Corrosion-resisting heat-insulating coating system and preparation method thereof

• Main Authors: LI XIANGBO, HUANG GUOSHENG, HU XUANYE
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2017
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; 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 USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention belongs to the technical field of surface engineering corrosion-resisting heat-insulating materials, and particularly relates to a corrosion-resisting heat-insulating coating system and a preparation method thereof. The main structure of the corrosion-resisting heat-insulating coating system comprises a composite base coat, a corrosion resisting coat, a heat insulating coat and a sealing coat. The technological process of the preparation method of the corrosion-resisting heat-insulating coating system comprises the following five steps of conducting preprocessing on a substrate, preparing the composite base coat, preparing the corrosion resisting coat, preparing the heat insulating coat and preparing the sealing coat; specifically, the method comprises that steps of firstly, conducting preprocessing on an aluminum substrate surface, then preparing the adhesive corrosion resisting coat by low-pressure cold spraying, and then utilizing a high pressure cold spraying method to prepare a gradient/gra