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Method for preparing high-hardness and high-toughness abrasion resistant balls through laser cladding

A technology of laser cladding and wear-resistant balls, which is applied in the field of wear-resistant balls, can solve the problems that hardness and toughness are difficult to achieve a balance and limit the application range, and achieve the effects of controlling carbide content, good bonding, and adjusting hardness

Inactive Publication Date: 2016-02-03
NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the rapid development of my country's industry, higher requirements have been put forward for the quality and quantity of wear-resistant balls. However, it is often difficult to achieve a balance between the hardness and toughness of steel balls used in the prior art, thus limiting Its scope of application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing high-hardness and high-toughness wear-resistant balls by laser cladding proposed by the present invention comprises the following steps:

[0022] S1, 150 parts of scrap steel, 50 parts of chromium steel, 15 parts of rare earth alloy, 15 parts of manganese steel, 5 parts of molybdenum steel, 15 parts of vanadium steel, 10 parts of tungsten slag and 2 parts of ferrosilicon are put into the smelting furnace by weight, Raise the temperature to 1650°C, keep warm for 0.5h, add 15 parts of titanium ingots and 15 parts of zirconium ingots, keep warm at 1500°C for 10 minutes, then add 5 parts of aluminum ingots and 20 parts of magnesium ingots at 1600°C and keep warm for 10 minutes, remove and float in the liquid The alloy liquid is obtained after removing the slag on the surface;

[0023] S2. Pouring: Pouring the alloy liquid, cooling to room temperature after the alloy liquid is solidified to obtain a billet, wherein the pouring temperature is 1450°C;

...

Embodiment 2

[0027] A method for preparing high-hardness and high-toughness wear-resistant balls by laser cladding proposed by the present invention comprises the following steps:

[0028] S1, put 100 parts of scrap steel, 80 parts of chromium steel, 10 parts of rare earth alloy, 5 parts of manganese steel, 15 parts of molybdenum steel, 5 parts of vanadium steel, 35 parts of tungsten slag and 10 parts of ferrosilicon into the smelting furnace by weight, Raise the temperature to 1500°C, add 10 parts of titanium ingots and 30 parts of zirconium ingots after holding for 1 hour, keep warm at 1450°C for 25 minutes, then add 12 parts of aluminum ingots and 5 parts of magnesium ingots at 1550°C and keep warm for 25 minutes, remove and float on the surface of the liquid The alloy liquid is obtained after the slag;

[0029] S2. Pouring: Pouring the alloy liquid, cooling to room temperature after the alloy liquid is solidified to obtain a billet, wherein the pouring temperature is 1550°C;

[0030] ...

Embodiment 3

[0033] A method for preparing high-hardness and high-toughness wear-resistant balls by laser cladding proposed by the present invention comprises the following steps:

[0034] S1, 135 parts of scrap steel, 70 parts of chromium steel, 12 parts of rare earth alloy, 13.5 parts of manganese steel, 10 parts of molybdenum steel, 12 parts of vanadium steel, 30 parts of tungsten slag and 8 parts of ferrosilicon are put into the smelting furnace by weight, Raise the temperature to 1600°C, keep warm for 0.8h, add 12 parts of titanium ingots and 20 parts of zirconium ingots, keep warm at 1480°C for 20 minutes, then add 10 parts of aluminum ingots and 15 parts of magnesium ingots at 1580°C and keep warm for 20 minutes, remove and float in the liquid The alloy liquid is obtained after removing the slag on the surface;

[0035] S2. Pouring: Pouring the alloy liquid, cooling to room temperature after the alloy liquid is solidified to obtain a billet, wherein the pouring temperature is 1500°C...

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Abstract

The invention discloses a method for preparing high-hardness and high-toughness abrasion resistant balls through laser cladding. The method comprises the following steps that scrap steel, chrome steel, rare earth alloy, manganese steel, molybdenum steel, vanadium steel, tungsten residues, silicon iron, titanium ingots, zirconium ingots, aluminum ingots and magnesium ingots are smelted, so that liquid alloy is obtained; ball billets are obtained by pouring the liquid alloy; tempered balls are obtained by conducting heat treatment on the ball billets; and laser cladding is conducted with Fe-based alloy and wolfram carbide (WC) powder serving as cladding powder after the tempered balls are cleaned, and the high-hardness and high-toughness abrasion resistant balls are obtained. The Fe-based alloy comprises C, Cr, Co, Ni, Mo, Ti, V and B. The power of laser cladding is 2500-3000W. The diameter of a light spot is 3-5 mm. The movement speed of the light spot is 10-15 mm / s. The thickness of a cladding layer is 5-10 [mu]m. According to the method for preparing the high-hardness and high-toughness abrasion resistant balls through laser cladding, the process is simple, conditions are easy to control, and an obtained finished product is high in hardness, good in toughness and long in service life.

Description

technical field [0001] The invention relates to the technical field of wear-resistant balls, in particular to a method for preparing high-hardness and high-toughness wear-resistant balls by laser cladding. Background technique [0002] Ball mill is one of the high-fine grinding machines widely used in cement, electric power, mineral processing, building materials and other industries. 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. In the prior art, the grinding medium steel balls of the ball mill are mainly chromium-based alloys, manganese-based alloys and other ball-milled steel castings or ball-milled iron castings, such as high-chromium steel balls, low-chromium steel balls, multi-element alloy steel balls, and vanadium-ti...

Claims

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Application Information

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IPC IPC(8): C23C24/10B22C9/22C21D9/36
CPCB22C9/22C21D9/36C23C24/103Y02P10/20
Inventor 熊夏鸣
Owner NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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