Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Graphite workpiece hot-pressing rapid forming method
The invention discloses a graphite workpiece hot-pressing rapid forming method which comprises the steps of powder mold filling and furnace charging sintering. Wherein the charging sintering specifically comprises the steps of heating and plasticizing, namely, quickly plasticizing graphite powder at a certain heating rate under a specific pressure condition, quickly forming, namely, heating and keeping the temperature for a period of time under the specific pressure condition to complete tight forming of a workpiece, and heating and carbonizing, namely, keeping the temperature for a certain time at a specific temperature to sufficiently carbonize the graphite workpiece; heating and graphitizing, namely keeping the temperature for a certain time under the conditions of specific pressure and temperature to graphitize the workpiece; compared with a traditional mould pressing circulation soaking and baking process, the temperature in a vacuum state is lower than that of a common process, isotropic uniformity is achieved, the sintering, carbonization and graphitization time is short due to different temperature rise heating modes, and the efficiency of the process is high due to the efficient continuity of the whole production; the prepared graphite workpiece is more uniform in material, higher in strength, better in compactness and more stable in performance.
本发明公开了一种石墨工件热压快速成型方法，包括粉料填模及装炉烧结步骤，其中装炉烧结具体包括升温塑化即在特定压力条件下以一定的升温速率使石墨粉料快速达到塑化、快速成型即在特定压力条件下升温并保温一段时间完成工件紧密成型、升温碳化即在特定温度下并保温一定时间使石墨工件充分碳化、升温石墨化即在特定压力及温度条件下保温一定时间使工件石墨化四个步骤；相对传统模压循环浸焙工艺，在真空状态下温度相对比普通工艺温度低且各项同性均匀，升温加热方式的不同使得烧结且碳化、石墨化时间短，整个生产的高效连贯性促使这种工艺的效率高，制备的石墨工件材质更均匀、强度更高、致密性更好、性能更稳定。
Graphite workpiece hot-pressing rapid forming method
The invention discloses a graphite workpiece hot-pressing rapid forming method which comprises the steps of powder mold filling and furnace charging sintering. Wherein the charging sintering specifically comprises the steps of heating and plasticizing, namely, quickly plasticizing graphite powder at a certain heating rate under a specific pressure condition, quickly forming, namely, heating and keeping the temperature for a period of time under the specific pressure condition to complete tight forming of a workpiece, and heating and carbonizing, namely, keeping the temperature for a certain time at a specific temperature to sufficiently carbonize the graphite workpiece; heating and graphitizing, namely keeping the temperature for a certain time under the conditions of specific pressure and temperature to graphitize the workpiece; compared with a traditional mould pressing circulation soaking and baking process, the temperature in a vacuum state is lower than that of a common process, isotropic uniformity is achieved, the sintering, carbonization and graphitization time is short due to different temperature rise heating modes, and the efficiency of the process is high due to the efficient continuity of the whole production; the prepared graphite workpiece is more uniform in material, higher in strength, better in compactness and more stable in performance.
本发明公开了一种石墨工件热压快速成型方法，包括粉料填模及装炉烧结步骤，其中装炉烧结具体包括升温塑化即在特定压力条件下以一定的升温速率使石墨粉料快速达到塑化、快速成型即在特定压力条件下升温并保温一段时间完成工件紧密成型、升温碳化即在特定温度下并保温一定时间使石墨工件充分碳化、升温石墨化即在特定压力及温度条件下保温一定时间使工件石墨化四个步骤；相对传统模压循环浸焙工艺，在真空状态下温度相对比普通工艺温度低且各项同性均匀，升温加热方式的不同使得烧结且碳化、石墨化时间短，整个生产的高效连贯性促使这种工艺的效率高，制备的石墨工件材质更均匀、强度更高、致密性更好、性能更稳定。
Graphite workpiece hot-pressing rapid forming method
一种石墨工件热压快速成型方法
YU HUANHUAN (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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