Lightweight Long Performance Life 95-99 Alumina Ceramic Eyelet For Textile Machine
Textile ceramic eyelet apply to the coiling machine and spinning and weaving machinery, 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 selects and uses 99%'s Al2O3, hardness greater than HRa88, density 3.85, surpasses essence throwing Ra0.2.
The textile cramic eyelets is used to set less (friction is also less) location of pressure right. For cost reduction, according to using a request, smoothness polishing handicraft is allotted being (0.8 throw Ra) roughly, is throw (Ra accurate 0.4), surpasses essence throwing (Ra0.2).
Ceramic eyelets Be that single face is super-accurate at the same time mark throw and two-sided super-accurate throw. Specification of China eye many, select and use specification listing in common use in sopport a customer the day afer tomorrow now, also may demand making to order according to the customer.
Other information:
| Feature | Application | Main usage |
| 1.Great mechanical strength |
Electric appliance industry Automotive industry |
1.Heat treatment furnace and toughened furnace |
| 2.High softening temperature | ||
| 3.Good resistance to thermal impact | ||
| 4.Small thermal expansion coefficient |
Mechanical industry Engineer industry |
2.Inner liner tube and heating tube in electric furnace |
| 5.Good chill and abrupt heat properties | ||
| 6. Resistance to acid and alkali corrosion |
| 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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