TIN-FREE STEEL FOR PROCESSING IN RETORT

PURPOSE:To obtain a tin-free steel with superior resistance to processing in a retort by preparing a tin-free steel of Cr type for an adhered can and by specifying the intensity ratios of the principal constituent element of the surface film measured by ESCA. CONSTITUTION:In a tin-free steel (TFS) h...

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Hauptverfasser:	TSUGAWA SHIYUNICHI, OOHASHI ZENJI, ICHIDA TOSHIROU, IRIE TOSHIO, OGATA HAJIME
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Zusammenfassung:	PURPOSE:To obtain a tin-free steel with superior resistance to processing in a retort by preparing a tin-free steel of Cr type for an adhered can and by specifying the intensity ratios of the principal constituent element of the surface film measured by ESCA. CONSTITUTION:In a tin-free steel (TFS) having a two-layered film consisting of metallic Cr and Cr oxide hydrate on a steel sheet, the intensity ratios (peak height, cps) of the principal constituent element of the surface film measured by ESCA are allowed to satisfy equations I -III. The surface of the tin-free steel is coated with epoxy-phenol resin, and after baking the resin, press-bonding is carried out with a nylon film adhesive to obtain a TFS can with extremely superior resistance to processing in a retort.