High Thermal Conductivity 99% Alumina Ceramic Three-hole Ceramic
Pressure Switch
Product Description
Advantages:
1). Excellent insulation, security, long working life.
2). Excellent high temperature resistance
3). Low thermal expansion coefficient
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-- Material: Alumina,Steatite,Cordierite,Mullite
-- Can be made according to customers' drawing
-- Chemically inert, anti-acid, anti-alkaline
-- Superior reliability and durability
-- Excellent resistance to heat. Maintain the mechanical strength
in high temperature circumstances.
| 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 |
High
| 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 .
