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A kind of high clean tc4 titanium alloy ingot and preparation method thereof

A titanium alloy, clean technology, applied in the field of titanium alloy, can solve the problems of pollution, high gas content, uneven composition, etc., to achieve the effect of low gas content, ensure cleanliness, and avoid uneven composition

Active Publication Date: 2022-07-05
宁波创润新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the defects of the prior art, the present invention provides a high-clean TC4 titanium alloy ingot preparation method, which solves the problems that the material is easily polluted, introduces impurities, uneven composition, and high gas content during the ingot preparation process, and develops high-clean TC4 titanium Alloy ingot

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  • A kind of high clean tc4 titanium alloy ingot and preparation method thereof
  • A kind of high clean tc4 titanium alloy ingot and preparation method thereof
  • A kind of high clean tc4 titanium alloy ingot and preparation method thereof

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preparation example Construction

[0034] like figure 1 and figure 2 As shown, the present invention provides a method for preparing a high-clean TC4 titanium alloy ingot, comprising the following steps:

[0035] Step 1: Weigh high-purity titanium plate, high-purity titanium particles, aluminum wires and aluminum-vanadium master alloy particles so that the mass percentage of Al in the total raw material is 7.5%-9%, the mass percentage of V is 3.5-4%, and the rest is Ti; wherein the weight of Ti is the sum of the weight of the high-purity titanium plate and the high-purity titanium particles;

[0036] Step 2, using high-purity titanium plate to prepare several raw material boxes 6; distributing high-purity titanium particles 7, aluminum wires 8 and aluminum-vanadium intermediate alloy particles 8 in several raw material boxes 6 respectively; , Aluminum wire 8 and aluminum vanadium master alloy particles 8 are divided into several parts, and layer by layer according to the order of one high-purity titanium par...

Embodiment 1

[0052] The present embodiment provides a method for preparing a high-clean TC4 titanium alloy ingot, comprising the following steps:

[0053] Step 1: Bending and welding 99.95% of the titanium plate into a rectangular open titanium raw material box with a length of 60 cm, a width of 40 cm and a height of 40 cm. A total of 4 raw material boxes are made, and each raw material box is weighed and recorded. The weight is 9.4kg;

[0054] Step 2, select electrolytic titanium particles (granularity 1-5mm) with a chemical purity of 99.95% and an oxygen content of not more than 200ppm, aluminum vanadium master alloys with an oxygen content of not more than 300ppm (granularity of 1-5mm), and a high purity of 99.99%. Pure aluminum wire ( Cut to 59cm long);

[0055] Step 3, according to each raw material box 150kg material weight, and take by weighing the above-mentioned raw materials according to aluminum 8.5%, vanadium 3.8%, titanium balance, wherein the weight of titanium is the sum ...

Embodiment 2

[0063] The present embodiment provides a method for preparing a high-clean TC4 titanium alloy ingot, comprising the following steps:

[0064] Step 1: Bending and welding a titanium plate with a purity of 99.9% to make a rectangular open titanium raw material box with a length of 40 cm, a width of 40 cm and a height of 40 cm. A total of 6 raw material boxes are made, and each raw material box is weighed and recorded. , the weight is 7.3kg;

[0065] Step 2, choose the sponge titanium (granularity 0.83-12.7mm) of 0A grade, the aluminum vanadium intermediate alloy (granularity is 1-5mm) that oxygen content is not more than 800ppm, and the purity is 99.9% aluminum wire ( Cut to 39cm long);

[0066] Step 3, according to the material weight of 100kg per raw material box, and take by weighing the above-mentioned raw materials according to aluminum 8.0%, vanadium 4.0%, and titanium balance, wherein the weight of titanium is the sum of the weight of the raw material box and the weighe...

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Abstract

The invention provides a high-clean TC4 titanium alloy ingot and a preparation method thereof. The preparation method comprises the following steps: step 1, weighing high-purity titanium plate, high-purity titanium particles, aluminum wires and aluminum-vanadium intermediate alloy particles; step Second, use high-purity titanium plate to prepare several raw material boxes; distribute the materials in several raw material boxes; divide high-purity titanium particles, aluminum wires and aluminum-vanadium intermediate alloy particles into several parts, and arrange them layer by layer according to the One part of high-purity titanium particles and one part of aluminum-vanadium master alloy particles are alternately laid layer by layer, and the aluminum wire is laid in the aluminum-vanadium master alloy particles; step 3, after the distribution is completed, push the raw material box into the monolithic bin inside; close the whole silo and vacuumize; after vacuuming, use electron beam to smelt until the ingot is smelted. The preparation method provided by the invention eliminates the possibility of introducing pollution to the material during the pressing process, ensures the uniformity of the composition of the ingot, and can prepare the TC4 titanium alloy with high cleanliness.

Description

technical field [0001] The invention relates to the technical field of titanium alloys, in particular to a high clean TC4 titanium alloy ingot and a preparation method thereof. Background technique [0002] TC4 titanium alloy was first successfully developed by the United States in 1954, and has now developed into an international titanium alloy. It is the most comprehensive and in-depth titanium alloy researched on it. application. TC4 titanium alloy has good mechanical properties at room temperature and high temperature, and is widely used in the manufacture of various aviation structural parts and fan blades of aero-engines, compressor discs, pressure vessels and structural parts of aerospace vehicles, etc. above 50. The alloy is an α+β type titanium alloy with good comprehensive properties. It has good process plasticity and superplasticity. The α+β / β transformation temperature of the alloy is between 980 and 1010°C, and the long-term working temperature can reach 400°...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/03C22B9/22B22D7/00
CPCC22C14/00C22C1/03C22B9/228B22D7/005
Inventor 吴景晖徐超董鑫宋彦明姚力军
Owner 宁波创润新材料有限公司
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