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Preparation method of high-strength carbon-carbon sagger for graphite negative electrode
The invention discloses a preparation method of a high-strength carbon-carbon sagger for a graphite negative electrode, which comprises the following steps of: cutting and crushing carbon fibers into fiber powder, mixing the fiber powder with a resin infusion agent, and sequentially carrying out mould pressing preforming, isostatic pressing, primary carbonization, impregnation, secondary carbonization, finish machining and two times of vapor deposition to obtain the high-strength carbon-carbon sagger. By changing raw materials into carbon fibers, compared with a long carbon fiber preform, the preparation process is reduced, the cost advantage is obvious, isostatic pressing is carried out on a preformed semi-finished product, the density of the sagger is increased, the internal mechanical isotropy is improved, the strength performance of the sagger is improved, and through two-stage vapor deposition, the surface density is greatly improved, and the strength performance of the sagger is improved. The anti-oxidation performance of the sagger is enhanced, the whole process is simple, and batch production is easy.
本发明公开一种石墨负极用高强度碳碳匣钵的制备方法，将碳纤维通过裁剪，再粉碎成纤维粉，纤维粉与树脂浸剂混合后，依次经模压预成型、等静压、一次碳化、浸渍、二次碳化、精加工以及两次气相沉积后，制得高强度碳碳匣钵。通过将原料改为碳纤维，相比长碳纤维预制体，减少了制备工序，有明显的成本优势，再配合对预成型半成品进行等静压，增加了匣钵的密度且内部力学各向同性提高，提高了匣钵的强度性能，以及，通过两次阶段气相沉积，面密度大大提高，增强了匣钵的防氧化性能，整体工艺简单，易于批量化生产。
Preparation method of high-strength carbon-carbon sagger for graphite negative electrode
The invention discloses a preparation method of a high-strength carbon-carbon sagger for a graphite negative electrode, which comprises the following steps of: cutting and crushing carbon fibers into fiber powder, mixing the fiber powder with a resin infusion agent, and sequentially carrying out mould pressing preforming, isostatic pressing, primary carbonization, impregnation, secondary carbonization, finish machining and two times of vapor deposition to obtain the high-strength carbon-carbon sagger. By changing raw materials into carbon fibers, compared with a long carbon fiber preform, the preparation process is reduced, the cost advantage is obvious, isostatic pressing is carried out on a preformed semi-finished product, the density of the sagger is increased, the internal mechanical isotropy is improved, the strength performance of the sagger is improved, and through two-stage vapor deposition, the surface density is greatly improved, and the strength performance of the sagger is improved. The anti-oxidation performance of the sagger is enhanced, the whole process is simple, and batch production is easy.
本发明公开一种石墨负极用高强度碳碳匣钵的制备方法，将碳纤维通过裁剪，再粉碎成纤维粉，纤维粉与树脂浸剂混合后，依次经模压预成型、等静压、一次碳化、浸渍、二次碳化、精加工以及两次气相沉积后，制得高强度碳碳匣钵。通过将原料改为碳纤维，相比长碳纤维预制体，减少了制备工序，有明显的成本优势，再配合对预成型半成品进行等静压，增加了匣钵的密度且内部力学各向同性提高，提高了匣钵的强度性能，以及，通过两次阶段气相沉积，面密度大大提高，增强了匣钵的防氧化性能，整体工艺简单，易于批量化生产。
Preparation method of high-strength carbon-carbon sagger for graphite negative electrode
石墨负极用高强度碳碳匣钵的制备方法
SONG HONGFANG (Autor:in) / BAI YU (Autor:in) / YU ZHENGBIN (Autor:in) / TENG KEJUN (Autor:in) / ZHAO DONGHUI (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
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DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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