Method for preparing high-purification ultrafine titanium powder for aviation

A titanium powder and aviation technology, which is applied in the field of preparation of high-purity ultra-fine titanium powder for aviation, can solve the problems of not being able to meet the requirements of adding aluminum alloy profiles for aviation, large dimensions, high impurity components, etc., and achieve good performance and structure. Lightweight and good toughness

Inactive Publication Date: 2008-04-23
BAOJI FIRST TITANIUM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The titanium powder particles made by this method are large and flake in size, with a particle size of more than 20 mesh, high impurity components,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Below in conjunction with embodiment, specific implementation is described in further detail:

[0008] When using titanium sponge to produce titanium powder, firstly select the titanium sponge according to the quality of the titanium powder to be produced, and pick out individual titanium sponge blocks such as severe oxidation and discoloration. If the titanium sponge has a long storage period, it needs to be dried. The temperature should be controlled within 100°C and generally kept for 30 minutes to ensure it is completely dry. Then put the titanium sponge into a special container to evacuate, so that the vacuum degree reaches 6*10 -2 Pa, and heated to 500°C-650°C at the same time, then inject the hydrogen purified by the hydrogen purification facility into the reaction vessel, keep it warm for about 2 hours, and then generate titanium hydride. Titanium hydride is prepared into titanium hydride powder with a special mechanical preparation machine, and then it is put ...

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PUM

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Abstract

The present invention relates to a preparation method of high-purity ultrafine titaminium powder for aviation industry. Said preparation method includes the following steps: selecting and using sponge titanium or titanium remainder as raw material, drying, injecting hydrogen under the vacuum condition to obtain titanium hydride, mechanically-granulating to obtain titanium hydride powder, vacuum heating and dehydrogenating to obtain dehydrogenated titanium, finally sorting, checking and packaging so as to implement preparation of titanium powder. The impurity content and oxygen content in said prepared titanium powder are low, the particle size of said titanium powder is small and its uniformity is good, its particle size can be reached to -10 meshes to -400 meshes. Said invention titanium powder can be used as additive for manufacturing aerial aluminium alloy with high strength and good toughness.

Description

technical field [0001] The invention relates to the field of preparation methods of titanium powder, in particular to the field of preparation methods of high-purity ultrafine titanium powder for aviation. Background technique [0002] At present, in the field of titanium powder preparation methods, the undersize produced by the crushing of titanium sponge or the shavings during titanium material processing are generally used to prepare titanium powder after mechanical crushing. The titanium powder particles made by this method are large and flake in size, with a particle size of more than 20 mesh, high impurity components, and severe oxidation, which can only meet the general civilian use, and cannot meet the requirements of adding aluminum alloy profiles for aviation. . Contents of the invention [0003] The object of the present invention is to provide a method for preparing high-purity ultra-fine titanium powder made of aluminum alloy materials for aviation. The titan...

Claims

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Application Information

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IPC IPC(8): B22F9/20
Inventor 王启录贾锁铭
Owner BAOJI FIRST TITANIUM IND GRP
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