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Method for preparing nano titanium powder from hydrogen embrittlement metallic titanium

A technology of nano-titanium and metal titanium, applied in the direction of nanotechnology, etc., can solve the problems of cumbersome preparation process, high energy consumption, adverse environmental impact, etc., and achieve the effect of simple preparation process, low energy consumption and low price

Inactive Publication Date: 2020-04-28
丹阳汇鑫复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, as titanium is a highly active and high-strength metal, the titanium powder prepared by traditional preparation methods (sponge titanium grinding method, electrochemical method) is mostly micron-sized, and the preparation process for obtaining nano-sized titanium powder is relatively cumbersome and energy-consuming. Large (plasma sintering method), low purity, and most of the preparation process will have adverse effects on the environment, so it cannot be widely used

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  • Method for preparing nano titanium powder from hydrogen embrittlement metallic titanium
  • Method for preparing nano titanium powder from hydrogen embrittlement metallic titanium
  • Method for preparing nano titanium powder from hydrogen embrittlement metallic titanium

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Embodiment 1

[0026] A method for preparing nano-titanium powder from hydrogen embrittled metal titanium, characterized in that the nano-titanium powder is heated in a hydrogen atmosphere to cause hydrogen embrittlement of metal titanium, and is prepared by sanding with a nano-sand mill, and the size of the nano-titanium powder is The average particle size is around 50nm.

[0027] A method for preparing nano-titanium powder from hydrogen embrittled metal titanium:

[0028] step one:

[0029] First, the purchased ordinary titanium powder (above micron size) is cleaned with distilled water, filtered and centrifuged, and dried in a vacuum oven at a certain temperature; then the titanium powder is spread into a thin layer on a corundum plate Put it in the atmosphere furnace, under the hydrogen atmosphere, according to a certain heating process, heat the titanium powder to cause hydrogen embrittlement under the hydrogen atmosphere;

[0030] Step two:

[0031] Put the titanium powder cooled to...

Embodiment 2

[0035] A method for preparing nano-titanium powder from hydrogen embrittled metal titanium, the purchased titanium powder is under a hydrogen atmosphere, the heating temperature is 550-750 ° C, the holding time is about 240 min, and the finally prepared nano-titanium powder has a size of 50 about nm.

[0036] A method for preparing nano-titanium powder from hydrogen embrittled metal titanium, characterized in that the steps of the preparation method are as follows:

[0037] step one:

[0038] Firstly, the ordinary titanium powder purchased was washed with distilled water for 3-5 times, filtered, and centrifuged at 8000 r / min for 5 min in a centrifuge; kept in a vacuum oven at a vacuum degree of 0.1 Pa and a temperature of 80 °C. 12 h for drying treatment; after cooling to room temperature, spread the titanium powder on the corundum plate into a thin layer and place it in the atmosphere furnace, then close the exhaust valve of the atmosphere furnace, open the condensate water ...

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Abstract

The invention belongs to the technical field of metallurgical material preparation, and particularly relates to a method for preparing nano titanium powder from hydrogen embrittlement metallic titanium. The preparation method comprises the following steps that firstly, large-particle-size metallic titanium is put into an atmosphere furnace in a hydrogen atmosphere, and hydrogen atoms and titaniumatoms are made to be combined through a specific heating process to generate embrittlement; the embrittled metallic titanium is placed in a nanometer sand mill to be sanded to the nanometer level; andfinally, by setting a heating process, the sanded nano powder is placed in an atmosphere furnace to be subjected to dehydrogenation treatment, and the nano titanium powder is obtained. According to the method, the prepared nano titanium powder is of a pure phase structure, and the average size of titanium particles is about 50 nm; in addition, the process is simple and easy to operate, environment-friendly and pollution-free in process, low in cost and easy to popularize and implement.

Description

technical field [0001] The invention belongs to the field of nano material preparation, in particular to a preparation method of nano metal titanium powder. Background technique [0002] Titanium is a metal with strong corrosion resistance and high temperature resistance. Adding titanium nano-modified polymers to anti-corrosion coatings can further improve the heavy-duty anti-corrosion performance of the coatings. The main anti-corrosion mechanism of titanium nano-modified polymer anti-corrosion coating is: titanium nano-modified polymer can be uniformly and stably dispersed in the organic coating, and can exert the volume effect, surface effect, corrosion resistance effect and high temperature resistance of nanomaterials characteristic. Titanium nano-modified polymers can effectively fill the "micropores" in the coating and increase the adhesion between the coating and the substrate interface, thus greatly improving the anti-corrosion performance of the coating. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/02B22F9/04B82Y40/00
CPCB22F9/023B22F9/04B82Y40/00
Inventor 张昌海
Owner 丹阳汇鑫复合材料科技有限公司