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Preparation method of high-density carbon-graphite composite material
The invention discloses a preparation method of a high-density carbon-graphite composite material, which comprises the following steps: S1, preparing raw materials for pretreatment: thermally mixing the raw materials petroleum coke, pitch coke, microcrystalline graphite and crystalline flake graphite at 130-150 DEG C for 1-2 hours to obtain mixed powder; s2, after modified coal pitch is added into the mixed powder obtained in the step S1, mixing and kneading are conducted; s3, after mixing and kneading in the step S2 for 0.5 h, adding sulfur, and continuously mixing and kneading at the temperature of 160-200 DEG C for 1-2 h; s4, after mixing and kneading are completed, flaking is conducted 2-3 times, the thickness of flakes is smaller than or equal to 3.0 mm, and crushing and grinding are conducted after cooling; s5, the powder obtained in the step S4 is sieved, and then isostatic pressing one-time forming is carried out; and S6, roasting the material formed in the step S5 at a time. The prepared carbon-graphite composite material has the advantages of high density, high strength, low resistivity, good stability and the like.
本发明公开了一种高密度碳石墨复合材料的制备方法，包括以下步骤：S1、准备原料预处理，将原材料石油焦、沥青焦、微晶石墨、鳞片石墨在130℃‑150℃的温度下热混1h‑2h得到混合粉料；S2、在步骤S1中得到的混合粉料中添加改质煤沥青后，进行混捏；S3、在步骤S2混捏0.5h后，添加硫磺，并在160℃‑200℃的温度下继续混捏1h‑2h；S4、混捏完成后，进行轧片2‑3次，片厚≤3.0mm，待冷却后再进行破碎、磨粉；S5、将步骤S4中得到的粉料过筛，然后进行等静压一次成型；S6、对步骤S5中一次成型的材料进行焙烧。本发明制备出的碳石墨复合材料具有密度高、强度高、电阻率低以及良好稳定性等优点。
Preparation method of high-density carbon-graphite composite material
The invention discloses a preparation method of a high-density carbon-graphite composite material, which comprises the following steps: S1, preparing raw materials for pretreatment: thermally mixing the raw materials petroleum coke, pitch coke, microcrystalline graphite and crystalline flake graphite at 130-150 DEG C for 1-2 hours to obtain mixed powder; s2, after modified coal pitch is added into the mixed powder obtained in the step S1, mixing and kneading are conducted; s3, after mixing and kneading in the step S2 for 0.5 h, adding sulfur, and continuously mixing and kneading at the temperature of 160-200 DEG C for 1-2 h; s4, after mixing and kneading are completed, flaking is conducted 2-3 times, the thickness of flakes is smaller than or equal to 3.0 mm, and crushing and grinding are conducted after cooling; s5, the powder obtained in the step S4 is sieved, and then isostatic pressing one-time forming is carried out; and S6, roasting the material formed in the step S5 at a time. The prepared carbon-graphite composite material has the advantages of high density, high strength, low resistivity, good stability and the like.
本发明公开了一种高密度碳石墨复合材料的制备方法，包括以下步骤：S1、准备原料预处理，将原材料石油焦、沥青焦、微晶石墨、鳞片石墨在130℃‑150℃的温度下热混1h‑2h得到混合粉料；S2、在步骤S1中得到的混合粉料中添加改质煤沥青后，进行混捏；S3、在步骤S2混捏0.5h后，添加硫磺，并在160℃‑200℃的温度下继续混捏1h‑2h；S4、混捏完成后，进行轧片2‑3次，片厚≤3.0mm，待冷却后再进行破碎、磨粉；S5、将步骤S4中得到的粉料过筛，然后进行等静压一次成型；S6、对步骤S5中一次成型的材料进行焙烧。本发明制备出的碳石墨复合材料具有密度高、强度高、电阻率低以及良好稳定性等优点。
Preparation method of high-density carbon-graphite composite material
一种高密度碳石墨复合材料的制备方法
SHEN ZHILIN (author) / HE YU (author) / XIA SHANGNENG (author) / SHEN XIN (author)
2022-11-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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