With the increasingly fierce competition in the steel product quality and price market, steel companies on the one hand constantly update their own equipment technology, and constantly improve the rolling speed of the mill; at the same time, how to reduce the number of mill downtime, and further improve the effective operation rate of the mill, has become an important issue of concern to steel rolling engineers. The use of roll materials with higher rolling life is one of the important means to achieve this goal.
Cemented carbide roller have been commonly used in the production of bars, wire rod, rebar and seamless steel pipe because of their good wear resistance, high temperature red hardness, heat fatigue resistance and high strength, which has greatly improved the effective operating rate of the mill. According to the differences in the working environment of each stand roll, various grades of carbide roll rings have been developed
Cemented carbide rolls are developed on the basis of cemented carbide tools, which is a kind of metal-ceramic tool material prepared by powder metallurgy method with refractory metal compounds (WC, TaC, TiC, NbC, etc.) as matrix and transition group metals (Co, Fe, Ni) as bonding phase. It has a series of excellent properties such as high hardness, high red-hardness and high wear resistance. Sometimes a certain amount of nickel, chromium and other elements are added accordingly to obtain corrosion resistance.
The tungsten carbide roll ring replaces the traditional cast iron and alloy steel rolls and has shown a lot of superiority, with the continuous development of roll manufacturing technology and use technology, will continue to expand the use of carbide rolls, its position in the rolling process will become more and more important, and the application prospects will be very broad!
Post time: May-07-2023
