Forged steel rolls

Through smelting, forging and heat treatment, the working layer of the forging steel roll body has uniform high hardness, high wear resistance and excellent anti-accident ability, and at the same time ensures that the roll neck and the core of the roll body have a certain strength and high toughness. This unique property of forged steel rolls makes it irreplaceable in cold rolling and non-ferrous rolling. According to the conditions of use, forged steel rolls can be divided into forged steel hot rolls and forged steel cold rolls, forged steel hot rolls are mainly used for hot rolling billet and section steel rough rolls, forged steel cold rolls are widely used in cold rolls. Forged steel cold rolled roll use requirements are high, the surface of the roll body must have high and uniform hardness, in order to ensure the dimensional accuracy and good surface quality of the cold rolled strip or steel plate, the roll body has a certain hardened layer depth, with high anti-accident ability, for this reason, the original structure of the roll is very strict, one is the pure metallurgical quality, the other is the uniformity of the structure. At present, China mainly uses the cold rolled roll material containing about 2% chromium, and the working layer above HS90 is about 10mm, and the newly developed Cr5 series cold rolled roll containing 5% chromium, the working layer above HS90 is more than 30mm, and the excellent performance of Cr 5 series cold rolled work roll in all aspects will gradually replace the traditional use of Cr 2 series cold roll, and become the development direction of cold rolled work roll.

Leave a Reply

Your email address will not be published. Required fields are marked *