Pt-Ag alloy is an excellent precious metal mechanical material of metal, due to its high tensile strength, low resistivity, high elasticity and good corrosion resistance, platinum silver wire and strip play an important role in aerospace and other fields. Due to the difficulty of melting and subsequent processing of Pt-Ag alloy, the micro-structure and properties of the material are affected. In this paper, Pt-Ag alloy ingot was successfully prepared by non-consumable vacuum arc furnace melting, which effectively improved the micro-structure and processing properties of Pt-Ag alloy ingot, this method avoids the problems of composition segregation, specific segregation, porosity and serious volatilization of silver. Through the research and analysis of Pt-Ag alloy ingot rolling process, wire drawing process and annealing process, the production process can be simplified and the properties of the filament can be improved. The preparation process of the ultra-fine Pt-Ag filament can be produced efficiently and the minimum diameter of the filament can reach 0.02 mm. |