Method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining

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United States of America Patent

PATENT NO 11060166
APP PUB NO 20190241994A1
SERIAL NO

16320000

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Abstract

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The invention relates to a method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining, and belongs to the technical field of titanium-aluminum alloys. The method comprises the following steps of pre-treating raw materials, weighing the raw materials in the mass ratio of rutile or high-titanium slags or titanium dioxide to aluminum powder to V2O5 powder to CaO to KClO3 being 1.0:(0.60-0.24):(0.042-0.048):(0.12-0.26):(0.22-0.30), performing an aluminothermic self-propagating reaction in a gradient feeding manner to obtain high-temperature melt, performing a gradient reduction melting, performing heat insulation and separating the melt after the feeding is completed, then adding CaF2—CaO—TiO2—V2O5 based refining slags into the high-temperature melt, performing slag washing refining, and finally removing slags to obtain titanium alloys. This method has the advantages including short flow, low energy consumption, easy operation, easy control on Al and V contained in alloys, and so on.

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Patent Owner(s)

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NORTHEASTERN UNIVERSITYSHENYANG LIAONING 110819

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dou, Zhi he Shenyang, CN 3 2
Fu, Da xue Shenyang, CN 2 2
Liu, Yan Shenyang, CN 664 5733
Lv, Guo zhi Shenyang, CN 3 2
Niu, Li ping Shenyang, CN 2 2
Zhang, Ting an Shenyang, CN 4 2
Zhang, Wei guang Shenyang, CN 2 2
Zhao, Qiu yue Shenyang, CN 2 2

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