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Anti-corrosion and low-abrasion wear-resistant ball and preparation method thereof

A low-wear, wear-resistant ball technology, used in manufacturing tools, heat treatment equipment, furnace types, etc., can solve the problems of poor wear-resistant ball hardness and wear resistance, and achieve strong comprehensive mechanical properties, excellent corrosion resistance and resistance. Abrasive, balanced effect

Inactive Publication Date: 2018-03-02
NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The hardness and anti-wear performance of existing wear-resistant balls are not good enough to meet the requirements of modern society for wear-resistant balls. Therefore, the wear-resistant balls with high hardness, anti-friction and strong comprehensive performance can be obtained by selecting appropriate ingredients and controlling the manufacturing process. is a hot topic of current research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A corrosion-resistant and low-wear wear-resistant ball is characterized in that it includes the following percentage content of alloy elements: 2.6% carbon, 0.5% silicon, 2% manganese, 16.5% chromium, 2% nickel, 1.5% molybdenum, and 0.2% vanadium , tantalum 2%, the balance is iron and unavoidable impurities.

[0026] It also includes 0.45% of copper powder, 0.15% of niobium oxide powder and 0.12% of zirconia powder.

[0027] The corrosion-resistant and low-wear wear-resistant ball is prepared as follows:

[0028] 1) Add pig iron, scrap steel, ferromolybdenum, ferronickel, and ferromanganese into the intermediate frequency electric furnace, first preheat the raw materials in the furnace to 920°C for 1 hour, then heat up to 1520°C, and then melt the ferrochrome and ferrosilicon , tantalum oxide is added to it, continue to heat up to melt, and then adjust the temperature to 1450 ° C, add ferrovanadium and copper powder, refine for 40 minutes, then add deoxidizer and slag ...

Embodiment 2

[0032] A corrosion-resistant and low-wear wear-resistant ball, characterized in that it includes the following alloy elements: 2.1% carbon, 0.65% silicon, 2.1% manganese, 16% chromium, 1.8% nickel, 0.5% molybdenum, and 0.22% vanadium , Tantalum 1.3%, the balance is iron and unavoidable impurities.

[0033] It also includes 0.3% of copper powder, 0.2% of niobium oxide powder and 0.1% of zirconia powder.

[0034] The corrosion-resistant and low-wear wear-resistant ball is prepared as follows:

[0035] 1) Add pig iron, scrap steel, ferromolybdenum, ferronickel, and ferromanganese into the intermediate frequency electric furnace, preheat the raw materials in the furnace to 900°C for 2 hours, then heat up to 1500°C, and then melt the ferrochrome and ferrosilicon , Add tantalum oxide, continue to heat up to melt, then adjust the temperature to 1480°C, add ferrovanadium and copper powder, refine for 30 minutes, then add deoxidizer and slag remover in turn, stand for 3-5 minutes and ...

Embodiment 3

[0039] A corrosion-resistant and low-wear wear-resistant ball, characterized in that it includes the following percentage content of alloy elements: 2.5% carbon, 0.6% silicon, 2.2% manganese, 17.5% chromium, 2.1% nickel, 1.3% molybdenum, and 0.15% vanadium , tantalum 2.1%, and the balance is iron and unavoidable impurities.

[0040] It also includes 0.2% copper powder, 0.1% niobium oxide powder and 0.25% zirconium oxide powder.

[0041] The corrosion-resistant and low-wear wear-resistant ball is prepared as follows:

[0042] 1) Add pig iron, scrap steel, ferromolybdenum, ferronickel, and ferromanganese into the intermediate frequency electric furnace, first preheat the raw materials in the furnace to 910°C for 2 hours, then heat up to 1530°C, and then melt the ferrochrome and ferrosilicon , tantalum oxide is added to it, continue to heat up to melt, and then adjust the temperature to 1460 ° C, add ferrovanadium and copper powder, refine for 20 minutes, then add deoxidizer and s...

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Abstract

The invention provides an anti-corrosion and low-abrasion wear-resistant ball and a preparation method thereof. The anti-corrosion and low-abrasion wear-resistant ball comprises the following alloyingelements of 2.1-2.8% of carbon, 0.5-0.8% of silicon, 1.8-2.2% of manganese, 16-22% of chromium, 1.8-2.1% of nickel, 0.5-2% of molybdenum, 0.1-0.35% of vanadium, 1.3-2.6% of tantalum and the balance iron and unavoidable impurities. According to the anti-corrosion and low-abrasion wear-resistant ball and the preparation method thereof, through reasonable element matching and process optimization, the comprehensive mechanical properties of the prepared wear-resistant ball are high, excellent corrosion resistance and abrasion assistance are achieved, and the service life is prolonged by more than6 times compared with a traditional high-chromium wear-resistant ball.

Description

technical field [0001] The invention relates to the technical field of wear-resistant balls and their preparation, in particular to a corrosion-resistant and low-wear wear-resistant ball and a preparation method thereof. Background technique [0002] Wear-resistant ball is a kind of crushing medium used in ball mills, used to crush the materials in the mill, and has been widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemical industry, coal water slurry , pellets, slag, ultrafine powder, fly ash, calcium carbonate, quartz sand and other industries ball mill. [0003] As a wear material, the wear-resistant ball should have the following properties: (1) High hardness, the high-hardness matrix can resist the microscopic cutting effect of abrasive particles on the matrix, which reflects the wear resistance of the material to a certain extent; (2) High plasticity and toughness, strain fatigue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/08C22C33/08C21D9/36B02C17/20
CPCC22C37/10B02C17/20C21D9/36C22C33/08C22C37/08
Inventor 李根有李骏
Owner NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
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