Ag-Cu-C多芯电接触材料复合工艺研究

Investigation of Composite Process of Ag-Cu-C Contact Material with Multimillion-fibres

用多次挤压-拉伸方法研究了Ag-Cu-C多芯复合材料的加工工艺。试验表明,随着挤压次数增加,挤压系数升高,材料的室温抗拉强度及延伸率下降,电阻率升高。用该工艺制出了横截面含有1067857根Ag,Cu,C,其间相互隔开并呈均匀分布的纤维状的复合丝。

The process to manufacture composite material Ag-Cu-C with multimillion-fibrous structure has been investigated by indirect reapated extrusion-drawing method. The results show that, with increasing the number of extrusion, the extrusion coefficient and specific resistance increase, but ultimate tensile strength and elongation at room temperature decrease. A composite wire, which consists of 1067857 homogeneous distributed fibres of Ag, Cu and C, arranged at intervals has been prepared.