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The Difference Between High Speed Steel Roll And Tungsten Carbide Roll
What are the difference between high-speed steel roll and tungsten carbide roll and its application characteristics?
Aug 9th,2020
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The Difference Between High Speed Steel Roll And Tungsten Carbide Roll
What are the difference between high-speed steel roll and tungsten carbide roll and its application characteristics?
Tungsten carbide rolls are developed on the basis of tungsten carbide tools. Tungsten carbide is made by sintering the hard phase of hard tungsten carbide particles and the bonding phase metals such as nickel and cobalt. The performance of tungsten carbide depends on the size of the tungsten carbide particles and the content of the bonding phase metal. When the bonding phase metal contains the corresponding amount of nickel and chromium, it will not only greatly improve the thermal fatigue resistance of the roll, but also improve Corrosion resistance of rolls. The hardness of cemented carbide rolls is generally controlled at 78HRA-85HRA, which is usually composed of cemented carbide roll rings and roller shafts.
tungsten carbide roll rings are used in the finishing stands of high-speed wire rod mills, as well as the pre-finishing stands of some high-speed wire rod mills and the finishing stands of bar mills. The advantages of tungsten carbide rolls are high hardness and good abrasion resistance. The rolling volume of a single groove can reach 2B of high-speed steel rolls. At present, it has advantages over other materials in the finishing stand of high-speed wire rod mills; the disadvantage is low toughness, Brittleness. When it is used in rolling mills such as the finishing stand or reducing sizing stand of a bar mill, the roll ring is often caused by the impact of the pile steel or the low-temperature material head of the rolling material due to the large rolling material specifications and the large load carried by the roll ring. rupture. The high-speed steel roll takes into account the wear resistance of cast iron rolls and the strength and toughness of cemented carbide rolls.
For more details for the high speed roll and tungsen carbide rolls, please feel free to contact info@maxcarbide.com
