Ti absorbs H2 during the temperature is more than 300℃, however, when the temperatures is more than 1000℃, the TiH2 resolves into Ti and H2.
Titanium hydrogenate powder is added as an foam additive in the production of foam aluminum. With the H2 is released, the hole is formed; and also the Ti element increases the toughness of the aluminum material.
HDH method is kind of method that using titanium sponge absorption brittle after hydrogen, easy to be mechanically crushing, made to be titanium hydrogenated powder, and then get the pure titanium powder under high vacuum dehydrogenate.
We use the horizontal hydrogenation furnace, temperature rise to 350 ℃ above with the condition of hydrogen pressure in the positive pressure when the hydrogenation occurs. Then the reaction began to intense while the temperature was rising, and quickly a lot of hydrogen was absorbed. Hydrogen insulation stay for 3 hours, and then Hydrogen in the atmosphere slowly cooled to room temperature. Then can get titanium hydride powder of hydrogen content of 3.8% ± 0.2%. We have advanced production equipment, mature production technology, strict production process control, so that we can put an end to the air flow backward situation during hydrogenation process, to ensure the safety of the production process.
And then under the protection of the protected gas under the ball mill, which can effectively avoid the contamination of titanium powder and can also avoid the occurrence of titanium hydride spontaneous combustion to ensure the safety of production. Through the ball mill, we can get different sizes of hydrogenated titanium.
The hydrogenated titanium is charged into the furnace for dehydrogenation. Under vacuum condition, the temperature is increased to above 680 ℃. At this time, the hydrogenated titanium is rapidly decomposed into hydrogen, and the whole dehydrogenation process keep at a low degree of vacuum and lasting about 19 hours. Finally get excellent quality titanium powder. What we can do for temperature and furnace pressure control can effectively avoid the process of dehydrogenation into the phenomenon of sintering to ensure product quality.
|Type||Chemical Composition (wt%)|
|O Max||H Max||N Max||Mg Max||Mn Max||C Max||Si Max||Fe Max||Cl Max||Particle Size
|HDTP-1||99.6||0.25||0.03||0.03||0.02||0.02||0.02||0.02||0.08||0.04||-60 to -100|
|HDTP-2||99.4||0.35||0.04||0.04||0.03||0.03||0.03||0.03||0.08||0.08||-60 to -100|