Recent Trend of Chromate-free Coated Steel Sheets for Electrical Appliances
Naoto Yoshimi, Akira Matsuzaki, Masaaki Yamashita
Recent trend of chromium (VI)-free coated steel sheets for electrical appliances are reviewed. Despite the large amount of research of chromium-free coating being carried out for many years, there have never been products that could provide excellent corrosion protection with a low cost treatment. Recently, in response to the increasing demands for ecological products, new chromate-free coated steel sheets were industrialized in Japan in 1998. Those products were adopted for chassis and cases of audio-visual and office equipment. Finally, features and practical characteristics of one of the new products are to be introduced.
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