High Hardness Low Friction Advanced Alumina Ceramic Bobbin Guide

Product Description

High Hardness Low Friction Advanced Alumina Ceramic Bobbin Guide

The specification of ceramic bobbin guides
1. Raw material option: high purity alumina(Al2o3), zirconia(ZrO2), titania(TiO2)
2. Dimensions: min. diameter can be 2mm, max. diameter can be 50mm
3. Type of products: eyelets, bushings, friction discs, pigtails, 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

The main features of ceramic bobbin guides
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 description of ceramic bobbin guides
The ceramic bobbin guides are made of high-quality alumina or zirconia, which are processed strictly according to the polishing process of the textile industry. In order to reduce the friction between the ceramic guide and yarn, the surface finish such as polishing and waxing is a must. We have been producing numerous ceramic yarn guides. Besides ceramic hook guides, we also produce ceramic eyelet guides, ceramic traverse guides, ceramic bushing guides, ceramic slit guides, ceramic pigtail guides, and so on. These textile ceramic spare parts offer a series of advantages: excellent wear resistance, superb high hardness, great heat resistance, acid resistance, and low friction coefficient.

Whatever, it's prototyping with small lots or cost down needs for mass production, we could provide you an ideal solution.

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/cm^3	≥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 m^1/2	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.