We provide a variety of pressing rollers material to select, with different performance and life span, the diverse options of roller materials come from our long term continuous R and D efforts, esp the combination of tungsten carbide and titanium nitride.
The combination of WC and TiN coating on rollers is our patent technology, first treat roller surface with tungsten carbide (WC), fine grinding, then titanium nitride(TiN) treat the roller surface to compensate weak points of WC treatment, the roller has absolute advantages:
1.Stainless roller surface.
2.Surface roughness ≤0.01mm.
3.No material sticking onto roller
4.No roller wearing contamination to lithium coated strip.
5.Hard TiN surface and solid WC base are against sand holes.
6.5 times wearing capacity than normal roller material.
7.One year guarantee without grinding.
Roller material |
9Cr3Mo |
Surface hardness |
HRC67-68 |
Roller circular runout tested on grinder |
≤0.0015mm |
Roller circular runout on assembled mill |
≤±0.002mm |
Roller surface roughness |
Ra≤0.0002mm |
Roller surface coating |
Hard chrome 0.10-0.12mm, HV925 |
|
WC(Tungsten carbide) ≥0.12mm HV1450 |
|
TiN (titanium nitride 0.003mm HV2200 |
|
Combination of WC and TiN coating |
Roller surface treatment |
Hard chrome coated rollers |
WC coated roller |
WC and TiN coated roller |
Life time |
2-3 months once grinding |
2000000-5000000meters electrode piece press |
4000000-8000000meters press |