Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wet needling process for preparing carbon/carbon composite material
The invention discloses a wet needling process for preparing a carbon/carbon composite material, and relates to the technical field of preparation of carbon/carbon composite materials. The process comprises the following steps: dipping a carbon fiber web in slurry to obtain a carbon fiber web preform; laminating the carbon fiber web preform and carbon fiber cloth to obtain a slurry-containing carbon fiber fabric; needling the slurry-containing carbon fiber fabric to obtain a slurry-containing needled fabric; sequentially carrying out heating, curing and carbonization treatment on the slurry-containing needle-punched fabric to obtain a low-density carbon/carbon composite material blank; the low-density carbon/carbon composite material green body is repeatedly subjected to the treatment processes of dipping, heating, curing and carbonizing, and a high-density carbon/carbon composite material green body is obtained; performing high-temperature heat treatment on the high-density carbon/carbon composite material green body to obtain a carbon/carbon composite material; the slurry is an ethanol suspension of asphalt and graphite powder. According to the process method, the preparation period of the carbon/carbon composite material prepared by a needling method is shortened.
本发明公开了一种制备碳/碳复合材料的湿法针刺工艺，涉及碳/碳复合材料制备技术领域。工艺包括以下步骤：将碳纤维网胎浸渍于浆料中，得到碳纤维网胎预制体；将碳纤维网胎预制体与碳纤维布叠层，得到含浆料碳纤维织物；将含浆料碳纤维织物进行针刺，得到含浆料针刺织物；将含浆料针刺织物依次进行加热、固化、碳化处理，得到低密度碳/碳复合材料坯体；将低密度碳/碳复合材料坯体重复进行浸渍、加热、固化、碳化的处理过程，得到高密度碳/碳复合材料坯体；将高密度碳/碳复合材料坯体进行高温热处理，得到碳/碳复合材料；浆料为沥青与石墨粉的乙醇悬浮液。本发明工艺方法缩短了针刺法制备碳/碳复合材料的制备周期。
Wet needling process for preparing carbon/carbon composite material
The invention discloses a wet needling process for preparing a carbon/carbon composite material, and relates to the technical field of preparation of carbon/carbon composite materials. The process comprises the following steps: dipping a carbon fiber web in slurry to obtain a carbon fiber web preform; laminating the carbon fiber web preform and carbon fiber cloth to obtain a slurry-containing carbon fiber fabric; needling the slurry-containing carbon fiber fabric to obtain a slurry-containing needled fabric; sequentially carrying out heating, curing and carbonization treatment on the slurry-containing needle-punched fabric to obtain a low-density carbon/carbon composite material blank; the low-density carbon/carbon composite material green body is repeatedly subjected to the treatment processes of dipping, heating, curing and carbonizing, and a high-density carbon/carbon composite material green body is obtained; performing high-temperature heat treatment on the high-density carbon/carbon composite material green body to obtain a carbon/carbon composite material; the slurry is an ethanol suspension of asphalt and graphite powder. According to the process method, the preparation period of the carbon/carbon composite material prepared by a needling method is shortened.
本发明公开了一种制备碳/碳复合材料的湿法针刺工艺，涉及碳/碳复合材料制备技术领域。工艺包括以下步骤：将碳纤维网胎浸渍于浆料中，得到碳纤维网胎预制体；将碳纤维网胎预制体与碳纤维布叠层，得到含浆料碳纤维织物；将含浆料碳纤维织物进行针刺，得到含浆料针刺织物；将含浆料针刺织物依次进行加热、固化、碳化处理，得到低密度碳/碳复合材料坯体；将低密度碳/碳复合材料坯体重复进行浸渍、加热、固化、碳化的处理过程，得到高密度碳/碳复合材料坯体；将高密度碳/碳复合材料坯体进行高温热处理，得到碳/碳复合材料；浆料为沥青与石墨粉的乙醇悬浮液。本发明工艺方法缩短了针刺法制备碳/碳复合材料的制备周期。
Wet needling process for preparing carbon/carbon composite material
一种制备碳/碳复合材料的湿法针刺工艺
GUO YI (Autor:in) / CHEN SHENGXU (Autor:in) / LI KAIMING (Autor:in)
04.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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