95% High Strength Alumina Ceramic Guide Eyelet For Textile Machine , Wear Resistance
95% High Strength Alumina Ceramic Guide Eyelet For Textile Machine , Wear Resistance
Alumina Textile ceramic eyelet guides (Ceramic ring ) and zirconia ceramic eyelet are applied to the coiling machine and spinning and weaving machinery, it is in common use fault silk another piece , is used to demand no high fault silk occasion.
Silk thread slides when the job, in china eye outside, for reducing friction, must raise material hardness, smoothness and form.
Our company select and use 99% Al2O3 , hardness greater than HRa88 , density 3.85, surpasses essence throwing Ra 0.2.
The alumia ceramic (Textile ceramic eyelet) Zirconia ceramic eyelet is used to set less (friction is also less) location of pressure right.
Some of the most important properties of alumina Ceramic Yarn Eyelet are:
- Wear resistance
- Frictional characteristics of the guide surface
- Chemical resistance
- Fracture strength
- Surface structure (not to damage the yarn)
- Corrosion resistance Commonly used ceramic materials are corrosion resistant to most chemicals and are thermally stable.
| Properties | Units | Alumina(Al2O3) | ||||||
| Porous | Mullite | Al2O3 92% |
Al2O3 96% |
Al2O3 99% | Al2O3 99.5% | |||
| Al2O3 | ||||||||
| Mechanical | Density | g/cm3 | 2.8 | 3.6 | 3.7 | 3.9 | 3.9 | |
| Color | —— | —— | Tan | White | White | Ivory | Ivory | |
| Water Absorption | % | 0 | 0 | 0 | 0 | 0 | ||
| Vickers Hardness | Gpa | —— | 7.4 | 11 | 11.5 | 13 | 14 | |
| Flexural Strength (20°C) | Mpa | 50~100 | 170 | 345 | 358 | 380 | 380 | |
| Compressive Strength (20°C) | Mpa | 20~100 | 550 | 2200 | 2300 | 3000 | 3000 | |
| Thermal | Thermal Conductivity (20°C) | W/m.K | 3.1 | 3.5 | 16.7 | 24.8 | 25~35 | 25~35 |
| Thermal Shock Resistance (20°C) | ΔT(C) | —— | 300 | 250 | 250 | 200 | 200 | |
| Maximum Use Temperature | °C | 1900 | 1700 | 1500 | 1600 | 1700 | 1700 | |
| Electrical | Volume Resistivity (25°C) | Ω.cm | —— | >1014 | >1014 | >1014 | >1014 | >1014 |
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