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vattenhaltiga, sura zink - fosfat - belaeggningsloesningar,laogtemperaturfoerfarande foer belaeggning jaern - och / eller zinkytor och daeri anvaendbara belaeggningskoncentrat och metallaktiverande loesniinnehaollande titan
vattenhaltiga, sura zink - fosfat - belaeggningsloesningar,laogtemperaturfoerfarande foer belaeggning jaern - och / eller zinkytor och daeri anvaendbara belaeggningskoncentrat och metallaktiverande loesniinnehaollande titan
Aqueous compositions and low temperature processes for treating clean steel and galvanized steel to provide a coating suitable for the application of paint thereto. The aqueous treating compositions contain: -Ingredient Quantity -zinc ion from about 0.9 to about 2.5 g/l; -nickel ion from about 0.6 to about 2.0 g/l; -orthophosphoric acid from about 15 to about 45 g/l; -nitrate ion from about 1.0 to about 10.0 g/l. - The pH of the composition is adjusted to 3.0-3.5 by addition of alkali metal hydroxide. The above composition is used on clean galvanized steel. For clean ungalvanized steel, from about 0.10 to about 0.65 g/l of nitrite ion is included in the composition. Optional ingredients in the above compositions include chlorate ion, ferric ion, and a fluoride compound. The invention also relates to a metal activating composition comprising an aqueous colloidal solution of manganese ion and a titanium compound.
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机译:用于处理清洁钢和镀锌钢的水性组合物和低温工艺,以提供适合于在其上施加油漆的涂层。该水性处理组合物包含:-成分量-锌离子为约0.9至约2.5g / l; -镍离子为约0.6至约2.0 g / l; -正磷酸为约15至约45g / l; -硝酸根离子的含量为约1.0至约10.0 g / l。 -通过加入碱金属氢氧化物将组合物的pH调节至3.0-3.5。以上组成用于清洁的镀锌钢。对于清洁的未镀锌钢,组合物中包括约0.10至约0.65g / l的亚硝酸根离子。上述组合物中的任选成分包括氯酸根离子,铁离子和氟化物。本发明还涉及一种金属活化组合物,其包含锰离子的胶体水溶液和钛化合物。
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