Arc-sprayed porous coatings with wear and corrosion resistance are applied to applications such as透气 (air permeability), filtration, and thermal insulation.

Guangzhou Sanxin Company has newly developed a porous plasma-sprayed coating that offers excellent wear resistance and corrosion protection. This coating boasts a porosity that allows for air and water permeability at an efficiency rate of over 30%, making it suitable for a wide range of applications including breathability, filtration, and thermal insulation. Arc spraying is a technique that uses an electric arc ignited between two continuously fed metal wires to melt the metal. A high-speed gas flow atomizes the molten metal, and the atomized metal particles are accelerated and sprayed onto the substrate to form a coating. Arc spraying is one of the most widely used thermal spray methods in practical engineering applications such as corrosion protection for steel structures, wear resistance, and repair of mechanical components. An arc-spraying system typically consists of a power supply specifically designed for spraying, a control unit, an arc spray gun, a wire feeder, and a compressed air supply system.

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