Refractory Ceramic Tube
Refractory Ceramic Tube
Refractory Ceramic Tube

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Refractory Ceramic Tube

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Model No. : Refractory Ceramic Tube
Brand Name : Xinxing

Product description

Refractory Ceramic Tube 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. We can supply the products according to customer's drawings, samples and performance requirement.  
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, isostatic pressing and extrusion productive technology etc
Item
                                                 
  Unit                    Steatite ceramic          95 Al2O3              96 Al2O3              99 Al2O3             
Physical Characteristics               Heat resistance 0C 1100 1500 1550 1800
Bulk density                     g/cm3 2.7 3.6 3.6 3.9
Water absorption                % 0 0 0 0

Mechanical Characteristics    
Flexural strength                Mpa 145 320 340 360
Hardness vickers              Gpa 5.7 12.2 13.5 15.6
Elastic modulus                  Gpa 120 280 320 370
Poisson’s ratio                        0.21 0.22 0.23 0.23
Thermal Characteristics            Linear expansion coefficient                          (20-5000C) 10-6/0C 7.9 7.1 7.2 8
Thermal conductivity              w/(m.k) 2.5 16 24 32
Specific Heat                        
*10-3J/(kg*K) 0.75 0.78 0.78 0.9
Electrical Characteristics          Dielectric constant (1MHZ) - 6.2 9 9.4 9.9
Dielectric loss angle            *10-4 18 15 5 1
Dielectric strength            
*106V/m 18 12 15 15
Processing technology
Process range (mm)
Outside Diameter 1---300
Inside Diameter 0.5---300
Length 0.5---600
Accuracy of working (mm)
Perpendicularity 0.001
Concentricity 0.001
Roundness 0.0005
Straightness  0.005
Parallelism 0.01
Planeness 0.005
Roughness  0.005
Fit clearance 0.005
 
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