Aluminium-titanium-horon rare earth fining agent, and its preparing method
Title：
Aluminium-titanium-horon rare earth fining agent, and its preparing method
Application Number：
 200610011786
Application Date：
 2006/04/25
Announcement Date：
 2006/10/25
Pub. Date：
Publication Number：
 1851010
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C22B 1/06
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Xu Qingyan, Chen Yajun, Huang Tianyou
Key Words：
 Aluminium-titanium-horon rare earth, fining agent, preparing method
Abstract：
 The invention relates to the thinning reagent having the aluminum, the boron and the lanthanide of the aluminum and the aluminum alloy, it belongs to the domain of the applied technique of the aluminum alloy. The said thinning reagent factors include the aluminum, the boron, the titanium and the lanthanide (mainly includes the lanthanum and the Ce), the said producing process is showed as follows: the pure aluminum ingot, the alloy ingot having the aluminum and the lanthanide, the potassium hexafluorotitanate and the potassium borofluoride are prepared according to the thinning reagent element confecting in advance the aluminum ingot and the aluminum lanthanide ingot are heated and melted in the intermediate frequency inducing stove, then several material are added the fusing body acts with the high temperature the temperature keeps even and the dregs is removed after the action then the fusing body is irrigated to the ingot or connecting cast and rolled to the line material. According to the said process condition, the high pure aluminum can be removed the pole crystal, the size of the crystal grain of the industry pure aluminum and all series of distortional aluminum alloy can be divided to under the 100um, the casting form crystal grain core can be reduced to under 2um firmly to all sorts of the aluminum used in the foil material the size of the crystal grain of the alloy of the aluminum and the silicon can be reduced to under 150-200um. At the same time, the intension, the molding ability and the tenacity of the industry pure aluminum and all sorts of the aluminum alloy can be improved highly.
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