A low-oxygen CuTi 50 Master alloys and their preparation methods

By combining vacuum electron beam melting with segmented heat preservation and refining processes, the problem of high oxygen content in CuTi50 master alloys was solved, and high purity and compositional uniformity of CuTi50 master alloys were achieved, meeting the performance requirements of high-end fields.

CN122303658APending Publication Date: 2026-06-30SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
Filing Date
2026-04-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing methods for preparing CuTi50 master alloys suffer from high oxygen content and weak deoxidation effects, making it difficult to meet the low-oxygen requirements of high-end copper alloys.

Method used

Cu and Ti plates are assembled using an alternating sandwich structure and vacuum electron beam melting is performed. Combined with segmented heat preservation and refining processes, precise control of vacuum level and electron gun parameters is ensured. This includes preheating treatment and the use of graphite coating to achieve uniform melting and deep deoxidation.

Benefits of technology

A CuTi50 master alloy with high purity and low oxygen content was obtained, exhibiting good compositional uniformity and avoiding localized Ti enrichment or segregation, which significantly improved the electrical properties and purity of the alloy.

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Abstract

This invention discloses a low-oxygen CuTi 50 This invention relates to the field of copper alloy technology and its preparation method. It employs an alternating layered sandwich structure to assemble Cu and Ti plates, resulting in a large and regularly distributed interlayer contact area, achieving a macroscopically uniform arrangement of Cu and Ti. Vacuum electron beam melting and refining processes are used for melting and refining, enabling rapid intermelting and diffusion of Cu and Ti, effectively eliminating component segregation, ensuring a precise and stable overall Ti content of 50%, and demonstrating significant deoxidation effects. The final product is a high-purity, low-oxygen CuTi alloy. 50 Intermediate alloy, which solves the problem of preparing CuTi using the existing vacuum consumable arc melting process. 50 The high oxygen content and weak deoxidation effect of the intermediate alloy lead to a higher oxygen content in the resulting alloy.
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