Device for preparing magnesium alloy semi-solid slurry by gas stirring

Abstract

A device for preparing magnesium alloy semi-solid slurry by gas stirring comprises a heating insulating device, a stirring gas input device and a stirring device, wherein the heating insulating device accommodates a molten magnesium alloy and keeps temperature of the molten magnesium alloy, the stirring gas input device is connected with the stirring device and inputs stirring gas to the stirring device, and the stirring device is positioned above the heating insulating device and is extended into the heating insulating device. The device provided by the invention applies gas stirring in magnesium alloy semi-solid slurry preparation, and greatly improves the quality of the magnesium alloy semi-solid slurry through combination of actions of gas stirring, local chilling and week mechanical stirring. The device is compact and reasonable in structure, safe in use and convenient in operation; and the prepared magnesium alloy semi-solid slurry has good quality and low cost. The device can be used for efficient and rapid preparation of the magnesium alloy semi-solid slurry, especially suitable for magnesium alloy semi-solid rheological forming.

Description

technical field [0001] The invention relates to a metal semi-solid slurry preparation device, in particular to a gas stirring device specially used for preparing a semi-solid slurry for magnesium alloys, belonging to the technical field of metal materials and metallurgy. Background technique [0002] Metal semi-solid forming technology has many unique advantages compared with traditional forming methods, such as near-end net shape forming, long mold life, low energy consumption, heat treatment, etc., and is known as the most promising metal material processing technology in the 21st century one. According to different process methods, semi-solid forming technology is divided into two categories: rheological forming and thixoforming. The product quality of thixoforming technology is easy to control and has been applied in industry. However, this technology needs to reheat the semi-solid billet, resulting in long process and high cost. Rheological forming directly processes ...

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Problems solved by technology

These two types of methods have their own limitations: the stirring method has high energy consumption, low work efficiency, and is easy to cause oxidation inclusions; the quality of semi-solid slurry prepared by the non-stirring method is average, and it is difficult to prepare on a large scale

This pulping idea can be applied to semi-solid pulping of magnesium alloys, but there is no gas-stirred semi-solid pulping device dedicated to magnesium alloys.

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