3 results about "Suspension plasma spray" patented technology

The application discloses a high-temperature wear-resistant coating suspension, a high-temperature wear-resistant coating and a preparation method and application thereof. The high-temperature wear-resistant coating suspension comprises a solute, a solvent and a dispersant, and the solute comprises NiCr-Cr3C2 composite powder and BaF2 / CaF2 eutectic powder. The preparation method of the high-temperature wear-resistant coating comprises the following steps: adopting a suspension plasma spraying technology, spraying the high-temperature wear-resistant coating suspension, forming a NiCr-Cr3C2-BaF2 / CaF2 coating, and preparing the high-temperature wear-resistant coating. The application further provides a composite coating which comprises a metal transition layer and the high-temperature wear-resistant coating deposited on the surface of the metal transition layer. The suspension plasma spraying technology can form a suspension of fine particles in the spraying process, which helps to improve the melting degree of the particles, improve the coating density, and obtain a coating with a dense structure by controlling the suspension system and the spraying process.

The application relates to the technical field of spraying equipment, in particular to a micro-nano material suspension plasma spraying device, which comprises a fixing frame, a plasma spraying gun and a spraying gun, connecting plates and a workbench are arranged on the fixing frame in an up-down distribution, the plasma spraying gun and the spraying gun are respectively arranged on the connecting plates, one side of the plasma spraying gun is connected with a plasma generator, one side of the spraying gun is connected with a liquid storage tank, a controller is arranged on the side wall of the fixing frame, one side below the connecting plate is further connected with an L-shaped support, a spherical spraying guide is arranged in the middle of the support, a connecting seat connected with the plasma spraying gun is arranged outside the spraying guide, and a connecting port connected with the spraying gun and a cavity are further arranged in the spraying guide. Compared with the prior art, the application effectively solves the problem that the spraying range cannot be adjusted due to the limitation of the size of the spraying gun outlet, and improves the adjustability of the spraying device.