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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11060166 B1

PDFFull Text
Date of Patent:
Jul. 13, 2021

Filed:

May. 21, 2018

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

Applicant:

Northeastern University, Shenyang, CN;

Inventors:

Zhi he Dou, Shenyang, CN;

Ting an Zhang, Shenyang, CN;

Yan Liu, Shenyang, CN;

Guo zhi Lv, Shenyang, CN;

Qiu yue Zhao, Shenyang, CN;

Li ping Niu, Shenyang, CN;

Da xue Fu, Shenyang, CN;

Wei guang Zhang, Shenyang, CN;

Assignee:

NORTHEASTERN UNIVERSITY, Shenyang, CN;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

Alexandra M Moore

Assistant Examiner:

Austin Pollock

Int. Cl.
CPC ...
C22B 34/12 (2006.01); C22C 1/06 (2006.01); C22C 1/02 (2006.01); C22C 14/00 (2006.01); C22B 7/04 (2006.01); C22B 9/10 (2006.01);
U.S. Cl.
CPC ...
C22B 34/1277 (2013.01); C22B 9/10 (2013.01); C22B 34/1295 (2013.01); C22C 1/02 (2013.01); C22C 1/06 (2013.01); C22C 14/00 (2013.01);
Abstract

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 VOpowder to CaO to KClObeing 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 CaF—CaO—TiO—VObased 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.

Find Patent Forward Citations

Dou, Zhi. (2021). Method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining (U.S. Patent No. 11060166). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11060166

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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