Open AccessЭрозионные характеристики композитных материалов на основе меди в дуге переменной длины с поперечным продувом газа
Author(s) -
A. V. Budin,
M. É. Pinchuk,
N. K. Kurakina
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.18.46605.17389
Subject(s) - materials science , electrode , copper , metallurgy , electric arc , sintering , erosion , current (fluid) , liquid nitrogen , composite material , electrical engineering , chemistry , paleontology , organic chemistry , biology , engineering
We present experimental data on the erosion of electrodes made of copper-based pseudoalloys during contact breaking at current amplitudes up to 150 kA in nitrogen at a pressure of ~2 MPa with transverse gas blowing. The electric-erosion characteristics of copper–iron pseudoalloy CuFe (85/15%) electrodes obtained by laser layer melting, as well as CuFe (70/30%) and CuW (25/75%) pseudoalloy electrodes fabricated by traditional powder technology (sintering of pressed powder compacts) are reported. The specific erosion of electrodes in variable-length arc amounts to ~1 mg/C, which somewhat exceeds the value observed for a fixed-length arc discharge gap.