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large alumina ceramic brick

Product Detailed

Related Categories:Refractory

Adopt the advanced dry press technology, the characteristics of this large product are superior to others. Features:

1) A variety of specifications available.

2) Satisfy various technical request

3) Lower medium spoilage

4) Good insulation performance and high temperature resistance

5) Stiffness texture

6) Used in all electric products, electric heating products and wear resistant machinery parts.

7) Excellent electrical properties

8) Moderate strength

9) High resistivity

Alumina ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, 200T isostatic pressing and extrusion productive technology etc.
Material	Unit	75% alumina ceramics	95% alumina ceramics	99.7% alumina ceramics
Density	G/cm3	2.8	3.65	3.85
Highest application temperature	°C	1400	1500	1800
Bending strength	Mpa	150	300	340
Compressive strength	Mpa	900	3400	3600
Hardness	HV0.5	1300	1800	2000
Insulation breakdown strength	KV/mm	10	15	18
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005

We can supply the products according to customer's drawings, samples and performance requirement.

large alumina ceramic brick