UHP450mm For Zirconia And Large Crystal Smelting

UHP450mm For Zirconia And Large Crystal Smelting

Products Description UHP450mm for zirconia and large crystal smelting UHP450mm graphite electrodes are used in two different industrial processes: zirconia smelting and large crystal metallurgy. Zirconia Smelting: Zirconia, also known as zirconium dioxide (ZrO2), is a high-performance ceramic...
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Products Description

UHP450mm for zirconia and large crystal smelting

UHP450mm graphite electrodes are used in two different industrial processes: zirconia smelting and large crystal metallurgy.

Zirconia Smelting: Zirconia, also known as zirconium dioxide (ZrO2), is a high-performance ceramic material with various applications including refractory materials, ceramics, and dental prosthetics. The UHP450mm graphite electrode generates an arc between the electrode and the raw materials, typically zirconium compounds, heating and melting them to produce liquid zirconia. The liquid zirconia is then processed and shaped into various forms to meet specific industrial application requirements such as refractory bricks, ceramic coatings, and dental crowns.

Large Crystal Metallurgy: Large crystals such as silicon wafers used in the semiconductor industry are manufactured using methods like Czochralski or Bridgman-Stockbarger. The arc generated by the UHP450mm graphite electrode provides the high temperature required for melting the raw materials. As the molten material cools down and solidifies, large crystals grow from the melt which can be cut into wafers for manufacturing semiconductor devices.

UHP450mm graphite electrodes play a crucial role in both zirconia smelting and large crystal metallurgy processes. Their application enables efficient melting of raw materials to produce liquid zirconia for use in various high-performance applications such as refractories, ceramics, and semiconductors where large crystals are utilized.

Physical & chemical properties of UHP graphite electrode and nipples

HS CODE:8545110000

 

Item

Unit

Diameter 450(454-460)mm

UHP Graphite Electrode

Nipple

Guaranteed

Typical

Guaranteed

Typical

Resistivity ≤

UΩ*m

6.3

5.0-6.0

5.3

3.8-4.5

Flexural strength≥

MPA

10.5

11.0-13.0

20

20-25

Young’s modulus≤

GPA

14

8-12

20

12-16

Bulk density≥

G/CM3

1.66

1.68-1.73

1.75

1.76-1.82

CTE(100 ℃-600℃) ≤

10-6/℃

1.5

1.3-1.5

1.4

1.0-1.3

ASH ≤

%

0.5

0.2-0.4

0.5

0.2-0.4

Note:We can provide lengths of 1600/1800/2000/2200mm for UHP450 graphite electrodes. Of course, we can also customize the length according to customer requirements.

Recommended current load of electrode

 

 

Grade

 

Inch

 

Nominal Dia

Allowable current

Current density

AC

DC

AC

DC

 

 

 

 

UHP Graphite Electrode

10

250

10000-13000

-

14-18

-

12

300

13500-20000

-

14-18

-

14

350

20000-32000

-

20-32

-

16

400

25000-41000

-

20-32

-

18

450

32000-49000

-

20-30

-

20

500

40000-60000

-

20-30

-

22

550

45000-68000

49000-78000

18-28

20-32

24

600

52000-81000

58000-93000

18-28

20-32

26

650

60000-85000

64000-100000

18-28

20-32

28

700

71000-100000

79000-120000

18-27

20-30

30

750

82000-123000

91000-135000

18-27

20-30

Recommended current load of electrode

 

 

Grade

 

Inch

 

Nominal Dia

Allowable current

Current density

AC

DC

AC

DC

 

 

 

 

UHP Graphite Electrode

10

250

10000-13000

-

14-18

-

12

300

13500-20000

-

14-18

-

14

350

20000-32000

-

20-32

-

16

400

25000-41000

-

20-32

-

18

450

32000-49000

-

20-30

-

20

500

40000-60000

-

20-30

-

22

550

45000-68000

49000-78000

18-28

20-32

24

600

52000-81000

58000-93000

18-28

20-32

26

650

60000-85000

64000-100000

18-28

20-32

28

700

71000-100000

79000-120000

18-27

20-30

30

750

82000-123000

91000-135000

18-27

       20-30

 Recommended Tighening Torque

Electorde Dia

Torque

250

800

300

900

350

1300

400

1550

450

1850

500

2400

550

2750

600

3800

650

4300

700

5200

750

6800

   
Application of UHP450mm for zirconia and large crystal smelting

Application of UHP450mm for zirconia and large crystal smelting

UHP450mm graphite electrodes are used in zirconium oxide smelting and large crystal metallurgy.

Zirconium Oxide Smelting:

Zirconium oxide, or zirconia (ZrO2), is a high-performance ceramic material widely used in refractories, ceramics, and dental restorations. The UHP450mm graphite electrode generates an electric arc with zirconium compounds (raw materials), melting them to produce liquid zirconium oxide.

Large Crystal Metallurgy:

The UHP450mm graphite electrode is also used in the process of producing large single crystals such as silicon wafers for the semiconductor industry. The generated electric arc provides high temperatures for melting high-purity silicon or other semiconductor materials. As the molten substance cools and solidifies, large crystals grow from the melt, which can be sliced into wafers for manufacturing semiconductor devices.

1

2

3

 

Packing and shipping

UHP450mm packaging is generally 2 pieces per pallet, but it can also be customized according to customer requirements.

FAQ

1. Are you a Manufacturer or Trader?

We are manufacturer,we have our own factory.

2. What about the lead time for mass product?

The lead time is based on the quantity, about 15-20days.For graphite product,apply Dual-use items license need about 15-20 working days.

3. What is your terms of delivery?

We accept FOB,CFR,CIF,EXW,DAP,DDP,etc.You can choose the most convenient way for you.Besides that,we can also shipping by Air and Express.

4. Product packaging?

We are packed in wooden cases,or according to your requirements.

 

 

 

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