Wear-resistant high-manganese steel liner plate material and preparation method thereof

A high-manganese steel liner and production method technology, applied in the field of metal materials, can solve the problems of poor toughness, brittleness of medium and low alloy steel, substandard corrosion resistance, unsatisfactory wear resistance and corrosion resistance, etc., and achieve plasticity Good, excellent wear resistance, the effect of improving yield

Active Publication Date: 2014-03-26
MAANSHAN YIFENG INDAL GROUP
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Problems solved by technology

At present, in domestic practical applications, high manganese steel is still dominant. Among several mainstream materials, high manganese steel has good toughness, but its wear resistance and corrosion resistance are not ideal; high chromium cast iron has good wear resistance, but its toughness is low. Poor; the brittleness and corrosion resistance of medium and low alloy steels are not up to standard

Method used

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Embodiment Construction

[0013] A wear-resistant high-manganese steel liner material, which contains chemical element components and mass percentages: carbon 1.2-1.4, silicon 1.3-1.5, manganese 9.2-10.4, titanium 1.1-1.3, chromium 0.9-1.3, molybdenum 0.02 -0.04, aluminum 0.1-0.2, lanthanum 0.02-0.04, Nd 0.04-0.07, S≤0.04, P≤0.04, the balance is iron.

[0014] The production method of the wear-resistant high manganese steel liner material is as follows:

[0015] (1) Prepare pig iron and scrap iron as the source of iron matrix in a ratio of 1:1.5, put pig iron into the furnace for melting, perform desulfurization, deoxidation, use refining agent for one-time refining, add alloy components for alloying, and then add scrap iron to melt , adding refining agent for secondary refining, testing and adjusting the content of chemical elements to pass, casting, post-casting heat treatment, etc.;

[0016] (2) The order of batches of alloying elements put into the furnace during the alloying process is: (1) chrom...

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PUM

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Abstract

A wear-resistant high-manganese steel liner plate material comprises the following chemical elements by mass percent: 1.2 to 1.4 of carbon, 1.3 to 1.5 of silicon, 9.2 to 10.4 of manganese, 1.1 to 1.3 of titanium, 0.9 to 1.3 of chromium, 0.02 to 0.04 of molybdenum, 0.1 to 0.2 of aluminum, 0.02 to 0.04 of lanthanum, 0.04 to 0.07 of neodymium, less than or equal to 0.04 of S, less than or equal to 0.04 of P and the balance of iron. The alloy steel, prepared by adding lanthanum, neodymium, titanium and other elements into the alloy steel based on the high-carbon manganese steel, has the advantages of high hardness, excellent wear resistance, good toughness and good plasticity. The performance of the alloy steel is more superior to that of the ordinary high-manganese steel and suitable for liner plate material with large wear. The porosity of the casting pieces can be reduced by 1-2 degrees, no pores are generated on the surface of casting pieces and oxide inclusions are significantly reduced to about 2-level when the refining agent is used in casting.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a wear-resistant high manganese steel liner material and a preparation method thereof. Background technique [0002] After more than 30 years of development, the liner material has experienced the development of high manganese steel, ordinary white cast steel, nickel hard cast iron, high chromium white iron, modified high manganese steel and medium and low alloy steel with various quenching and tempering processes stage. At present, in domestic practical applications, high manganese steel is still dominant. Among several mainstream materials, high manganese steel has good toughness, but its wear resistance and corrosion resistance are not ideal; high chromium cast iron has good wear resistance, but its toughness is low. Poor; the brittleness and corrosion resistance of medium and low alloy steels are not up to standard. It is necessary to research and develop liner materials with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/38C22C33/04C21D6/00
CPCY02P10/20
Inventor 潘政桃张学伍
Owner MAANSHAN YIFENG INDAL GROUP
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