Compositions and processes for cleaning and passivating metals

Compositions and processes for cleaning and passivating metals

Compositions and processes for cleaning and passivating metals wherein the cleaning operation is carried out at temperatures of from room temperature to 100 DEG C. and said compositions are aqueous solutions containing a phosphoric acid ester, an alkanolamine, at least one sprayable surfactant and,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GEKE, JUEERGEN, STEDRY, BERND
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL SURFACE TREATMENT
CHEMISTRY
CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
DIFFUSION TREATMENT OF METALLIC MATERIAL
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
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Beschreibung
Zusammenfassung:Compositions and processes for cleaning and passivating metals wherein the cleaning operation is carried out at temperatures of from room temperature to 100 DEG C. and said compositions are aqueous solutions containing a phosphoric acid ester, an alkanolamine, at least one sprayable surfactant and, optionally, builders, non-ferrous metal inhibitors, and/or biocides.