Low carbon chromium-molybdenum steel based WC50 steel bond hard alloy guide roller and manufacturing method thereof

Abstract

The invention discloses a low carbon chromium-molybdenum steel based WC50 steel bond hard alloy guide roller and a manufacturing method thereof. Low carbon chromium-molybdenum steel based WC50 steel bond hard alloy including the chemical components of, by mass percentage, of 0.25-0.3% of C, 0.5-0.6% of Cr, 0.25-0.3% of Mo, 0.6-0.7% of Mn, 0.4-0.6% of Si, 50% of WC and the balance Fe is adopted, and then the low carbon chromium-molybdenum steel based WC50 steel bond hard alloy is subjected to forging, annealing, machining, heat treatment, grinding and detection, so that the guide roller is finally obtained. The steel bond hard alloy guide roller prepared through the method has the excellent physical and mechanical properties of high hardness, abrasion resistance, resistance to high temperature oxidation, resistance to heat impact and the like, the service life of the guide roller is prolonged, the steel rolling production efficiency and product quality are improved, the production cost is low, quite high cost performance is achieved, and great economic and social benefits are achieved.

Description

technical field [0001] The invention relates to a steel rolling guide roll, in particular to a low-carbon chromium-molybdenum steel-based WC50 steel-bonded hard alloy guide roll used for a rolling guide device of a 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 finished products. The guide ...

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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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