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TC4 titanium alloy and preparation method thereof

A technology of titanium alloy and titanium dioxide, which is applied in the field of TC4 titanium alloy and its preparation, can solve the problems of high smelting environment and equipment requirements, high production cost, long process flow, etc., and achieves favorable separation, low production cost and low raw material price. cheap effect

Inactive Publication Date: 2018-01-30
攀枝花市梦梦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a TC4 titanium alloy and a preparation method thereof, which can effectively solve the problem that the existing TC4 titanium alloy has a relatively long technological process, high production costs, and the impact on the smelting environment and the production process. Questions with high equipment requirements

Method used

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  • TC4 titanium alloy and preparation method thereof
  • TC4 titanium alloy and preparation method thereof
  • TC4 titanium alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A preparation method of TC4 titanium alloy, comprising the following steps:

[0028] (1) Grinding 10min with the sample preparation machine of flake vanadium pentoxide, taking by weighing vanadium pentoxide powder 3g (1.5wt%), titanium dioxide 90g (45wt%), aluminum powder 36g (18wt%) and unslaked lime powder 71g ( 35.5wt%) is placed in a ball mill jar, and taken out after ball milling by a ball mill for 1 h;

[0029] Among them, the purity of vanadium pentoxide is ≥99%, and TiO in titanium dioxide 2 The content of Al ≥ 98%, the content of Al in aluminum powder ≥ 99%, the content of CaO in quicklime ≥ 98%;

[0030] Vanadium pentoxide particle size ≤0.10mm, titanium dioxide particle size ≤0.075mm, aluminum powder particle size ≤0.10mm, quicklime particle size ≤0.10mm;

[0031] (2) Place the product obtained in step (1) in a corundum crucible, put the corundum crucible into a heated muffle furnace at a temperature of 1450°C, keep it warm for 30 minutes, then take out the...

Embodiment 2

[0035] A preparation method of TC4 titanium alloy, comprising the following steps:

[0036] (1) Grind flake vanadium pentoxide with a sample maker for 10min, weigh 4g (2wt%) of vanadium pentoxide powder, 80g (40wt%) of titanium dioxide, 42g (21wt%) of aluminum powder and 74g (37wt%) of quicklime powder %) is placed in a ball mill jar, and taken out after ball milling by a ball mill for 0.5h;

[0037] Among them, the purity of vanadium pentoxide is ≥99%, and TiO in titanium dioxide 2 The content of Al ≥ 98%, the content of Al in aluminum powder ≥ 99%, the content of CaO in quicklime ≥ 98%;

[0038] Vanadium pentoxide particle size ≤0.10mm, titanium dioxide particle size ≤0.075mm, aluminum powder particle size ≤0.10mm, quicklime particle size ≤0.10mm;

[0039](2) Put the product obtained in step (1) in a corundum crucible, put the corundum crucible into a heated muffle furnace at a temperature of 1550°C, keep it warm for 15 minutes, then take out the crucible and air-cool it t...

Embodiment 3

[0043] A preparation method of TC4 titanium alloy, comprising the following steps:

[0044] (1) Weigh 4g (2wt%) of vanadium pentoxide powder, 84g (42wt%) of titanium dioxide, 40g (20wt%) of aluminum powder and 76g (36wt%) of quicklime powder and place them in a ball mill jar, and use a ball mill to grind for 1h take out;

[0045] Among them, the purity of vanadium pentoxide is ≥99%, and TiO in titanium dioxide 2 The content of Al ≥ 98%, the content of Al in aluminum powder ≥ 99%, the content of CaO in quicklime ≥ 98%;

[0046] Vanadium pentoxide particle size ≤0.10mm, titanium dioxide particle size ≤0.075mm, aluminum powder particle size ≤0.10mm, quicklime particle size ≤0.10mm;

[0047] (2) Put the product obtained in step (1) in a corundum crucible, put the corundum crucible into a heated muffle furnace at a temperature of 1650°C, keep it warm for 20 minutes, then take out the crucible and air-cool it to room temperature to obtain TC4 titanium alloy and aluminum Thermal r...

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Abstract

The invention discloses a preparation method of a TC4 titanium alloy. The preparation method comprises the following steps: firstly, uniformly mixing vanadium pentoxide, titanium dioxide, aluminum powder and quick lime to obtain a mixed material; secondly, carrying out thermite reaction on the mixed material to obtain a crude TC4 titanium alloy; thirdly, preheating the crude TC4 titanium alloy, and then refining to obtain the TC4 titanium alloy. The TC4 titanium alloy prepared by the method is prepared from the following components in percentage by weight: 5.45 to 6.75 weight percent of Al, 3.45 to 4.5 weight percent of V, 0.08 to 0.2 weight percent of O, smaller than or equal to 0.30 weight percent of Fe, smaller than or equal to 0.10 weight percent of C, smaller than or equal to 0.05 weight percent of N, smaller than or equal to 0.015 weight percent of H and the balance of Ti. The preparation method has the advantages of simplicity, low price of raw materials, low production cost andsuitability for industrial production.

Description

technical field [0001] The invention belongs to the technical field of TC4 titanium alloy, and in particular relates to a TC4 titanium alloy and a preparation method thereof. Background technique [0002] TC4 (Ti-6Al-4V) titanium alloy has excellent comprehensive properties and is widely used in aviation, aerospace, ships, weapons, chemical industry, medical treatment, sports and leisure and other fields, and has become the international general-purpose titanium with the largest industrial consumption in the world. alloy. Since metal titanium is relatively active and easily reacts with oxygen and nitrogen in the air, the production process of TC4 titanium alloy has high requirements for melting environment and equipment. In addition, one of the main raw materials required for the current TC4 titanium alloy preparation process is sponge. Titanium, the Kroll method is generally used to produce sponge titanium. The Kroll method has complex processes, long production cycles, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22B9/04C22C14/00
Inventor 杨绍利马兰黄栋钟凯文廖鑫
Owner 攀枝花市梦梦科技有限公司
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