1.Material: 85 - 99.5% alumina ceramic
2.Purpose:used in textile machinery
3.Good quality
Alumina Ceramic Yarn Guide / Eyelet Guide / Thread guide For Textile Machinery
Gongtao company mainly produce ceramic parts and components for Textile Machinery,such as ceramic pulley ,ceramic guides,ceramic pigtails,dogtails.
2.Purpose:used in textile machinery
3.Good quality
Alumina Ceramic Yarn Guide / Eyelet Guide / Thread guide For Textile Machinery
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 | |