Cu-W-Ni-C触头材料的研制

来源期刊：中南大学学报(自然科学版)2003年第1期

论文作者：谢健全 谢治华 黄和平 张贤其

文章页码：63 - 65

关键词：触头材料； Cu—W—Ni—C材料； Ag—ZnO₁₀材料； 性能

Key words：contact material； Cu- W-Ni-C contact material； Ag-ZnO₁₀ contact material； properties

摘    要：采用粉末冶金技术研制了Cu-W—Ni—C触头材料,并对Cu-W—Ni—C与Ag-ZnO₁₀触头材料的性能进行了对比和研究·研究结果表明:Cu-W—Ni—C触头材料的密度r≥8.87 g/cm³,硬度HB≥952 MPa,电阻率ρ≤2.45×10^-8Ω·m;在相对密度相同时,Cu-w—Ni—C触头材料的电阻率与Ag-ZnO10材料的电阻率接近,而硬度高于Ag—ZnO10材料的硬度;Cu—W—Ni—C触头材料在电力机车电器上可替代Ag-ZnO₁₀材料.

Abstract: Cu-W-Ni-C contact material was prepared by P/M technology. The conbined properties of the material, properties of Cu-W-Ni-C and Ag-ZnO₁₀ contact materials were compared and investigated. The results show that the material’s density r≥8. 87 g/cm³ , hardness HB≥952 MPa, electric resistivity ,ρ≤ 2. 45×10^-8Ω· m. The relative density and resistivity of Cu-W-Ni-C contact material are similar to the Ag-ZnO₁₀ contact material, but the hardness of Cu- W-Ni-C contact material is higher than that of Ag-ZnO₁₀ contact material. The results of the test and the turn-on and turn-off capability indicate that Cu-W-Ni-C contact material can replace Ag-ZnO₁₀ contact material in electric locomotive’s.