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High-hardness high-hardenability wear-resisting ball and preparing method thereof

A high-hardness, wear-resistant ball technology, applied in the field of wear-resistant balls, to achieve the effect of improving fatigue resistance, improving wear resistance and corrosion resistance, excellent hardness and hardenability

Inactive Publication Date: 2017-06-13
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 hardness and hardenability 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 high hardness and high hardenability proposed by the present invention has the following weight percentages of its components: C: 0.40%, Mn: 0.6%, S: 0.0025%, P: 0.0025%, Si: 0.65% , Cr: 3.35%, Mo: 0.75%, V: 0.055%, W: 0.9%, Ti: 0.04%, Bi: 0.02%, Ni: 3.5%, rare earth: 0.175%, Sn: 0.10%, Al: 0.05% , and the rest are Fe and unavoidable impurities.

Embodiment 2

[0021] A method for preparing a wear-resistant ball with high hardness and high hardenability 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, nickel block, tin ingot and aluminum block, The melting temperature is 1400°C to obtain alloy liquid, and then adding rare earth for 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: 0.35%, Mn: 0.8%, S: 0.001%, P: 0.004% , Si: 0.5%, Cr: 5.3%, Mo: 0.7%, V: 0.08%, W: 0.7%, Ti: 0.06%, Bi: 0.01%, Ni: 4.5%, rare earth: 0.05%, Sn: 0.15% , Al: 0.04%, the rest is Fe and unavoidable impur...

Embodiment 3

[0026] A method for preparing a wear-resistant ball with high hardness and high hardenability 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, nickel block, tin ingot and aluminum block, The melting temperature is 1420°C to obtain alloy liquid, and then adding 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: 0.45%, Mn: 0.4%, S: 0.004%, P: 0.001% , Si: 0.8%, Cr: 1.4%, Mo: 0.8%, V: 0.03%, W: 1.1%, Ti: 0.02%, Bi: 0.03%, Ni: 2.5%, rare earth: 0.3%, Sn: 0.05% , Al: 0.06%, the rest is Fe and unavoidable impuri...

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Abstract

The invention discloses a high-hardness high-hardenability wear-resisting ball. The high-hardness high-hardenability wear-resisting ball comprises, by weight percent, 0.35%-0.45% of C, 0.4%-0.8% of Mn, 0.001%-0.004% of S, 0.001%-0.004% of P, 0.5%-0.8% of Si, 1.4%-5.3% of Cr, 0.7%-0.8% of Mo, 0.03%-0.08% of V, 0.7%-1.1% of W, 0.02%-0.06% of Ti, 0.01%-0.03% of Bi, 2.5%-4.5% of Ni, 0.05%-0.3% of rare earth, 0.05%-0.15% of Sn, 0.04%-0.06% of Al and the balance Fe and inevitable impurities. The invention further provides a preparing method of the above high-hardness high-hardenability wear-resisting ball. The wear-resisting ball prepared through the preparing method is high in hardness and good in hardenability.

Description

technical field [0001] The invention relates to the field of wear-resistant balls, in particular to a wear-resistant ball with high hardness and high hardenability 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 hardness and hardenability of wear-resistant balls is a technical problem urgently needed to be solved by those skilled in the art. Contents of the invention [0003] In order to solve the technical problems exi...

Claims

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Application Information

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IPC IPC(8): C22C38/04C22C38/02C22C38/44C22C38/46C22C38/50C22C38/06C22C33/04
CPCC22C38/04C22C33/04C22C38/002C22C38/005C22C38/008C22C38/02C22C38/06C22C38/44C22C38/46C22C38/50
Inventor 张宏标张倍思
Owner WUHU BEISI SCI & TECH PARK
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