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A platform for research: civil engineering, architecture and urbanism
Preparation method of carbon-copper fiber hybrid pantograph carbon slide plate composite material
The invention relates to the technical field of electric vehicle equipment preparation, in particular to a preparation method of a carbon-copper fiber hybrid pantograph carbon slide plate composite material. Comprising the following steps: step 1, preparing a carbon-copper fiber hybrid preform; 2, chemical vapor deposition is carried out; step 3, impregnating, carbonizing and densifying the asphalt; and 4, high-temperature heat treatment. According to the invention, the continuity of the three-dimensional network structure of copper and carbon is improved. And the overall consistency is improved, the interlayer bonding performance of the material is higher, and meanwhile, compared with needle-punched short fibers, the whole bundle of mixed fibers can better improve the conductivity of the material and reduce the resistivity. A plurality of penetrating holes are formed in the prefabricated body in the thickness direction, channels for cracking gas and asphalt to enter the material are provided for follow-up chemical vapor deposition and dipping carbonization respectively, and the densification efficiency of the prefabricated body in the follow-up technological process can be improved. The graphitization degree of a carbon matrix in the material is remarkably improved, and the conductivity of the material is further improved.
本发明涉及电力车辆设备制备技术领域，特别涉及一种碳‑铜纤维混编受电弓碳滑板复合材料的制备方法。包括步骤1：碳‑铜纤维混编预制体的制备；步骤2：化学气相沉积；步骤3：沥青浸渍碳化增密；步骤4：高温热处理。本发明提高了铜和碳的三维网络结构连续性。且使得整体一致性得到提高，材料的层间结合性能更高，同时整束混合纤维相较于针刺短纤维更能提高材料的导电性，降低电阻率。预制体在厚度方向上形成较多的贯穿性孔洞，为后续的化学气相沉积和浸渍碳化分别提供裂解气体和沥青进入材料内部的通道，有益于提高预制体在后续工艺过程的致密化效率。显著提高材料内部碳基体的石墨化度，进一步提升材料的导电性能。
Preparation method of carbon-copper fiber hybrid pantograph carbon slide plate composite material
The invention relates to the technical field of electric vehicle equipment preparation, in particular to a preparation method of a carbon-copper fiber hybrid pantograph carbon slide plate composite material. Comprising the following steps: step 1, preparing a carbon-copper fiber hybrid preform; 2, chemical vapor deposition is carried out; step 3, impregnating, carbonizing and densifying the asphalt; and 4, high-temperature heat treatment. According to the invention, the continuity of the three-dimensional network structure of copper and carbon is improved. And the overall consistency is improved, the interlayer bonding performance of the material is higher, and meanwhile, compared with needle-punched short fibers, the whole bundle of mixed fibers can better improve the conductivity of the material and reduce the resistivity. A plurality of penetrating holes are formed in the prefabricated body in the thickness direction, channels for cracking gas and asphalt to enter the material are provided for follow-up chemical vapor deposition and dipping carbonization respectively, and the densification efficiency of the prefabricated body in the follow-up technological process can be improved. The graphitization degree of a carbon matrix in the material is remarkably improved, and the conductivity of the material is further improved.
本发明涉及电力车辆设备制备技术领域，特别涉及一种碳‑铜纤维混编受电弓碳滑板复合材料的制备方法。包括步骤1：碳‑铜纤维混编预制体的制备；步骤2：化学气相沉积；步骤3：沥青浸渍碳化增密；步骤4：高温热处理。本发明提高了铜和碳的三维网络结构连续性。且使得整体一致性得到提高，材料的层间结合性能更高，同时整束混合纤维相较于针刺短纤维更能提高材料的导电性，降低电阻率。预制体在厚度方向上形成较多的贯穿性孔洞，为后续的化学气相沉积和浸渍碳化分别提供裂解气体和沥青进入材料内部的通道，有益于提高预制体在后续工艺过程的致密化效率。显著提高材料内部碳基体的石墨化度，进一步提升材料的导电性能。
Preparation method of carbon-copper fiber hybrid pantograph carbon slide plate composite material
一种碳-铜纤维混编受电弓碳滑板复合材料的制备方法
ZHU WENZHI (author) / HE LIUYANG (author)
2023-04-25
Patent
Electronic Resource
Chinese
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