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Manufacturing method of ultra-thick artificial graphite film
The invention discloses a manufacturing method of an ultra-thick artificial graphite film. The manufacturing method comprises the following steps: step 1, preparing a PI film coiled material; step 2,roll loading; step 3, carrying out vacuum carbonization: firstly, feeding a boat into a carbonization furnace to be vacuumized; then, heating in sections; and finally, naturally cooling to room temperature; step 4, high-temperature graphitization: firstly, feeding a boat into a graphite furnace to be vacuumized; then, filling inert protective gas into the graphite furnace; then, heating the interior of the graphite furnace to 1800-2000 DEG C from the normal temperature, and performing heat preservation for 1-1.5 h; then, heating the interior of the graphite furnace from 1800 DEG C to 2000 DEGC to 2750 DEG C to 2850 DEG C, and performing heat preservation for 30 min to 50 min; and finally, naturally cooling to room temperature; step 5, calendering. Aiming at the problems that the single-layer thickness of the existing artificial graphite film cannot meet the requirements, the bending resistance and the heat conduction performance are poor, the quality is poor and the like, the invention has the advantages that the single-layer thickness, the bending resistance and the heat conduction performance of the artificial graphite film are improved, the quality of the artificial graphite film is improved and the like.
本发明公开了一种超厚人工石墨膜的制造方法，包括以下步骤：步骤一：PI膜卷材的制备；步骤二：装卷；步骤三：真空碳化；首先将舟皿送入碳化炉内抽真空；接着，分段升温；最后，自然冷却至室温；步骤四：高温石墨化；首先，将舟皿送入石墨炉的内部抽真空；接着，向石墨炉的内部填充惰性保护气体；接着，将石墨炉的内部由常温升至1800～2000℃并保温1～1.5h；接着，将石墨炉的内部由1800～2000℃升至2750～2850℃并保温30～50min；最后，自然冷却至室温；步骤五：压延。本发明针对现有人工石墨膜的单层厚度达不到要求，耐弯折和导热性能差，质量差等问题进行改进，本发明具有提高人工石墨膜单层厚度、耐弯折性能和导热性能，提升人工石墨膜的质量等优点。
Manufacturing method of ultra-thick artificial graphite film
The invention discloses a manufacturing method of an ultra-thick artificial graphite film. The manufacturing method comprises the following steps: step 1, preparing a PI film coiled material; step 2,roll loading; step 3, carrying out vacuum carbonization: firstly, feeding a boat into a carbonization furnace to be vacuumized; then, heating in sections; and finally, naturally cooling to room temperature; step 4, high-temperature graphitization: firstly, feeding a boat into a graphite furnace to be vacuumized; then, filling inert protective gas into the graphite furnace; then, heating the interior of the graphite furnace to 1800-2000 DEG C from the normal temperature, and performing heat preservation for 1-1.5 h; then, heating the interior of the graphite furnace from 1800 DEG C to 2000 DEGC to 2750 DEG C to 2850 DEG C, and performing heat preservation for 30 min to 50 min; and finally, naturally cooling to room temperature; step 5, calendering. Aiming at the problems that the single-layer thickness of the existing artificial graphite film cannot meet the requirements, the bending resistance and the heat conduction performance are poor, the quality is poor and the like, the invention has the advantages that the single-layer thickness, the bending resistance and the heat conduction performance of the artificial graphite film are improved, the quality of the artificial graphite film is improved and the like.
本发明公开了一种超厚人工石墨膜的制造方法，包括以下步骤：步骤一：PI膜卷材的制备；步骤二：装卷；步骤三：真空碳化；首先将舟皿送入碳化炉内抽真空；接着，分段升温；最后，自然冷却至室温；步骤四：高温石墨化；首先，将舟皿送入石墨炉的内部抽真空；接着，向石墨炉的内部填充惰性保护气体；接着，将石墨炉的内部由常温升至1800～2000℃并保温1～1.5h；接着，将石墨炉的内部由1800～2000℃升至2750～2850℃并保温30～50min；最后，自然冷却至室温；步骤五：压延。本发明针对现有人工石墨膜的单层厚度达不到要求，耐弯折和导热性能差，质量差等问题进行改进，本发明具有提高人工石墨膜单层厚度、耐弯折性能和导热性能，提升人工石墨膜的质量等优点。
Manufacturing method of ultra-thick artificial graphite film
一种超厚人工石墨膜的制造方法
ZHU XIANLEI (author) / GE ZHIYUAN (author) / WANG XING (author)
2020-08-18
Patent
Electronic Resource
Chinese
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