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Wearable steel ball with high failure resistance and long fatigue life and preparation method thereof

A technology of fatigue life and wear-resistant steel, which is applied in the field of wear-resistant steel balls, can solve the problems of wear-resistant steel balls' aging resistance and service life, and achieve the goals of reducing adverse effects, excellent strength, and improving wear resistance and hardness Effect

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

AI Technical Summary

Problems solved by technology

[0003] The aging resistance and service life of wear-resistant steel balls in the prior art cannot meet the needs of actual use, so it is urgent to design a wear-resistant steel ball with strong failure resistance and high fatigue life to meet the needs of actual use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The present invention proposes a wear-resistant steel ball with strong failure resistance and high fatigue life. The weight percentages of its components are as follows: C: 0.80%, Si: 0.27%, Mn: 1.00%, Cr: 0.95%, Mo: 0.09%, Ni: 0.07%, Al: 0.035%, Mg: 0.04%, Ce: 0.02%, Ca: 0.035%, Re: 0.035%, P: 0.015%, S: 0.015%, the balance is Fe and unavoidable of impurities.

Embodiment 2

[0028] A method for preparing a wear-resistant steel ball with strong failure resistance and high fatigue life of the present invention comprises the following steps:

[0029] S1. Smelt iron ingots, carbon powder, silicon powder, manganese ingots, chromium ingots, molybdenum ingots, nickel ingots, aluminum ingots, phosphorus powder and sulfur powder, and take out the furnace to obtain alloy liquid. Nodulizer and inoculant, stir evenly, and then stand still for 120s to obtain the processed alloy liquid;

[0030] S2, carry out refining desulfurization and deoxidation to the treated alloy liquid obtained in S1, and perform detection. The alloy liquid includes the following components by weight percentage: C: 0.75%, Si: 0.37%, Mn: 0.95%, Cr: 1.00%, Mo: 0.06%, Ni: 0.10%, Al: 0.02%, Mg: 0.06%, Ce: 0.01%, Ca: 0.05%, Re: 0.02%, P: 0.02%, S: 0.01%, the balance is Fe and unavoidable impurities;

[0031] S3. The alloy liquid obtained in S2 is poured, cast and shaped, cleaned to obtain ...

Embodiment 3

[0033] A method for preparing a wear-resistant steel ball with strong failure resistance and high fatigue life of the present invention comprises the following steps:

[0034] S1. Smelt iron ingots, carbon powder, silicon powder, manganese ingots, chromium ingots, molybdenum ingots, nickel ingots, aluminum ingots, phosphorus powders and sulfur powders, and get out of the furnace to obtain alloy liquid. Nodulizer and inoculant, stirred evenly, and then left to stand for 60s to obtain the treated alloy liquid;

[0035] S2. Carry out refining desulfurization and deoxidation to the treated alloy liquid obtained in S1, and perform detection. The alloy liquid includes the following components by weight percentage: C: 0.85%, Si: 0.17%, Mn: 1.05%, Cr: 0.90%, Mo: 0.12%, Ni: 0.04%, Al: 0.05%, Mg: 0.02%, Ce: 0.03%, Ca: 0.02%, Re: 0.05%, P: 0.01%, S: 0.02%, the balance is Fe and unavoidable impurities;

[0036]S3. The alloy liquid obtained in S2 is poured, cast and shaped, cleaned to ob...

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PUM

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Abstract

The invention discloses a wearable steel ball with high failure resistance and long fatigue life. The wearable steel ball comprises, by weight, 0.75-0.85% of C, 0.17-0.37% of Si, 0.95-1.05% of Mn, 0.9.-1.00% of Cr, 0.06-0.12% of Mo, 0.04-0.10% of Ni, 0.02-0.05% of Al, 0.02-0.06% of Mg, 0.01-0.03% of Ce, 0.02-0.05% of Ca, 0.02-0.05% of Re, 0.01-0.02% of P, 0.01-0.02% of S, and the balance Fe and inevitable impurities. The invention further provides a preparation method of the wearable steel ball with the high failure resistance and the long fatigue life. The wearable steel ball prepared through the method is high in ageing resistance and long in fatigue life.

Description

technical field [0001] The invention relates to the technical field of wear-resistant steel balls, in particular to a wear-resistant steel ball with strong failure resistance and long fatigue life and a preparation method thereof. Background technique [0002] Wear-resistant steel balls, also known as wear-resistant media for grinding machines, are widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals, coal water slurry, pellets, slag, ultrafine powder, powder Coal ash, calcium carbonate, quartz sand and other industries ball mill. It is a consumable product whose main purpose is to grind materials to make them finer to meet the use standard. [0003] The anti-aging ability and service life of the wear-resistant steel balls in the prior art cannot meet the needs of actual use, so it is urgent to design a wear-resistant steel ball with strong failure resistance and high fatigue life to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/44C22C33/04C21D1/18C21D9/36
CPCC22C38/02C21D1/18C21D9/36C22C33/04C22C38/002C22C38/005C22C38/04C22C38/06C22C38/44
Inventor 张宏标张倍思
Owner WUHU BEISI SCI & TECH PARK