THERMALLY SPRAYED, GASTIGHT PROTECTION LAYER FOR METALLIC SUBSTRATE

• Main Author: VERLOTSKI VADIM
• Format: Patent
• Language: English
• Published: 24.12.2008
• Subjects: 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

A thermally sprayed airtight protection layer of a metallic substrate, especially based on Fe, Ni, Al, Mg and/or Ti, is provided to prevent the corrosion of the substrate even under high temperature. A thermally sprayed airtight protection layer of a metallic substrate is based on Fe, Ni, Al, Mg and/or Ti. The spray powder of the protection layer contains more than two components including the first silicate or the rock and the second metal powder and/or other silicate or rock, where the component of silicate or the rock in the spray powder has an alkali content less than 6 weight%.