
High Heat 99% Alumina Ceramic Three-hole Ceramic Pressure Switch
Product Description
1.Use temperatures up to 2400°C
2. High density
3. High hardness
4. Low thermal conductivity
5. Chemical inertness
6. Resistance to molten metals
7. Good Wear resistance
8. High fracture toughness
We can supply the products according to customer's drawings, samples and performance requirement.
.
Material | Alumina | Zirconia | ||||
Properties | Units | AL997 | AL995 | AL99 | AL95 | ZrO2 |
%Alumina | —— | 99.70% | 99.50% | 99.00% | 95% | —— |
Color | —— | Ivory | Ivory | Ivory | Ivory & White | ivory white |
Permeability | —— | Gas-tight | Gas-tight | Gas-tight | Gas-tight | Gas-tight |
Density | g/cm³ | 3.94 | 3.9 | 3.8 | 3.75 | 5.89 |
Straightness | —— | 1‰ | 1‰ | 1‰ | 1‰ | 1‰ |
Hardness | Mohs Scale | 9 | 9 | 9 | 8.8 | 8.5 |
Water Absorption | —— | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | 0 |
Flexural Strength (Typical 20℃) | Mpa | 375 | 370 | 340 | 304 | 1200 |
Compressive Strength (Typical 20℃) | Mpa | 2300 | 2300 | 2210 | 1910 | 5700 |
Coefficient of Thermal Expansion (25℃ to 800℃) | 10-6/℃ | 7.6 | 7.6 | 7.6 | 7.6 | 10 |
Dielectric Strength (5mm Thickness) | AC-kv/mm | 10 | 10 | 10 | 10 | —— |
Dielectric Loss 25ºC@1MHz | —— | < 0.0001 | < 0.0001 | 0.0006 | 0.0004 | 0.001 |
Dielectric Constant | 25º C@1MHz | 9.8 | 9.7 | 9.5 | 9.2 | 29 |
Thermal Conductivity (25℃) | W/m·K | 35 | 35 | 34 | 20 | 3 |
Company Introduction
Mingrui ceramic manufacture and provides alumina ceramic components
for a wide range of application like Mechanical Equipment,
Electronic & Electrical, Oil Drilling, Medical, Chemical
Industry etc. According to actual application and customer's
requirement, the purities vary from 95%-99.7% and the forming
methods will be different. The forming methods applied in our plant
include dry pressing, isostatic pressing, injection moulding,
extrusion moulding. With experienced engineers and talented
workers, we are confident to offer high quality, high precision,
complex components for customers worldwide.
General Characteristics of Materials: | ||||
Characteristic | Ceramics | Metals | Polymers | Refractory |
Density | Low to High | Low to High | Low | Low to Medium |
Hardness | High | Medium | low | Medium |
Toughness | low | High | Medium | low |
Wear Resistance | High | Medium | low | Medium |
Tensile Strength | Low to Medium |
| low | low |
Compressive Strength | High | Medium to High | low to Medium | High |
Young’s Modulus | Medium to High | Low to High | Low | Medium |
Dimensional Stability | High | low to Medium | low | / |
Thermal Expansion | Low to Medium | Medium to High | High | low |
ThermalConductivity | Medium | Medium to High | Low | Medium |
Thermal Shock | Low | Medium to High | High | low to Medium |
Electrical Resistance | High | low | High | / |
Chemical Resistance | High | low to Medium | Medium | / |
Oxidation Resistance | Medium to High | low | low | / |
Machinability | Medium | low | Medium | / |
Product Name | Chemically resistant Advanced Technical Ceramics Laser Generator |
Material | Alumina Ceramic or zirconia ceramic |
Color | white or black or customed |
Standard | according the request of customer |
Grade | first class |
Brade | Rock |
Thread | coarse, fine |
Used | Chemically resistant Advanced Technical Ceramics Laser Generator |
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is
15-20 days if the goods are not in stock, it is according to
quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay
the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
If you have any other question, pls feel free to contact us .
Dongguan Ming Rui Ceramic Technology Co.,ltd