High-speed roll

High-speed steel rolls are an important tool used in the metal rolling process. It is made of high-speed steel material, which has excellent wear resistance, high-temperature strength and hardness, and is suitable for high-speed, high-temperature and high-pressure rolling working environments.

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SANXIN

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The unique advantages of the product

1. The high-speed steel roll material contains high alloying elements such as vanadium, tungsten, chromium, molybdenum, niobium, etc., and the types of carbide in the roll structure are mainly MC type and M2C type, with high carbide hardness and good wear resistance.

2. The high-speed steel roll has good thermal stability, and the roll surface has high hardness and good wear resistance at the rolling temperature.

3. The high-speed steel roll has good hardenability, and the hardness from the surface of the roll body to the inside of the working layer is almost not reduced, so that the roll has the same good wear resistance from the outside to the inside.

4. In the process of using high-speed steel rolls, under good cooling conditions, a thin and dense oxide film is formed on the surface of the roll body, and this uniform, thin and dense oxide film can exist for a long time without falling off, which significantly improves the wear resistance of high-speed steel rolls.

5. The expansion coefficient of high-speed steel roll material is large, the thermal conductivity is good, the roll is slightly worn with the groove during the rolling process, and the hole type is constantly smaller due to the expansion of the high-speed steel material itself, therefore, the groove change of the high-speed steel roll in the rolling process is small, and the consistency of the hole size is maintained for a long time, especially when rolling bars or rebars, it is more conducive to controlling the negative tolerance of the rolled product.

6. Because the core of the centrifugal casting high-speed steel roll is made of alloy ductile iron material, the roll neck strength is high.