Bottom cork pulling type vacuum induction melting and casting control device

Abstract

The invention discloses a bottom cork pulling type vacuum induction melting and casting control device. A cork pulling mechanism is mounted on a support; a casting mould is located below a choke plug; and the choke plug in the cork pulling mechanism is mounted in a casting hole of a crucible and is matched with a screw rod by a cork pulling rod. According to the bottom cork pulling type vacuum induction melting and casting control device, bottom injection type casting is adopted, and no electrodes and no crucible oblique rotation mechanisms are needed, so that the structural complexity of apparatuses and the complexity of melting and casting working procedures are reduced. Meanwhile, the cork pulling rod is not in contact with a melt, so that the contact time of the melt and the crucible is shortened and the contact area of the melt and the crucible is reduced, and the reaction speed of metal and the melt is reduced; and the casting position of the metal melt is accurately positioned in the lower part, so that no splashing and casting missing conditions occur.

Description

technical field [0001] The invention relates to a pouring control device for vacuum induction smelting, in particular to a bottom plug-type pouring control device for vacuum induction smelting which is easy to cause melt splashing, missing pouring and metal melt to react with a crucible. Background technique [0002] Induction melting is a common method of smelting and preparing metal materials. The alternating magnetic field generates Joule heat in the metal skin layer to heat and melt the metal. At the same time, the electromagnetic force plays a role in stirring the molten metal and promoting the uniform composition of the alloy. With the development of new materials and new processes, in the process of smelting and preparing some special materials, especially the vacuum smelting of special materials, it is necessary to optimize the pouring method and control the pouring process to achieve good melting and pouring effects, such as titanium alloys with high melting points ...

AI Technical Summary

Problems solved by technology

However, both of these two devices use the method of plugging inside the melt. When melting titanium alloys and other metals that easily react with refractory materials, the device increases the contact time and contact area between the melt and the crucible, which intensifies the reaction. Difficulty for later test analysis or use of castings

At the same time, both of these two methods use manual plugging, which is not conducive to the realization of vacuum melting

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