High Hardness Long Life Silicon Nitride Creamic Guide Locating Pin for Nut Welding
1 . Description
Silicon nitride is the raw material for the preparation of pneumatic sintered structural parts ceramics, which includes mixing, pressing, cold isostatic pressing, sintering and post-processing steps, the preparation method steps are simple, convenient and easy, the preparation process is stable, the production efficiency is high, the structural parts ceramics prepared by this method have large hardness, high strength, and have high temperature resistance, high voltage impact resistance and bending resistance.
2 . Advantages
| Material name | Unit |
SI3N4(G.P.S) |
Volume densityg |
g/cm3 |
3.2-3.3 |
Hardness |
HRA |
90-93 |
Bending strength |
MPa |
700-900 |
Air hole rate |
% |
<1 |
Thermal expansion coefficient |
1×10-6/C0 |
3.5 |
Breaking tenacity |
(MPa m1/2) |
7 |
ThermalConductivity |
W/m·K |
25 |
