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Isostatic pressed graphite product and positive and negative pressure roasting method thereof
The invention relates to a positive and negative pressure roasting method of an isostatic pressed graphite product. The method comprises the following steps: loading a green body subjected to isostatic pressing molding into the center position of a steel container, filling the steel container with a filler, then putting the filled steel container into a roasting furnace, roasting, when the temperature in the furnace reaches 200-700 DEG C, starting and continuously pressurizing the interior of the steel container in the positive direction or the negative direction, keeping the pressure stable for 900-1100 hours after the positive direction or the negative direction pressurization is finished, finally taking out the roasted product in the roasting furnace, and naturally cooling the roasted product to room temperature to prepare the isostatic pressed graphite product. In the positive and negative pressure pressurization process, the pressure can be quickly and uniformly transmitted to the surface of the roasted product, the roasting yield of the isostatic pressed graphite product is improved, and the effects that the volume density of the product is increased, and the internal structure is compact are achieved.
本发明涉及一种等静压石墨制品的正负加压焙烧方法,包括以下步骤:将等静压成型后的坯体装入钢制容器的中心位置,并将填充物填充满所述钢制容器,然后将填充满的钢制容器置入焙烧炉内进行焙烧,当炉内的温度达到200‑700℃时,开始并持续地向所述钢制容器内部进行正向或负向连续加压,待正向或负向加压结束并保持压力稳定900‑1100小时,最后将焙烧炉内的焙烧制品取出后自然冷却至室温制成等静压石墨制品。本发明在正负压加压的过程中,可将压力快速地、均匀地传递至焙烧制品的表面,提高了等静压石墨制品的焙烧成品率,实现了制品体积密度增高,内部结构致密的效果。
Isostatic pressed graphite product and positive and negative pressure roasting method thereof
The invention relates to a positive and negative pressure roasting method of an isostatic pressed graphite product. The method comprises the following steps: loading a green body subjected to isostatic pressing molding into the center position of a steel container, filling the steel container with a filler, then putting the filled steel container into a roasting furnace, roasting, when the temperature in the furnace reaches 200-700 DEG C, starting and continuously pressurizing the interior of the steel container in the positive direction or the negative direction, keeping the pressure stable for 900-1100 hours after the positive direction or the negative direction pressurization is finished, finally taking out the roasted product in the roasting furnace, and naturally cooling the roasted product to room temperature to prepare the isostatic pressed graphite product. In the positive and negative pressure pressurization process, the pressure can be quickly and uniformly transmitted to the surface of the roasted product, the roasting yield of the isostatic pressed graphite product is improved, and the effects that the volume density of the product is increased, and the internal structure is compact are achieved.
本发明涉及一种等静压石墨制品的正负加压焙烧方法,包括以下步骤:将等静压成型后的坯体装入钢制容器的中心位置,并将填充物填充满所述钢制容器,然后将填充满的钢制容器置入焙烧炉内进行焙烧,当炉内的温度达到200‑700℃时,开始并持续地向所述钢制容器内部进行正向或负向连续加压,待正向或负向加压结束并保持压力稳定900‑1100小时,最后将焙烧炉内的焙烧制品取出后自然冷却至室温制成等静压石墨制品。本发明在正负压加压的过程中,可将压力快速地、均匀地传递至焙烧制品的表面,提高了等静压石墨制品的焙烧成品率,实现了制品体积密度增高,内部结构致密的效果。
Isostatic pressed graphite product and positive and negative pressure roasting method thereof
一种等静压石墨制品及其正负加压焙烧方法
DI ZHIYU (Autor:in) / YAO XIN (Autor:in) / WU CHENJIE (Autor:in)
31.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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