Forming system based on semi-solid melt of low melting point alloy

Abstract

The invention discloses a forming system based on a low melting point alloy semi-solid melt, which includes a preparation device and a forming device. The preparation device includes a frame, and the frame is equipped with an alloy melting device, a melt injection device, and a melt stirring device. The alloy smelting device smelts the alloy to form a semi-solid melt, and the melt injection device includes a spray pipe, and the semi-solid melt is ejected from the spray pipe; the melt stirring device includes a stirring chamber; the forming device includes a molding die, and the inside of the molding die is There are a main cavity and a branch cavity, the main cavity and the branch cavity are connected, and the discharge port is connected to the main cavity. There are several cooling channels in the forming mold, and several cooling channels are distributed around the main cavity. The forming mold A plurality of heating channels are arranged along the circumference of the lumen of the branch pipe, and the heating channels are distributed around the lumen of the branch pipe. The invention has high degree of automation, and the composition of the semi-solid alloy is uniform, the roundness of crystal nuclei is good, and the forming effect of the semi-solid alloy is good.

Description

technical field [0001] The invention relates to the technical field of rheological forming, in particular to a forming system based on semi-solid melt of low melting point alloy. Background technique [0002] Semi-solid alloy is a kind of "soft matter" between liquid and solid. It can be transported like a solid when it is still, and can be continuously deformed like a fluid under the action of an external force. Its internal feature is that (near) spherical crystals are uniformly suspended in the liquid. in phase. [0003] Environmentally friendly low-melting point alloys can be used to prepare semi-solid metals, and low-melting point alloys can undergo liquid-solid phase transitions within 100°C. The existing low-melting point semi-solid alloys need to go through multiple processes in order to prepare the solid alloys into semi-solid alloys. The process is complicated and the degree of automation is low. Moreover, the existing semi-solid alloy preparation devices mostly u...

AI Technical Summary

Problems solved by technology

The existing low-melting point semi-solid alloys need to go through multiple processes in order to prepare the solid alloys into semi-solid alloys. The process is complicated and the degree of automation is low. Moreover, the existing semi-solid alloy preparation devices mostly use mechanical stirring, electromagnetic Stirring and ultrasonic stirring

However, the semi-solid alloy produced by mechanical stirring has disadvantages such as uneven composition and poor roundness of crystal nuclei, and the preparation device is not easy to clean

Electromagnetic stirring and ultrasonic stirring devices still have stirring dead zone, low utilization rate of alloy and high preparation cost

In addition, after the semi-solid alloy is prepared, it needs to be processed and formed, and the forming ability of the semi-solid alloy is far less than that of lead, so the application is very limited.

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