Tungsten Carbide Rings

Tungsten carbide ring is a kind of  tool material which consists of tungsten carbide and cobalt with high hardness and wear resistance. In order to make full use of these advantages, for example high wear resistance, long service life, high efficiency, you should pay attention to the followings:

1. You should select the appropriate rings to meet the rolling mills.
2. For installing the rings, you must  be exactly according to the instructions. Any incorrect operation, for example, the fitting between ring and arbor or the spacer rings is too tight or too loose, may cause the roll failing to work. It is also  very important to check if the rings confirm to the technical requires and clean the rings, arbor and spacer rings prior to rolling. It is strictly prohibited to hit the rings with hammer or other hard objects while assembling.
3. Cooling is intended to reduce the influence on roll rings thermal corrosion, fatigue and stress during milling . It can prevent the roll rings from cracking and slow down the diffusion of cracks, prolonging the life time of grooves. It plays an important role in optimizing the performances of roll rings.

In order to remove the fatigue crack completely, we need to re-dress the pass deep enough. Actually, it is quite difficult and inconvenient to check if the fatigue crack is still there or not. Here are some suggestions of re-dressing for your reference:

Roll rings for 9-10 finishing stands: 0.4-0.6mm

Roll rings for 11-8 finishing stands: 0.7-1.2mm

Roll rings for pre-finishing stands: 1.2-2.0mm