Device for preparing metal semi-solid slurry

Abstract

The invention discloses a device for preparing metal semi-solid slurry and belongs to the technical field of metal semi-solid machining. The device comprises a safety baffle, a rotary assembly, a machining assembly, a mounting base, a side board, an unloading opening, a feeding hopper, a motor, a mold locking device and a receiving assembly, and the whole movement process of the device is controlled by an electric control element. Reciprocated pressure provided by pistons on the two sides promotes the semi-solid slurry to be sheared repeatedly and acutely in the process of transferring among cavities, the grain refinement effect is greatly improved, all the slurry participate in transferring among the cavities as much as possible, and the slurry processing uniformity is ensured. The metalsemi-solid slurry prepared by the device is fine in grain size, uniform in distribution and small in gas content. Meanwhile, the preparing device is simple in structure, convenient to operate and control and especially suitable for preparation of various light alloy semi-solid slurry.

Description

technical field [0001] The invention discloses a preparation device for metal semi-solid slurry, which belongs to metal semi-solid processing equipment. Background technique [0002] Metal semi-solid forming technology is recognized as the most promising near-net forming technology for light alloys in the 21st century. Its purpose is to change the dendrite structure naturally formed in the metal liquid forming process to improve the comprehensive mechanical properties of metal parts . Metal semi-solid processing has two types of processes: thixoforming and rheoforming. However, due to three typical defects of thixoforming technology, such as high production cost, difficulty in forming complex parts, and difficult control of the production process, rheoforming Shape technology is increasingly favored by the industry. At present, the commonly used methods for preparing metal semi-solid rheological forming slurry mainly include mechanical stirring method, electromagnetic stir...

AI Technical Summary

Problems solved by technology

Metal semi-solid processing has two types of processes: thixoforming and rheoforming. However, due to three typical defects of thixoforming technology, such as high production cost, difficulty in forming complex parts, and difficult control of the production process, rheoforming Shape technology is increasingly favored by the industry

At present, the commonly used methods for preparing metal semi-solid rheological forming slurry mainly include mechanical stirring method, electromagnetic stirring method, double helix stirring method, vibration method, single roller rotation method, spray deposition method, inclined cooling plate method, rotating conveying method, etc. Tube method, turbulence effect method, liquid mixing method, etc., but because these processes are all open low-pressure processing methods, there are generally disadvantages such as insufficient slurry grains, uneven processing quality, and easy air entrainment.

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