High-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and improve the overall efficiency of the factory. Generally, the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls.
● High-speed bar pre-finishing stand, finished product stand, finished product pre-rolling stand, pre-slicing stand, slitting stand of bar rolling mill
● High-speed wire rod mill pre-finishing mill
● Hot rolling narrow and medium wide steel rolling mill finishing mill
● Finishing stand of spring flat steel mill and small section steel mills such as angle steel and channel steel
High-speed steel has high wear resistance and hardenability, especially red hardness at high temperatures, which makes high-speed steel more suitable for roll manufacturing materials.
The performance of rolls depends on the microstructure of the final roll. Obtaining high-hardness granular carbide and fine matrix structure is the basic guarantee to improving roll performance.
It can be seen from the metallographic photos that the metallographic structure of the high-speed steel roll is much better than other materials in terms of the shape, quantity, size and distribution of carbides, as well as the matrix structure and grain size.
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