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Plasma-Nickel Mesh Coating with Zirconia Electrolysis of water for hydrogen production is currently an important industrial method for hydrogen generation. To enhance the adsorption surface area of nickel meshes, Guangzhou Sanxin Technology Development first coats the surface of the nickel mesh with a nickel-aluminum alloy. Subsequently, this nickel-aluminum alloy is reacted with a concentrated sodium hydroxide solution; most of the aluminum dissolves, leaving behind numerous micropores. As a result, the surface of the nickel mesh develops a three-dimensional porous structure, significantly increasing its adsorption surface area and thereby boosting catalytic activity and improving hydrogen-production efficiency. Guangzhou Sanxin provides nickel mesh coating equipment, plasma spraying equipment, and automated production lines, along with comprehensive technical support.
In the hydrogen energy industry: staged impellers, polar cover plates, staged bearing housings, and blade coatings with alumina-based wear-resistant layers.
To isolate metallic foreign objects, lithium battery material manufacturers apply protective coatings to components of production equipment that come into contact with the materials. The three key properties—wear resistance, high-temperature resistance, and non-metallic nature—make tungsten carbide spraying an ideal choice; consequently, most lithium battery material production processes incorporate extensive tungsten carbide spraying for protection.
Characteristics of Tungsten Carbide Thermal Spray Coatings: 1. The flame jet velocity is extremely high—typically 53 times the speed of sound. 2. The coating is highly dense with strong bonding strength; its porosity can be less than 1%, and the bonding strength can exceed 70 MPa. 3. The coating material exhibits low oxidation, minimal carbon loss, and high hardness.
A key feature of insulated bearings is the presence of an extremely thin (on the order of micrometers) coating on their surface, which provides electrical insulation and can withstand electrical arcing caused by voltages exceeding 500V. A thicker coating can even resist high-voltage discharges up to 1,000V, thereby effectively preventing defects such as arcing induced by induced currents on the spindle and bearing, which could lead to corrosion on the bearing surface, the formation of shrinkage cavities on metal surfaces, and the creation of grooves on the bearing’s rolling elements. Here, a special note: At high frequencies, the induced shaft current can become substantial. If insulated bearings are not used, the circulating currents that flow through the bearing can easily cause overheating or severe electrochemical corrosion, ultimately leading to bearing damage.
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