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Titanium hydride compound foam powder and quantitative combination process thereof

A technology of hydrogen compound and foaming powder, applied in the direction of transition element hydride, etc., can solve the problems of high speed of decomposition of titanium hydride, unstable production process, low product yield and other problems, so as to achieve low processing cost and reduce fine powder. Loss and hydrogen content are not easily reduced

Inactive Publication Date: 2010-02-17
刘学晖
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Problems solved by technology

The use of this foaming powder of unsaturated titanium hydrides with different hydrogen contents can well solve the problem of excessive decomposition and degassing of titanium hydride (TiH2) when producing foamed aluminum materials with small bubble size and high porosity. Excessive volatilization loss, unstable production process, and low product yield

Method used

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Embodiment Construction

[0020] Embodiments and process principles of the present invention will be described in detail below.

[0021] As we all know, in order to obtain aluminum foam materials with small bubble size and high porosity, the particle size of titanium hydride (TiH2) must be finer, but at the same time, the decomposition and degassing speed of titanium hydride (TiH2) is too fast, and the volatilization loss is too large. The production process is unstable, and the product yield is low. The present invention basically solves the above-mentioned difficulties through many small batch tests and pilot tests, and reaches the expected goal. In the titanium hydride foaming powder of the present invention, the hydrogen in the titanium hydride compound is an unsaturated amount. It is recommended that the hydrogen element content in the titanium hydride compound is 2%-3.5%.

[0022] The process it adopts is implemented according to the following steps:

[0023] 1. Cut, pulverize, clean and dry t...

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Abstract

The invention relates to a titanium hydride compound foam powder and a quantitative combination process thereof. The hydrogen content of titanium hydride in the foam powder is 2-3.5% of undercapacity.The preparation method comprises the following steps: placing titanium powder in a high-vacuum indirect boat-pushing type tube furnace, heating to a defined temperature, filling undercapacity hydrogen quantitatively to ensure that titanium is directly reacted with hydrogen to form saturated and unsaturated titanium hydride compounds with different hydrogen contents. The foam powder with unsaturated titanium hydride compounds can well solve the problems that the decomposition degassing rate is too fast, the volatilizing loss is too large, the production process is extremely unstable, the yieldis low and the like in the production of aluminum foam with small bubble size and high porosity.

Description

technical field [0001] The invention belongs to the technical field of material processing, in particular to a method for controlling the ratio of titanium and hydrogen content during the reaction of titanium and hydrogen to form a titanium hydrogen compound at a certain temperature, more specifically, placing titanium powder in a high vacuum indirect push boat In the tubular furnace, hydrogen is supplied quantitatively when heated to a certain temperature, and titanium and hydrogen are directly reacted to form unsaturated titanium hydrogen compounds with different hydrogen contents. Background technique [0002] With the rise of foam metal research, titanium hydride (TiH2) has begun to attract people's attention as an efficient foaming agent, especially in the process of preparing foamed aluminum, the foaming effect of titanium hydride (TiH2) has not yet been recognized by other methods. The foaming agent is replaced, and its air release performance has a great influence on...

Claims

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Application Information

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IPC IPC(8): C01B6/02
Inventor 刘学晖侯喜林
Owner 刘学晖
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