Industrial preparation method of titanium alloy casting ingot with high niobium content

Abstract

The invention relates to an industrial preparation method of a titanium alloy casting ingot with high niobium content. The non-niobium included titanium alloy casting ingot with high niobium content and uniform chemical components can be prepared on an industrial scale by adopting the conventional vacuum consumable electric arc melting technology. The invention adopts the technical scheme that a consumable electrode of the titanium alloy casting ingot with high niobium content, which is suitably prepared by adopting the vacuum consumable electric arc melting technology, can be prepared; and the non-niobium included titanium alloy casting ingot with high niobium content and uniform chemical components can be prepared by adopting an industrial process similar to the conventional melting process for the titanium alloy casting ingot.

Description

1. Technical field: [0001] The invention relates to a preparation method of an alloy material, in particular to an industrial preparation method of a titanium alloy ingot with high niobium content. 2. Background technology: [0002] In the background technology, due to the high melting point and very active chemical properties of titanium and titanium alloys, liquid titanium and titanium alloys can react with almost all refractory materials during smelting. Therefore, almost all the industrial preparation of titanium and titanium alloy ingots adopts vacuum consumable arc melting technology. Vacuum consumable arc melting technology is a technology similar to zone melting, and the controllable range of its melting process parameters is small. Therefore, the key to preparing a qualified titanium alloy ingot is to prepare a consumable electrode in which the ingredients of various alloy elements are uniformly distributed along the longitudinal direction of the consumable electro...

AI Technical Summary

Problems solved by technology

Although this method can use the vacuum consumable arc melting technology to prepare basically qualified ingots of this type of titanium alloy with high niobium content, in actual operation, it is required to use measures far beyond the conventional smelting process system for smelting operations, which is very easy. cause equipment damage

In addition, the heat energy required for the melting of each part of the consumable electrode is very different, resulting in the sponge titanium electrode block around the melting part of the consumable electrode during the smelting process being too severe due to the preferential melting, and the phenomenon of "peeling" dripping will occur, and also It will inevitably lead to poor uniformity of the chemical composition of the ingot

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