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Medium-manganese, high-hardness and high-tenacity wear-resisting ball and preparation method thereof

A high-hardness, high-toughness technology, applied in the field of wear-resistant balls, to achieve the effect of improving yield strength, improving wear resistance and corrosion resistance, and promoting grain growth

Inactive Publication Date: 2017-06-09
WUHU BEISI SCI & TECH PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, wear-resistant balls cannot fully meet the performance requirements. How to improve the wear-resistant performance, hardness, toughness and service life of wear-resistant balls is a technical problem that those skilled in the art need to solve urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A wear-resistant ball with medium manganese, high hardness and high toughness proposed by the present invention has the following weight percentages of its components: C: 3.5%, Mn: 6.0%, S: 0.01%, P: 0.1%, Si: 4.1% , Cr: 15.83%, Mo: 0.015%, V: 0.07%, W: 0.015%, Ti: 0.04%, Bi: 0.02%, rare earth: 0.0325%, Mg: 0.0475%, and the rest are Fe and unavoidable impurities.

Embodiment 2

[0021] A kind of preparation method of wear-resistant ball with medium manganese high hardness and high toughness of the present invention, comprises the following steps:

[0022] S1. Smelting iron block, carbon powder, manganese block, sulfur powder, phosphorus powder, silicon powder, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium powder, bismuth ingot and magnesium block at a melting temperature of 1400°C , to obtain the alloy solution, and then add rare earth to carry out spheroidization treatment, wherein the temperature of spheroidization treatment is 1550°C;

[0023] S2. Carry out refining desulfurization and deoxidation to the spheroidized alloy liquid in S1, and perform detection. The alloy liquid includes the following components by weight percentage: C: 3.3%, Mn: 6.5%, S: 0.03%, P: 0.05% , Si: 3.6%, Cr: 16.83%, Mo: 0.0128%, V: 0.09%, W: 0.01%, Ti: 0.06%, Bi: 0.01%, rare earth: 0.045%, Mg: 0.04%, and the rest are Fe and unavoidable impurit...

Embodiment 3

[0026] A kind of preparation method of wear-resistant ball with medium manganese high hardness and high toughness of the present invention, comprises the following steps:

[0027] S1. Smelting iron block, carbon powder, manganese block, sulfur powder, phosphorus powder, silicon powder, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium powder, bismuth ingot and magnesium block at a melting temperature of 1420°C , to obtain the alloy solution, and then add rare earth for spheroidization treatment, wherein the temperature of spheroidization treatment is 1450 °C;

[0028] S2. Carry out refining desulfurization and deoxidation to the spheroidized alloy liquid in S1, and perform detection. The alloy liquid includes the following components by weight percentage: C: 3.7%, Mn: 5.5%, S: 0.03%, P: 0.05% , Si: 4.6%, Cr: 14.83%, Mo: 0.018%, V: 0.05%, W: 0.02%, Ti: 0.02%, Bi: 0.03%, rare earth: 0.02%, Mg: 0.055%, and the rest are Fe and unavoidable impurities;

[...

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PUM

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Abstract

The invention discloses a medium-manganese, high-hardness and high-tenacity wear-resisting ball. The medium-manganese, high-hardness and high-tenacity wear-resisting ball comprises, by weight, 3.3%-3.7% of C, 5.5%-6.5% of Mn, less than 0.04% of S, less than 0.1% of P, 3.6%-4.6% of Si, 14.83%-16.83% of Cr, 0.012%-0.018% of Mo, 0.05%-0.09% of V, 0.01%-0.02% of W, 0.02%-0.06% of Ti, 0.01%-0.03% of Bi, 0.02%-0.045% of rare earth, 0.04%-0.055% of Mg, and the balance Fe and inevitable impurities. The invention further provides a preparation method of the medium-manganese, high-hardness and high-tenacity wear-resisting ball. According to the medium-manganese wear-resisting ball prepared through the method, by reasonably selecting the components, the wear resistance and corrosion resistance of the wear-resisting ball are improved, and the service life of the wear-resisting ball is prolonged.

Description

technical field [0001] The invention relates to the field of wear-resistant balls, in particular to a wear-resistant ball with medium manganese, high hardness and high toughness and a preparation method thereof. Background technique [0002] Ball mill is one of the high-fine grinding machines widely used in industrial production. The wear-resistant ball is the grinding material medium of the ball mill equipment. The friction between the wear-resistant balls and the friction between the wear-resistant ball and the material produces grinding and peeling. It is an important basic component and is widely used in mines, cement plants and power plants. in the production process. In the prior art, wear-resistant balls cannot fully meet the performance requirements. How to improve the wear-resistant performance, hardness, toughness and service life of wear-resistant balls is a technical problem urgently needed to be solved by those skilled in the art. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/06C22C33/10C21D5/00B02C17/20
Inventor 张宏标张倍思
Owner WUHU BEISI SCI & TECH PARK
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