Production process of silver tin oxide by internal oxidation method

By improving the production process of silver tin oxide through vacuum continuous casting and wire drawing pickling, the problems of long processing cycle, low yield and unstable electrical properties in traditional processes have been solved, achieving efficient production and improved electrical properties of the material.

CN122168939APending Publication Date: 2026-06-09FOSHAN TONGBAO ELECTRICAL PRECISION ALLOY CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202610401210.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The traditional production process of silver tin oxide electrical contact materials has problems such as many processing steps, long cycle, low yield and unstable electrical performance. In particular, the migration of silver atoms during the high-temperature oxidation process leads to the formation of oxygen-deficient regions, which affects the electrical performance of the material.

Method used

Silver alloy wires are directly prepared by vacuum continuous casting. By combining wire drawing, shearing and pickling processes, the internal oxidation conditions and pressure are controlled to remove the silver layer, form a uniform oxide distribution, and improve the stability and electrical properties of the material.

Benefits of technology

By reducing processes, increasing yield, and shortening processing cycles, the uniformity of the material's internal structure and the stability of its electrical properties are significantly improved, reducing the risk of oxidation, avoiding the formation of oxygen-deficient zones, and enhancing the material's density and electrical properties.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses an internal oxidation method production process of silver tin oxide, which comprises the following steps of: performing vacuum continuous casting on raw materials to obtain a silver alloy wire; the silver alloy wire is subjected to wire drawing, annealing and shearing, and silver alloy wire particles are obtained; the silver alloy wire particles are subjected to internal oxidation, acid pickling and profiling, and silver alloy spindles are obtained; and the silver alloy ingot is subjected to extrusion sintering, annealing and wire drawing, and a silver tin oxide finished product is obtained. The method has the advantages of reducing processing procedures and improving the electrical performance of the silver tin oxide.
Need to check novelty before this filing date? Find Prior Art