Dongguan Ming Rui Ceramic Technology Co.,ltd |
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Ceramic Tube for Vacuum Interrupter / Alumina Ceramic Threaded Tube
Mingrui Ceramic provides technical ceramic tubes such as alumina tubes with high purity, tight dimensional
tolerance and competitive price. Our alumina tube products with
diameter from 1mm to 100mm and purity up to 99.8% will fulfil most
of the requirements. Custom manufacturing for special shapes are
always available.
Alumina as a fine ceramic material is widely used in a lot of
industries. Alumina tubes has superb performances in electrical
insulation, high chemical resistance and low thermal expansion and
these ceramic tubes are widely used in industrial ovens and
machines. High purity alumina materials are excellent for making
alumina components for CVD, ion implants, photolithography, and
semiconductor manufacturing. In traditional industries, alumina
tubes are ideal for products such as injector tubes and insulators.
Alumina tubes are also widely used as protector for high
temperature thermal couples.
Typical materials of alumina ceramic tubes.
Composition | UNIT | AL60 | AL95 | AL98 |
AL2O3 content | % | 96 | 99.5 | 99.8 |
Color | White | Ivory | Ivory | |
Tensile strength | Kpsi | 32 | 38 | 36 |
Flexural strength | Kpsi | 52 | 55 | 54 |
Compressive strength | Kpsi | 300 | 377 | 350 |
Density | g/cc | 3.70 | 3.90 | 3.92 |
Hardness | HV, GPa | 13.8 | 17.2 | 18 |
Thermal Conductivity | W/(m K) | 25 | 30 | 30 |
C.O.T.E. | In / In°C (x10^-6) | 7.7 | 7.8 | 7.8 |
Working temperature | °C | 1500 | 1650 | 1750 |
Dielectric Constant | 9.5 | 9.7 | 9.8 | |
Volume Resistivity (25°C) | Ohm-cm | >10^14 | >10^14 | >10^14 |
Advantages:
1). Excellent insulation, security, long working life.
2). High temperature resistance
3). Resistance to electric breakdown
4). Stand wear and tear
5). High strength
6). Corrosion resistance
7). Good compactness
8). HIgh hardness
Material introduction:
Aluminium Oxide, Al2O3 is the most widely applied and cost
effective technical ceramic material. It offers a combination of
superior mechanical strength and electrical properties, wear
resistance and corrosion resistance. The maximum working
temperature is up to 1700 °C with relatively high thermal
conductivity. It is also an electrically insulating material with a
high electrical resistivity. The good corrosion resistance makes it
insoluble in water and slightly soluble in strong acid and alkaline
solution.
Available shapes:
Our Alumina Ceramic products can be made into different shapes like
ceramic rods, ceramic bars, ceramic tubes/tubings, ceramic
bushings/ceramic bushing, ceramic sleeves, ceramic seal rings,
ceramic washers, ceramic ball valves, ceramic pistons, ceramic
disks, ceramic plates/sheets/substrates or other customized shapes.
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.
Character of ceramic parts :
1. High temperture ceramics -- crucibles , nozzles , lasers ,
furnace / kiln fixtures
2. wear and corrosion resistant ceramics -- plates, hosings ,
gages , caps / lids
3. Electrical insulating ceramics --contact blocks , standoffs,
fasteners , spacers
4. Good dimension stability , no deformation at any situation
5. beatiful apprearance , never be aged and ocidated .
Industrial Ceramic Intriduction
Aluminium Oxide, Al2O3 is the most widely applied and cost
effective technical ceramic material. It offers a combination of
superior mechanical strength and electrical properties, wear
resistance and corrosion resistance. The maximum working
temperature is up to 1700 °C with relatively high thermal
conductivity. It is also an electrically insulating material with a
high electrical resistivity. The good corrosion resistance makes it
insoluble in water and slightly soluble in strong acid and alkaline
solution.
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.
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 .