Method of preparing biodegradable Zn—Mg—Bi zinc alloy

US12203152B2 · kind B2 · utility

Assignees

• XI'AN JIAOTONG UNIVERSITY · CN
• SHAANXI ZINC INDUSTRY CO., LTD. · CN

Inventors

• Shengqiang MA · Tuji, CN
• Ping Lv · Nanjing, CN
• Xuebin HE · Shangluo, CN
• Yimin GAO · Xi'an, CN
• Xudong CUI · Shangluo, CN
• Jiandong XING · Xi'an, CN
• Xiaoli MENG · Xi'an, CN
• Jiankang ZHANG · Zhejiang, CN

Key dates

• Filing date: Dec 22, 2023
• Grant date: Jan 21, 2025
• Expiry date: Dec 22, 2043

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C30/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of preparing biodegradable Zn—Mg—Bi zinc alloy includes: melting magnesium under an inert atmosphere to obtain a magnesium melt; adding bismuth particles to the magnesium melt followed by reaction under stirring and heat preservation treatment to obtain a Mg—Bi alloy melt; allowing the Mg—Bi alloy melt to stand in a furnace; subjecting the Mg—Bi alloy melt to refining, slagging-off, casting and demoulding to obtain Mg-50 wt. % Bi alloy ingot; melting zinc to obtain a zinc melt; adding the Mg-50 wt. % Bi alloy ingot and pure magnesium or pure bismuth followed by heating to a preset temperature, stirring and heat preservation to obtain a Zn—Mg—Bi alloy melt; allowing the Zn—Mg—Bi alloy melt to stand in a furnace followed by refining, slagging-off, casting and demoulding to obtain the biodegradable Zn—Mg—Bi zinc alloy.