The coating is divided into plasma-sprayed ceramic wear-resistant coating and hypersonic flame-sprayed carbide ceramic coating.

Plasma spray primarily utilizes ceramic materials such as alumina-titanium/chromium oxide series ceramics. These materials boast exceptional properties including high hardness, excellent corrosion and heat resistance, and low friction coefficients. Consequently, the coatings produced through this method exhibit outstanding and stable wear and friction reduction capabilities. The coating structure is dense, and the surface can be polished to a mirror finish (Ra 0.03～0.10 μm). For instance, applying a ceramic coating of 0.3～0.5 mm thickness on the surface of a high-pressure pump plunger can extend its service life by 6 times compared to conventional hard chrome plated plungers, making it the most widely used ceramic coating.

Supersonic flame-sprayed metal-ceramic coatings consist of a composite of nickel-chromium, cobalt as the metallic phase, and tungsten carbide, chromium carbide, and other hard ceramic materials. They feature high hardness, excellent toughness, and shock resistance, with a bonding strength of up to 50-80 MPa.

Application Direction:

Piston for plunger pumps, piston for high-pressure washers, piston for agricultural sprayers, various water seal and oil seal shaft sleeves, and various shaft sealing sections.

Coating Material:

AT13 (Al2O3/TiO2 87/13): High hardness, excellent overall wear resistance.

2. Cr2O3: High hardness, low friction coefficient, excellent corrosion resistance, and abrasion-resistant to particle wear.

3. Co-WC: Excellent high-temperature red hardness, wear resistance to abrasive wear, and erosion resistance.

4. Ni-WC: High hardness, resistant to high-temperature oxidation.