Preparation technology of titanium alloy under ultralow temperature condition

A preparation process, titanium alloy technology, applied in the field of titanium alloy preparation process, can solve the problem that titanium alloy cannot meet the ultra-low temperature requirements, and achieve the effect of improving plasticity, good structure uniformity, and wide application field

Active Publication Date: 2013-04-10
SHENYANG HENGYUNDA TITANIUM DEV
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a titanium alloy preparation process for ultra-low temperature conditions in order to solve the problem that the titanium alloy produced by the existing titanium alloy preparation process cannot meet the ultra-low temperature requirements

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  • Preparation technology of titanium alloy under ultralow temperature condition
  • Preparation technology of titanium alloy under ultralow temperature condition
  • Preparation technology of titanium alloy under ultralow temperature condition

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Embodiment Construction

[0020] A preparation process for titanium alloys under ultra-low temperature conditions according to the present invention is as follows:

[0021] The first step, mixing: take Ti 1288.2Kg, Al 89.28 Kg, V59.04 Kg, Fe 1.44 Kg, O 0.86Kg, H 0.028 Kg, Zr 1.152 Kg, put them into the distributor and mix them fully, the particle size of Ti particles The particle size of Al, V and Zr is 0.2-2.5mm;

[0022] The second step, electrode production: Put the alloy mixed in the first step into the mold of a 2500-ton vertical hydraulic press to extrude the electrode. The weight of each electrode is 45Kg, and a total of 32 electrodes are produced;

[0023] Step 3: Smelting in a vacuum furnace: Put the electrode made in the second step into a vacuum furnace for smelting. In the vacuum furnace, Φ300*L, Φ380*L and Φ480*L should be smelted three times. The specific smelting The process is as follows:

[0024] First smelting: After using the argon arc welding machine to weld the eight electrodes m...

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Abstract

The invention discloses a preparation technology of a titanium alloy under an ultralow temperature condition. The technology comprises the following specific steps of 1, mixing, 2, fabricating an electrode, 3, smelting in a vacuum furnace, 4, cogging, 5, loading a blank of a sawing machine and a reground forging blank into an electric furnace, heating to 1030 DEG C, conducting triaxial upsetting, drawing and rolling, and polishing and repair, 6, loading the polished blank into the furnace, and conducting intermediate repair, and 7, loading a repaired and polished titanium alloy blank into the electric furnace, and conducting upsetting and drawing on 100mm*L and 75mm*L rods after the blank is discharged. The preparation technology has the benefits that a titanium alloy material prepared by the preparation technology is low in impurity content, has ultra-high purity, and can work at -253 DEG C; compared with the existing related titanium alloy material, an operating condition is reduced by 57 DEG C; and the titanium alloy material has a wider application field.

Description

technical field [0001] The invention relates to a preparation process of titanium alloy, in particular to a preparation process of titanium alloy used under ultra-low temperature conditions. Background technique [0002] At present, titanium alloy has rapidly developed into a new type of key structural material with strong vitality due to its high specific strength, excellent corrosion resistance, and good low-temperature performance, and is widely used in aerospace, military industry, and civilian fields. Because the density of titanium alloy is much smaller than that of stainless steel, and it has low thermal conductivity, small expansion coefficient and non-magnetic properties at low temperatures, it is used as an important low-temperature alloy in the aerospace industry, superconducting industry, ship navigation industry, and deep-sea exploration. engineering materials to use. Structural parts used at low temperature require good plasticity, low thermal conductivity and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22F1/18C22C14/00
Inventor 陈国财杨文甲单学锋陈苏晁雷张宝利
Owner SHENYANG HENGYUNDA TITANIUM DEV
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