High manganese steel and preparation method thereof

Abstract

The invention discloses high manganese steel, which consists of the following components in percentage by weight: 0.9-1.2 % of C, 11-14 % of Mn, 0.3-0.6 % of Si, 1.5-2.5 % of Cr, less than or equal to 0.04 % of P, less than or equal to 0.04 % of S, and the balance of ferrum. A preparation method for the high manganese steel comprises the following steps of: selecting raw materials; performing smelting, namely preparing molten steel only after the components are ensured to be qualified, and controlling the temperature of the molten steel to be 1,650 DEG C for casting; performing modeling, painting after the modeling is finished, and performing mold assembly and casting; performing cleaning, namely deburring castings, and polishing and checking the castings; performing thermal treatment, namely stacking the cleaned castings in a high-temperature thermal treatment furnace, sealing a furnace door, raising the temperature to 1,100 DEG C, preserving the heat for 4 hours, quickly discharging the castings out of the furnace, and placing the castings into water for quenching; and cleaning the surfaces again, and checking and accepting, warehousing, stacking and classifying the castings. The invention has the advantages that the high manganese steel has high impact resistance and abrasion resistance; and the preparation method is simple, the production cost is low, and the market prospect is good.

Description

【Technical field】 [0001] The invention relates to manganese steel and a preparation method thereof, in particular to a high manganese steel and a preparation method thereof. 【Background technique】 [0002] Manganese steel is a high-strength manganese-resistant steel. It is mainly used in harsh working conditions such as impact, extrusion, and material wear. The damage form is mainly wear and tear, and some parts are broken and deformed. Wear is divided into three types: friction and wear in which the surfaces of metal components contact each other and move; abrasive wear in which other metal or non-metal materials hit the metal surface, and erosion wear caused by contact between flowing gas or liquid and metal. The wear resistance of wear-resistant steel depends on the material itself, while the wear-resistant steel shows different wear resistance under different working conditions. Only the material itself and the working conditions can determine its wear resistance. Cast ...

AI Technical Summary

Problems solved by technology

[0005] Due to the unsatisfactory impact resistance and wear resistance of existing high manganese steel and alloy steel, it leads to high wear and tear during use. In order to further improve the impact resistance and wear resistance of high manganese steel, new steel suitable for different industrial and mining environments is sought. In recent years, researchers from various countries have made a series of studies on the composition and ratio of alloying elements of high manganese steel.