Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production process of isostatic pressing special graphite
The present invention discloses an isostatic pressing special graphite production process, which comprises crushing, grinding, mixing kneading, screening, isostatic pressing molding, roasting, dipping and graphitizing, and the used raw materials comprise calcined coke, pitch coke and modified pitch. The modified asphalt powder is adopted as a binder, the calcined coke powder, the asphalt coke powder and the modified asphalt powder are simultaneously added into a kneading machine to be stirred and kneaded in the kneading process, the asphalt is gradually melted and uniformly permeates into the calcined coke and the asphalt coke powder along with the increase of the temperature, and part of the asphalt uniformly coats the surfaces of the calcined coke and the asphalt coke powder, so that the surface of the calcined coke and the surface of the asphalt coke powder are uniformly coated with the modified asphalt powder. Therefore, not only is an independent asphalt melting step omitted, but also asphalt distribution is more uniform, so that the finished product rate and physical and chemical performance indexes of products are improved.
本发明公开一种等静压特种石墨的生产工艺，包括破碎、磨粉、混捏、筛分、等静压成型、焙烧，浸渍和石墨化的工序，其中，所使用的原料包括煅后焦、沥青焦和改质沥青。通过采用改质沥青粉作为粘结剂，在混捏过程中将煅后焦粉、沥青焦粉及改质沥青粉同时加入混捏机中搅拌、捏合，随着温度的提升，沥青逐渐熔化，并均匀地渗透到煅后焦及沥青焦粉中，部分沥青均匀地包覆在煅后焦及沥青焦粉表面，这样不仅省略了单独的沥青熔化步骤，而且使沥青的分布更加均匀，从而提高了制品的成品率及理化性能指标。
Production process of isostatic pressing special graphite
The present invention discloses an isostatic pressing special graphite production process, which comprises crushing, grinding, mixing kneading, screening, isostatic pressing molding, roasting, dipping and graphitizing, and the used raw materials comprise calcined coke, pitch coke and modified pitch. The modified asphalt powder is adopted as a binder, the calcined coke powder, the asphalt coke powder and the modified asphalt powder are simultaneously added into a kneading machine to be stirred and kneaded in the kneading process, the asphalt is gradually melted and uniformly permeates into the calcined coke and the asphalt coke powder along with the increase of the temperature, and part of the asphalt uniformly coats the surfaces of the calcined coke and the asphalt coke powder, so that the surface of the calcined coke and the surface of the asphalt coke powder are uniformly coated with the modified asphalt powder. Therefore, not only is an independent asphalt melting step omitted, but also asphalt distribution is more uniform, so that the finished product rate and physical and chemical performance indexes of products are improved.
本发明公开一种等静压特种石墨的生产工艺，包括破碎、磨粉、混捏、筛分、等静压成型、焙烧，浸渍和石墨化的工序，其中，所使用的原料包括煅后焦、沥青焦和改质沥青。通过采用改质沥青粉作为粘结剂，在混捏过程中将煅后焦粉、沥青焦粉及改质沥青粉同时加入混捏机中搅拌、捏合，随着温度的提升，沥青逐渐熔化，并均匀地渗透到煅后焦及沥青焦粉中，部分沥青均匀地包覆在煅后焦及沥青焦粉表面，这样不仅省略了单独的沥青熔化步骤，而且使沥青的分布更加均匀，从而提高了制品的成品率及理化性能指标。
Production process of isostatic pressing special graphite
一种等静压特种石墨的生产工艺
LI FANG (Autor:in) / LIU YUMIN (Autor:in) / WANG TIEJUN (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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