Circulating refining device used for continuously preparing aluminum alloy semisolid slurry

Abstract

The invention discloses a circulating refining device for continuously preparing the aluminum alloy semisolid slurry. The device comprises a driving mechanism and a refining mechanism, wherein the refining mechanism comprises a rotor and a stator, the interior of the stator is hollow, the rotor is arranged inside the stator, and the driving mechanism drives the rotor to rotate inside the stator; arefining part with the stator immersed in the slurry to perform the refining function is provided with a refining cavity, the portion, in the refining cavity, of the rotor is provided with blades, amaterial suction port communicating with the refining cavity is formed in the bottom of the stator, and jet holes are formed in the side wall of the portion, in the refining cavity, of the stator. According to the device, the rotor blades are rotated to form negative pressure, so that the slurry is sucked into the refining cavity with the stator to be refined and then is ejected out from the jet holes to return to a crucible for containing the slurry to be continuously sucked from the material suction port, the steps are repeatedly circulated, and the slurry is continuously refined, so that the refining efficiency for the suspended crystal grains is higher, and due to the specific gravity difference caused by the temperature, the prepared slurry is accumulated on the bottom of the cruciblethen can be conveniently and continuously collected and conveyed.

Description

technical field [0001] The invention belongs to the technical field of light alloy semi-solid forming. Background technique [0002] The semi-solid slurry is vigorously stirred during the solidification process of the metal to break the dendrites, and a solid-liquid mixed slurry that uniformly suspends some spherical solid phase particles is obtained. It has good fluidity and can be used in high pressure casting and squeeze casting. When filling, the gas is not easy to get involved, its forming temperature is low, the mold life is long, the deformation resistance is small, and the production efficiency is high; when forming, high pressure is applied to cause plastic deformation of the solidified metal, and the unsolidified metal continues to solidify under high pressure. The parts have less shrinkage cavity and shrinkage porosity, compact structure, higher mechanical properties than ordinary castings and close to forgings, can be heat treated, no riser feeding, and high met...

AI Technical Summary

Problems solved by technology

[0003] Although the castings produced by semi-solid forming technology have many advantages, and there are many slurry preparation methods, the continuous preparation, storage and transportation of low-cost and high-quality slurry has always been a problem, which seriously restricts the promotion and application of this technology.

In the process of slurry preparation in the existing method, the refining effect and conveying efficiency of the slurry cannot be guaranteed

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