Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to preparation of a metal graphite material for electric contact, in particular to a method for producing a carbon graphite blank through extrusion forming and then impregnating the carbon graphite blank with copper alloy to form a copper graphite material. The method comprises the following steps: S1, preparing raw materials including needle coke, semi-reinforced carbon black, artificial graphite powder, silicon powder, medium-temperature pitch and the like; S2, conducting dry powder mixing and kneading, namely uniformly mixing the raw materials in S1 according to a certain proportion; S3, conducting asphalt bonding, namely uniformly mixing the raw materials mixed in the step S2 with medium-temperature molten asphalt according to a certain proportion; S4, conducting sheet rolling; S5, conducting stock column extrusion, namely carrying out compression molding on the stock paste obtained in the step S4 on a press machine, and then putting the molded stock paste into a constant-temperature box for heat preservation for extrusion; S6, conducting extruding, namely subjecting the material column obtained in the step S5 to extrusion forming on an extruding machine; S7, conducting roasting; S8, conducting metal immersion; and S9, conducting follow-up finish machining. Compared with the prior art, the method has the advantages of simplicity and convenience in operation, high production efficiency, lower cost, environment friendliness and the like, and can be used for preparing products with various shapes and specifications.
本发明涉及电接触用金属石墨材料的制备，特别提供了一种用挤压成型生产碳石墨毛坯再浸渍铜合金形成铜石墨材料的方法，包括如下步骤：S1、原料，针状焦，半补强炭黑，人造石墨粉，硅粉，中温沥青等；S2、干粉混捏，将S1中原料按一定比例混合均匀；S3、沥青粘接，将S2中混好原料与中温熔化沥青按一定比例混合均匀；S4、轧片；S5、打料柱，将S4得到的料糊在压力机上模压成型后，放到恒温箱中保温待挤压；S6、挤压，将S5得到的料柱在挤压机上挤压成型；S7、焙烧；S8、浸金属；S9、后续精加工。本发明与现有的技术相比，具有操作简便，生产效率高，成本较低、环境友好等优点，同时可制备各种形状规格产品。
The invention relates to preparation of a metal graphite material for electric contact, in particular to a method for producing a carbon graphite blank through extrusion forming and then impregnating the carbon graphite blank with copper alloy to form a copper graphite material. The method comprises the following steps: S1, preparing raw materials including needle coke, semi-reinforced carbon black, artificial graphite powder, silicon powder, medium-temperature pitch and the like; S2, conducting dry powder mixing and kneading, namely uniformly mixing the raw materials in S1 according to a certain proportion; S3, conducting asphalt bonding, namely uniformly mixing the raw materials mixed in the step S2 with medium-temperature molten asphalt according to a certain proportion; S4, conducting sheet rolling; S5, conducting stock column extrusion, namely carrying out compression molding on the stock paste obtained in the step S4 on a press machine, and then putting the molded stock paste into a constant-temperature box for heat preservation for extrusion; S6, conducting extruding, namely subjecting the material column obtained in the step S5 to extrusion forming on an extruding machine; S7, conducting roasting; S8, conducting metal immersion; and S9, conducting follow-up finish machining. Compared with the prior art, the method has the advantages of simplicity and convenience in operation, high production efficiency, lower cost, environment friendliness and the like, and can be used for preparing products with various shapes and specifications.
本发明涉及电接触用金属石墨材料的制备，特别提供了一种用挤压成型生产碳石墨毛坯再浸渍铜合金形成铜石墨材料的方法，包括如下步骤：S1、原料，针状焦，半补强炭黑，人造石墨粉，硅粉，中温沥青等；S2、干粉混捏，将S1中原料按一定比例混合均匀；S3、沥青粘接，将S2中混好原料与中温熔化沥青按一定比例混合均匀；S4、轧片；S5、打料柱，将S4得到的料糊在压力机上模压成型后，放到恒温箱中保温待挤压；S6、挤压，将S5得到的料柱在挤压机上挤压成型；S7、焙烧；S8、浸金属；S9、后续精加工。本发明与现有的技术相比，具有操作简便，生产效率高，成本较低、环境友好等优点，同时可制备各种形状规格产品。
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