Permanent magnetic stirring device for semi-solid slurry preparation of metals

Abstract

The invention discloses a permanent magnetic stirring device for semi-solid slurry preparation of metals. The device comprises a rack, wherein a motor is fixed on the rack, a rotating shaft of the motor is connected with a rotating mechanism, the rotating mechanism comprises a support table, a magnet fixing frame and permanent magnets, the rotating shaft of the motor is connected with the supporttable, at least one layer of permanent magnet set is fixed on the magnet fixing frame, a magnet protecting cover is fixed at the upper part of the rack, a slurry preparation container is arranged in the magnet protecting cover, and at least one blocking body is arranged in the slurry preparation container. Through arrangement of the rotating system, the slurry preparation container and the blocking body, non-contact stirring of metal slurry is realized, the purpose of uniform dispersion of solid-liquid components in semi-solid slurry in the stirring process is achieved, and the device has theadvantages of being simple in structure, reasonable in design, remarkable in effect and low in preparation cost.

Description

technical field [0001] The invention relates to the technical field of metal semi-solid slurry preparation, in particular to a permanent magnetic stirring device for metal semi-solid slurry production. Background technique [0002] The performance of metal materials depends largely on its microstructure characteristics. Controlling the microstructure during the material preparation process is an important means to improve performance. In the traditional casting process, the primary phase grows in the form of dendrites. When the solid phase rate reaches about 20%, When it is formed, a continuous dendrite grid structure is formed, which prematurely causes the alloy to lose its macroscopic fluidity, resulting in a decrease in the performance of the casting. The semi-solid casting technology developed in the early 1970s has brought profound changes to the traditional casting method. The products produced by the semi-solid casting forming technology shrink during the solidificati...

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Problems solved by technology

During the use of this method, it is impossible to avoid the heavy solid particles in the slurry from being aggregated to the inner wall of the container by the rotating centrifugal force, so that the generated slurry is mixed unevenly, which seriously affects its practicability.

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