| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to materials for production of contact current collection devices, particularly for production of collector gear for railroad transport and urban electric transport, and to the technologies of its production. Material for contact current collection devices includes graphite, coke residue and coke with the following components ratio, % w/w: graphite - 30-70; coke - 20-60; coke residue - the rest. ^ EFFECT: increased wear resistance of products. ^ 10 cl, 1 ex, 1 tbl |
