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Alumina ceramic

Alumina ceramic rod bar insulator heater threaded precision ceramic rods

  • Brand：Mingrui Ceramic
  • Material：Alumina ceramic
  • Precision：0.001mm
  • Features：Heat resistance High purity
  • Color：White Blue Ivory Black etc.
  • Customized：YES OEM

Hotline

181-2297-4730

Alumina Ceramic Rod Bar Insulator Heater Threaded Precision Ceramic Rods

High precision Alumina Ceramic Parts
 

We can supply alumina ceramic rod of different specifications.Alumina ceramic rod is made of different proportions of high purity alumina from high-performance technical ceramic materials. Enhance performance and product life by using the material best suited to your application.
 

The shape of the ceramic bar:
Cylindrical, Square, Screw Threadand, Porous...
 
Application of ceramic rods：
Filter,Shaft,Plunger Rod,Piston Rod,Cylinder Rod,Insulating Rod,Electric Heater,Heat Conducting Bar,Sharper rod,Honing rod and others.
 

High purity alumina ceramics:
99.99% Alumina ceramic; 99.9% Alumina ceramic

Ordinary alumina ceramics:
99.7% Alumina ceramic,99.5% Alumina ceramic,99% Alumina ceramic,97% Alumina ceramic,96% Alumina ceramic,95% Alumina ceramic.

Part of us machining case specifications:

OuterDiameter (Inch)  Outer Diameter (mm) Maximum Length
0.137  3.48    36in / 914mm 
0.188  4.78    36in / 914mm 
0.197  5.00    36in / 914mm 
0.212  5.38    36in / 914mm 
0.250  6.35    36in / 914mm 
0.264  6.71    36in / 914mm 
0.313  7.95    36in / 914mm 
0.375  9.53    36in / 914mm 
0.388  9.86    36in / 914mm 
0.4  10.16   36in / 914mm 
0.44  11.18   36in / 914mm 
0.500  12.70   36in / 914mm 
0.518  13.16   36in / 914mm 
All of cermaic rods can be machinable for industry applications

Secifications of the alumina cermaics:
Properties Unit Alumina (AL2O3)
AL2O3≥95 AL2O3≥99 AL2O3≥99.5 AL2O3≥99.8
Volumetric density g/cm3 3.7 3.80-3.85 3.85 3.9
Hardness HRA≥ 86 88 88 88
Flexural Strength Mpa≥ 300 350 400 400
Maximum temperature ℃ 1500 1500 1500 1500
Line expansion coefficient ×10-6/℃ 7.5 8.2 8.2 8.2
Dielectric constant εr(20℃,1MHz) 9 9.2 9.2 9.2
Media loss tanδ×10-4,1MHz 3 2 2 2
Volumetric resistivity Ω·cm(20℃) 1013 1014 1014 1014
Breakdown strength KV/mm,DC≥ 20 20 20 20
Acidic resistance mg/cm2≤ 0.7 0.7 0.7 0.7
Alkaline resistance mg/cm2≤ 0.2 0.1 0.1 0.1
Abrasion resistance g/cm2≤ 0.2 0.1 0.1 0.1
Compressive strength Mpa≥ 2500 2500 2500 2800
Flexural Strength Mpa≥ 200 350 350 350
Elastic modulus Gpa 300 350 350 350
Poisson-Pine ratio   0.2 0.22 0.22 0.22
Thermalcoefficient W/m·K(20℃) 20 25 25 25

Precision of manufacture
Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Precision process CNC maching,grinding,lapping
Surface finish Glazed,polishing or metallized
Visual quality:
1. No cracks,  no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface

As a manufacturer of ceramic parts, we offer customization of ceramic bars of special sizes and shapes.High Precision, Fast Delivery Time, High Composition.

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Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL：+8618122974730
MB：+86 181 2297 4730 Tel：+86 746 3386888
Skype：+86 181 2297 4730
Email：admin@cerampart.com
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City