How are tungsten carbide nozzles manufactured to achieve such precise flow characteristics? Manufacturing a tungsten carbide nozzle requires tight control over both material properties and dimensional accuracy. Powder preparation begins with selecting the correct carbide grade: fine-grain (0.3–0.8 µm) with 6–8% cobalt for maximum wear resistance in water jet mixing tubes, or medium-grain (1–2 µm) with 10% cobalt for blast nozzles that experience some impact. The powder is mixed with a organic binder to aid pressing. Shaping uses one of three methods: uniaxial pressing in a precision die (for simple cylindrical nozzles); cold isostatic pressing (CIP) for larger or longer nozzles; or injection molding for complex internal geometries like spiral inserts. The "green" compact is then dewaxed and sintered at approximately 1,400°C (2,550°F) in a controlled atmosphere furnace. https://www.xymjcarbide.com/products/tungsten-carbide-nozzle