What is tungsten carbide roll rings?

Tungsten carbide roll rings are specialized components used in the manufacturing process of mill rolls. These rings are designed to provide extended life and durability in applications where long rolling campaigns are required. They are commonly used in wire rod finishing blocks and certain shaping applications.

The main advantage of tungsten carbide roll rings is their extreme hardness, which allows them to withstand high levels of wear and abrasion. Compared to ordinary steel, these rings offer significantly improved wear resistance, strength, and toughness. They have a service life that is ten times longer than that of regular steel components, making them ideal for harsh abrasion environments.

Tungsten carbide roll rings are typically made from cemented carbides, which are divided into two main categories: conventional WC-Co alloys and corrosion-resistant alloys with a mixed binder Co-Ni-Cr. The specific composition of the binder varies based on the requirements of the rolling mill.

The mechanical properties of tungsten carbide roll rings are impressive. The bending strength can reach up to 2200 MPa, while the impact toughness ranges from 4 to 6 x 10^6 J/m^3. The hardness and wear resistance of the rings come from the tungsten carbide (WC), while the toughness and strength depend on the binding agents (Co-Ni-Cr).

Overall, tungsten carbide roll rings offer exceptional durability and performance, making them a preferred choice in industries that require reliable and long-lasting mill rolls.