METHOD OF PRODUCTION OF COPPER-CHROMIUM PSEUDO-ALLOY WITH DISPERSED STRUCTURE Russian patent published in 2009 - IPC C22C1/04 B22F3/12 C22C9/00 

Abstract RU 2344189 C2

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

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RU 2 344 189 C2

Authors

Antsiferov Vladimir Nikitovich

Smetkin Andrej Alekseevich

Pimenova Natalija Valentinovna

Dates

2009-01-20Published

2006-07-27Filed