Water-based ceramic anticorrosive coating containing aluminum phosphate as well as preparation and curing methods thereof

The invention discloses a water-based ceramic anticorrosive coating containing aluminum phosphate as well as preparation and curing methods thereof. The water-based ceramic anticorrosive coating containing aluminum phosphate is prepared by adopting aluminium dihydrogen phosphate as a bonding agent, magnesium oxide and zinc oxide as a curing agent, aluminum powder as filler, magnesium chromate as a passivating agent and tetraethyl orthosilicate as an auxiliary agent. The coating is used for preparing a metal ceramic coating layer on a metallic matrix, and the coating layer can tolerate 1000h of neutral salt fog test and keep stable. The coating layer has good high-temperature oxidation resistance in a high-temperature (600 DEG C) oxidation environment. The coating layer can well protect metals in a normal-temperature salt-containing environment and a high-temperature oxidation environment.