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Medium chrome multi-component alloy wear-resistant ball

A multi-element alloy, wear-resistant ball technology, applied in the field of wear-resistant materials, can solve the problems of poor wear resistance, heat resistance, corrosion resistance and other properties of wear-resistant balls, and achieve improved flatness and wear resistance. High, the effect of suppressing the occurrence of cracks

Active Publication Date: 2014-10-22
宁国市宁武新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The wear resistance, heat resistance, corrosion resistance and other properties of the existing wear-resistant balls are not good enough to meet the requirements of modern society for wear-resistant balls. Therefore, the selection of suitable ingredients and the control of the preparation process can obtain comprehensive performance of wear-resistant balls. Grinding ball is a hot topic in current research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]The medium-chromium multi-element alloy wear-resistant ball of the present invention, its raw material comprises by weight parts: 100 parts of scrap steel, 5 parts of ferrochromium, 1.35 parts of ferromolybdenum, 1.3 parts of ferrovanadium, 0.1 part of ferromanganese, 0.35 parts of ferrosilicon, metal Zinc 2 parts;

[0029] According to the above raw material ratio, the medium chromium multi-element alloy wear-resistant ball is prepared according to the following process:

[0030] S1. Put the steel scrap into the medium frequency induction melting furnace and heat it to 1498°C. After holding the heat for 30 minutes, add ferrochromium, ferromolybdenum, and ferrovanadium. After it is completely melted, add ferrosilicon, ferromanganese and metal zinc, and heat up to 1583°C. After the molten steel is completely melted, the molten steel is poured, and the mold is opened after the molten steel is completely solidified, and the furnace is cooled to room temperature to obtain a ...

Embodiment 2

[0039] The medium-chromium multi-element alloy wear-resistant ball of the present invention, its raw material comprises by weight parts: 100 parts of scrap steel, 7.6 parts of ferrochromium, 1 part of ferromolybdenum, 1.25 parts of ferrovanadium, 0.3 part of ferromanganese, 0.2 part of ferrosilicon, metal 3 parts of zinc;

[0040] According to the above raw material ratio, the medium chromium multi-element alloy wear-resistant ball is prepared according to the following process:

[0041] S1. Add steel scrap to the medium frequency induction melting furnace and heat to 1490°C. After holding for 50 minutes, add ferrochromium, ferromolybdenum, and ferrovanadium. After complete melting, add ferrosilicon, ferromanganese and metal zinc, and heat up to 1550°C. After the molten steel is completely melted, the molten steel is poured, and the mold is opened after the molten steel is completely solidified, and the furnace is cooled to room temperature to obtain a wear-resistant ball gree...

Embodiment 3

[0050] The wear-resistant ball of medium chromium multi-element alloy of the present invention, its raw material comprises by weight parts: 100 parts of scrap steel, 6.5 parts of ferrochromium, 1.5 parts of ferromolybdenum, 1 part of ferrovanadium, 0.22 part of ferromanganese, 0.6 part of ferrosilicon, metal 5 parts of zinc;

[0051] According to the above raw material ratio, the medium chromium multi-element alloy wear-resistant ball is prepared according to the following process:

[0052] S1. Put the steel scrap into the medium frequency induction melting furnace and heat it to 1510°C. After holding the heat for 25 minutes, add ferrochromium, ferromolybdenum, and ferrovanadium. After it is completely melted, add ferrosilicon, ferromanganese and metal zinc, and heat up to 1600°C. After the molten steel is completely melted, the molten steel is poured, and the mold is opened after the molten steel is completely solidified, and the furnace is cooled to room temperature to obtai...

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Abstract

The invention discloses a medium chrome multi-component alloy wear-resistant ball. The medium chrome multi-component alloy wear-resistant ball comprises the following components of steel scrap, ferrochrome, ferromolybdenum, ferrovanadium, ferromanganese, ferrosilicon and metallic zinc. In the preparation process, the vacuum cladding process parameters are as follows: the temperature is 1050-1250 DEG C, the time is 3-5 hours, the vacuum degree is 5-6*10<-4>Pa, inflow water pressure of cooling water is 0.45-0.55MPa during warming, inflow water pressure 1 minute before temperature reduction is 2.2-2.5MPa and air-cooling is performed at 120-145 DEG C and discharge out of a furnace is performed; the primary laser cladding process parameters are as follows: the laser power is 1800-2300W, the defocusing amount is plus (20-45), the scanning speed is 250-290mm / min, the powder feeding voltage is 5-10V, the powder feeding speed is 5-9.5g / min and the argon flow is 200-280L / h; the secondary laser cladding process parameters are as follows: the output power is 1600-2500W, the scanning speed is 20-50mm / s, the spot diameter is 5-10mm and the thickness of a cladding layer is 2-3mm. The wear-resistant ball is high in hardness, impact toughness, corrosion resistance, heat resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a wear-resistant ball of a medium-chromium multi-element alloy. 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 resistance, brittle fracture resistance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06C21D9/36C23C24/10C22C19/07
Inventor 丁仕武丁幸徐帮明
Owner 宁国市宁武新材料科技有限公司
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