The invention discloses a preparation process of a high-strength anticorrosive
coating at a corner, and belongs to the field of valve
corrosion prevention. The preparation process of the high-strengthanticorrosive
coating at the corner is characterized in that nano
ceramic particles can be adhered to surfaces of
quicksand repairing microspheres through process of adhering, condensing, melting andre-condensing
water vapor on the surfaces of the
quicksand repairing microspheres, so that the
quicksand repairing microspheres can carry the nano
ceramic particles to be sealed in the anticorrosivecoating, then a valve is heated, the nano
ceramic particles are separated from the quicksand repairing microspheres and flow towards micro-gaps generated by bubbles nearby the corner, the influence ofthe internal gaps of the anticorrosive
coating on the strength of the anticorrosive coating is remarkably reduced, the strength of the anticorrosive coating formed at the final corner is effectivelyimproved, the peeling probability of the corner is reduced, meanwhile, when being impacted, the quicksand repairing microspheres are broken, the ceramic
adhesive in the quicksand repairing microspheres overflows and extends towards the periphery along the liquid guide fluff, surrounding nano ceramic particles and
micro cracks generated by
impact are bonded together, and the internal self-repairingeffect is achieved.