一种真空下引连铸高纯无氧铜线材的制备方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SIRUI ADVANCED COPPER ALLOY TECH (FUFENG) CO LTD
- Filing Date
- 2023-03-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-conductivity oxygen-free copper wires are prone to introducing impurities during non-vacuum smelting, resulting in high oxygen content, which affects conductivity and mechanical properties. Furthermore, the process is complex and it is difficult to control the uniformity and stability of the material.
The process employs vacuum casting, which includes vacuum melting, stepped heating, continuous casting, multi-pass drawing, and annealing. Combined with the use of grain refiners and conductive agents, it ensures the purity and uniformity of the material.
It achieves an oxygen content of less than 3 ppm, an electrical conductivity of over 100% IACS, uniform material composition, stable performance, simplified process flow, avoids the problem of coarse grains caused by forging, and improves the oxidation resistance and conductivity of the material.
Smart Images
Figure CN116206818B_ABST