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Anti-corrosion high-hardness abrasion-resistant alloy cast ball

A wear-resistant alloy and high-hardness technology, which is applied in the field of anti-corrosion and high-hardness wear-resistant alloy casting balls, can solve the problems of poor wear resistance, hardness, toughness and anti-corrosion performance, and achieve good wear resistance and improved strength. , The effect of improving grinding efficiency

Inactive Publication Date: 2016-01-20
NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the defects of existing alloy casting balls, the existing alloy casting balls have poor performance in terms of wear resistance, hardness, toughness and corrosion resistance, and cannot meet the requirements of the current society

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The anti-corrosion high-hardness wear-resistant alloy cast ball of the present invention is prepared according to the following process:

[0024]S1. Melting: Add high-carbon ferrochrome, low-carbon ferrochrome, steel scrap, ferromolybdenum, ferro-vanadium, ferro-tungsten, ferro-niobium, and ferro-titanium into the high-frequency induction melting furnace, and introduce argon gas into the induction furnace to induce The oxygen content in the furnace is less than 3%, and the argon gas flow rate is 25L / min. After closing the furnace door, the temperature of the induction furnace is raised to 2500°C. Silicon-calcium alloy, zirconium iron, metal zinc, metal copper, metal rhenium, carbon powder with a particle size of 55-60 μm and silicon powder with a particle size of 30-50 μm, close the furnace door again and raise the temperature of the induction furnace to 2500 ° C for 4 hours. During the heat preservation process, vacuumize to maintain a negative pressure of 0.1kPa. Afte...

Embodiment 2

[0032] The anti-corrosion high-hardness wear-resistant alloy cast ball of the present invention is prepared according to the following process:

[0033] S1. Melting: Add high-carbon ferrochrome, low-carbon ferrochrome, steel scrap, ferromolybdenum, ferro-vanadium, ferro-tungsten, ferro-niobium, and ferro-titanium into the high-frequency induction melting furnace, and introduce argon gas into the induction furnace to induce The oxygen content in the furnace is less than 3%, and the argon gas flow rate is 35L / min. After closing the furnace door, the temperature of the induction furnace is raised to 2000°C. Silicon-calcium alloy, zirconium iron, metal zinc, metal copper, metal rhenium, carbon powder with a particle size of 55-60 μm and silicon powder with a particle size of 30-50 μm, close the furnace door again and raise the temperature of the induction furnace to 2700 ° C for 3 hours. During the heat preservation process, vacuumize to maintain a negative pressure of 0.3kPa. Aft...

Embodiment 3

[0041] The anti-corrosion high-hardness wear-resistant alloy cast ball of the present invention is prepared according to the following process:

[0042] S1. Melting: Add high-carbon ferrochrome, low-carbon ferrochrome, steel scrap, ferromolybdenum, ferro-vanadium, ferro-tungsten, ferro-niobium, and ferro-titanium into the high-frequency induction melting furnace, and introduce argon gas into the induction furnace to induce The oxygen content in the furnace is less than 3%, and the argon flow rate is 30L / min. After closing the furnace door, the temperature of the induction furnace is raised to 2250°C. Silicon-calcium alloy, zirconium iron, metal zinc, metal copper, metal rhenium, carbon powder with a particle size of 55-60 μm and silicon powder with a particle size of 30-50 μm, close the furnace door again and raise the temperature of the induction furnace to 2600 ° C for 3.5 hours , during the heat preservation process, the vacuum is maintained to maintain a negative pressure ...

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Abstract

The invention discloses an anti-corrosion high-hardness abrasion-resistant alloy cast ball. The preparation process of the anti-corrosion high-hardness abrasion-resistant alloy cast ball comprises the steps of smelting, detection, casting, thermal treatment and coating spraying. The cast ball comprises alloy elements including C, Mn, Si, Ni, Cr, Mo, V, Re, Ti, B, Nb, Ca, Zr, Mg, Zn, Cu, W, S, P and the balance Fe and inevitable impurities. The alloy cast ball obtained through the preparation process can be used in various environments, good corrosion resistance and abrasion resistance are achieved, the hardness can reach over 70 HRC, the impact toughness can reach 7 J / cm<2>, and the requirements for the alloy cast ball in the practical using process are met.

Description

technical field [0001] The invention relates to the technical field of abrasive materials, in particular to an anti-corrosion high-hardness and wear-resistant alloy casting ball. Background technique [0002] With the development of industry, the application of mills tends to be more extensive. Alloy casting balls are the medium for mill equipment to grind materials. Grinding occurs through the collision and friction between the mill and the alloy casting balls, and between the alloy casting balls and the material. function, thereby further reducing the particle size of the material. Common cast alloy balls in the prior art are widely used in mining, building materials, electric power and other industries because of their higher wear resistance than forged alloy balls. In the mills in the mineral processing industry, the alloy casting balls used are mainly ball milling steel castings or ball milling iron castings such as chromium alloys and manganese alloys, such as high ch...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C33/08C21D5/00C09D163/00C09D5/08C09D7/12
CPCY02P10/20
Inventor 熊夏鸣
Owner NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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