Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지

Effect of impurities in bath on surface appearance of electrolytic chromate film

전해크로메이트 피막의 표면외관에 미치는 용액중 불순물의 영향

  • 김명수 (포항종합제철(주) 기술연구소 광양압연 연구팀) ;
  • 김상헌 (포항종합제철(주) 기술연구소 광양압연 연구팀) ;
  • 김영근 (포항종합제철(주) 기술연구소 광양압연 연구팀)
  • Published : 1997.12.01
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Abstract

The surface appearance of zinc coating chromated electrochemically was investigated with the concentration of impurities in chromating solution. The chromium content and yellowness of chromated film decreased with more than 0.1g/1 Zn in chromating solution, while white ness of it increased slightly. The chromium content and whiteness of chromated film also decreased with more than 0.1g/1 Fe in chromating solution, but the yellowness of it increased. Chromium content, whiteness and yellowness of chromated film decreased slightly with more than 0.5g/1 $Cr^{3+}$<\TEX>. But the chromium content and surface appearance of chromated film are not influenced with less than 1.0g/1 Pb in chromating sloution.

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