The guide roll made of TiC-based Cemented Carbides are the main consumptive parts, completed together with cemented carbide roll-rings in rod and wire milling in steel industry to ensure that the heated steel can be exactly guided into roll groove to prevent steel winding and tail swing.
TiC-based Cemented Carbides and their mechanical properties
|
Grade |
Main Components |
Density
g/cm3 |
HRA hardness (20。C) |
N/mm2
Transverse Rupture Strength
(20。C) |
KN/mm2
Young’s modulus |
Coefficient of thermal expansion 10-6 |
Applications |
|
HTN-1 |
(Ti,W)C - Ni |
6.40~6.70 |
≥84.5 |
≥1500 |
370 |
7.0 |
Guide roll |
|
HTN-2 |
(Ti,W)CN- Ni |
6.35~6.55 |
≥83.0 |
≥1600 |
360 |
7.0 |
Guide roll |
Features:
-
Excellent crack resistance.
-
Good self-lubrication ability and low friction factor
-
Good wear and corrosion resistance
-
Resistance to thermal impact better than that of alloy steel, with a life time 20~50 times that of the latter.
-
Non-magnetic, not easy to be adhered by metal.
-
Smaller specific gravity, good acceleration property, prolonging bearing performance life
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