Mirror Polished High Purity Rectangle Alumina Ceramic Plate

The specification of alumina ceramic plate: 

● Optional materials: silicon carbon ceramics, Silicon Nitride Ceramics, corundum mullite besides alumina

● Typical color: Purity white, ivory, pink, black available as per customers' special needs

● Dimensions : max. size up to 600mm x 500mm, max. thickness to be 30mm and min. to be 0.25mm

● Norminal tolerance:both length and width with ± 1% of dimensions, thickness with ± 0.5 mm 

● Shaping availability: square, rectangular, round, circular, triangle, pentagonal, semicircle

● Secondary process: precisely grinding, lapping, laser cutting, CNC machining, glazing and metallizing 

● Surface treatment: mirror surface polishing, glass glazing, metallizing for bonding with metal parts

Main characteristics of alumina ceramic plate 

1. High mechanical stability
This property, paired with low thermal capacity, not only results in a lower weight with a reduced tray volume; it also retains very little residual heat during the cooling process. This has a positive impact on energy consumption during firing.

2. High thermal resistance
It offers a positive effect on the energy-saving of the firing processes. Highly thermally resistant materials result in lower thicknesses of the setters, which improves energy efficiency because of less thermal ballast. In addition, ceramic setter plates can also be used at temperatures far over 1000°C.

3. High thermal conductivity

High thermal conductivity of Al2O3 results in homogeneous thermal distribution within the sintering components. Excellent thermal shock resistance is another added benefit, which enables faster firing cycles.

4. High Surface Roughness

A desirable surface roughness ensures optimum gliding for wear parts, sealing performance. The surface roughness is  Ra < 1 µm makes it possible to achieve uniform shrinkage at the firing process, therefore helping to preserve the shape of the products. The smoothness of surface also protects parts from contamination from the setters.

For ultrapure alumina (purity over 99%) can be used both in protective gas atmospheres and reduction atmospheres, They are also stable in reactive atmospheres and in hydrogen atmospheres, not react with most of strong acids and akalis. 

The Description of alumina ceramic plate

Our facility produce a wide range of high purity alumina ceramic plates, the purity is up to 99.8%. These industrial ceramic plates are shaped by ISO pressing, dry pressing or hot pressing with dense ceramic body.

All alumina ceramic plates we supply offer excellent mechanical strength, high temperature resistance, chemical stability and electrical insulation, also this technical ceramic material is conforming to RoHS, REACH regulation fully. 

Sometimes, in order to enhance the surface and texture quality, mirror polishing on some specific sections of the alumina ceramic plate will be performed. Besides, we are capable of dealing with some selection of surface finish, like glazing and metallizing. Also, we support your customized requirements.

Technical Data. sheet of different technical ceramics

Why choose us?

1. With over 15 years manufacturing experience of OEM, ODM and professional, trusted and responsible team members.

2. Support special and custom-made needs, no matter what is prototyping and R&D cases, or serial massive demands for cost down.

3. Owns in-house comprehensive types of manufacturing equipment from raw material preparation to secondary processes machines.

4. Offering many selection of technical ceramic materials, including alumina, zirconia, silicon carbide, steatite, mullite, silicon carbide

5. Rigorous and complete quality control system, including IQC, IPQC, OQC according to ISO quality management system.

6. We are dealing with every case in order to enhance the competition of customers, and make their business growth.

7. Provinding one-stop ceramic components, including Ceramic Tubes, Ceramic Rods, Industrial Ceramic Plate, various ceramic insulators.

FAQs (Frequently Asked Questions） : 

Q1: What grade of raw material for alumina ceramic plates you provide?

A: Silicon nitride,  silicon carbide, zirconia, boron nitride are available besides alumina.

Q2: Do you have capability to produce customized industral ceramic plates?

A: Yes, we support custom-made or special shape industrial ceramic plates, typically including flat plates, convex plates.

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. What other technical ceramic components do you supply?

A: We not only produce al2o3 alumina ceramic plate, but also manufacturer Metalized Ceramics, Ceramic Grinder, Ceramic Seals.