문제의 관점에 따라 가까운 장래에 확실히 그 규제가 이루어질 6가 크롬 대체를 위한 표면처리 기술의 확립은 국내 자동차 업계는 물론 철강 및 금속소재 관련 업계가 시급히 해결하여야 할 당면 과제이다. 따라서 본 총설에서는 6가 크롬 도금 공정의 대체를 위한 공정 개발을 위해 기존의 6가 크롬도금 공정을 소개하고 나아가 현재까지 제안된 3가 크롬 공정을 소개하여 획기적인 3가 크롬 도금 공정의 확립에 기여하고자 한다.
Throughout the world there are strict regulations that limit the application of hexavalent chromium in the technical field of metal surface treatments. Furthermore, with steadily increased in its price of manufacturing, handling, application and waste-treatment, the research and development for its substitutes and alternative processes are urgently in need. In addition, such restriction will also be applied to the use of hexavalent chromium in the near future. This foreseeable restriction, undoubtedly, will bring significant problems to the domestic auto, steel, and metal material industries because, currently, they are heavily dependent on the metal surface treatment using hexavalent chromium. To alleviate such problems, alternate metal surface treatments to substitute the hexavalent chromium is a immediate task that needs to be resolved. This paper gives an overview of the currently available hexavalent chromium and trivalent chromium processes, and then it attempts to give an insight to a new trivalent chromium plating process for possible substitution of the hexavalent chromium plating process.
Keywords:chromium plating;trivalent chromium;hexavalent chromium
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