OJSC «SvetlogorskKhimvolokno»
Eng

URAL™ - CARBON FABRIC/GRAPHITE FABRIC (RAYON FILAMENT BASED)

  • precursor – rayon technical filament yarn;
  • depending on the assortment, carbon content can be adjusted in the range 90-99%;
  • elementary fiber is 0.05-0.09 tex

 PROPERTIES

  • Stability in non-oxygen medium 3000°C max;
  • Stability in oxidizing medium 400-450°C max; short-term - 1500°C;
  • Insensitivity to electromagnetic emission;
  • Filament Tensile Strength 1.2 - 1.5 GPa;
  • Average Tensile Modulus 60 GPa;
  • High elasticity;
  • High chemical resistance to attacks by acids, alkali, solvents at high temperatures;
  • Electrical conductivity.

APPLICATION 

Examples are based on present state of knowledge we have. Material’s unique properties allow other problems also to be solved. It is a reason of close cooperation with users and processing companies when needed.

  • Carbon reinforced carbon composites (RCC);
  • High temperature thermal insulation: industry of pyro-composites (refractory, vacuum furnaces, CZ-crystal pullers, glass industry);
  • Ablative composites;
  • Flexible and rigid electric heaters;
  • Antistatic dissipation;
  • Catalyst carriers
  • Creating of RADAR-invisible objects - reduction of radar area.
  • If needed - 100% absorption of electromagnetic interference (“clean room” technology).
  • EMI shielding (especially Ni-content carbon fibers).

URAL™ SPECIFICATION

KIND OF FABRIC       →

TM-4

T-P

T-1

T-2

T-8S

T-0.5

Count of thread ends per 5 cm:

Warp

195

98

98

98

140

110

Weft

120

70

70

65

100

80

Surface density, gms/m2

1100±100

335±30

170±20

300±30

290±30

120±20

Width of the fabric, cm

50±5

50±5

55±5

42±4

50±5

55±5

Thickness, mm

1.7-1.9

0.45-0.65

0.25-0.35

0.40-0.60

0.33

0.14-0.20

Breaking strength, N/5 cm                                 

warp

2940

981

750

900

900

500

weft

686

343

250

300

300

200

Ash content, %

1.0-1.5

1.0-1.5

2.0

1.0-1.5

0.5

0.5

Specific resistance, Ohm, max

0.5

1.0

0.5

0.5

1.5

Humidity, %, max

1.0

1.0

1.0

1.0

1.0

1.0

TM-4 is 4-layer fabric, layers are bonded by linen weaving repeating.
T-P is twill weave 2x2 fabric.         T-1 - twill weave 2x2.      T-2 - linen weave 1x1.    T-8S - 8 harness satin.
TEMPERATURE OF GRAPHITATION: 2200 ºC 
Fabric is on paper roll (60 mm diameter min).
Roll  length is 700±30 mm. In every roll  only 1 (one) piece of fabric.
Fabric weight: 5kg min; 3 kg weight is allowed for 10% of pieces in the lot.
Roll of fabric is wrapped into polyethylene (PE) film and then packed into cardboard box.