METHOD FOR THE CORROSION-PROTECTIVE AND CLEANING PRETREATMENT OF METAL COMPONENTS
The invention relates to a multiple-step method for the corrosion-protective pretreatment of components, said pretreatment being at least partially produced from a metal material predominantly consisting of at least one of the elements iron zinc and/or aluminium, according to which the components ar...
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Main Authors | , , , |
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Format | Patent |
Language | English French German |
Published |
28.10.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a multiple-step method for the corrosion-protective pretreatment of components, said pretreatment being at least partially produced from a metal material predominantly consisting of at least one of the elements iron zinc and/or aluminium, according to which the components are first brought into contact with an acid aqueous composition (A) containing water-soluble compounds of the elements Zr and/or Ti and then with an acid aqueous composition (B) containing phosphate ions and an accelerator. The method is particularly suitable for the pretreatment before an electrocoating. |
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Bibliography: | Application Number: EP20180812172 |