Wear-resistant high-vanadium-nitrogen high-speed steel section steel roll and manufacturing method thereof

Abstract

The invention relates to a wear-resistant high-vanadium-nitrogen high-speed steel section steel roll and a manufacturing method thereof and belongs to the technical field of steel rolling. The wear-resistant high-vanadium-nitrogen high-speed steel section steel roll is compounded by hot charging a high-vanadium-nitrogen high-speed steel roll sleeve and a medium carbon steel roll shaft, wherein the high-vanadium-nitrogen high-speed steel roll sleeve is prepared from the following components in percentage by mass: 20-24 percent of M2 high-speed steel (also called W6Mo5Cr4V2 high-speed steel) scraps, 4.5-4.8 percent of vanadium-nitrogen alloy, 1.8-2.2 percent of ferrocolumbium, 55-59 percent of Q235 steel scraps, 10-12 percent of carbon ferrochrome, 1.2-1.4 percent of electrolytic nickel, 0.30-0.45 percent of ferrotitanium and 1.2-1.4 percent of metal aluminum burdens and is prepared by the following steps of smelting the components by an electric furnace, pouring on a centrifuge to form a roll sleeve, annealing, rough machining, quenching, tempering and finish machining. The high-vanadium-nitrogen high-speed steel roll sleeve is compounded with the medium carbon steel roll shaft together in a hot charging manner, and a compound is used on a section steel mill and is excellent in wear resistance.

Description

technical field [0001] The invention discloses a shaped steel roll and a manufacturing method thereof, in particular to a wear-resistant high-vanadium nitrogen high-speed steel shaped steel roll and a manufacturing method thereof, and belongs to the technical field of steel rolling. Background technique [0002] Rolls are an important tool in steel rolling production. Reducing the energy consumption of rolls can effectively reduce costs and increase efficiency, improve the operating rate of rolling mills, improve the quality of rolled products, and reduce the labor intensity of workers. At present, the rolls in the section steel workshop of large-scale rolling mills mainly include: BD rolls, universal rolling mill rolls and straightening rolls, etc. Among them, the universal rolling mill rolls include horizontal rolls and vertical rolls, which are one of the key parts on the rolling mill and are installed in the window of the rolling mill archway. In the production of hot-ro...

AI Technical Summary

Problems solved by technology

[0011] However, the current section steel rolls generally have the disadvantages of low hardness and poor wear resistance.

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