Super manganese steel bowl mill liner plate and processing technology thereof

A ball mill liner and processing technology, which is applied to metal processing equipment, manufacturing tools, casting molding equipment, etc., can solve the problems of inability to achieve uniform dispersion, achieve the effect of improving hardness and impact toughness, and increasing service life

Inactive Publication Date: 2015-05-27
铜陵市大明玛钢有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, adding nanomaterials to the metal melt of the ball mill liner can greatly increase the number of crystal nuclei in the melt, and part of them become nuclei, making the structure dense and the grains fine; at the same time, part of the nanoparticles in the metal melt However, due to the fine grains of nanomaterials, some of them will float on the surface of the metal melt when directly added, and the effect of uniform dispersion cannot be achieved.

Method used

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Embodiment Construction

[0012] The invention will be further described below.

[0013] An ultra-manganese steel ball mill liner, the chemical composition of which is as follows in weight percent: C 1.8-2.0, Si 0.8-1.1, Mn 16.00-18.00, P ≤ 0.10, Cu ≤ 0.5, S ≤ 0.06, Cr 1.00-3.00, Re 0.06 ~ 0.10, Mo ≤ 0.8, R < 0.08, the balance is Fe.

[0014] The present invention also provides the processing technology of the ultra-manganese steel ball mill liner:

[0015] (1) Weigh C, Si, Mn, S, P, Cr, Cu, Mo, and Fe according to the weight percentage of the raw materials, and then add them to an intermediate frequency induction furnace for smelting until they are released at 1500°C -1550°C;

[0016] (2) Deoxidation treatment: adding aluminum with a weight of 0.15% of the weight of molten steel to molten steel for deoxidation treatment to obtain molten steel after deoxidation;

[0017] (3) Weigh B4C and Re according to the weight percentage of the constituent raw materials, add them to molten steel, heat to fully m...

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Abstract

The invention discloses a super manganese steel bowl mill liner plate. The super manganese steel bowl mill liner plate comprises, by weight, 1.8-2.0% of C, 0.8-1.1% of Si, 16.00-18.00% of Mn, less than or equal to 0.10% of P, less than or equal to 0.5% of u, less than or equal to 0.06% of S, 1.00-3.00% of Cr, 0.06-0.10% of Re, less than or equal to 0.8% of Mo, less than 0.08% of R and the balance Fe. The processing technology changes the original liner plate material, utilizes nano-material B4C and Re in a steel material, improves manganese content to 16-18%, improves bowl mill liner plate hardness and impact toughness, improves wear resistance by more than 25% than that of common high manganese steel and improves a service life by 1.5 times.

Description

technical field [0001] The invention relates to a liner, in particular to an ultra-manganese steel ball mill liner. Background technique [0002] The liner is one of the tools commonly used in the metal processing industry, which can lift the grinding media of the grinding body and play a grinding role. At present, adding nanomaterials to the metal melt of the ball mill liner can greatly increase the number of crystal nuclei in the melt, and part of them become nuclei, making the structure dense and the grains fine; at the same time, part of the nanoparticles in the metal melt However, due to the small grain size of the nanomaterials, some of them will float on the surface of the metal melt when added directly, and the effect of uniform dispersion cannot be achieved. Contents of the invention [0003] The purpose of the present invention is to improve the hardness and impact toughness of the ball mill liner, thereby prolonging the service life of the grinding balls, and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/60C22C38/38C22C33/04B22C9/06C21D8/02
Inventor 张国庆章成希
Owner 铜陵市大明玛钢有限责任公司
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