Gongtao company mainly produce ceramic parts and components for Textile Machinery,such as ceramic pulley ,ceramic guides,ceramic pigtails,dogtails.
|
Property | |||||
|
Item: |
AL 2 O 3 |
AL2O3/TiO2 |
Cr2O3 |
ZrO2 | |
|
Feature |
The hardest in all oxide |
Tenacity,good wear-resistance |
Low porosity |
High density, High thermal resistance | |
|
The coating film can be bent |
Low coating porosity |
Connection of grain |
Low thermal conductivity | ||
|
Good insulating property |
Densify and smooth |
High sticking probability |
Best thermal insulation | ||
|
Property |
Hardness ( HRA) |
80 |
75 |
75 |
60 |
|
Porosity% (Open bore) |
8 / (7) |
6/(4) |
4/(2) |
8/(7) | |
|
Resistivity |
1.14*10-2 (260°C) |
___ |
___ |
6.9*10-2 (260°C) | |
|
Ohm.cm |
3.0*10-2 (427°C) |
5.3*10-2 (427°C) | |||
|
Bond strength KGF/cm2 |
>300 |
>300 |
>300 |
>300 | |
|
Coefficient of thermal expansion 21-1232°C*10-6 |
7.3 |
6.5 |
8.9 |
9.6 | |
|
Thermal conductivity (W/m.K) |
2.7 |
2.8 |
2.6 |
1.15 | |
|
Thermal shock resistance |
Good |
Good |
Good |
Good | |
|
Corrosion resistance |
Excellent |
Good |
Excellent |
Excellent | |
|
Spraying material |
Metal,ceramic and other material |
Metal,ceramic and other material |
Metal,ceramic and other material |
Metal,ceramic and other material | |
|
Thickness of spray in mm |
0.1-1.0 |
0.1-1.0 |
0.1-1.0 |
0.1-1.0 | |
