Alumina ceramic screw nuts fastener precise head screw and nuts
- Brand：Mingrui Ceramic
- Material：Alumina ceramic
- Precision：Ra0.1 um tolerance 0.001mm
- Features：Heat resistance High purity
- Color：White Blue Ivory Black etc.
- Customized：Mingrui ceramics can be customized according to customer requirements
Alumina Ceramic Screw Nuts Fastener Precise Head Screw And Nuts
High precision Alumina Ceramic Parts
US offers a wide variety of alumina ceramic screw and nut manufactured from high-performance technical alumina ceramic materials, Enhance performance and product life by using the material best suited to your application.
Standard ceramic fastener sizes and head styles currently available in Hex, Socket Cap, Flat Head Slotted, Flat Socket Head, Pan Head Slotted, Phillips Pan Head and Phillips Flat Head. Fastener sizes currently available 0-80, 2-56, 4-40, 6-32, 8-32, 10-32, 1/4-20, 5/16-18, 3/8-16, M2, M3, M4, M5, M6, M8 .
Parts of available us case specifications:
|
Thread Size |
Available Lengths |
|
0-80 |
1/4" |
|
2-56 |
1/4" x 3/8" x 1/2" |
|
4-40 |
1/4" x 3/8" x 1/2", 3/4", 1" |
|
5-40 |
1/4" x 3/8" x 1/2", 3/4", 1" |
|
6-32 |
1/4" x 3/8" x 1/2", 3/4", 1" |
|
8-32 |
1/4" x 3/8" x 1/2", 3/4", 1", 1 1/4", 1 1/2" |
|
10-32 |
1/4" x 3/8" x 1/2", 3/4", 1", 1 1/4", 1 1/2", 1 3/4" |
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.
Alumina reliability:
Better wear resistance
Higher volume resistivity
Greater mechanical strength
More chemically inert
...
Ceramic Precision Process:
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector
|
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 |
|
|
Alumina Ceramic Parameter:
|
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 |
|
Customization & Machining Service：
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of alumina ceramic screw nut or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics
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For more information about ceramics parts,please contact our engineers in time >>> |
 
|
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