The boron carbide is the third hard material after the diamond and the cubic borob nitride. The sandblast nozzle of boron carbide has excellent work characteristics and a good correlation "price - work life". According to the used sandblast materials, their time of usage can be from 1000 to 1200 work hours. The hardiness of the boron carbide nozzles is higher than those of silicon carbide 8 to 10 times; the corundum ones - to 16 times, the wolfram about 34 times, and those made of steel and tempered iron - over 100 times.
e produce tungsten carbide nozzles, boron carbide nozzles and silicon carbide nozzles. They used for different application in blasting.
Wear-resistant Venturi blasting nozzles made of Silicon carbide/boron carbide (B4C). Service life: up to 1000 h. Cover: Aluminum/Polyurethane protector. Thread: Aluminum, 50 mm for NHP nozzle holder. Entry size: 25 mm.
• Nozzle throat diameter: 4.8 to 12.5 (mm)
• Nozzle length: 85 to 225 (mm).