Circulating refining device used for continuously preparing aluminum alloy semisolid slurry

Abstract

The invention provides a circulation refinement device for continuously preparing aluminum alloy semi-solid slurry, which includes a drive mechanism and a refinement mechanism, the refinement mechanism includes a rotor and a stator, the interior of the stator is hollow, the rotor is placed inside the stator, and the drive mechanism Drive the rotor to rotate inside the stator; the thinning part where the stator is immersed in the slurry to perform the thinning function is provided with a thinning cavity, the rotor in the thinning cavity is provided with blades, and the bottom of the stator is provided with a A suction port, and a jet hole is opened on the side wall of the stator in the thinning cavity. The invention utilizes the rotation of the rotor blades to form a negative pressure to suck the slurry into the thinning cavity of the stator for thinning, and inject the slurry from the jet hole so that the slurry returns to the crucible where the slurry is placed, and then from the suction The mouth is continuously inhaled, repeated circulation, and continuous refinement; thus, the refinement efficiency of suspended grains is higher, and the prepared slurry is accumulated at the bottom of the crucible due to the difference in specific gravity caused by temperature, which is convenient for continuous collection and transportation.

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 a

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