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High-strength carbon graphite material with dimple structure and preparation method of high-strength carbon graphite material
The invention discloses a high-strength carbon-graphite material with a dimple structure and a preparation method of the high-strength carbon-graphite material. The preparation method comprises the following steps: accurately weighing 60-70 parts of coke powder with D50 of 6-16 microns and 20-40 parts of impregnated asphalt with the softening point of 60-125 DEG C; the preparation method comprises the following steps: putting coke powder into a pressurized kneading machine for dry mixing, melting impregnated asphalt, putting the molten impregnated asphalt into the pressurized kneading machine, carrying out normal-pressure kneading for 5-30 minutes, carrying out pressurized kneading for 10-30 minutes, closing the pressurized kneading for 5-20 minutes, putting the kneaded asphalt into a hot rolling mill, rolling for 3-4 times, standing for 5-10 hours, crushing, grinding and sieving to obtain pressed powder A; carrying out mould pressing, roasting, crushing and grinding on the pressed powder A, and sieving with a 100-200-mesh sieve to obtain modified coke powder; accurately weighing 30-40 parts of a binder, 60-70 parts of modified coke powder and 20-30 parts of a secondary aggregate, wherein the secondary aggregate is a mixture of calcined crushed crystalline flake graphite or carbon nano onion and crystalline flake graphite to prepare a carbon graphite material; the volume density and the mechanical property of the high-strength carbon graphite material with the dimple structure can be effectively improved, the production period is shortened, the production cost is reduced, and materials can be provided for multi-purpose graphite.
本发明公开了一种具有”韧窝”结构高强炭石墨材料及其制备方法，包括：准确称取D50为6~16μm的焦炭粉60~70份，软化点为60~125 ℃的浸渍沥青20~40份；将焦炭粉投入加压捏合机中干混，再将浸渍沥青熔化后投入加压捏合机中，常压混捏5~30 min后再加压混捏10~30 min，然后关闭加压混捏5~20 min，再投入热轧机中揉捻3~4次，静置5~10 h，经破碎磨粉和过筛得到压粉A；压粉A经模压、焙烧、破碎磨粉和过100~200目筛网得到改性焦粉；准确称取粘结剂30~40份、改性焦粉60~70份和次骨料20~30份，次骨料为焙烧碎和鳞片石墨或者碳纳米洋葱和鳞片石墨的混合物制得炭石墨材料。本发明能有效提高具有”韧窝”结构高强炭石墨材料的体积密度和力学性能，缩短生产周期，降低生产成本，还可为多种用途石墨提供选材。
High-strength carbon graphite material with dimple structure and preparation method of high-strength carbon graphite material
The invention discloses a high-strength carbon-graphite material with a dimple structure and a preparation method of the high-strength carbon-graphite material. The preparation method comprises the following steps: accurately weighing 60-70 parts of coke powder with D50 of 6-16 microns and 20-40 parts of impregnated asphalt with the softening point of 60-125 DEG C; the preparation method comprises the following steps: putting coke powder into a pressurized kneading machine for dry mixing, melting impregnated asphalt, putting the molten impregnated asphalt into the pressurized kneading machine, carrying out normal-pressure kneading for 5-30 minutes, carrying out pressurized kneading for 10-30 minutes, closing the pressurized kneading for 5-20 minutes, putting the kneaded asphalt into a hot rolling mill, rolling for 3-4 times, standing for 5-10 hours, crushing, grinding and sieving to obtain pressed powder A; carrying out mould pressing, roasting, crushing and grinding on the pressed powder A, and sieving with a 100-200-mesh sieve to obtain modified coke powder; accurately weighing 30-40 parts of a binder, 60-70 parts of modified coke powder and 20-30 parts of a secondary aggregate, wherein the secondary aggregate is a mixture of calcined crushed crystalline flake graphite or carbon nano onion and crystalline flake graphite to prepare a carbon graphite material; the volume density and the mechanical property of the high-strength carbon graphite material with the dimple structure can be effectively improved, the production period is shortened, the production cost is reduced, and materials can be provided for multi-purpose graphite.
本发明公开了一种具有”韧窝”结构高强炭石墨材料及其制备方法，包括：准确称取D50为6~16μm的焦炭粉60~70份，软化点为60~125 ℃的浸渍沥青20~40份；将焦炭粉投入加压捏合机中干混，再将浸渍沥青熔化后投入加压捏合机中，常压混捏5~30 min后再加压混捏10~30 min，然后关闭加压混捏5~20 min，再投入热轧机中揉捻3~4次，静置5~10 h，经破碎磨粉和过筛得到压粉A；压粉A经模压、焙烧、破碎磨粉和过100~200目筛网得到改性焦粉；准确称取粘结剂30~40份、改性焦粉60~70份和次骨料20~30份，次骨料为焙烧碎和鳞片石墨或者碳纳米洋葱和鳞片石墨的混合物制得炭石墨材料。本发明能有效提高具有”韧窝”结构高强炭石墨材料的体积密度和力学性能，缩短生产周期，降低生产成本，还可为多种用途石墨提供选材。
High-strength carbon graphite material with dimple structure and preparation method of high-strength carbon graphite material
一种具有”韧窝”结构高强炭石墨材料及其制备方法
TU CHUANJUN (author) / QIU XIAOLONG (author) / LIU YANLI (author)
2024-12-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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