High nickel chromium molybdenum alloy cast iron-based WC50 steel bond hard alloy guide roller and preparation method thereof

Abstract

The invention discloses a high nickel chromium molybdenum alloy cast iron-based WC50 steel bond hard alloy guide roller and a preparation method thereof. The high nickel chromium molybdenum alloy cast iron-based WC50 steel bond hard alloy comprising, by mass, 2.9-3.5% of C, 1.2-2.7% of Cr, 0.3-0.7% of Mo, 0.8-2.0% of Ni, 0.3-0.6% of V, 1.0-1.8% of Si, 0.5-1.0% of Mn, less than or equal to 0.02% of S, less than or equal to 0.02% of P, 0.2-0.5% of Ce, 50% of WC, and the balance Fe is adopted. The alloy is forged, annealed, machined, thermally treated, grinded, and tested, and finally the guide roller is manufactured. The prepared steel bond hard alloy guide roller has excellent physical and mechanical properties of high hardness, wear resistance, high-temperature oxidation resistance, heat shock resistance and the like, the service life of the guide roller, the production efficiency of steel rollings and the production equality are improved, the production cost is low, and the cost performance is extremely high. The guide roller has great economic benefits and social benefits.

Description

technical field [0001] The invention relates to a steel rolling guide roll, in particular to a high-chromium-nickel-molybdenum alloy cast iron-based WC50 steel-bonded hard alloy guide roll used for a rolling guide device in a steel rolling continuous rolling system and a manufacturing method thereof. Background technique [0002] The guide device refers to an important part that guides and guards the rolled piece to enter and exit the rolling mill during the steel rolling production process. deformation. Whether the design and use of the guide device is appropriate will directly affect the quality of the product and the production capacity of the rolling mill. [0003] The rolling guide device is a guide device that guides the rolled piece into the roll pass of the rolling mill when the rolling mill is rolling profiles, bars or wires. The guide roller is mainly a guiding equipment device for rolling steel that guides and assists the rapid passage of rolling billets or fini...

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Problems solved by technology

There are also reports abroad about the application of steel-bonded hard alloys in hot work dies. For example, the United States and other countries have used steel-bonded hard alloys to make single-groove or double-groove rolls for hot-rolled threaded steel bars, and for manufacturing high-speed rolling mills. Guide roller; while there are fewer reports in this area in our country

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