Water-based transparent corrosion-resistant coating steel rail and preparation method thereof

Abstract

The invention belongs to the technical field of rail transit, and particularly relates to a water-based transparent corrosion-resistant coating steel rail and a preparation method thereof. The technical problem to be solved by the invention is to provide the water-based transparent corrosion-resistant coating steel rail and the preparation method thereof, and the water-based transparent corrosion-resistant coating steel rail can have the characteristics of quick drying, transparency and corrosion resistance without rust removal treatment. The method comprises the following steps: a, mixing 60-70% by mass of a multi-element vinyl acrylic copolymer emulsion, 0.8-1% by mass of an anionic water-soluble copolymer, 1-3% by mass of nano zinc phosphate, 1-3% by mass of phytic acid, 1-3% by mass ofpotassium ferrocyanide and 20-36% by mass of water, dispersing, and adjusting the pH value to 5.5-6.5 to obtain a coating; and b, removing floating dust on the surface of the steel rail, uniformly coating the coating on the surface of the steel rail, and curing at room temperature to obtain the water-based transparent corrosion-resistant coating steel rail. The steel rail manufactured through themethod has the advantages of being quick to dry, transparent and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a water-based transparent corrosion-resistant coating rail and a preparation method thereof. Background technique [0002] As an important part of the track structure, the quality of the rail directly affects the safety and service life of the railway, and the corrosion of the rail is one of the main reasons for the damage and failure of the rail. Under normal circumstances, after the steel rails are produced by the iron and steel enterprises and leave the factory, they need to be transported by railway (or sea transportation) to the user. The user also needs to weld the long rails and stack them, and then transport them to the railway line for track laying by long rail cars. It usually takes more than a year for the railway to be put into operation after track laying. Corrosion of rail transit rails will not only cause huge economic losses, but also cause seriou...

AI Technical Summary

Problems solved by technology

Due to the complexity of the rail corrosion mechanism itself and the strict requirements on the systemicity, operability, environmental friendliness, effectiveness and low economic cost of the corrosion protection technology, there is currently no method to improve the corrosion resistance of rails that can be widely used at home and abroad. corrosion performance method

[0004] Applying anti-corrosion coatings is a common and widely used anti-corrosion method. There are mainly organic, inorganic, and inorganic-organic composite coatings on the surface of rails. However, rust removal treatment is usually required on the surface of rails before coating. In addition, for The beauty of the corrosion-resistant rail surface, environmental protection and the need for quick-drying coatings in the production process are rarely reported.

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