Wear-Resistant Al2O3 99.8% Diamond Polished Ra 0.2 Alumina Ceramic Eyelet

Wear-Resistant Al2O3 99.8% Diamond Polished Ra 0.2 Alumina Ceramic Eyelet

The main features of the alumina ceramic eyelet 
1. Exceptional wear resistance and hardness better than metal ones
2. Low yarn tensions without any yarn damage
3. Long service life on both special yarns and raw materials with aggressive additives
4. Highest yarn cleanliness without any fault silk occasion
5. Excellent mechanical strength, fracture toughness and bending strength
6. Exceptional wear resistance and hardness better than metal ones
7. Good insulation, free of static electricity, resistant magnetic
8. Superb thermal conductivity coefficient and thermal shock property
9. Corrosion resistance in harsh working conditions
10. Excellent thermal shock resistance and good thermal stability
11. Nox-toxic, healthy material, eco-friendly material
12. Meet with RoHS, REACH regulation completely

The specification of the alumina ceramic eyelet 

Material option	Alumina(Al2O3), Zirconia (ZrO2), Titania (TiO2)
Forming methods	Dry pressed, Ceramic injection molding, Hot pressed
Specification	OD can be from 1 to 50mm
Precision processing	Precision Grinding, Polishing, Lapping,
Key parameters	Fine grade roughness to be 0.4mm, diamond-like polish to be Ra0.1
Surface quality	Free of cracks, foreign contamination, mirror surface

The description of ceramic wire 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. 

The gallery of ceramic wire guides


Remark:
We have been producing a variety of ceramic wire guide, including ceramic pigtail, ceramic traverse guide,
ceramic roller, ceramic bobbin, and so on.
 

Datasheet of Technical ceramics

Property	Units	Material
		99.5% alumina	99% alumina	95% alumina	ZrO2 (Y-TZP)	ZrO2 (TTZ)
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

 

Manufacturing flow chart of advanced ceramic eyelet

We have in-housing comprehensive manufacturing types of equipment, including forming, sintering,
CNC machining, precision grinding, laser cutting, and so on, it helps us to control the quality very well.
Also, it greatly benefits cost control.


FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer of over 15 years of experience. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.