Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Packnosei KkfiledCriticalNippon Packnosei Kk
Application grantedgrantedCritical
Publication of TW329436BpublicationCriticalpatent/TW329436B/en
A surface treating composition for a zinc-containing metal-plates steel strip, which is characterized in : an aqueous composition comprising 0.2~35 g/l of hexavalent chromium ions and 0.1~20 g/l of trivalent chromium ions, 0.2~10 g/l of nickel ions, 1~50 g/l of an inorganic acid, and 100~300 g/l of at least one aqueous emulsion resin and having a pH of 2.5 or less; and a weight ratio of nickel to inorganic acid controlled to 0.033 to 0.2, and to total chromium controlled to 0.1 to 0.6, and the weight ratio of the resin material to nickel controlled to 10 to 1500.
TW083105514A1993-06-251994-06-17Surface treating composition and surface treating process for a zinc-containing metal-plated steel strip
TW329436B
(en)
Process for the chemical conversion of metallic substrates, conversion bath adapted to be used in the same process and concentrate adapted for the preparation of the bath