Heat Resistance One End Closed Zirconium Oxide ZrO2 Zirconia Ceramic Tube
Benefits of zirconia ceramic tubes:
1. Excellent wear resistance, much higher 276 times than stainless steel
2. Higher density than most of technical ceramics, over than 6 g/cm3
3. High hardness, over than 1300 MPa for Vicker
4. Can withstand higher temperatures up to 2400°
5. Low thermal conductivity, less than 3 W/m.k at room temperature
6. Similar coefficient of thermal expansion as stainless steel
7. Exceptional fracture toughness reaches up to 8 Mpa m1/2
8. Chemical inertness, aging resistance and not rust forever
9. Resistance to molten metals due to an extraordinary melting point
Specification of the ceramic tubes:
| Material available | Zirconia (ZrO2), Alumina(Al2O3), Silicon carbide(SiO2), Silicon nitride(Si3N4) |
| Forming methods | Dry pressed, Ceramic injection molding, Hot pressed, ISO pressed |
| Available types | Flanged tubes, slotted tubes, one-end closed tubes, square tubes |
| Specification | OD can be from 1 to 50mm, length can be from 10mm to 500mm |
| Precision processing | CNC machining, Precision grinding, Polishing, Lapping, |
| Tolerance | The tolerance of OD and ID can be 0.001mm, the tolerance of length can be 0.001mm |
| Surface quality | Free of cracks, foreign contamination, mirror surface better than Ra0.1 |
| Key parameters | Roughness to be 0.02mm, Parallelism to be 0.001mm |
Description of zirconia ceramic tubes:
We produce numerous zirconic ceramic tubes from various special configurations, different grades of raw materials, customized surface treatments. Zirconium oxide is an extremely tough technical ceramic with a hardness of >9 Mohs. Zirconia has the highest strength and fracture toughness at room temperature among all the advanced ceramic materials, In addition to withstanding attacks from molten metal, organic solvents, strong acids, and strong alkalis. So zirconia ceramic parts always used in various severe service conditions.
Many of these zirconia ceramic tubings are used in precise assembly devices, like a ceramic plunger, sensor parts in automation, ceramic cup ring for oil printer, so further precision processing is needed via fine grinding, CNC machining and polishing. With in-house comprehensive types of equipment, we are capable of control the critical parameters very well.
Besides zirconia ceramic tubes, we also manufacture a wide range of ceramic valve seats, ceramic plunger, ceramic wire guides, and various complicated zirconia structural ceramic parts.
Application of zirconia ceramic parts:
1. Precision ball valve (balls and seats) 2. Pump seals, valves and impellors 3. High density grinding media
4. Oxygen sensors 5. Thread/yarn/wire guides 6. Fuel cell membranes
7. Cutting blades 8. Radiofrequency heating susceptors 9. Medical prostheses
10. Metrology components
Gallery of zirconia ceramic components
We produce various zirconia ceramic components in different materials with a special design.
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 | ℃ | 1675 | 1600 | 1450 | 1000 | |
| CTE | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 10.2 |
| Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | 350 |
| Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 3 |
| Volume resistivity | ohm.cm | | | | | |
| 25℃ | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 11 | ＞1 x 10 11 |
| 300℃ | 1 x 10 12 | 8 x 10 11 | 10 12 -10 13 | 1 x 10 10 | 1 x 10 10 |
| 500℃ | 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 technical ceramic parts
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.
Packaging proposal and transportation solutions
1. We will keep the ceramic parts inside the inner package to be fixed without moving, then it will prevent them from collision each other,
to avoid any cause any chippings during transportation.
2. In addition, the inside of the outer carton will be filled with sufficient protective kinds of stuff.
Why choose us?
★ 10+ Years of manufacturing experience in OEM, ODM ★ Powerful R&D, mass production capability
★ In-house comprehensive manufacturing types of equipment ★ Rigorous quality control system and processes
★ Surpassing pre-sales and after-sales service ★ Abide all orders as the first priority
FAQs(Frequently asked questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. 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.
Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard. A 100% cosmetic inspection will be done.
Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates, ceramic sheets, textile ceramics besides metalized ceramics.
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