Producing technique for forging and rolling manganese metal

Abstract

The invention relates to a novel artistic technique of producing rolling and forming manganese metal. The invention aims at producing a high-purity metal manganese ball group after being forged and rolled and vacuum hardening burning treatment. The invention is characterized in that the manganese ball group has the regular shape, fixing size and each individual of the ball group individual is completely identical. The invention employs the technique of secondary recrystallization and high-heat pressure forging and rolling, and firstly employs high-strength roll-type forging and rolling apparatus, the powder of the manganese metal is pressed and formed instantly, and also uses the instant high temperature produced by compression to generate the first crystal phase transformation which has fixed physical shape, secondly, the shaped forging and rolling manganese is positioned inside a vacuum smelting-furnace to proceed vacuum hardening burning in certain vacuum condition and at designated temperature in order to generate the second crystal phase reconstruction and transformation, thereby further improving physical property of the machinery.

Description

technical field [0001] The invention relates to a new production technology for producing manganese metal formed by forging and rolling. The purpose of the invention is to obtain a new type of manganese-based ferroalloy material superior in use and quality to traditional electrolytic manganese flakes and manganese blocks. Background technique [0002] Metal manganese is an indispensable alloying element in steel. Manganese metal, especially high-purity electrolytic manganese metal, is now more and more widely used as a deoxidizer and desulfurizer in steel production and multi-component alloy steel and stainless steel smelting and manufacturing. At present, in the iron and steel smelting industry, manganese is used as an alloy additive mainly in the form of electrolytic metal manganese flakes, electrolytic metal manganese powder, and smelted metal manganese blocks. However, directly adding electrolytic manganese flakes to the molten steel in the furnace can easily cause oxi...

AI Technical Summary

Problems solved by technology

The disadvantage of iron and steel enterprises using this kind of manganese block is that it is irregular in shape and inconsistent in size, especially it is easy to contain too much metal manganese powder produced in the crushing process, which makes iron and steel smelting enterprises use it in the furnace, measure and control the alloy composition, etc. On the one hand, it brings inconvenience and errors, and in the production process of manganese block smelting in the intermediate frequency furnace, it is often necessary to add auxiliary materials such as decarburization, deoxidation, and desulfurization agents, which makes the manganese block manganese content not high and has more impurities, which makes the metal Manganese nuggets are greatly limited in high-quality alloy smelting

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