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Cold spray, also known as Cold Gas Dynamic Spray (CGDS), is an advanced surface coating technology based on aerodynamics. It employs high-pressure gas to propel solid particles to extremely high speeds, causing them to撞击a substrate upon impact and deposit to form a coating. This technology is not only efficient but also environmentally friendly, making it suitable for a wide range of applications. Here’s a detailed look into how cold spray works.

Thermal spraying technology is a sophisticated surface engineering process that involves heating a coating material to a molten or semi-molten state using various heat sources, such as electrical (plasma or arc) or chemical methods (combustion flame), and then depositing it onto a pretreated substrate surface at a certain velocity to form a coating. This technology essentially creates a special working surface on an ordinary material, imparting it with various functionalities such as corrosion resistance, wear resistance, high-temperature resistance, oxidation resistance, thermal insulation, electrical insulation, electrical conductivity, microwave radiation protection, and more.

Thermal spraying is a versatile surface coating process used to apply a wide range of materials onto various substrates for protective, decorative, or functional purposes. Among the various thermal spray techniques, flame spray and arc spray are two of the most commonly used methods. Each has its unique characteristics and applications, and understanding their differences is crucial for selecting the most suitable technique for a particular project.

Arc spraying, often referred to as metalizing, TSA, TSZ, and TWAS, is a highly productive and economical thermal spray coating system. This process utilizes direct current (DC) power to energize two conductive wires, one positive and the other negative, which are then fed through a feeder into a gun head. Arc spraying is widely used in various industries for surface coating, corrosion protection, and the restoration of worn or damaged surfaces.