| Customization: | Available |
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| Application: | Industrial Ceramic |
| Type: | Ceramic Parts |
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Pink Eyelet Pulley Alumina Thread Textile Ceramic Yarn Guide
Jinghui Ceramic was established in 2008 and specializes in the production of ceramic yarn guides. The products are made of 95% alumina ceramics, 99% alumina ceramics and titania ceramics. They are mainly used for the threading of various textile machinery.
Product Features
- Not easily deformed, can withstand high temperatures
- Not easy to wear and corrode
- Good insulation
- Support customization
| Product name | Ceramic yarn guide for textile machinery |
| Forming method | Dry pressed, Ceramic injection molding, or Hot pressed. |
| Precision machining | Grinding, Lapping, Polishing, Glazing, etc. |
| Key parameters | Roughness to be 0.4mm; Diamond-like polish to be Ra0.1. |
| Surface quality | Free of cracks and foreign contamination; Mirror surface. |
The following is a data sheet of some common engineering ceramics.
| Property | Units | Material |
||||
| 99.5% alumina |
99% alumina |
95% alumina |
ZrO2 (Y-TZP) |
ZrO2 |
||
| Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥5.95 | ≥5.72 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 |
| Hardness | HV | 1700 | 1700 | 1500 | 1300 | 900 |
| Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥1200 |
| Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | 1750 |
| Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 11 |
| Max. service temperature |
ºC | 1675 | 1600 | 1450 | 1000 | |
| CTE | 1×10 -6 /ºC | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 10.2 |
| Thermal shock | T(ºC) | ≥250 | ≥200 | ≥220 | ≥300 | 350 |
| Thermal conductivity(25ºC) | W/(m·k) | 30 | 29 | 24 | 3 | 3 |
| Volume resistivity | ohm.cm | |||||
| 25ºC | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 11 | |
| 300ºC | 1 x 10 12 | 8 x 10 11 | 10 12 -10 13 | 1 x 10 10 | 1 x 10 10 | |
| 500ºC | 5 x 10 10 | 2 x 10 9 | 1 x 10 9 | 1 x 10 6 | 1 x 10 6 | |
| Insulation strength | KV/mm | 19 | 18 | 18 | 17 | 20 |
| Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | 28 |
Ceramic yarn guides can be used in winding, drawing, spinning, texturing, weaving, and knitting processes.
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