High-toughness corrosion-resistant wear-resistant ball and production process thereof

A production process and corrosion-resistant technology, used in the field of wear-resistant balls, can solve the problems of poor corrosion resistance and toughness, and achieve the effects of good corrosion resistance, grain refinement, and copper brittleness reduction.

Inactive Publication Date: 2018-02-27
NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing wear-resistant balls are not good in corrosion resistance and toughness, and cannot meet the requirements of modern society for wear-resistant balls. Therefore, higher requirements are put forward for the composition and production process of steel balls.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-toughness, corrosion-resistant and wear-resistant ball, the mass percentage of each element composition is: C: 2.5%, Si: 1.2%, Mn: 1.7%, Ni: 3.1%, Cr: 6.5%, Mo: 0.5%, V : 0.5%, Cu: 0.25%, Y: 0.1%, P: 0.03%, S: 0.01%, and the balance is Fe and unavoidable impurities.

[0023] The production process of the above-mentioned high-toughness, corrosion-resistant and wear-resistant balls includes the following steps:

[0024] (1) Raw material smelting: Put all the raw materials into an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of molten steel is kept at 1600°C to obtain molten steel with qualified chemical composition, and then carry out static slag removal treatment;

[0025] (2) Spheroidization treatment and inoculation treatment: the rare earth magnesium alloy spheroidizing agent with 1.5% of the total weight of molten steel is added in the spheroidizing bag, and the molten steel is spheroidized using the cover...

Embodiment 2

[0029] A high-toughness, corrosion-resistant and wear-resistant ball, the mass percentage of each element composition is: C: 2.9%, Si: 1.1%, Mn: 1.9%, Ni: 3%, Cr: 6%, Mo: 1.1%, V : 0.7%, Cu: 0.1%, Y: 0.2%, P: 0.04%, S: 0.02%, and the balance is Fe and unavoidable impurities.

[0030] The production process of the above-mentioned high-toughness, corrosion-resistant and wear-resistant balls includes the following steps:

[0031] (1) Raw material smelting: Put each raw material into an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of molten steel is kept at 1580-1620°C to obtain molten steel with qualified chemical composition, and then carry out static slag removal treatment;

[0032] (2) Spheroidization treatment and inoculation treatment: the rare earth magnesium alloy spheroidizing agent with 1.5% of the total weight of molten steel is added in the spheroidizing bag, and the molten steel is spheroidized using the cover bag...

Embodiment 3

[0036] A high-toughness, corrosion-resistant and wear-resistant ball, the mass percentage of each element composition is: C: 2.3%, Si: 1.7%, Mn: 1.5%, Ni: 3.8%, Cr: 4.5%, Mo: 0.8%, V : 0.2%, Cu: 0.3%, Y: 0.05%, P: 0.02%, S: 0.02%, and the balance is Fe and unavoidable impurities.

[0037] The production process of the above-mentioned high-toughness, corrosion-resistant and wear-resistant balls includes the following steps:

[0038] (1) Raw material smelting: Put each raw material into an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of molten steel is kept at 1580-1620°C to obtain molten steel with qualified chemical composition, and then carry out static slag removal treatment;

[0039] (2) Spheroidization treatment and inoculation treatment: a rare earth magnesium alloy nodulizer with a total weight of 1.45% of the molten steel is added into the nodularization bag, and the molten steel is spheroidized by using the cover b...

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Abstract

The invention provides a high-toughness corrosion-resistant wear-resistant ball and a production process thereof. The high-toughness corrosion-resistant wear-resistant ball comprises the following components of, by weight, .3-2.9% of C, 1.1-1.7% of Si, 1.2-1.9% of Mn, 2.5-3.8% of Ni, 4.5-8% of Cr, 0.4-1.1% of Mo, 0.2-0.7% of V, 0.1-0.3% of Cu, 0.05-0.2% of Y, 0.02-0.04% of P, 0.01-0.02% of S and the baclance Fe and inevitable impurities. The production process thereof mainly comprises the three following steps of smelting raw materials, spheroidizing and inoculation treatment and heat treatment. According to the high-toughness corrosion-resistant wear-resistant ball and the production process thereof, the components of the elements are reasonably configured, the optimized production process is coordinated, so that the prepared wear-resistant ball is high in strength, high in hardness, excellent in toughness and good in corrosion resistance.

Description

technical field [0001] The invention relates to the field of wear-resistant balls, in particular to a high-toughness, corrosion-resistant and wear-resistant ball and a production process thereof. Background technique [0002] Ball mill is one of the high-fine grinding machines widely used in industrial production. The steel ball of the ball mill is the grinding material medium of the ball mill equipment. The grinding effect is generated by the collision and friction between the steel balls of the ball mill and between the steel ball and the material, thereby further reducing the particle size of the material. [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 resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/08C21D5/00C21D9/36C21D1/18B22D1/00
CPCC22C37/10B22D1/00C21D1/18C21D5/00C21D9/36C22C33/08C22C37/08
Inventor 李根有李骏
Owner NINGGUO ZHENGXING WEAR RESISTANT MATERIALS
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