| 摘要 |
FIELD: electricity.SUBSTANCE: method involves mixing graphite particles clad with niobium carbide or chrome carbide and copper or copper allow powder at the following component ratio, wt %: graphite particles 5-20, chrome or niobium carbide 5-20, copper or copper alloy takes up the rest, with graphite to carbide ratio comprising 0.9-1.1, forming a blanc part out of the mix by pressure compression to density of at least 70% of theoretical value, and further blanc part caking by electric current pulses of 100-300 A/mmdensity with simultaneous uniaxial squeezing of the material.EFFECT: simple and cheap technology of material production for break and arc-quenching contacts with improved copper solderability.5 cl, 1 tbl, 1 ex |
