Soft Graphite Felt for Heat Insulation in vacuum Furnace

Product Description

soft graphite felt for heat insulation in vaccum furnace:
A PAN

Carbon/Graphite Soft Felt /Pan Based	PSF1	PSF2	PSF 3	PSF 4
Treat Temperature oC	1100	1800	2200	2600
Bulk density g/cm3	0.15	0.12	0.11-0.12	0.10-0.12
Carbon content %	≥95.5	≥97.2	≥99.95	≥99.99
Ash content %	≤0.7	≤0.3	≤0.01	≤0.005

Carbon/Graphite Rigid Felt /Pan Based	PRF 1	PRF 2	PRF 3	PRF 4
Treat Temperature oC	1100	1800	2200	2600
Bulk density g/cm3	0.23-0.26	0.24-0.25	0.18-0.24	0.18-0.22
Carbon content %	≥95	≥97	≥99.9	≥99.99
Ash content %	≤0.75	≤0.4	≤0.02	≤0.008

Special property requirements specially produced.
Anticorrosion cover available(Graphite cloth, Graphite foil, Pitch Painting, etc)
Machine work done to drawing
Size

Carbon/Graphite Soft Felt / Pan Based	Length	Width	Thickness
Size Range	0-24m	0-1.35m	0-13 mm
Standard Size	12m	1/1.2m	3/5/6/8/10/12/12.7 mm

Carbon/Graphite Rigid Felt / Pan Based	Length	Width	Thickness
Size Range	0-1.7m	0-1.5m	18-600 mm
Standard Size	1/1.5m	1/1.5m	20-600 mm

B RAYON

Carbon/Graphite Soft Felt / Rayon Based	RSF1	RSF2
Treat Temperature oC	1100	1800
Bulk density g/cm3	0.12	0.08
Carbon content %	≥91	≥99
Ash content %	≤1.0	≤0.1

Special property requirements specially produced.

Carbon/Graphite Soft Felt / Rayon Based	Length	Width	Thickness
Size Range	0-24m	0-1.2m	0-13 mm
Standard Size	12m	1/1.2m	3/5/6/8/10/12/12.7 mm

Anticorrosion cover available(Graphite cloth, Graphite foil, Pitch Painting, etc)
Machine work done to drawing
C PITCH

Carbon/Graphite Rigid Felt / Pitch Based	HRF1
Treat Temperature oC	2200
Bulk density g/cm3	0.16
Carbon content %	≥99.98
Ash content %	≤0.02

Special property requirements specially produced.

Carbon/Graphite Rigid Felt / Pitch Based	Length	Width	Thickness
Size Range	0-1.7m	0-1.5m	18-600 mm
Standard Size	1/1.5m	1/1.5m	20-600 mm

Anticorrosion cover available(Graphite cloth, Graphite foil, Pitch Painting, etc)
Machine work done to drawing

Physical and chemical index:
The graphite felt is formed after above 2000ºC high temperature treatment under inert gas or vacuum.
The polypropylene cyano is the major raw material. The polypropylene cyano carbon felt or rayon-based carbon feltis cuttd into the specific dimension, and loaded into the graphite vessel after rolled. The graphite vessel will be setted in the high temperature furnace, protected in vacuum or by high pure inert gas. It's heated up to 2200-2500ºC with the heating rate 100-300ºC/h, then get the final product after naturally cooled to 100ºC .
Our company is the professional manufacturer and exporter for carbon and graphite  products. our company was established at 2000.Our factory is located in Beijing city.and 50 kilometers from Beijing airport.
We mainly produse graphite rod, graphite block, graphi.te crucible,graphite mould, graphite bearing,graphite felt,carbon fiber cloth,etc.
make it according to drawing and specifications.
for the graphite,We have mold graphite,isostatic graphite,extruded graphite,vibration graphite. bulk density from 1.6g/cm3 to 1.91g/cm3.
Carbon-graphite products for electron and semiconductor industry
 Carbon-graphite products for application of processing by industrial furnace under high temperature;--
Carbon-graphite products for sintering mold of diamond tools
 Carbon-graphite products for non-ferrous metallurgy and processing; 
 Carbon-graphite products for mechanical industry; 
Carbon-graphite products for high-tech field  
Carbon-graphite products for EDM
Carbon-graphite products for aviation and aerospace industry
We believe that duo to our high quality graphite material and formed graphite parts at very competitive prices with professional service,broad product knowledge and technical expertise can help you save much resource and improve your efficiency,and satisfy more of your customers' needs.