High Purity Industrial Polished Alumina Ceramic Disc

The description of alumina ceramic disc

Alumina Ceramic is one of the most widely used advanced ceramic materials. Since it is extremely resistant to wear and corrosion. Alumina components are used in a wide range of applications such as electronics, pump components and automotive sensors.Our facility offers a variety of alumina compositions, including 92% Alumina, 96% Alumina, 99% Alumina, 99.5% Alumina and 99.8% Alumina, but the purity 95%, 99% and 99.5% are the most widely used materials. Alumina components can be formed by a selection of  manufacturing techniques such as dry pressing, isostatic pressing, injection molding and extrusion. In order to achieve some special functional requirements, surface finish can be accomplished in our facility, including mirror polished surface, glazing and metallizing.  

The specification of alumina ceramic disc

1. Material availability: Alumina, zirconia, Silicon nitride, Aluminum Nitride, Silicon carbide

2. Forming methods: Dry pressed, Isostatic pressed, Hot pressed

3. Available geometries: Both sides flat, one or both sides concave-convex

4. Dimension capability: Largest diameter up to be 300mm, min. thickness to 0.25mm

5. Secondary process: Precision double-sides grinding, lappening, CNC machining

6. Accurancy feasibility: Flatness to be 0.002mm, tolerance can be 0.01mm

7. Surface treatment : Mirror polishing, glazing, metallizing with different metal plating

The main features of round alumina ceramic plates

1. Good surface roughness, even if flatness of large size ceramic sheet to be 0.005mm after precision grinding

2. Good thermal shock resistance, greater than 220 T(℃) under rapid raising temperature and cooling

3. High thermal conductivity of 99.5% alumina, up to 30 W/m.k at 25℃, It's fit for heat insulation application

4. High dielectric strength, low dielectric constant and dielectric loss. It's an ideal material for insulation fileds. 

The gallery of technical round ceramic plates

Why choose Jinghui?

● Customer-orientation forever

We focus on our customers' business growth and competition, whatever, it's a small case, or large-scale demand.

● The rigorous " quality" manner and sense 

Every people in the facotry do understand "No quality, no everything" and "Quality is the life of enterprises' development"

● The professional and veteran team

Our top management and senior engineers all have over 20 years of related advanced ceramic components.

● Complete and comprehensive manufacturing machines

We owns compenhensive manufacturing equipments from raw material preparation, shaping, sintering to secondary process.

FAQs (Frequently Asked Questions） : 

Q1: Do you have capability to produce customized ceramic disc plates?

A: Yes, we support custom-made or special shape ceramic discs, typically including flat, convex and concave design.

Q2: What kinds of raw material for ceramic disc you provide?

A: Besides alumina ceramic disc, we also manufacture zirconia ceramic discs, silicon nitride disc and silicon carbide disc.

Q3: How long can I get a sample for checking the quality?

A: If we have some samples in stroage, the samples can be provided in 3 working days after receiving the inquiry from clients.

On the other hand, we will take 4~5 weeks to produce the samples as per clients specification to prepare it.

Q4. How do you ensure the quality at your site?
A: We introduced CPK value in the production line and AQL at inspection process, also sampling inspection of all batches is needed.

Q5. Are you a factory or trading company?
A: We are a direct manufacturer with complete manufacturing machines. You are welcome to visit our factory if it's available.

Q6. What other technical ceramic components do you supply?

A: We not only produce industrial ceramic plates , but also manufacturer metalized ceramics, ceramic grinding burr,ceramic tubes, textile ceramics.