Heattreatment (Hot Isostatic Pressing) and pressure treatmentare simultaneously applied to the powder metallurgy, and the gas is drawn into the NC furnace as pressure medium to gethard alloy with optimum uniformity and strength. Hard alloy roll rings (also called tungsten carbide roll rings), have superior performance, stable quality, high precision, better wear resistance and high impact resistance. Hard alloy roll is made from tungsten carbide, cobalt and other materials and achieved by themethod of powder metallurgy. There are two types of hard alloy roll: integral and modular.
