Electrode material for TiNiFe alloy vacuum consumable smelting and preparation thereof

Abstract

The invention discloses an electrode material for TiNiFe alloy vacuum consumable smelting and preparation thereof in the technical field of plate electrode materials. The electrode material comprisesmore than two sections of electrode plate materials, every two adjacent sections of electrode plate materials are spliced by adopting a high-low staggered mode, the electrode plate materials each comprise electrode plate material units with the same quantity, a high-purity titanium plate-high-purity iron plate-high-purity nickel plate composite plate material which is of a sandwich structure is adopted as each electrode plate material unit, and the electrode plate material units in every two adjacent sections of the electrode plate materials are spliced in a high-purity titanium plate-high-purity iron plate-high-purity nickel plate and high-purity nickel plate-high-purity iron plate-high-purity titanium plate mode aligning splicing mode. According to the electrode material for TiNiFe alloyvacuum consumable smelting, component batching is precise, the welding connection strength is high, and a foundation is laid for vacuum induction smelting of a TiNiFe alloy with the uniform components and the low impurity content; and the preparation method is simple and can be popularized to preparation of plate electrode materials for vacuum consumable smelting of other titanium alloys.

Description

technical field [0001] The invention belongs to the technical field of plate electrode materials, and in particular relates to an electrode material for TiNiFe alloy vacuum consumable smelting and its preparation. Background technique [0002] TiNiFe alloy is a shape memory alloy material with low phase transition temperature, excellent mechanical properties and memory recovery performance, and is often used to prepare pipe joints for aviation hydraulic pipelines. Since the phase transition temperature and memory recovery performance of the alloy are very sensitive to the uniformity of alloy composition and impurity content, the preparation of alloy materials with uniform composition and low impurity content is the basic material requirement for the production of high-performance aerospace pipe joints. At present, TiNiFe alloy ingots are prepared by vacuum self-consumption melting, which can obtain larger quality ingots and better meet the stability requirements of products....

AI Technical Summary

Problems solved by technology

TiNiFe alloy has high requirements on impurity content (oxygen, carbon, nitrogen, etc.), and the method of pressing electrode materials with sponge titanium mixture cannot meet the requirements of impurity content. Therefore, it is necessary to use high-purity titanium plates, high-purity nickel plates, and high-purity iron plates to prepare plate electrodes Material

It is very difficult to prepare plate electrode materials for vacuum consumable smelting. In addition, plate electrode materials need to be welded. The welding performance of TiNiFe alloy welding wire and high-purity titanium plates, high-purity nickel plates, and high-purity iron plates is poor. It is easy to fall off during the smelting process, resulting in smelting failure

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