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Understand the Applications of Thermal Spray Processing Technology at a Glance
Release time:
2020-08-30 14:43
Source:
Since its inception in 1910, when Dr. M.U. Schoop of Switzerland developed the first metal-melt spraying apparatus, thermal spray technology has a history spanning nearly a century. Initially, thermal spraying was primarily used for applying decorative coatings, with oxygen-acetylene flames or electric arcs commonly employed to spray aluminum and zinc wires. In the 1930s and 1940s, as flame and arc wire-spray equipment became more sophisticated and flame powder guns were introduced, thermal spray technology evolved from its original use in decorative coatings to applications such as repairing mechanical parts with steel wires and coating steel structures with aluminum or zinc as corrosion-resistant protective layers. In the 1950s, the successful development of detonation spraying technology followed by plasma spraying technology led to the widespread adoption of thermal spray techniques in fields such as aerospace. Around the same time, self-melting alloy powders were successfully developed, enabling the elimination of porosity within coatings through remelting processes and facilitating metallurgical bonding between the coating and the substrate, thereby further expanding the application scope of thermal spray technology.
In the early 1980s, supersonic flame spraying technology was successfully developed and, by the early 1990s, had become widely adopted, dramatically expanding the application of WC-Co cemented carbide coatings from the aerospace industry to a wide range of industrial sectors. The emergence of high-power plasma spraying technologies—such as those with power levels up to 200 kW, supersonic plasma spraying, and axial-feed plasma spraying—especially the highly efficient supersonic plasma spraying technology, has provided powerful new tools for further and more effective utilization of thermal spray techniques across various industrial fields.
Thermal spraying technology is a modern manufacturing technique characterized by its broad applicability, relatively simple and flexible processing procedures, wide range of applications, and significant economic benefits. It enables surfaces to exhibit a variety of functional properties, including wear resistance, corrosion resistance, thermal insulation, heat resistance, electrical conductivity, electrical insulation, erosion resistance, oxidation resistance, friction reduction, lubrication, and radiation protection. This technology can be used not only for the repair and surface enhancement of mechanical components but also for component fabrication itself. Thanks to the wide selection of spray materials—free from the constraints of alloying entire bulk materials—it is relatively easy to produce ultra-hard alloys, various ceramic or metal-ceramic coatings, and diverse functional coatings. Moreover, compared to using high-grade materials throughout the entire component, thermal spraying requires significantly less material, making it far more cost-effective than upgrading the material as a whole. Consequently, valuable materials can be used boldly without substantially increasing costs, while the surface performance of the components is dramatically enhanced. Typically, parts repaired by thermal spraying can achieve service lives that are equal to or even several times longer than those of new parts.
Relevant Information
The complete set of plasma-sprayed equipment has been shipped to the customer’s site in Thailand.
Core spraying equipment: SX-80 plasma spray main unit, with a 15,000℃ flame suitable for multiple materials including zirconia and silicon carbide; powder feeding accuracy of ±1%, and coating thickness tolerance ≤ ±5 μm. Environmental protection support system: Customized soundproof booth + pulse dust collector—effectively addressing spray noise pollution while achieving highly efficient dust recovery, compliant with Thai environmental standards. Automated equipment: 6-axis industrial robot + intelligent spray cart, enabling precise spraying of complex workpieces and automated loading/unloading, boosting production efficiency by 40%.
On-site engineers provide hands-on training, focusing on the core operations of plasma spraying equipment such as the SX-80. Sanxin has customized a complete solution for its customers, including an automated spraying robotic arm, a soundproof booth, and a dust removal system—ensuring both high spraying efficiency and compliance with environmental standards.
Guangzhou Sanxin Thermal Spraying Turntable Shipment
Guangzhou Sanxin Company manufactures single-station and multi-station thermal spray turntables, which can be paired with plasma equipment, supersonic equipment, and arc equipment. We offer rapid, customized production tailored to customer requirements and product dimensions. A thermal spray turntable is a high-precision rotary worktable specifically designed for thermal spraying processes—including flame spraying, plasma spraying, and arc spraying. By providing controllable rotational speed and exceptional stability, it ensures uniform coating thickness on the workpiece surface, thereby enhancing spraying efficiency and quality.
SX-80 plasma equipment is being used at a customer site in Russia.
SX-80 plasma equipment is being used at a customer site in Russia.
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