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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

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

[0022] S1, put 150 parts of scrap steel, 50 parts of chromium steel, 15 parts of rare earth alloys, 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 into the melting furnace by weight, The temperature was raised to 1650°C, 15 parts of titanium ingots and 15 parts of zirconium ingots were added after holding for 0.5 hours, and the temperature was kept at 1500°C for 10 minutes, and then 5 parts of aluminum ingots and 20 parts of magnesium ingots were added at 1600°C for 10 minutes, and the floating liquid was taken out. The alloy liquid is obtained after the slag on the surface;

[0023] S2, pouring: pour the alloy liquid, and after the alloy liquid solidifies, cool it to room temperature to obtain a ball...

Example Embodiment

[0026] Example 2

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

[0028] S1, put 100 parts of scrap steel, 80 parts of chromium steel, 10 parts of rare earth alloys, 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 melting furnace by weight, The temperature was raised to 1500°C, 10 parts of titanium ingots and 30 parts of zirconium ingots were added after holding for 1 hour, and the temperature was kept at 1450°C for 25 minutes, and then 12 parts of aluminum ingots and 5 parts of magnesium ingots were added at 1550°C for 25 minutes, and then they were taken out and floated on the surface of the liquid. After the slag is obtained, alloy liquid is obtained;

[0029] S2, pouring: pour the alloy liquid, and after the alloy liquid is solidified, cool to room tempe...

Example Embodiment

[0032] Example 3

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

[0034] S1, put 135 parts of scrap steel, 70 parts of chromium steel, 12 parts of rare earth alloys, 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 into the melting furnace by weight, The temperature was raised to 1600°C, 12 parts of titanium ingots and 20 parts of zirconium ingots were added after holding for 0.8 hours, and the temperature was kept at 1480°C for 20 minutes, and then 10 parts of aluminum ingots and 15 parts of magnesium ingots were added at 1580°C for 20 minutes, and then removed and floated in the liquid. The alloy liquid is obtained after the slag on the surface;

[0035] S2, pouring: pour the alloy liquid, and after the alloy liquid solidifies, cool it to room temperature to obta...

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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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