High-temperature anticorrosive coating for locomotive engine and preparation method of high-temperature anticorrosive coating

Abstract

The invention discloses a high-temperature anticorrosive coating for a locomotive engine and a preparation method of the high-temperature anticorrosive coating, and in particular relates to a high-temperature anticorrosive coating on the surface of the locomotive engine by adopting an organic silicon system, belonging to the technical field of chemical engineering paints. An inorganic high-temperature-resistant anticorrosive wearable coating is developed by taking organic silicon resin and high-purity aluminium oxide as main film forming matters, iron oxide as a conditioning agent and high-purity kaolin, nano calcium carbonate and nanometer magnesia as functional filling materials; the coating can automatically react on a metallic surface at high temperature in the use process so as to generate a compact ceramic glaze protective layer; furthermore, a metal complexing layer having high adhesion property is formed on the metallic surface within a short time; the coating can be used at more than or equal to 1350 DEG C for a long time; and the coating has excellent high-temperature-resistant corrosion property, wear-resisting property, high and low temperature impact property and the like.

Description

technical field [0001] The invention discloses a high-temperature anti-corrosion coating for a locomotive engine and a preparation method thereof, in particular to a high-temperature anti-corrosion coating prepared on the surface of a locomotive engine by using an organosilicon system, and belongs to the technical field of chemical coatings. Background technique [0002] my country has become the second largest producer of automobiles and the largest producer of motorcycles. The biggest technical bottleneck in the rapid development of the motorcycle industry is the corrosion of engines and exhaust pipes. Because locomotive engines, exhaust pipes and other parts are in high temperature and corrosive medium for a long time, the corrosion of equipment is accelerated, which brings many hidden dangers to the safe production and application of locomotives. In order to prolong the service life of locomotive engines and exhaust pipes, organic polymer materials are often used to coat...

AI Technical Summary

Problems solved by technology

Since the locomotive engine, exhaust pipe and other parts are in high temperature and corrosive medium for a long time, the corrosion of the equipment is accelerated, which brings many hidden dangers to the safe production and application of the locomotive

In order to prolong the service life of locomotive engines and exhaust pipes, organic polymer materials are often used to coat the surface of the engine for anti-corrosion treatment, but organic polymers are not resistant to high temperature and wear, which affects their anti-corrosion performance

Especially with the rapid development of aerospace, high-speed railway, automobile and other industries, the performance of metal materials needs to meet the requirements of higher service temperature and harsher corrosion environment, and also have anti-vibration, anti-fatigue, anti-temperature sudden Change and erosion resistance, organic polymer materials have been difficult to meet the use requirements