MITTEL UND VERFAHREN ZUM SELEKTIVEN CHEMISCHEN ENTFERNEN HARTER OBERFLAECHENUEBERZUEGE VON SUBSTRATEN

The composition comprises an aqueous solution of H2SO4, a nitro- substituted aromatic compound, and optionally a fluoride ion producing species, and a surfactant. The composition can selectively remove hard surface layers deposited through flame, plasma spray, and detonation gun techniques on supera...

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Bibliographische Detailangaben
Hauptverfasser:	SULLIVAN, THOMAS F, BURNS, DEBRA A, BLEEKS, THOMAS W, BRINDISI, FRANK, JUN
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES 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 DYES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS 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 NATURAL RESINS NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PAINTS POLISHES
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Beschreibung
Zusammenfassung:	The composition comprises an aqueous solution of H2SO4, a nitro- substituted aromatic compound, and optionally a fluoride ion producing species, and a surfactant. The composition can selectively remove hard surface layers deposited through flame, plasma spray, and detonation gun techniques on superalloy substrates by contacting the above stripping solution in a heated bath wherein the bath is continuously agitated by an ultrasonic agitation means.