High Purity Alumina Tube

  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
  • High Purity Alumina Tube Manufacturers, High Purity Alumina Tube Factory, Supply High Purity Alumina Tube
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High Purity Alumina Tube
  • YUNXING
  • China Jinzhou
  • 5-30 Days
  • 5,000 -10,000 / month(Looking for distributors)

The surface of alumina ceramic tube can be flame retardant and has good fire resistance. It does not affect the performance of alumina ceramic tubes at a high temperature of 1700 degrees.
Alumina ceramic tube is the nemesis of all acid and alkaline articles and other chemicals. Whether it is chemical solvents, corrosives or other chemical dyes, it will not affect the surface of alumina ceramic tube.

HIGH PURITY ALUMINA TUBE

 

The surface of alumina ceramic tube can be flame retardant and has good fire resistance. It does not affect the performance of alumina ceramic tubes at a high temperature of 1700 degrees.
Alumina ceramic tube is the nemesis of all acid and alkaline articles and other chemicals. Whether it is chemical solvents, corrosives or other chemical dyes, it will not affect the surface of alumina ceramic tube.

 

alumina tube


We only make high purity alumina ceramics


1. High-purity alumina content 99.3% -99.5%, other alumina ceramics 92% -99%.
2. The color of high purity alumina product is milky white, and other products are pink or white. The higher the purity, the more transparent the color.
3. Alumina is a refractory material, the higher the purity, the better the refractory effect
4. After high-purity alumina ceramics are fired and cooled in a 1800-degree high-temperature kiln, the products are not easy to break when they encounter high temperatures. Other ceramics are fired at 1500 ℃ ~ 1800 ℃.
5. The volume density of high-purity alumina> 3.92 g / cm3 has a smooth surface and is not easily corroded by chemicals. The bulk density of other ceramics is> 3.70 g / cm3 ~> 3.85 g / cm3.

6. High purity alumina has good hardness and good wear resistance.
7. High purity alumina products have a longer service life.


Ceramic

 

Instructions for use


When using alumina furnace tubes, it is best to control the heating and cooling rate to 5 degrees / minute, the slower the better.
Rapid cooling and rapid heating are one of the main reasons for the rupture of the alumina furnace tube. Our products have good resistance to quenching and heating.

Please keep the alumina furnace tube clean at all times, do not leave some samples in the alumina furnace tube, one side chemical reaction and cracking of the alumina furnace tube. It is recommended to   put the test sample into the crucible and alumina furnace tube.
During lofting and sampling, it is best to be within 200 degrees and slowly push from the edge to the middle. High temperature sample delivery and sampling is also the main reason for corundum tube  rupture.
Make sure to place mullite plugs on both sides of the alumina furnace tube to prevent heat radiation from damaging the silicone ring in the flange. The crucible should be placed in the middle of the alumina furnace tube.


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alumina tube

 




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Alumina ceramic performance index

NO.

Property

Unit

Alumina

1

Al2O3

%

>99.3

2

SiO2

%

-

3

Density

g/cm3

3.88

4

Water absorption

%

0.01

5

Cold compressive strength

MPa

350

6

20ºC leakage rates

Torr/L.sec

<10-11

7

Twisting in high temperature

mm

0.2 allowed in 1600ºC

8

Bonding in high temperature


not bonded in 1600ºC

9

20-1000ºC coefficient ofthermalexpansion

mm.10-6/ºC.m

8.2

10

Thermal conductivity

W/m.k

25

11

Electric insulation strength

KV/mm

20

12

20ºCdirect current

insulation resistance

Ohm/cm

1014

13

High-temperature

insulation resistance

1000ºC MΩ

≥0.08

1300ºC MΩ

≥0.02

14

Thermal shock resistance


4 times not cracked in 1550ºC

15

Maximum working temperature

ºC

1800

 

Composition table

NAMECONTENT(%)
Al2O399.3-99.5(99.7)
SiO20.3-0.5
CaO+MgO0.2-0.3
K2O+Na2O0.2-0.35
Fe2O3<0.1
OTHER<0.05


Our factory

Jinzhou Yunxing Industrial Ceramics Co., Ltd. was established in 2000, mainly producing various types of tubular ceramic products and various industrial parts with alumina content above 99.3%. The factory covers an area of 4000 square meters.
The company currently has 3 1800 ° C high-temperature furnaces and 2 1400 ° C low-temperature kilns independently designed and manufactured. The molding process is mainly based on grouting molding, and has other molding process equipment such as extrusion and hot die casting.
The company has 105 employees, including one senior ceramic engineer, three engineers, six overseas sales staff, and four professional after-sales staff.

Ceramic

Alumina ceramic tube

alumina tube


FAQ

1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: Alumina ceramic
3. Lead time: pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; 
7. Shipment: by sea, by air, by courier, by post, etc.

8. We accept customization.

9.We have professional designers.

10.We have a professional after-sales department to answer your questions.


Feedback

1. If you have any questions or questions, please contact us and we will communicate with you as soon as possible.

2. For any other satisfaction, please also feedback to us to make our service better and better.

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