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Rare earth boron micro-alloyed high manganese steel

A technology of boron microalloying and rare earth ferrosilicon alloy, which is applied in the field of rare earth boron microalloying high manganese steel, can solve the problem of low wear resistance and achieve the effect of high manganese content

Inactive Publication Date: 2005-07-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing high-manganese steel cannot be fully work-hardened under small impact and low stress conditions, and has low wear resistance under high impact conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Example 1: High manganese steel used for the jaw plate of jaw crusher

[0029] Its composition by mass percentage is: C 1.01, Si 0.69, Mn 13.13, P 0.034, S 0.02, Cr 1.07, B 0.0008, Re 0.02, and the balance is Fe.

[0030] Its preparation method is operated according to the aforementioned method, and the mechanical properties of the prepared high manganese steel after water toughening treatment: HB=205, a K =141J / cm 2 .

example 2

[0031] Example 2: High manganese steel for ball mill liner

[0032] Its composition by weight percentage is: C 1.58, Si 0.77, Mn 18.57, P 0.04, S 0.03, Cr 2.57, B 0.005, Re 0.015, trace elements include Nb, Al, Ca, and the balance is Fe.

[0033] The technical process is operated according to the aforementioned method, and the mechanical properties of the prepared high manganese steel after water toughening treatment: HB=230, a K =150J / cm 2 .

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PUM

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Abstract

One kind of rare earth boraxium alloying high manganese steel that has the mass ratio of ingredient: C 0.9-1.6, Mn 13-30, B 0.0005-0.02, Re 0.01-0.05, Si 0.3-1.0, Cr<3, Mo<2, Ni<1, Cu<1, V+Ti+Nb+Zr+N+Al+Ca<2 S<0.04, P<0.07, the residue is Fe. Its process includes blending, melting, tapping of molten steel, adding alterant, packing. Its advantages include a good abradability of more than two fold than formal high manganese steel.

Description

technical field [0001] The invention belongs to the technical field of metal materials, in particular to a rare earth boron microalloyed high manganese steel. Background technique [0002] At present, my country consumes more than 3 million tons of metal wear-resistant materials every year, of which high manganese steel accounts for a large proportion. High manganese steel is still widely used in metallurgical mines, building materials, construction machinery, railway transportation and other industrial sectors. However, the existing high-manganese steel cannot be fully work-hardened under the condition of small impact and low stress, and has low wear resistance under the condition of high impact. Contents of the invention [0003] Aiming at the problems existing in the existing high manganese steel, the invention provides a rare earth boron microalloyed high manganese steel. [0004] The high manganese steel of the present invention is a multi-component alloy steel cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C38/04
Inventor 何奖爱辛启斌刘素兰薛向欣汪云泽
Owner NORTHEASTERN UNIV
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