A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to preparation of a metal carbon-graphite composite material for electric contact, in particular to a method for producing a carbon-graphite blank through isostatic pressing and then impregnating the carbon-graphite blank with a copper alloy to form a copper-carbon-graphite composite material, which comprises the following steps: S1, preparing raw materials including cooked pitch coke powder, refined graphite powder, high-wear-resistance carbon black, oxide ceramic powder and the like; s2, dry powder mixing and kneading: uniformly mixing the raw materials in S1 according to a certain proportion; s3, asphalt bonding: uniformly mixing the raw materials mixed in the step S2 with the modified molten asphalt according to a certain proportion; s4, sheet rolling, wherein the raw materials in the S3 are pressed into sheets through a rolling mill; s5, grinding, namely grinding the powder obtained in the step S4 on a grinding machine; s6, molding: molding the material powder ground in the step S5 on a hydraulic cold isostatic pressing machine; s7, roasting: roasting again after dipping in asphalt; s8, metal immersion; and S9, subsequent processing and forming. Compared with the prior art, the method has the advantages of high production efficiency, excellent product performance, no environmental pollution and the like.
本发明涉及电接触用金属碳石墨复合材料的制备，特别提供了一种用等静压成型生产碳石墨毛坯再浸渍铜合金形成铜碳石墨复合材料的方法，包括如下步骤：S1、原料，熟沥青焦粉，精炼石墨粉，高耐磨炭黑，氧化物陶瓷粉等；S2、干粉混捏，将S1中原料按一定比例混匀；S3、沥青粘接，将S2中混好的原料与改质熔化沥青按一定比例混匀；S4、轧片，将S3中原料通过辊轧机压制成薄片；S5、磨粉，将S4得到的粉料在磨粉机上磨粉；S6、成型，将S5磨好的料粉在液压冷等静压机上成型；S7、焙烧，浸渍沥青后，再次焙烧；S8、浸金属；S9、后续加工成型。本发明与现有技术相比，具有生产效率高，产品性能优异，无环境污染等优点。
The invention relates to preparation of a metal carbon-graphite composite material for electric contact, in particular to a method for producing a carbon-graphite blank through isostatic pressing and then impregnating the carbon-graphite blank with a copper alloy to form a copper-carbon-graphite composite material, which comprises the following steps: S1, preparing raw materials including cooked pitch coke powder, refined graphite powder, high-wear-resistance carbon black, oxide ceramic powder and the like; s2, dry powder mixing and kneading: uniformly mixing the raw materials in S1 according to a certain proportion; s3, asphalt bonding: uniformly mixing the raw materials mixed in the step S2 with the modified molten asphalt according to a certain proportion; s4, sheet rolling, wherein the raw materials in the S3 are pressed into sheets through a rolling mill; s5, grinding, namely grinding the powder obtained in the step S4 on a grinding machine; s6, molding: molding the material powder ground in the step S5 on a hydraulic cold isostatic pressing machine; s7, roasting: roasting again after dipping in asphalt; s8, metal immersion; and S9, subsequent processing and forming. Compared with the prior art, the method has the advantages of high production efficiency, excellent product performance, no environmental pollution and the like.
本发明涉及电接触用金属碳石墨复合材料的制备，特别提供了一种用等静压成型生产碳石墨毛坯再浸渍铜合金形成铜碳石墨复合材料的方法，包括如下步骤：S1、原料，熟沥青焦粉，精炼石墨粉，高耐磨炭黑，氧化物陶瓷粉等；S2、干粉混捏，将S1中原料按一定比例混匀；S3、沥青粘接，将S2中混好的原料与改质熔化沥青按一定比例混匀；S4、轧片，将S3中原料通过辊轧机压制成薄片；S5、磨粉，将S4得到的粉料在磨粉机上磨粉；S6、成型，将S5磨好的料粉在液压冷等静压机上成型；S7、焙烧，浸渍沥青后，再次焙烧；S8、浸金属；S9、后续加工成型。本发明与现有技术相比，具有生产效率高，产品性能优异，无环境污染等优点。
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