PRODUCTION OF ANTICORROSIVE FILM

PURPOSE: To produce an anticorrosive film on the surface of the product of cast iron, cast steel, etc., having many flaws. CONSTITUTION: The surface of a cast substrate 1 having a pit 2 and from which graphite 3 is exposed or falls off is degreased and activated, and then the surface is made catalyt...

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Bibliographische Detailangaben
Hauptverfasser:	SHIGEMURA SADATO, KANEKO AKITAMI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR 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 SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PURPOSE: To produce an anticorrosive film on the surface of the product of cast iron, cast steel, etc., having many flaws. CONSTITUTION: The surface of a cast substrate 1 having a pit 2 and from which graphite 3 is exposed or falls off is degreased and activated, and then the surface is made catalytic by sensitization and activation. An Ni-P electroless plating is then applied to form an anticorrosive plating film 5.