METHOD TO PRODUCE POWDERED COMPOSITE Cu-Cd/Nb FOR ELECTROCONTACT APPLICATION Russian patent published in 2014 - IPC C22C1/04 H01H1/25 C22C9/00 

Abstract RU 2516236 C1

FIELD: metallurgy.

SUBSTANCE: from copper and niobium powders they prepare charge, cold pressing and sintering is carried out. Cadmium is added to a stock by diffusion saturation by means of its soaking in atmosphere, containing cadmium vapours. The sintered stock is exposed to deep treatment with pressure, which is combined with hot extrusion and subsequent cold rolling or drawing. Afterwards additional pressing and annealing is carried out.

EFFECT: reduced transition resistance in a contact pair, increased electric erosion resistance, higher durable mechanical strength in modes of multi-cycle impact loads and resistance against welding.

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RU 2 516 236 C1

Authors

Ivanov Viktor Vladimirovich

Shao Venzhu

Aleshchenko Vadim Ivanovich

Shubin Aleksandr Anatol'Evich

Dates

2014-05-20Published

2013-01-10Filed