СПОСОБ ПОЛУЧЕНИЯ ПСЕВДОСПЛАВА МЕДЬ-ХРОМ С ДИСПЕРСНОЙ СТРУКТУРОЙ

摘要

FIELD: metallurgy. ^ SUBSTANCE: invention refers to powder metallurgy, particularly to production of pseudo-alloys. It can be implemented as a material for fabricating contacts of vacuum switches of high accuracy and medium loaded. The method of producing copper-chromium pseudo-alloy with dispersed structure includes preparation of charge, compacting and sintering in vacuum at temperature 1000-1100°C. At preparing charge milling bodies in form metal balls with 8-10 mm diameter are used; ratio of weight of milling bodies and source powders corresponds to 15:1. Duration of charge mixing is 3-3.5 hrs at rate of mixer rotation 60 rev/min. ^ EFFECT: upgrading sintering of charge and producing pseudo-alloy with dispersed structure and high characteristics of hardness. ^ 1 dwg, 1 tbl