Active Member
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[China]
Address: NO 21st ChuangXing Road, Shangsha community , Changan Town, Dongguan city Guangdong province, China
Contact name:Admin deng
Dongguan Ming Rui Ceramic Technology Co.,ltd |
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High Purity Alumina Ceramic Thermocouple Protection Tube With One
End Closed
1.material: 95% alumina
2.Length:400mm, ID3.8-4.5mm,,OD5.8-6.5mm
3.Temperature:1450%
4.Tolerance:+/-0.01mm
5.Type: one end closed tubes
Usage: The alumina tubes are widely used in thermocouple protections and
some are used in furnaces.
Ceramic parts are very abrasion resistant and offer long life in
applications where other materials
would wear out quickly.
Mingrui produces 99.5% alumina ceramic tubes for high
temperature applications, our tubes include ceramic furnace tubes, ceramic thermocouple protection tubes and
electrical insulation ceramic rods.
Ceramic Furnace Tubes
Ceramic furnace tubes are mainly made of high purity 99.5% alumina
ceramics, the tubes are used as ceramic liner of high temperature
furnace, the function is to separate the heating elements from
materials which are burned. Standard sizes are OD27~120mm and
length100~1750mm.
Ceramic Thermocouple Protection Tubes
The tubes are mainly used in temperature measurement application
for thermocouples, it will separate measurement elements from
external environment, reducing or preventing the elements from
being eroded, oxided or damaged. Standard sizes are OD5~50mm and
length 100~1750mm.
Electrical Insulation Ceramic Rods
The rods are insulators for thermocouples, the function is to
separate different polars of temperature measurement elements to
avoid bipolar interference or short circuit. Standard sizes are
OD1~12mm and lenth0.3~500mm with one bore, two bores, four bores or
multi bores.
Warranty
1. If any broken during shipment, we will send replacement for free
or send back your payment. (In case we arrange the shipping).
2. If tolerance is not same with what we discussed, we will send
replacements.
3. Standard sizes.
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. |
Packaging & Shipping
Packing: Export Wooden Box
Our Primary Competitive advantages
1. 10 years of precision machined experience.
2. Big customer long time cooperation experience.
3. Experienced R&D Department; OEM or ODM according to buyer’s
requirement.
4. Reasonable price.
5. Strict quality control and timely delivery guaranteed.
6. Trial order or small order acceptable.
7, Additional value such as creative innovation.
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 .
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 .
