Preparation method of short-process titanium alloy Ti-Ni-Nb

A titanium alloy and short-process technology, which is applied in the field of short-process titanium alloy Ti-Ni-Nb preparation, can solve the problems of high energy consumption and low material yield, and achieve uniform composition, high quality, and shortened process flow Effect

Active Publication Date: 2013-03-13
SHANGHAI UNIV
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Problems solved by technology

[0006] The crucible-type vacuum induction melting method may be an effective way to solve the cur...

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  • Preparation method of short-process titanium alloy Ti-Ni-Nb
  • Preparation method of short-process titanium alloy Ti-Ni-Nb

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, short-flow process titanium alloy of the present invention Ti-Ni-Nb The specific examples of the preparation method are described as follows.

[0020] A short process titanium alloy Ti-Ni-Nb The preparation method is made of crucible-type vacuum induction melting technology and the cold-bed furnace melting technology of titanium and titanium alloy, has the following steps:

[0021] a) Prepare raw materials according to the composition of Ti-Ni-Nb alloy, and pretreat the raw materials; residual titanium materials: including residual titanium scraps and titanium scraps, which need to be of the same grade, and the processed particle size is basically the same as that of sponge titanium. After degreasing 1. Standby after deoxidizing skin treatment; the titanium sponge and alloy elements are dried in a vacuum drying oven to remove the moisture adsorbed on the surface. Drying conditions: temperature is about 120~180°C; vacuum d...

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Abstract

The invention relates to an energy-saving high-efficiency short-procedure process for preparing a high-quality titanium alloy Ti-Ni-Nb. The energy-saving high-efficiency short-procedure process comprises a crucible vacuum induction melting (VIM) technology of titanium and a titanium alloy and a cold hearth melting (CHM) technology of titanium and the titanium alloy. The VIM technology is used for preparing a primarily cast ingot of titanium and the titanium alloy, and replacing vacuum consumable-electrode arc melting (VAR) electrode preparation of an alloy in the traditional preparation process and one-time smelting of the alloy, and the CHM technology is used for carrying out secondary refining of the primarily cast ingot of titanium and the titanium alloy and preparing the cast ingot of titanium and the titanium alloy, in a required shape. According to the energy-saving high-efficiency short-procedure process for preparing the high-quality titanium alloy Ti-Ni-Nb, the preparation procedure of the alloy can be simplified, and high-quality alloy cast ingots of multiple shapes are produced.

Description

technical field [0001] The invention relates to a preparation method of a short-flow titanium alloy Ti-Ni-Nb, which belongs to the technical field of non-ferrous metal titanium alloy materials. Background technique [0002] Titanium and titanium alloys have the advantages of high specific strength, good corrosion resistance and high heat resistance, and are widely used in various fields such as aviation and aerospace. After the Cold War, titanium and titanium alloys quickly changed from military needs to civilian use, and are mostly used in aerospace, ocean development, chemical facilities, and daily light industry. At present, titanium alloy is in the stage of transforming from the color type of "strategic materials" to the mass type of "general materials". Although titanium is the fourth richest resource after iron, aluminum, and magnesium among the world's mineral resources, it is expected to become the third practical metal after iron and aluminum, and its development a...

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Application Information

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IPC IPC(8): C22C1/02C22C1/06C22C14/00
Inventor 李重河王宁鲁雄刚庞远林张捷宇杨昭
Owner SHANGHAI UNIV
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