the same treatment solution for coating a metal strip, as well as a method for applying a steel strip with a coating of the obtained treatment solution for improving the forming

The invention relates to an aqueous, chromium-free treatment solution for the production of oiling without formable metal sheets, which has a pH value in the range of 1.5 to 3.5 and the a) 1 to 40 g / l manganese (II) ions and / or molybdenum-containing oxo anions in which molybdenum has an average oxidation state of +4 to +6, b) 10 to 150 g / l phosphate ions and c) 0.5 g / l to 10 g / l of a dissolved or dispersed the wax includes, a method of applying the same, and a steel strip with a coating obtained from the treatment solution for improving the forming.