Thermal spraying device

At Yutec Japan, we handle thermal spray equipment for each process. Thermal spraying refers to the process of forming a coating by spraying molten particles of materials such as metals, ceramics, cermets, and resins onto a substrate, using a heat source (such as mixed gas combustion or electrical energy). As the name suggests, thermal spraying is a technique that involves "melting" the spray material and "projecting" it onto a pre-treated substrate. - Gas flame spraying: A gas mixture of acetylene and oxygen is burned to create a flame, which forms the thermal spray coating. - Arc spraying: An arc current is generated at the contact point of two wires, melting the material with the heat, which is then atomized with compressed air to form the thermal spray coating. - HVOF spraying: Kerosene and oxygen are explosively combusted inside the spray gun to create a high-speed flame that exceeds the speed of sound, forming the thermal spray coating. - Plasma spraying: Generally, plasma is generated in a gas atmosphere mixed with argon and nitrogen to create a high-temperature flame, forming the thermal spray coating. - Suspension spraying: This is the latest technology in the thermal spray process. The principle is based on plasma spraying, but it allows for the introduction of fine powders (around 1μm) in a slurry state into the plasma flame, forming the thermal spray coating.

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