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Method for preparing high-wear-resistance hard alloy in powder metallurgy process

A kind of cemented carbide and powder metallurgy technology, applied in the direction of metal material coating process, coating, solid diffusion coating, etc. Strong corrosion resistance, good density and uniformity

Inactive Publication Date: 2020-04-17
柳州新开超华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The parts prepared by the traditional process are not wear-resistant, easy to be scratched after long-term use, the strength is not high, and they are not corrosion-resistant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1 A kind of high wear-resistant cemented carbide prepared by powder metallurgy

[0058] A high wear-resistant hard alloy prepared by powder metallurgy, the raw materials of which are: iron powder, aluminum powder, zinc powder, magnesium powder, silicon carbide powder, hafnium carbide powder and manganese zinc ferrite;

[0059] Wherein, the parts by weight of each raw material are:

[0060] 100 parts by weight of iron powder,

[0061] 28 parts by weight of aluminum powder,

[0062] 8 parts by weight of zinc powder,

[0063] 10 parts by weight of magnesium powder,

[0064] Silicon carbide powder 2 parts by weight,

[0065] Hafnium carbide powder 5 parts by weight,

[0066] 1 part by weight of manganese zinc ferrite.

Embodiment 2

[0067] Example 2 A kind of high wear-resistant cemented carbide prepared by powder metallurgy

[0068] A high wear-resistant hard alloy prepared by powder metallurgy, the raw materials of which are: iron powder, aluminum powder, zinc powder, magnesium powder, silicon carbide powder, hafnium carbide powder and manganese zinc ferrite;

[0069] Wherein, the parts by weight of each raw material are:

[0070] 105 parts by weight of iron powder,

[0071] 25 parts by weight of aluminum powder,

[0072] 10 parts by weight of zinc powder,

[0073] 6 parts by weight of magnesium powder,

[0074] Silicon carbide powder 4 parts by weight,

[0075] Hafnium carbide powder 3 parts by weight,

[0076] 3 parts by weight of manganese zinc ferrite.

Embodiment 3

[0077] Example 3 A kind of high wear-resistant cemented carbide prepared by powder metallurgy

[0078]A kind of high wear-resistant cemented carbide prepared by powder metallurgy method, its raw material selection:

[0079] Iron powder, aluminum powder, zinc powder, magnesium powder, silicon carbide powder, hafnium carbide powder and manganese zinc ferrite;

[0080] Wherein, the parts by weight of each raw material are:

[0081] 110 parts by weight of iron powder,

[0082] 22 parts by weight of aluminum powder,

[0083] 12 parts by weight of zinc powder,

[0084] 2 parts by weight of magnesium powder,

[0085] Silicon carbide powder 6 parts by weight,

[0086] 1 part by weight of hafnium carbide powder,

[0087] 5 parts by weight of manganese zinc ferrite.

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Abstract

The invention discloses a method for preparing a high-wear-resistance hard alloy in a powder metallurgy process. The method comprises the steps of raw material selection, drying, smashing, ball milling for mixing, cold press formation, high-temperature sintering, carburizing treatment and the like. According to the method for preparing the high-wear-resistance hard alloy in the powder metallurgy process, the preparation method is simple and scientific, by optimizing the process steps and the technical parameters, silicon carbide, hafnium carbide, manganese zinc ferrite and other raw materialsare added on the basis of iron powder and aluminum powder, the hard alloy prepared by using the method is resistant to high temperature, high in strength, resistant to wear, high in hardness, high indensity, high in anti-corrosion capacity, low in coefficient of thermal expansion, high in purity and high in compactness and uniformity, the bearing capacity of the hard alloy is improved, the service life of the hard alloy is prolonged, and the method is high in practicability and popularization value.

Description

technical field [0001] The invention relates to the technical field of hard alloys, in particular to a method for preparing high wear-resistant hard alloys by powder metallurgy. Background technique [0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. Cemented carbide is widely used as tool material, such as turning tools, milling cutters, planers, drills, boring tools, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used for cutting Difficult-to-machine materials such as heat-resistant steel, stainless steel, high manganese steel, and tool steel. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which basically remain unchanged even at a tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C33/02C23C8/22
CPCC22C33/0292C22C38/002C22C38/02C22C38/04C22C38/06C23C8/22
Inventor 宋佳潞
Owner 柳州新开超华科技有限公司
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