U Shape Al2O3 Alumina Ceramic Components Precise Dimension Customized
Brand Name:Jinghui Ceramics
Certification:RoHS, REACH, ISO
Model Number:JH.ACP.016
Minimum Order Quantity:1000 piece per order
Delivery Time:3~4 weeks
Payment Terms:T/T, Western Union, MoneyGram, Paypal, , L/C
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Location:
Shenzhen Guangdong China
Address:
8th Building, Futing Industrial Park, Zhu village, Guanlan, Longhua, Shenzhen, China
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within 29 hours
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Product Details
Precision Customized U Shape 99.5% Al2O3 Ceramic Alumina Insulator for Machinery
Description of ceramic alumina isolator
Alumina ceramic is one of structural ceramics, with high insulation
breakdown, high voltage resistance, high strength, good thermal
conductivity, dielectric loss, and corrosion resistance. Due to
alumina is more cost-effective among all technical ceramics,
alumina ceramic insulators are commonly used in electronic ceramic
substrates, high voltage/current electrical insulation, vacuum
devices, devices porcelain, spark plugs and other products.
Our factory produces a selection of purity of alumina from 75% to
99.8%, all of the ceramic parts we supplied are with a dense body
via dry pressing, hot pressing, ceramic injection molding, and ISO
pressing. In order to achieve some special application for fitting,
reducing the friction, increasing the insulation, we provide a
serial of secondary processes after sintering, covering CNC
machining, polishing, glazing and metallizing.
We manufacture a wide range of alumina ceramic rings, including
ceramic tubes, ceramic rings, ceramic disc, ceramic rod, ceramic
arms, ceramic wire guides. Whatever, its a prototyping case, or
high volume demand, we believe we are able to provide you a
desirable solution.
Prime features of ceramic alumina isolator
1. High electrical resistivity: used in all-electric products,
electric heating products, and wear-resistant machinery parts.
2. Extreme high insulation, it can withstand 18KV at mm2 at least. With glazed treatment, it will increase the insulation.
3. They offer different grade dimensional accuracy per sintered
only, precision machining
4. They are more cost-effective ceramic parts with equivalent
performance among all other technical ceramics
5. High hardness, it is can be up to 1700 HV, and Super compressive
strength up to 2240 Mpa
6. High heat resistance: Alumina ceramic parts offer excellent
thermal stability, which means that it is widely used in areas
where resistance to high temperatures is essential.
7. Good wear resistance: it is an ideal choice to wear parts in
high abrasive industry
8. High corrosion resistance: It is insoluble in water and only
slightly soluble in strong acid and alkaline solutions. Good
chemical stability of alumina leads to high corrosion resistance.
9. We support a variety of customized alumina ceramic parts base on
customer's drawing, sample, or reference parameters
Specification and production capability of ceramic alumina isolator
| Grade of material | 75%, 85%, 90%, 96% , 99%, 99.5% and 99.8% alumina | ||
| Outer diameter | 0.5 ~500 mm | ||
| Length | 1 ~ 1000mm | ||
| Roughness | To be Ra0.1 | Roundness | To be 0.005mm |
| Surface treatment | Polished, Glazed, Metalized availability | ||
| Cosmetic quality | Smooth surface without no 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 6 mm (depending on the material);
(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.
Application of alumina ceramic insulator:
Alumina ceramic parts are widely used in the electronic,
electrical, machinery, chemistry, ceramic seal, mineral, new energy, military, aerospace, almost all modern industries.
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) | ℃ | 1675 | 1600 | 1500 | 1000 | 1200 |
| CTE (20-800℃) | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
| Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
| Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
| Volume resistivity (25℃ ) | 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 | |
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
★ 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.
U Shape Al2O3 Alumina Ceramic Components Precise Dimension Customized
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