The Difference between Tungsten Carbide Rolls And Ceramic Rolls

The difference between Tungsten Carbide Rolls and Ceramic Rolls

From the point of view of material composition, the tungsten carbide rolls are mainly made of refractory metal compounds (e.g. tungsten carbide WC, titanium carbide TiC, etc.) as the matrix, and transition group metals (e.g. cobalt Co, nickel Ni, etc.) as the binder phase, which are prepared by powder metallurgy process. This special combination of materials gives the tungsten carbide rolls very high hardness, wear resistance and thermal fatigue resistance, so that it can withstand high temperature, high pressure and high speed rolling process of intense wear. Ceramic rolls, on the other hand, are based on ceramic materials and processed by special techniques. The ceramic material itself has a very high hardness and excellent corrosion resistance, so that the ceramic roll in the rolling process performance, especially in the roll surface finish and corrosion resistance have high requirements of the occasion.

In terms of performance characteristics, tungsten carbide rolls are known for their wear resistance and thermal fatigue resistance. Its high hardness and good thermal stability enable it to operate stably for a long time in a high-temperature, high-load rolling environment, which greatly improves the operating efficiency of the mill. In addition, cemented carbide rolls also have good thermal conductivity, can be quickly rolled in the process of heat dissipation out, reduce the surface temperature of the roll, reduce thermal stress on the roll damage. The ceramic roll is characterized by its high hardness, corrosion resistance and high temperature stability. The special properties of ceramic materials make ceramic rolls in the rolling process is not easy to be eroded by chemicals, can maintain the surface finish and precision of the roll for a long time. At the same time, ceramic rolls can also maintain stable performance at high temperatures, and will not be deformed or softened due to temperature rise.

In the field of application, tungsten carbide rolls are widely used in the rolling production of iron and steel, non-ferrous metals, alloy materials and other industries because of their excellent performance. Especially in the high-speed wire rod mill, finishing mill and other high-intensity, high-load rolling environment, carbide tungsten carbide rolls play an irreplaceable role. Ceramic rolls, on the other hand, are widely used in the hot and cold rolling production lines of the iron and steel industry, ceramic production, glass processing and electronics industry due to their high hardness, corrosion resistance and high-temperature stability.