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Nanocrystalline composite material for 3C product and preparation method

A composite material and nanocrystalline technology, which is applied in the field of nanocrystalline composite materials and preparations for 3C products, can solve the problem that processed materials cannot meet high strength and high hardness, and achieve enhanced crack resistance and transverse fracture The effect of toughness

Inactive Publication Date: 2020-07-31
CHENGDU MET CERAMIC ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a nanocrystalline composite material for 3C products and its preparation method to solve the technical problem that the processing materials of "3C products" in the prior art often cannot meet the requirements of high strength and high hardness

Method used

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  • Nanocrystalline composite material for 3C product and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Accessories:

[0035] The forming agent adopts powdered paraffin wax, and the amount of paraffin wax added is 2.5% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0036] The dispersant adopts ethanol, and the addition of ethanol is 35% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0037] 2. The preparation method comprises the following steps:

[0038] (1) Wet grinding (the ratio of ball to material is 5:1):

[0039] ① Add paraffin and ethanol to the ball mill, and pre-grind the paraffin in ethanol for 2 hours;

[0040] ②Put vanadium carbide powder and chromium carbide powder into the ball mill, and continue ball milling for 2 hours;

[0041] ③Put WC powder and Co powder into the ball mill and continue ball milling for 74 hours;

[0042] ④ Add AlN whiskers and Ti...

Embodiment 2

[0047] 1. Accessories:

[0048] The molding agent adopts PEG, and the addition amount of PEG is 2.2% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0049] The dispersant is ethanol, and the amount of ethanol added is 30% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0050] 2. The preparation method comprises the following steps:

[0051] (1) Wet grinding (the ratio of ball to material is 5:1):

[0052] ① Add PEG and ethanol to the ball mill, and pre-grind PEG in ethanol for 2 hours;

[0053] ②Put vanadium carbide powder and chromium carbide powder into the ball mill, and continue ball milling for 3 hours;

[0054] ③Put WC powder and Co powder into the ball mill and continue ball milling for 49 hours;

[0055] ④ Add AlN whiskers and TiN whiskers into the ball mill, and con...

Embodiment 3

[0060] 1. Accessories:

[0061] The molding agent adopts stearic acid, and the addition of stearic acid is 2.0% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0062] The dispersant adopts hexane, and the addition of hexane is 25% of the total weight of the main ingredients (Co powder, AlN whisker, TiN whisker, chromium carbide powder, vanadium carbide powder and WC powder);

[0063] 2. The preparation method comprises the following steps:

[0064] (1) Wet grinding (the ratio of ball to material is 5:1):

[0065] ① Add stearic acid and hexane into the ball mill, pre-grind stearic acid in hexane for 2 hours;

[0066] ②Put vanadium carbide powder and chromium carbide powder into the ball mill, and continue ball milling for 4 hours;

[0067] ③Put WC powder and Co powder into the ball mill and continue ball milling for 88 hours;

[0068] ④ Add AlN whiskers and TiN whiskers into...

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Abstract

The invention provides a nanocrystalline composite material for a 3C product and a preparation method. The technical problem that in the prior art, processing materials of ''3C products'' usually cannot well meet the requirements for high strength and high hardness is solved. According to the preparation method, the nanocrystalline composite material comprises, in percentage by weight, the main materials of 6-6.5% of Co powder, 0.1-3% of AlN whiskers, 0.1-3% of TiN whiskers, 0.1-1% of chromium carbide powder, 0.1-1% of vanadium carbide powder and the balance of WC powder. According to the nanocrystalline composite material for the 3C product, the strength, hardness, toughness level and transverse fracture toughness are all greatly improved; and higher requirements of current 3C product milling and micro-drilling for high strength and high hardness of the processing materials and the requirements for high precision and a high degree of finish are met.

Description

technical field [0001] The invention relates to a composite material for 3C products, in particular to a nanocrystalline composite material for 3C products and a preparation method thereof. Background technique [0002] The so-called "3C products" are generally a collective term for computer, communication and consumer electronics products, also known as "information home appliances". Examples include computers, tablets, mobile phones, or digital audio players. [0003] At present, the milling and micro-drilling of "3C products" have requirements for processing materials with high strength, high hardness, high precision, high wear resistance, long life and high finish, but the processing materials in the prior art are often not very good. Meet the above requirements. [0004] The applicant finds that the prior art has at least the following technical problems: [0005] 1. The processing materials of "3C products" in the prior art often cannot meet the requirements of high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/14C22C49/02C22C49/14C22C101/16
CPCC22C47/14C22C49/02C22C49/14
Inventor 单成颜焰
Owner CHENGDU MET CERAMIC ADVANCED MATERIALS
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