The main materials of sand blasting nozzles are: boron carbide sand blasting nozzle , silicon carbide sand blasting nozzle, silicon nitride sand blasting nozzle, tungsten carbide steel (Rockwell hardness HRA is 96, 93, 91.8, 91 in sequence), alumina ceramics , Steel, etc.
Can be used in the gun industry to make gun nozzles. Boron carbide is easier to manufacture than elemental boron and is relatively cheap. Its largest use is in the military industry.
Boron carbide can also be used as a ceramic coating for warships and helicopters. It is lightweight and has the ability to resist armor-piercing projectiles from penetrating the hot-pressed coating to form an integral defense layer. It can also be used for the grinding, grinding, drilling and polishing of hard materials such as hard alloy gemstones, the manufacture of metal boride and the treatment of boron steel, boron alloy and special welding.
Features of Boron Carbide Blast Nozzle :
Has the same properties as boron carbide, extremely hard and wear-resistant, does not react with acid and alkali, high / low temperature resistance, high pressure resistance, density ≥2.46g / cm3; microhardness ≥3500kgf / mm2, flexural strength ≥400Mpa, The melting point is 2450 ° C. Due to the above characteristics of wear resistance and high hardness, boron carbide nozzles will gradually replace the known cemented carbide / tungsten steel and silicon carbide, silicon nitride, alumina, zirconia and other materials. .
Sandblasting nozzle common specifications:
Length: 35, 46, 60, 80, 100mm, outer diameter: 15-28mm, inner diameter * 8-12mm, material: boron carbide, working pressure: 5-7KG (Mpa), scope of application: spraying by sandblasting machine.
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