Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mixing and kneading method for preparing graphite product, preparation method of graphite product and graphite product
The invention relates to a kneading method for preparing a graphite product, a preparation method of the graphite product and the graphite product, and belongs to the technical field of graphite preparation. The coal pitch with different softening points is added into the needle coke fine powder at different mixing and kneading temperatures, specifically, the mixing and kneading temperatures are set to be a plurality of stages from high to low, and the coal pitch with the softening temperature from high to low is correspondingly added in each stage. Binder coal pitch with different softening points is added during mixing and kneading, when a green body is subjected to primary roasting, the temperatures of condensation polymerization of the coal pitch with different softening points are different, and generally, the temperature required by condensation polymerization of low-temperature coal pitch is lower than that of high-temperature coal pitch, so that condensation polymerization of a large amount of coal pitch at a certain temperature can be avoided; and the risk of graphite cracking is effectively reduced.
本发明涉及一种制备石墨制品的混捏方法、石墨制品制备方法及石墨制品，属于石墨制备技术领域。本发明针状焦细粉在不同混捏温度下加入不同软化点的煤沥青，具体的，本发明将混捏温度设置为由高到低的若干阶段，每个阶段对应加入软化温度由高到低的煤沥青。本发明混捏中加入了不同软化点的粘结剂煤沥青，在生坯一次焙烧时，不同软化点煤沥青发生缩聚反应的温度不同，一般低温煤沥青发生缩聚反应所需温度要低于高温煤沥青，这样可以避免在某一温度下有大量煤沥青发生缩聚反应，有效的降低了石墨开裂的风险。
Mixing and kneading method for preparing graphite product, preparation method of graphite product and graphite product
The invention relates to a kneading method for preparing a graphite product, a preparation method of the graphite product and the graphite product, and belongs to the technical field of graphite preparation. The coal pitch with different softening points is added into the needle coke fine powder at different mixing and kneading temperatures, specifically, the mixing and kneading temperatures are set to be a plurality of stages from high to low, and the coal pitch with the softening temperature from high to low is correspondingly added in each stage. Binder coal pitch with different softening points is added during mixing and kneading, when a green body is subjected to primary roasting, the temperatures of condensation polymerization of the coal pitch with different softening points are different, and generally, the temperature required by condensation polymerization of low-temperature coal pitch is lower than that of high-temperature coal pitch, so that condensation polymerization of a large amount of coal pitch at a certain temperature can be avoided; and the risk of graphite cracking is effectively reduced.
本发明涉及一种制备石墨制品的混捏方法、石墨制品制备方法及石墨制品，属于石墨制备技术领域。本发明针状焦细粉在不同混捏温度下加入不同软化点的煤沥青，具体的，本发明将混捏温度设置为由高到低的若干阶段，每个阶段对应加入软化温度由高到低的煤沥青。本发明混捏中加入了不同软化点的粘结剂煤沥青，在生坯一次焙烧时，不同软化点煤沥青发生缩聚反应的温度不同，一般低温煤沥青发生缩聚反应所需温度要低于高温煤沥青，这样可以避免在某一温度下有大量煤沥青发生缩聚反应，有效的降低了石墨开裂的风险。
Mixing and kneading method for preparing graphite product, preparation method of graphite product and graphite product
制备石墨制品的混捏方法、石墨制品制备方法及石墨制品
LI XIAOXIANG (Autor:in) / PEI XIAODONG (Autor:in) / WANG WEI (Autor:in) / LI TAO (Autor:in) / SHEN BAOJIN (Autor:in) / LI QINGBO (Autor:in)
22.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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