(B4C)Nozzle hot pressure sintered boron carbide ceramic nozzle is 4-7 times than alumina ceramic in service life, so it is wide

(B4C)NozzleHot pressure sintered boron carbide ceramic material, an up-and-coming material instead of hard alloy and alumina ceramic material has been used in grit blasting with the largest amount. Nozzle made of alumina ceramic is cheaper, but its hardness is low and wearable performance is of a sort so it is only used in the case of small grit blasting working load. In practice, hot pressure sintered boron carbide ceramic nozzle is 4-7 times than alumina ceramic in service life, so it is widely used for sandblaster operated by hand with requirement of long service life and water jet cutting contained abrasive with requirement of little changing in hole size.

Capability and application of boron carbide and silicon carbide nozzles
Character	B4C	SiC
Density g/cm3	≥2.45	≥3.06
Microscopical rigidity kgf/mm2	≥2500	≥2300
Bendproof intensity MPa	≥400	≥350
Melting point	2450	2600Decompound
Use circumstance	High temperaturehigh pressurerubbingstrong acid and alkali	High temperaturehigh pressurerubbingstrong acid and alkali.Paper pulp and scrap liquidoxidation under high temperaturehigh temperature gas
Application	Spurtmachinepressurizeelongatefoundrybulletproofarmornuclear industry etc.	Spurtmachinepressurizevalve plateinner linerthimblemolding boardpump accessory etc.

(B4C)Nozzle