SX LP-20 Supersonic Cold Spray Equipment

The SX LP-20 supersonic cold spray equipment is a specialized device designed for research, small-to-medium batch manufacturing, and metal part repair applications. Relying on cutting-edge supersonic cold spray technology, it strikes a balance between performance and cost-effectiveness, aiming to lower the barrier to entry for cold spray technology adoption. It provides efficient and low-cost metal processing solutions for university research, small- and medium-sized enterprise production, and industrial maintenance sectors.

Cold spraying (CS) is a novel thermal spray technology that operates on the principles of aerodynamics. It utilizes high-temperature, high-pressure gas to carry powder particles axially into a Laval nozzle within the spray gun, generating a supersonic flow. After being accelerated to speeds ranging from 500 m/s to 1200 m/s within the spray gun, the powder particles impact the substrate in a fully solid state, causing plastic deformation and depositing onto the substrate surface to form a dense coating.

Guangzhou Sanxin independently develops cold spray equipment.

Cold spraying (CS) is a novel thermal spray technology that, based on aerodynamic principles, uses high-temperature, high-pressure gas to carry powder particles axially into a Laval nozzle of the spray gun, generating a supersonic flow. After being accelerated to speeds ranging from 500 m/s to 1200 m/s within the spray gun, the powder particles impact the substrate in a fully solid state, causing plastic deformation and depositing onto the substrate surface to form a dense coating.

The company specializes in the R&D and design of coating preparation equipment. Our coating preparation equipment features a high degree of automation and boasts stable, reliable performance! Vacuum cold spraying offers flexible operating procedures, is not restricted by the shape of the workpiece, and is easy to use.

Detailed Explanation of Cold Spray Technology

Cold spray technology, an advanced surface treatment process, has attracted considerable attention in recent years. It involves atomizing metal powders or other materials at extremely low temperatures and precisely spraying them onto a substrate to form a dense coating. This technology is not only suitable for metallic materials but can also be used to coat non-metallic materials such as ceramics and plastics, demonstrating broad application potential.

Overview and Research Progress of Cold Spray Technology

Cold Spray, also known as Cold Gas Dynamic Spray (CGDS), is a coating technique based on aerodynamics. It uses a high-pressure gas source to accelerate solid particles to extremely high velocities, which then impact the substrate and deposit to form a coating.

In high-end industrial sectors such as aerospace, energy equipment, and automotive manufacturing, surface coating technology is crucial for enhancing the service life and performance of components. As two of the core technologies in materials surface engineering, cold spray and thermal spray are often compared with each other. This article will provide an in-depth analysis from multiple perspectives—including technical principles, performance parameters, and application scenarios—to help you precisely match the right technological solution.

Development of Cold Spray and the Current Research Status at Home and Abroad

The concept of cold spraying was proposed in 1990, originating from experiments conducted in the mid-1980s at a Soviet research institute. During supersonic wind-tunnel tests using tracer particles, researchers observed that when the particle velocity exceeded a certain critical threshold, the interaction between the tracer particles and the target surface shifted from erosion to accelerated deposition.

U.S. Cold Spray Technology Used to Refurbish Aging Bombers

South Dakota School of Mines & Technology and Ellsworth Air Force Base have signed a formal partnership to jointly undertake project research aimed at modernizing aging bombers. To date, four B-1 bombers have been refurbished, enabling them to remain in service and saving the military millions of dollars.

The U.S. Air Force is evaluating two cold spray processes.

The U.S. Air Force Research Laboratory has recently, through evaluation, validated two cold-spray deposition technologies that make it possible to apply tungsten carbide–cobalt (WC-Co) coatings to high-strength steel components in aircraft. If subsequent tests are successful, these technologies could serve as an alternative to electroplated hard chrome (EHC).

Because the particle temperature is relatively low during cold spraying, the powder is less likely to undergo oxidative phase transformations. As a result, the microstructure of the coating formed is essentially unchanged compared to that of the powder before spraying. Therefore, a wide variety of powders—such as pure metal powders, alloy powders, and composite coatings—can be used in cold spraying, enabling the production of coatings with diverse properties.

Application scope of supersonic cold spraying

Supersonic Cold Spray is a coating technology that relies on high-speed solid particles impacting a substrate to form a coating. Its key advantages include low-temperature deposition (the coating material remains unmelted), high bonding strength, and minimal thermal damage, making it uniquely valuable in a variety of industrial applications.

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