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Carbon fiber and its application products

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Carbon fiber and its application products

DONACARBO Rigid Insulation

DONACARBO RIGID INSULATION, made from DONACARBO FELT, is impregnated with high carbon content resin, molded into the required shapes, hardened, carbonized, and graphitized. The feature of this product is to be superior in purity and uniformity.

Applications

Crystal growth furnaces for silicon, etc.

Sintering furnaces for carbon, ceramics, cemented carbide, etc.

Brazing furnaces for silver, copper, SUS, nickel, etc.

Various vacuum evaporation furnaces for aluminum etc.

Rigid Insulation Image
Rigid Insulation

Products and specification

  DON-1000 DON-2000 DON-3000 DON-4000
Specifications Untreated Coated Graphite-sheeted Cloth-lining
Type R(Standard, Bulk density 0.13 g/cm3), H(High thermal insulation, Bulk density 0.16 g/cm3)
Standard dimensions W 1,000mm × L 1,500mm × [ t 30mm, t 40mm, t 50mm ]
Maximum size Flat Plate W 1,300mm × L 2,000mm × t 250mm (up to W 1,600mm)
Cylinder Φ 1,600mm × H 1,200mm × t 250mm
Disc Φ 1,300mm × t 250mm (up to 1,650mm by interlocking with adhesive)

Impurities (measurement example)

Item Ash B Na Mg Al Si P K Ca Ti V Cr Mn Fe Ni Cu Zn
Measured value
(ppm)
20 1.5 0.08 0.08 1.3 0.7 <1 <0.1 5.3 0.72 2.0 <0.07 <0.08 0.28 <0.1 <0.08 <0.1

Performance

Item Bulk density
R H
Flexural strength
(Thickness direction)
0.63MPa 0.99MPa
Compressive stress
(Thickness direction)
0.13MPa 0.18MPa
Coefficient of thermal expansion 1.6×10-6/K 1.8×10-6/K
Moisture content <0.007 mass%
Tensile strength 0.04Mpa 0.06Mpa