A kind of preparation method of wear-resistant alloy material

A technology of wear-resistant alloy and manganese alloy is applied in the field of preparation of wear-resistant alloy materials, which can solve the problems of long production process and large material consumption.

Active Publication Date: 2022-08-09
JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP HLDG CO LTD
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Problems solved by technology

[0005] Based on this, the purpose of the present invention is to provide a preparation method of a wear-resistant alloy material, which is used to solve the technical problems of wet extraction of manganese in the prior art, resulting in a long production process for making wear-resistant alloy materials and large material consumption.

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  • A kind of preparation method of wear-resistant alloy material
  • A kind of preparation method of wear-resistant alloy material

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[0024] The embodiment of the present invention specifically provides a method for preparing a wear-resistant alloy material in view of the technical problems that the current wet extraction of manganese leads to a long production process and a large material consumption for the production of wear-resistant alloy materials, wherein the method includes:

[0025] The manganese slag is heated in an aerobic environment to obtain a solid slag rich in manganese dioxide;

[0026] adding carbon powder or ferrosilicon alloy to the solid slag rich in manganese dioxide, and after high temperature reduction smelting, a manganese alloy is obtained;

[0027] After mixing the manganese alloy and the ferrotungsten alloy according to the set ratio, a premix is ​​obtained, and the premix is ​​smelted at a high temperature to obtain the ferrotungsten manganese alloy;

[0028] The tungsten-ferromanganese alloy is poured into a mold to form a blank, and the wear-resistant alloy material is obtained...

Embodiment 1

[0040] The preparation method of the wear-resistant alloy material in this embodiment includes the following steps:

[0041] The tungsten iron alloy composition contains 8.34% tungsten and 91.45% iron. The manganese slag was roasted with oxygen to obtain solid slag rich in manganese dioxide, and the manganese alloy was prepared by carbothermic reduction at 1650°C. The ferrotungsten alloy and the manganese alloy obtained respectively are smelted at a ratio of 5:1 to obtain the ferrotungsten manganese alloy, and the smelting temperature is 1450°C, and the ferrotungsten manganese alloy is poured into a mold to form a blank. The blank is calcined at a high temperature of 1100°C for 1 hour, and then a wear-resistant liner can be prepared after quenching. The obtained ball mill liner material has high hardness and good wear resistance, and the surface of the material reaches 582 Brinell hardness.

Embodiment 2

[0043] The preparation method of the wear-resistant alloy material in this embodiment includes the following steps:

[0044] The tungsten-ferrous alloy composition contains 9.21% tungsten and 89.45% iron. The manganese slag was roasted with oxygen-rich to obtain solid slag rich in manganese dioxide, and the manganese alloy was prepared by carbothermic reduction at 1600°C. The ferrotungsten alloy and the manganese alloy obtained respectively are smelted at a ratio of 6:1 to obtain a ferrotungsten manganese alloy, and the smelting temperature is 1500°C, and the ferrotungsten manganese alloy is poured into a mold to form a blank. The blank is calcined at a high temperature of 1150°C for 2 hours, and then a wear-resistant liner can be prepared after quenching. The obtained ball mill liner material has high hardness and good wear resistance, and the surface of the material reaches 593 Brinell hardness.

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Abstract

The invention provides a method for preparing a wear-resistant alloy material. The method comprises the following steps: heating manganese slag in an aerobic environment to obtain solid slag rich in manganese dioxide; adding carbon to the solid slag rich in manganese dioxide Powder or ferrosilicon alloy, after high temperature reduction and smelting, obtain manganese-rich alloy; mix manganese alloy and ferrotungsten alloy according to the set ratio to obtain premix, and smelt premix at high temperature to obtain ferrotungsten manganese alloy; The manganese alloy is poured in the mold to form a blank, and the wear-resistant alloy material is obtained after the blank is subjected to a heat treatment process. The preparation method of the above-mentioned wear-resistant alloy material, by adding carbon powder or ferrosilicon alloy to manganese dioxide obtained by heating manganese slag in an oxygen environment, and obtaining a manganese alloy after high-temperature reduction and smelting, instead of the traditional method. The technical scheme of wet recovery of crude manganese carbonate solves the technical problems of wet extraction of manganese in the prior art, which leads to long production process flow and large material consumption for producing wear-resistant alloy materials.

Description

technical field [0001] The invention relates to the technical field of pyrometallurgy, in particular to a preparation method of a wear-resistant alloy material. Background technique [0002] With the gradual reduction of mineral resources, the demand in daily life is still there, making the extraction of mineral metals from mineral slag more and more meaningful. [0003] In smelting enterprises, tungsten slag and manganese slag are usually produced. Over the years, the accumulated tungsten slag in my country has reached 1 million tons, and the annual increase is nearly 80,000 tons. Tungsten slag contains valuable metals such as W and Fe. Recovering the valuable metals in tungsten slag can create great economic value, with significant economic benefits and great significance. [0004] Among the prior art, the method of reclaiming crude manganese carbonate by wet method is generally used first. Specifically, after leaching, impurity removal is adopted to prepare products such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/06C22C38/04C22C38/12C22C35/00
CPCC22C33/06C22C38/12C22C38/04C22C35/00Y02P10/20
Inventor 李忠岐洪侃张金祥徐建兵管建红陈东英梁鑫周宝炉王明陈后兴伍莺曾鹏
Owner JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP HLDG CO LTD
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