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Brief talk about the non through hydrogen's advantages(三)

Author: langfeng Time: 2017-07-12

Changsha Langfeng Metallic Material Co.,Ltd.

Brief talk about the non through hydrogen's advantages(三)

Third, since H2 react with oxygen in TiO2, Ta2O5, Nb2O5, etc. In production process, so that in the production of carbon black is much lower than with the non through hydrogen with carbon black.This resulted in a reduced C concentration in the material, and thus easier to N2 in the air in contact with Ti, Ta, Nb and react. Therefore, the amount nitrogen content of Compound carbides hydrogen is higher than non-through hydrogen high (compound carbides nitrogen can cause brittle). 
 
Fourth, as Ti, Ta, Nb carbides can dissolve the elemental metal itself, and the three metal is easy to react with hydride to generate hydride. One in particular, titanium metal absorb a large number of the hydrogen around 500 ℃, therefore  titanium carbide of hydrogen-carbonizing in the cooling process is very easy to generate titanium hydride. The titanium hydride hydrogen desorption temperature is at about 1300 ℃, which is the carbide phase formation and crystallization temperature region, there is no doubt have a significant impact on the carbide quality. 
 
Furthermore, the compound carbides production process in the traditional process itself can produce large amounts of CO gas that is both well protected gas, but also make the texture of loose material, so also through hydrogen carbide seem meaningless. For this reason, Compound carbide non-through hydrogen carbide is my company one of the  product quality important guarantee.
For more information please link: www.langfengmaterials.com,please contact us: sales@langfengmaterials.com
 
 
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