A process for smelting high manganese steel

By combining the medium-frequency furnace and the LF furnace, and using additives such as lime and fluorite, low-cost and high-efficiency production of high-manganese steel has been achieved. This solves the problems of high consumption, long cycle, alloy waste and large quality fluctuations in the traditional smelting process, and improves production efficiency and yield.

CN116694982BActive Publication Date: 2026-05-29SHANXI TAIGANG STAINLESS STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI TAIGANG STAINLESS STEEL CO LTD
Filing Date
2023-06-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The smelting process of high manganese steel is characterized by high consumption, long cycle, serious alloy waste, large quality fluctuations, and numerous inclusions, which are difficult to effectively solve with existing technologies.

Method used

The process route of medium-frequency furnace → LF → ingot casting is adopted. Through the smelting of all scrap steel, the refining in medium-frequency furnace and LF furnace, and the addition of additives such as lime, fluorite, calcium silicate powder, and aluminum powder, deoxidation and composition adjustment are carried out to avoid oxygen blowing reduction and achieve high-efficiency production of high-manganese steel.

Benefits of technology

This has enabled low-cost and high-efficiency production of high-manganese steel, shortened the smelting cycle, improved manganese yield and product quality stability, reduced inclusions, and increased production efficiency and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of smelting, and proposes a low-cost high manganese steel smelting process method, which adopts full scrap steel smelting of a medium-frequency furnace and LF refining treatment, adopts a process route of'medium-frequency furnace -> LF -> mold casting', reduces the addition amount of valuable alloy of high manganese steel and smelting cost, does not need oxygen blowing and reduction in the whole smelting process, reduces inclusions generated in the normal smelting process, has a short process flow, simple treatment, and shortens the smelting period. The recovery rate of manganese can reach more than 99% by using the process, and good economic and social benefits are generated.
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