Jinghui Industry Limited
Jinghui Industry Limited
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Specification of ceramic traverse guides:
1. Optional raw materials: zirconia(ZrO2),high purity alumina(Al2o3),titania(TiO2)
2. Dimensions: min. diameter can be 2mm, max. diameter can be 50mm
3. Type of products: traverse guides, pigtails, eyelets, jet plates, dog tails, air nozzles and so on
4. Tolerance: general tolerance ± 1% of the dimensions, or better via a precision process
5. Surface finish: mirror surface, better than Ra0.1 at working contact surface
Main features of ceramic traverse guides:
1. Low yarn tensions without any yarn damage
2. Long service life on both special yarns and raw materials with aggressive additives
3. Highest yarn cleanliness without any fault silk occasion
3. Excellent mechanical strength, fracture toughness and bending strength
4. Exceptional wear resistance and hardness better than metal ones
5. Good insulation, free of static electricity, resistant magnetic
6. Superb thermal conductivity coefficient and thermal shock property
7. Corrosion resistance in harsh working conditions
8. Excellent thermal shock resistance and good thermal stability
9. Nox-toxic, healthy material, eco-friendly material
10. Meet with RoHS, REACH regulation completely
Description of ceramic traverse guides:
Advanced ceramic melt spinning parts, including traverse guides, pigtail guides, air-jet nozzle, spin finish applicators have been extensively using the polymer fiber production. With our veteran knowledge for materials and growing experience for the design of the physical application in the production, we can design the contact surface with yarn, thread to be the ideal state with the diamond polishing finish.
We offer a number of ceramic yarn guides for thread guides, yarn forming, and yarn modification via different shaping methods in different technical raw materials as per customers' needs.
All these ceramic yarn guides are designed for use in processes at low yarn tensions with no damage. It helps decrease and maintain times and improve production efficiency greatly.
| Property | Units | 95% alumina | 99% alumina | 99.5% alumina | Zirconia | Titania |
| Color | White, pink | White, pink, ivory | Pink, ivory, white | White, Yellow | Black, Gray, Yellow | |
| Density | g/cm3 | ≥3.60 | ≥3.80 | ≥3.85 | ≥6.0 | ≥4.0 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 |
| Hardness | HV | 1500 | 1700 | 1700 | 1300 | 800 |
| Flexural strength | Mpa | ≥320 | ≥338 | ≥379 | ≥1200 | ≥158 |
| Compressive strength | Mpa | ≥2000 | ≥2240 | ≥2240 | ≥1990 | |
| Fracture toughness | Mpa m1/2 | 3-4 | 4-5 | 4-5 | 6.5-8 | 3.2 |
| Thermal Expansion Coefficient(20-800℃) | 1×10 -6 /℃ | 5.0~8.0 | 6.2~8.0 | 6.5~8.0 | 8.0~9.5 | 8.8 |
| Thermal conductivity | W/m.k (25℃) | ≥220 | ≥200 | ≥250 | ≥300 | ≥330 |
| Max. service temperature | ℃ | 1500 | 1600 | 1675 | 1000 | 1000 |
| Insulation strength | KV/mm | 18 | 18 | 19 | 17 | 3.93 |
| Dielectric constant (1Mhz) | (E) | 9.5 | 9.5 | 9.7 | 29 | 85 |