Carbide roll has high hardness, and its hardness value changes very little with temperature. The hardness value of alloy ring at 700 ℃ is 4 times that of high-speed steel; while the elastic modulus, compressive strength, bending strength, thermal conductivity It is also more than 1 times higher than that of tool steel. Due to the high thermal conductivity of the cemented carbide roll, the heat dissipation effect is good, the time for the surface of the roll to be at high temperature is short, and the high temperature reaction time of the roll with the harmful impurities in the cooling water is short. Therefore, carbide rolls are more resistant to corrosion and thermal fatigue than tool steel rolls.

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