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Aluminium alloy casting preparing method

A technology for aluminum alloy castings and preparation devices, which is applied in the field of aluminum alloy casting preparation, can solve problems such as low effective content and complicated process, and achieve the effects of increased strength, simple process, and good refinement effect

Active Publication Date: 2019-06-07
刘燕岭
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  • Abstract
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Problems solved by technology

KBF  4 and K 2 TiF 6 Salt contains B   The effective content of Ti and Ti is low, and the process is complicated

Method used

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  • Aluminium alloy casting preparing method

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0026] Such as figure ...

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Abstract

The invention discloses an aluminium alloy casting preparing method, and relates to the technical field of aluminum alloy preparing methods. According to the method, pure aluminum powder, pure titanium powder and borohydride titanium powder are mixed evenly to serve as a refiner, the refiner mixed powder is subjected to high-temperature preheating to enable borohydride titanium to be decomposed, through high-temperature, the self-propagating reaction in the refiner mixed powder forms fine TiAl3 and TiB2 particles, through high-temperature extrusion, a filamentous refiner containing hydrogen holes is formed, and then is cut into fine blocky refiners, finally, through the high-pressure spraying method, the fine blocky refiners are sprayed to aluminum alloy melt, after the melt is solidified,the refining effect is achieved, and residual hydrogen in the aluminum alloy melt is subjected to vacuum pumping so as to be removed. The method is simple in process, the prepared aluminum alloy is good in refining effect, and the aluminum alloy casting strength is improved.

Description

technical field [0001] The invention relates to the technical field of an aluminum alloy preparation device and method, in particular to a method for preparing an aluminum alloy casting. Background technique [0002] Al-Ti-B master alloy is one of the most important refining agents for refining the microstructure of aluminum alloys, and is widely used in the manufacturing fields of aluminum alloy casting and rolling all over the world. Aluminum-titanium-boron refiner is mainly TiAl 3 and TiB 2 Particles play the role of refinement, and its mechanism of action is not very clear at present, mainly because its shape, size and content affect the refinement effect. TiAl in aluminum titanium boron refining agent in international standard 3 and TiB 2 There is a definite limit to the size of the particles. The smaller the particles, the more obvious the refinement effect, and the better the mechanical properties of the aluminum alloy. [0003] Aluminum alloys are widely used i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/00C22C32/00
Inventor 王书杰孟静
Owner 刘燕岭
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