CN / EN
Product
Product
HIGH PURIFIED RIGID GRAPHITE BOARD/CYLINDER
The thermal field of sapphire furnace is usually wrapped with graphite soft felt. Our rayon-based and pan-based graphite felts have high purity and high processing temperature, which can fully meet the thermal insulation requirements of the thermal field. Our company also designed and developed a viscose-based curing felt for the use in the thermal field, which improves the stability of the thermal field and reduces the power consumption of the thermal field.

Category High purified rigid graphite board/cylinder

Online consultation
Product Details

Ultra Pure Hard Composite Felt

Technical Specifications

Technical Specifications

Unit

Measure ambient temperature (℃)

HighPuritySol idification Felt

(S-level)

密度(Volume Density)

g/cmᶟ

20℃

0.15-0.30max

Specific Resistance

Longitudinal

Ω-mm

20℃

2.0*10^-4

Transverse

Ω-mm

20℃

3.5*10^-4

compressive strength(5%deformation)

Longitudinal

Mpa

20℃

1.8

Transverse

Mpa

20℃

1.3

bending strength(5%deformation)

Longitudinal

Mpa

20℃

2.3

Transverse

Mpa

20℃

1.8

Heat shrinkage rate 

10^-6

3000℃

2.5±0.5

Water Absorption(90%relative humidity)

weight%

20℃

<0.1%

Carbon Content

%

25*℃

≥99.9

Ash Content

PPM

25℃

≤5PPM

Specific Heat(average)

W-sec/(g.K)

1400℃

1.72

Sublimation Temperature 

\

3600

Thermal Conductivity

W/(m-K)

1400℃

vacuum:0.25

argon:0.35

Processing Temperature

\

≥2200

Available Size

mm

\

board:≤1600

barrel:Φ≤1600

thickness:20-200

External surface treatment

\

\

1: Paste graphite thin paper

2: Attach carbon fiber cloth