Preparation of titanium carbide micro powder

A technology of titanium carbide micropowder and titanium powder, which is applied in the field of preparation of titanium carbide micropowder, can solve the problems of difficulty in controlling the form of titanium carbide, limitation of output quality improvement, and low purity of synthetic products, and achieve easy control, easy crushing, and low raw material cost. low effect

Inactive Publication Date: 2009-07-22
WEIFANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the purity of the synthetic product is low and the purification is difficult;
[0011] In summary, in the process of preparing TiC, there are some problems such as high preparation cost, difficult purification, high conversion temperature, high yield, or even quality. The improvement is limited, or high-purity, fine Ti powder is required as a raw material, or the shape of titanium carbide is difficult to control and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: Weigh the micron titanium powder and sucrose according to the mass ratio of titanium powder:sucrose=47:43.2;

[0034] The second step: mix the raw material powder according to the proportion of ingredients, and then wet-grind it on a ball mill for 24 hours, the ball-to-material ratio is 3:1, the ball mill speed is 240r.p.m, and the ball milling medium is alcohol;

[0035] The third step: drying the mixed slurry after ball milling in a drying oven, the drying temperature is 50 °C, and the drying time is 36 hours;

[0036] The fourth step: put the dried block material into the boiling soybean salad oil for carbonization, and the carbonization time is 10 to 40 minutes to obtain the porous block carbonized material.

[0037] The fifth step: crushing the porous block solid obtained after carbonization, drying in a drying box to remove oil, the drying temperature is 200 ° C, and the drying time is 24 hours;

[0038] The sixth step: put the degreasing material into th...

Embodiment 2

[0040] Step 1: Weigh the micron titanium powder and sucrose according to the mass ratio of titanium powder:sucrose=47:39.2;

[0041] The second step: mix the raw powder according to the composition ratio, and then wet-grind it on a ball mill for 60 hours, the ball-to-material ratio is 3:1, the ball mill speed is 120r.p.m, and the ball milling medium is alcohol;

[0042] The third step: drying the mixed slurry after ball milling in a drying box, the drying temperature is 90 °C, and the drying time is 24 hours;

[0043] The fourth step: put the dried block material into the boiling peanut oil for carbonization, and the carbonization time is 10-40 minutes to obtain the porous block carbonized material.

[0044] The fifth step: crushing the porous block solid obtained after carbonization, drying in a drying box to remove oil, the drying temperature is 50 ° C, and the drying time is 36 hours;

[0045] The sixth step: put the degreasing material into the burning boat, ignite the sp...

Embodiment 4

[0056] Step 1: Weigh micron-sized titanium powder and sucrose according to the mass ratio of titanium powder: sucrose ratio = 47:31.2;

[0057] The second step: mix the raw material powder according to the proportion of the ingredients, and then wet mill on the ball mill for 72 hours, the ratio of ball to material is 3:1, the speed of the ball mill is 50r.p.m, and the ball milling medium is alcohol;

[0058] Step 3: Dry the mixed slurry after ball milling in a drying box at a drying temperature of 100°C and a drying time of 0.5 hours;

[0059] Step 4: put the dried block material into boiling diesel oil for carbonization, and the carbonization time is 10-40 minutes to obtain porous block carbonized material.

[0060] Step 5: Break the porous block solid obtained after carbonization, and dry it in a drying box to remove oil. The drying temperature is 150°C and the drying time is 30 hours;

[0061] Step 6: Put the deoiled material into the burning boat, ignite it through the ig...

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PUM

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Abstract

The invention discloses a method for preparing titanium carbide micro powder. Titanium powder and sucrose with the mass ratio of 1 to 1.6:1 are mixed, milled with balls, dried, then carbonized in boiling oil, dried, removed with oil and ignited, and then an auto-igniting reaction happens and titanium carbide is produced. The method mainly utilizes the sucrose to cover titanium powder particles, then carbonization is carried out to generate carbon which is used for covering the titanium powder particles; the contact area between carbon and titanium is fairly large and a carbon layer is remained between the titanium powder particles and particles, therefore, during the auto-igniting reaction, the carbonized titanium powder is not easy to agglomerate and the technique process is simple and easy to be controlled.

Description

technical field [0001] The invention relates to the technical field of composite organic and inorganic materials, in particular to a preparation method of titanium carbide micropowder. Background technique [0002] Titanium carbide has high melting point, high hardness and good chemical stability. It is mainly used to manufacture cermets, heat-resistant alloys and cemented carbides. At the same time, they have excellent electrical conductivity and are the preferred materials for electrodes. Multiphase materials prepared from titanium carbide have a wide range of applications in machining, metallurgical mining, aerospace, fusion reactors and other fields. There are various methods for synthesizing TiC, mainly including: [0003] 1. Carbothermal reduction method: The industrial TiC powder was initially reduced by carbon black to reduce TiO 2 to prepare; [0004] 2. Direct carbonization method: TiC powder is formed by the reaction of Ti powder and carbon powder. The above re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/30
Inventor 刘均波
Owner WEIFANG UNIVERSITY
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