99% 99.5% Ceramic Machining Alumina Parts
The specification of industrial ceramic parts
| Optional Materials |
alumina, zirconia, silicon carbide, silicon nitride, steatite optional |
| Outer diameter |
0.5 ~800 mm |
| Length |
1~1000mm |
| Roughness |
To be Ra0.05 |
| Surface treatment |
Polished, Glazed, Metalized availability |
| Cosmetic |
Smooth surface without contamination, deformation, and crack |
The accuracy achieved after precision machining
(1) Axis: roundness 0.002 mm, concentricity 0.002 mm, smoothness Ra0.1;
(2) Hole: the minimum processing hole diameter is 0.2 mm and the depth is up to 6mm;
(3) Slot: min. value to be 0.1 mm of narrow groove, and grooves with custom shapes;
(4) Plane: 0.1mm sheet with minimum processable thickness, parallelism 0.001mm, measurement tolerance 0.001 mm, finish Ra0.1;
(5) Thread: The minimum machinable M2 internal thread, the accuracy of GB-7h, the external thread size is not limited, the accuracy is GB-6g.
The main characteristics of the technical ceramic parts
1. offer different grade dimensional accuracy
2. One of the cost-effective ceramic parts
3.. High hardness up to 1700 HV,
4.Super compressive up to 2240 Mpa
5. High heat resistance
6. Good wear resistance
7. High electrical resistivity
8. High corrosion resistance
9. Support customized specification, service
The description of alumina ceramic parts
Aluminum oxide (Alumina) has an extensive application due to its versatility and low cost of material than other advanced ceramics. Alumina offers high electrical insulation resistance, high-temperature resistance, strong hardness, wear resistance, and good chemical stability, making it a good material to withstand high temperatures and chemical corrosion.
Our factory produces a selection of alumina purity from 75% to 99.8%, all of the ceramic parts we supply are a dense body via dry pressing, hot pressing, ceramic injection molding, and ISO pressing. To achieve special applications for fitting, reducing friction, and increasing insulation, we provide a series of secondary processes after sintering, covering CNC machining, polishing, glazing, and metalizing.
We manufacture a wide range of alumina ceramic rings, including ceramic tubes, rings, discs, rods, arms, and wire guides. Whether it's a prototyping case or high-volume demand, we believe we can provide you with a desirable solution.
The application of alumina ceramic parts
Remark:
Alumina ceramic parts are widely used in electronic, electrical, machinery, chemistry, ceramic seals, minerals, new energy, military, aerospace, and almost all modern industries.
Remark:
We produce a series of alumina ceramic products, including alumina metalized ceramics, ceramic substrates, ceramic wafers, ceramic guides, and so on.
Datasheet of technical ceramic materials
| Property |
Units |
Materials |
| 99.5%Al2O3 |
99%Al2O3 |
95%Al2O3 |
ZrO2 |
Si3N4 |
| Density |
g/cm3 |
≥3.85 |
≥3.80 |
≥3.60 |
≥6.0 |
≥3.2 |
| Water absorption |
% |
0 |
0 |
0 |
0 |
0 |
| Hardness |
HV |
1700 |
1700 |
1500 |
1300 |
1550 |
| Flexural strength |
Mpa |
≥379 |
≥338 |
≥320 |
≥1200 |
≥600 |
| Compressive strength |
Mpa |
≥2240 |
≥2240 |
≥2000 |
≥1990 |
≥2500 |
| Fracture toughness |
Mpa m1/2 |
4-5 |
4-5 |
3-4 |
6.5-8 |
6 |
Max. service temperature
(Non-loading) |
ºC |
1675 |
1600 |
1500 |
1000 |
1200 |
| CTE (20-800ºC) |
1×10 -6 /ºC |
6.5~8.0 |
6.2~8.0 |
5.0~8.0 |
8.0~9.5 |
3.1 |
| Thermal shock |
T(ºC) |
≥250 |
≥200 |
≥220 |
≥300 |
≤1000 |
| Thermal conductivity(25ºC) |
W/m.k |
30 |
29 |
24 |
3 |
15~20 |
| Volume resistivity (25ºC ) |
ohm.cm |
>1 x 10 14 |
>1 x 10 14 |
>1 x 10 14 |
>1 x 10 11 |
>1 x 10 12 |
| Insulation strength |
KV/mm |
19 |
18 |
18 |
17 |
|
| Dielectric constant(1Mhz) |
(E) |
9.7 |
9.5 |
9.5 |
29 |
|
1. Powerful R&D to support customized specification, as large-scale mass production capability
2. In-house complete manufacturing equipment, including forming, sintering, and precision machining process.
3. Rigorous quality control system and processes per ISO9001: 2008, including IQC, IPQC, QA, OQC
4. Surpassing pre-sales and after-sales service, everything we do just for the business growth of our customers.
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 is collected.
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 12 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 demands 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 standards.
A 100% cosmetic inspection will be done.
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