Electromagnetic stirring and vibration combined device for preparing semi-solid slurry of black metal

A semi-solid slurry, electromagnetic stirring technology, applied in stirring devices, lighting and heating equipment, furnaces, etc., can solve the problems of large quantitative error and unstable flow, and achieve convenient temperature control, small vibration power, and small error. Effect

Inactive Publication Date: 2011-05-18
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional method generally adopts the stopper rod type, which has the advantage of a relatively simple structure, but when pouring, the semi-solid slurry is discharged by gravity or pressure, and the flow rate is unstable, so the quantitative error is large, and there is still no good one. Solution

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  • Electromagnetic stirring and vibration combined device for preparing semi-solid slurry of black metal
  • Electromagnetic stirring and vibration combined device for preparing semi-solid slurry of black metal
  • Electromagnetic stirring and vibration combined device for preparing semi-solid slurry of black metal

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] Such as figure 1 , figure 2As shown, an electromagnetic stirring and vibration composite device for ferrous metal semi-solid slurry preparation is composed of three parts: melting furnace I, stirring chamber II, crystallizer IIIA or rheological conveyor IIIB, and melting furnace I is installed in the stirring chamber The upper part of II, but the two are separated independently. The purpose is to make only the stirring chamber II receive the exciting force during mechanical vibration, but the melting furnace I does not vibrate, so as to improve the working stability and life of the parts of the melting furnace I. The melting furnace The bottom of the melting crucible substrate 32 of I extends into the stirring crucible 10 of the stirring chamber II. When used for thixotropic slurry, the crystallizer IIIA is installed in the lower part of the stirring...

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Abstract

The invention relates to an electromagnetic stirring and vibration combined device for preparing semi-solid slurry of a black metal. The device comprises three main sections: a melting furnace, a stirring chamber, and a crystallizer or a rheologic conveyor, wherein the melting furnace is arranged at the upper part of the stirring chamber, and the crystallizer or the rheologic conveyor is arranged at the lower part of the stirring chamber. When molten metal is poured into the melting furnace, a medium-frequency induction heater is used for maintaining temperature and uniformly heating; when the temperature of the molten metal is within the liquidus temperature range, the molten metal is poured into a stirring crucible in a quantitative amount, and a non-dendritic fine equiaxial spherical or nearly spherical microstructure is obtained by electromagnetically stirring and mechanically vibrating the molten metal; and the prepared fine nearly spherical semi-solid slurry is poured into the crystallizer, then cooled and solidified into a blank, or the slurry is poured into the rheologic conveyor and then is rapidly conveyed to a forming mold for rheoforming. The device can be used for preparing semi-solid slurry of a black metal and nonferrous metal, which improves the efficiency and the quality for preparing metal semi-solid slurry and shortens the preparation time. The device is especially suitable for rheoforming.

Description

technical field [0001] The invention belongs to the technical field of metal semi-solid slurry preparation, in particular to an electromagnetic stirring and vibration composite device for ferrous metal semi-solid slurry preparation. Background technique [0002] Metal semi-solid forming is a new metal forming technology, which combines the advantages of casting and forging, and only requires a small number of processes to form more complex shapes and high-performance workpieces. Compared with traditional casting, this technology has lower forming temperature, significantly longer mold life, and can improve the precision and mechanical properties of the workpiece. Compared with traditional hot forging, semi-solid forming technology has low forming force, good fluidity, and can achieve near-net shape, especially only one process can form workpieces with more complex shapes. So far, this technology has been widely used in the field of low melting point non-ferrous metals, espe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D27/00B22D17/30B22D1/00
Inventor 赵升吨陶文琉张琦林文捷
Owner XI AN JIAOTONG UNIV
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