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Titanium-silicon alloy material and preparation method thereof

A titanium-silicon alloy and raw material technology, which is applied in the field of metallurgy, can solve the problems of cumbersome raw material processing, etc., and achieve the effect of low alloy density, wide source of raw materials, and easy separation

Active Publication Date: 2017-05-10
广西亚龙铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing of its raw materials is more cumbersome
At present, there is no report on the one-step synthesis of titanium dioxide by electrosilicon thermal reduction to prepare titanium-silicon alloy.

Method used

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  • Titanium-silicon alloy material and preparation method thereof
  • Titanium-silicon alloy material and preparation method thereof

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preparation example Construction

[0032] 2. The preparation method of titanium-silicon alloy material, such as figure 1 As shown in the flowchart of the preparation method of the titanium-silicon alloy material of the present invention, it comprises the following steps:

[0033] a. Ingredients: 35.7-38.5 parts by weight of titanium dioxide, 26.9-32 parts by weight of silicon powder, and 25-34.6 parts by weight of calcium oxide;

[0034] b. Mixing: Mix the ingredients prepared in step a evenly;

[0035] c. Roasting: roast the raw materials mixed in step b, the roasting temperature is 1450-1600°C, and the roasting time is 10-30 minutes;

[0036] d. Cooling: cooling the raw material roasted in step c to realize effective separation of titanium-silicon alloy and molten slag.

[0037] Wherein, after step d is cooled as figure 2 As shown in the figure of the titanium-silicon alloy material sample prepared by the present invention, the slag is on the surface of the titanium-silicon alloy, and the color is differe...

Embodiment 1

[0047] Weigh 37.1 parts by weight of titanium dioxide, 29.6 parts by weight of silicon powder, and 33.3 parts by weight of CaO. Add the above raw materials into a ball mill for mixing and ball milling for 1 hour. The samples obtained after mixing were placed in a muffle furnace for calcination at 1550°C, and the calcination time was 20 minutes. The calcined alloy material is naturally cooled in an air atmosphere to obtain titanium-silicon alloy and slag.

[0048] The measured main chemical components of the titanium-silicon alloy material are: 54.5 parts by weight of Ti, 43.5 parts by weight of Si, 1.3 parts by weight of O, and 0.8 parts by weight of others; the calculated titanium yield is 90%.

Embodiment 2

[0050] Weigh 38.5 parts by weight of titanium dioxide, 26.9 parts by weight of silicon powder, and 34.6 parts by weight of CaO. Add the above raw materials into a ball mill for mixing and ball milling for 1 hour. Add the mixed raw materials into the corundum crucible, and then put the mixed samples into the muffle furnace for roasting at 1500°C for 30 minutes. The calcined alloy material is naturally cooled in an air atmosphere to obtain titanium-silicon alloy and slag.

[0051] The measured main chemical components of the titanium-silicon alloy material are: 57.1 parts by weight of Ti, 41.9 parts by weight of Si, 2.3 parts by weight of O, and 1 part by weight of others; the calculated titanium yield is 92%.

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Abstract

The invention belongs to the technical field of metallurgy, and relates to a titanium alloy material and a preparation method thereof, in particular to a titanium-silicon alloy and a preparation method thereof. The titanium-silicon alloy material comprises, by weight, 37-60 parts of Ti and 40-63 parts of Si. The preparation method of the titanium-silicon alloy material comprises the following steps of a, preparing materials, b, mixing uniformly, c, roasting and d, cooling, wherein in the step a, 35.7-38.5 parts of titanium pigment, 26.9-32 parts of silicon powder and 25-34.6 parts of calcium oxide, by weight, are taken; in the step b, the materials prepared in the step a are mixed uniformly; in the step c, the raw materials mixed uniformly in the step b are roasted, the roasting temperature is 1450-1600 degrees and the roasting time is 10-30min; in the step d, the raw materials after the roasting in the step c are cooled, and effective separation between the titanium-silicon alloy and slag is realized. The titanium-silicon alloy is prepared through one-step synthesis by employing an electro-silicothermic process to reduce titanium pigment, the preparation method is simple in technology, the preparation of the titanium-silicon alloy is not required to be carried out in an inert gas or vacuum environment, the energy consumption is low, the titanium-silicon alloy can be produced and prepared in scale, and the titanium-silicon alloy and the preparation method have great application prospects.

Description

technical field [0001] The invention relates to a titanium alloy material and a preparation method thereof, in particular to a titanium-silicon alloy and a preparation method thereof, belonging to the technical field of metallurgy. Background technique [0002] my country's titanium resources are very rich, and its reserves rank among the top in the world. The production of titanium dioxide has a considerable scale, but the research on the preparation of titanium-silicon materials is relatively small, and the research on titanium-silicon alloys has great practical significance. [0003] Intermetallic compounds with high melting point have low density and good oxidation resistance, so they are widely valued. TiSi 2 It is an important silicide with good high temperature stability, high high temperature strength and good oxidation resistance, and it is expected to become a structural material used above 1200 °C. Due to its low electrical and thermal resistance, TiSi 2 It is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C29/18C22C1/05
CPCC22C1/05C22C1/058C22C14/00C22C29/18
Inventor 李军杨绍利吴恩辉侯静马兰赖奇王涛黄平
Owner 广西亚龙铝业有限公司
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