Glazed High-Voltage Aluminum Oxide Al2O3 Alumina Ceramic Insulator

• Application: High-voltage, High-temperature, Insulation Ceramic
• Material: Porcelain
• Structure: Customized
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: Customized
• Type: Insulation Ceramic
• Usage: High Voltage Power Transmission, Insulation, Driving, Electrical Installation
• Connection Method: Trough Type
• Size of Bearing Capacity: 100KN
• Certification: ISO9001
• Color: White, Pink, Ivory
• Brand: Jinghui Ceramics
• Product Name: Alumina Ceramic Insulator
• Grade of Material: Alumina, Steatite, Zirconia
• Surface Finish: Glazing, Polishing, Metalizing
• Dimensions: OEM or Customized
• Feature: High Insulation, High Mechanical Strength
• Transport Package: Individual Packaging
• Specification: Max. 800mm mmx 1000mm x 30mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 500000/Month
• Package Size: 36.00cm * 20.00cm * 24.00cm
• Package Gross Weight: 12.000kg

Product Description

Glazed High-voltage Aluminum Oxide Al2O3 Alumina Ceramic Insulator

Product Description

The description of alumina ceramic parts
Alumina (al2o3) 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 temperature and chemical corrosion.
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 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, ceramic rings, ceramic discs, ceramic rods, ceramic arms, ceramic wire guides. Whether, it's a prototyping case, or high volume demand, we believe we are able to provide you with a desirable solution.

The specification of technical ceramic parts

Option 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 6 mm (depending on the material);
(3) Plane: 0.1mm sheet with minimum processable thickness, parallelism 0.001mm, dimensional tolerance 0.001 mm, finish Ra0.1; 
(4) Slot: min. value to be  0.1 mm  of narrow groove, and grooves with custom shapes;
(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.

Typical Applications

Application of alumina ceramic parts:

Remark:
Alumina ceramic parts are widely used in the electronic, electrical, machinery, chemistry, ceramic seal, mineral, new energy, aerospace, almost all modern industries.

Products category

 

Product Parameters

Datasheet of technical ceramic materials

Property	Units	Materials
		99.5%Al2O3	99%Al2O3	95%Al2O3	ZrO2	Si3N4
Density	g/cm^3	≥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 m^1/2	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

Why choose us?

With our comprehensive manufacturing & inspection equipment and veteran engineering & production team,  it helps us to produce very high-quality and competitive technical ceramic parts, every piece of ceramic parts could reach our clients' rigorous requirements.

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FAQ

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.