Preparation of aluminium titanium carbide intermediate alloy grain refiner in the ultrasonic field
Title：
Preparation of aluminium titanium carbide intermediate alloy grain refiner in the ultrasonic field
Application Number：
 200410103904
Application Date：
 2004/12/31
Announcement Date：
 2005/06/29
Pub. Date：
 2007/02/07
Publication Number：
 1632146
Announcement Number：
 1298463
Grant Date：
 2007-2-7
Granted Pub. Date：
 2007-2-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B22D 27/20, C22C 1/06, C22C 1/02, C22C 21/00
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Li Jianguo, Ye Wei, Li Li
Key Words：
 Preparation, aluminium, titanium, carbide, intermediate alloy grain refiner, ultrasonic field
Abstract：
 The present invention relates to component constitution, organizing features and process for producing a new type aluminum titanium carbon intermediate alloy grain refiner, and effects and processes thereof when it is used for grain refinement of aluminum and aluminum alloy. The present invention proposes constitutions of an aluminum titanium carbon intermediate alloy refiner prepared under the effect of an ultrasonic field, which is characterized in that except applications in aluminum silicon alloy, the essential component of the refiner only includes aluminum (Al), titanium (Ti) and carbon (C), without needing other additional constituent elements. Said process for preparing aluminum titanium carbon intermediate alloy proposed in accordance with the present invention is characterized in that raw materials such as pure aluminum ingot, potassium fluotitanate salt and graphitic carbon are prepared according to the intermediate alloy components designed in advance; heating and melting aluminum ingots in an intermediate-frequency induction furnace, then adding various raw materials therein; adding ultrasonics into the fused mass beginning reactions; after the ending of the reaction, elevating temperature, heat preservating, stewing and deslagging, casting it into ingots or continuously casting and rolling it into wire rods, then needed intermediate alloy refiners with various components and various shapes is obtained.
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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