METHOD OF PRODUCTION OF COPPER-CHROMIUM PSEUDO-ALLOY WITH DISPERSED STRUCTURE

METHOD OF PRODUCTION OF COPPER-CHROMIUM PSEUDO-ALLOY WITH DISPERSED STRUCTURE

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PIMENOVA NATALIJA VALENTINOVNA, SMETKIN ANDREJ ALEKSEEVICH, ANTSIFEROV VLADIMIR NIKITOVICH
Format: Patent
Sprache:eng ; rus
Schlagworte:
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung: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