Various sizes of alumina cylindrical crucible/alumina ceramic crucible

Various Size Alumina Cylindrical Crucibles /Alumina Ceramics Crucible Alumina Ceramic Crucible is mainly made of alumina. It is fired at high temperature with a special formula. It is a refractory with high fire resistance. It can withstand temperatures of 1800 degrees Celsius and high temperature resistance. It is usually

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Various Size Alumina Cylindrical Crucibles /Alumina Ceramics Crucible

 


Alumina Ceramic Crucible is mainly made of alumina. It is fired at high temperature with a special formula. It is a refractory with high fire resistance. It can withstand temperatures of 1800 degrees Celsius and high temperature resistance. It is usually used for smelting precious metals, nickel And other metals, with excellent chemical resistance and high temperature resistance.

All products through the German DIN standards: DIN43724 / DIN43725 / DIN40680
Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible



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 ºC ~ 1800 ºC.
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.

Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible

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

Other dimensions, price reference table
NUMBEROD*ID*HML(CC)SHAPEPRICE($)
136*25*5926STRAIGHT1.45
241*35*4140STRAIGHT1.45
324*20.8*50.820STRAIGHT1.16
445*41*6275STRAIGHT2.17
550*46*6090STRAIGHT2.17
660*55*60130STRAIGHT2.75
750*45*140215STRAIGHT8.12
872*55*200450STRAIGHT20.29
9190*180*1242870STRAIGHT65.22

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


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.

Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible
Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible
Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics CrucibleVarious Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible
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.
Various Size Alumina Cylindrical Crucibles/ Alumina Ceramics Crucible





 
 
 

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