The invention relates to the technical field of carbon sliders, in particular to a preparation method of a copper-based silicon oxynitride pantograph carbon slider material. Silicon oxynitride, silicon carbide, copper, nanometer carbon powder, special graphite powder and the like are added into raw material pitch coke and are blended with other materials in raw materials, the mechanical strength of a finished carbon contact strip can be supplemented, and thus the carbon contact strip is not prone to breaking and cracking during operation. A preparation technology comprises the steps that firstly, raw materials are ground, then compression moulding forming and a copper leaching technology are conducted, finally, sintering carbonizing treatment is conducted, and the density and strength of the carbon slider material can be improved. As for the carbon slider material, the volume density is less than or equal to 3.8 g/cm<3>, the flexural strength is greater than or equal to 120, the compressive strength is greater than or equal to 240, the impact toughness is greater than or equal to 0.3 J/cm<2>, the electrical resistivity at 20 DEG C is less than or equal to 6 [mu]ohm.m, and the Rockwell hardness (HBS) is less than or equal to 100.
本发明涉及碳滑条技术领域,更具体而言,涉及一种铜基氮氧化硅受电弓碳滑条材料制备方法,通过在原料沥青焦中加入氮氧化硅、碳化硅、铜、纳米碳粉、特种石墨粉等,与原料中的其他材料相融合,可以补充成品碳滑板的机械强度,使其在运行中不易折断和破裂;其制备工艺是,首先对原料进行研磨,再通过模压成型、浸铜工艺、最后烧结炭化处理,可以增加碳滑条材料的密度和强度。其体积密度≤3.8g/cm、抗折强度≥120、抗压强度≥240、冲击韧性≥0.3J/cm、20℃电阻率≤6µΩ·m、洛氏硬度(HBS)≤100。
Preparation method of copper-based silicon oxynitride pantograph carbon slider material
一种铜基氮氧化硅受电弓碳滑条材料制备方法
2020-05-19
Patent
Elektronische Ressource
Chinesisch
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