COMPOSITE MATERIAL OF CONTACT PLATE ON COPPER BASIS AND METHOD OF ITS MANUFACTURING Russian patent published in 2009 - IPC B22F3/12 H01H1/25 C22C1/04 

FIELD: metallurgy.

SUBSTANCE: invention can be used for manufacturing of contact members of current collectors of electric motive power of railroads, municipal and industrial transport. Composite material contains components in a following ratio, wt %: graphite - 3.0-10.0, iron - 7.0-10.0, phosphorus - 0.1-0.5, sulphur - 0.1-0.8, age-hardened copper- the rest. Manufacturing method of composite material includes manufacturing of age-hardened copper, containing 0.3-4.5 wt % age-hardening additives, mixing of powder materials, compressing from them porous blank, heating of compressed blank, its compaction and cold hardening of the received material.

EFFECT: increasing of physical-mechanical and antifriction properties of material.

2 cl, 1 tbl, 1 ex