High Purity Technical Alumina Circular Plate

The specification of alumina circular plates

1. Forming methods: Dry pressed, Isostatic pressed, hot pressed

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

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

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 circular 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 description of alumina circular plate

This advanced ceramic circular plate is made of high purity aluminum oxide.  It's regularly shaped by dry pressing, Isostatic pressing with very dense and smooth texture. We are able to proceed with  small size to large size alumina circular ceramic plate in customized thickness range from 0.25mm to 30mm, the max. diameter can be up to 300mm. Also different selection of raw materials are used, mainly including zirconia, silicon carbide, silicon nitride and aluminum nitride.

Besides circular shape of alumina ceramic plate,  square, rectangular, triangle, pentagonal, convex, concave are available to us. In order to meet customers' stiff application, a precision flat grinding is needed to reach the flatness to be 0.001mm and the the tolerance of thickness to be 0.01mm. Additionally, we offer other secondary processes, such as diamond - like polishing, lapping, cutting, metalizing for ceramic to metal bonding and CNC machining to reach customers' specific needs.

The gallery of technical ceramic circular 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 alumina ceramic circular 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.