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Preparation method of special graphite material
The invention relates to a preparation method of a special graphite material, which is characterized in that the most representative Jinzhou needle coke and Baosteel needle coke in petroleum series and coal series in domestic coke are selected as raw materials, medium-temperature modified pitch with high coking value and strong operability is selected as a binder, an enhancement treatment procedure after graphitization is added in the process flow, the formula is improved, other procedures are controlled and improved, raw materials are reasonably selected, and the procedure control pertinence is high. The special graphite material produced through the method is high in volume density, high in mechanical strength, low in thermal expansion coefficient, suitable for being used under the conditions of high temperature and sudden temperature change and capable of being widely applied to the technical fields of aerospace, ships, national defense weapons and the like.
本发明涉及一种特种石墨材料的制备方法，原料选择国产焦中石油系和煤系中最具有代表性的锦州针状焦和宝钢针状焦，粘结剂选用了结焦值高、操作性强的中温改质沥青，工艺流程上增加了石墨化后的增强处理工序，并对配方进行改进以及其他工序的控制改进，原料选择合理，工序控制针对性强，采用此方法生产的特种石墨材料高体积密度、高机械强度、低热膨胀系数，适用于高温及温度急变条件下使用，能广泛用于航空航天、船舶、国防兵器等技术领域。
Preparation method of special graphite material
The invention relates to a preparation method of a special graphite material, which is characterized in that the most representative Jinzhou needle coke and Baosteel needle coke in petroleum series and coal series in domestic coke are selected as raw materials, medium-temperature modified pitch with high coking value and strong operability is selected as a binder, an enhancement treatment procedure after graphitization is added in the process flow, the formula is improved, other procedures are controlled and improved, raw materials are reasonably selected, and the procedure control pertinence is high. The special graphite material produced through the method is high in volume density, high in mechanical strength, low in thermal expansion coefficient, suitable for being used under the conditions of high temperature and sudden temperature change and capable of being widely applied to the technical fields of aerospace, ships, national defense weapons and the like.
本发明涉及一种特种石墨材料的制备方法，原料选择国产焦中石油系和煤系中最具有代表性的锦州针状焦和宝钢针状焦，粘结剂选用了结焦值高、操作性强的中温改质沥青，工艺流程上增加了石墨化后的增强处理工序，并对配方进行改进以及其他工序的控制改进，原料选择合理，工序控制针对性强，采用此方法生产的特种石墨材料高体积密度、高机械强度、低热膨胀系数，适用于高温及温度急变条件下使用，能广泛用于航空航天、船舶、国防兵器等技术领域。
Preparation method of special graphite material
一种特种石墨材料的制备方法
JIA RU (author) / KONG FANJIE (author) / KANG JIAN (author) / YUAN CHENGLONG (author) / SHI YUGUANG (author)
2021-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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