sintered tungsten carbide

Usually we don’t recommend grinding hard very materials like tungsten carbide with one of our mills, but in this case, the original sample which has been provided is just made of very fine, sintered material.

For this, a comminution of higher amounts (30-100 kg as requested) might be possible. To determine possible abrasion off the grinding disks, we used a very precise balance to check the weight of movable and fixed grinding disk (8,3765 kg and 8,7400 kg).

Most of the fed particles use to be < 2 cm (which is essential to avoid a jamming of the feeding funnel). In this case, a few particles with up to 3 cm length can be found. There was no problem to grind these particles as well. A support of feeding (with e.g. a pencil, wood stick, etc.) was not necessary.

Ground particles use to be < 100 µm in one dimension when particles will be able to pass the gap of the grinding disks. For this, still longer pieces can be found afterwards (~ up to 200-250 µm).

We ground the first 15 kg in batches of 5 and 10 kg, and now the last 15 kg which have been provided on block within 6 minutes. Even after a total of 30 kg, possible abrasion was not detectable with our balance (< 0,1 g).

For a grinding of 100 kg of your kind of material, about 40-50 minutes might be necessary.