Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a preparation method of a carbon-ceramic composite material for heat insulation of a reduction furnace, which comprises the following steps: alternately laminating carbon fiber cloth, a carbon fiber net tire and a polymeric membrane, and needling layer by layer to obtain a carbon fiber and polymeric membrane preform; performing carbonization treatment, primary purification treatment and carbon densification treatment on the carbon fiber and polymeric membrane preform in sequence to obtain a low-density carbon-carbon porous body; the low-density carbon-carbon porous body is subjected to secondary purification treatment and silicon carbide densification treatment, and the carbon-ceramic composite material is obtained; the carbon-ceramic composite material is obtained through three times of purification treatment. The carbon-ceramic composite material for heat insulation of the reduction furnace, which is prepared by the preparation method, is high in purity, low in heat conductivity and high in strength, and the power consumption for producing polycrystalline silicon is greatly reduced.
本发明公开了一种还原炉隔热用碳陶复合材料的制备方法，将碳纤维布、碳纤维网胎和高分子膜交替叠层并逐层针刺，得到碳纤维@高分子膜预制体；所述碳纤维@高分子膜预制体依次经碳化处理、一次纯化处理和增密碳处理，得到低密度碳碳多孔体；所述低密度碳碳多孔体经二次纯化处理和碳化硅增密处理，得到碳陶复合材料；所述碳陶复合材料经三次纯化处理得到。通过本发明的制备方法得到的还原炉隔热用碳陶复合材料纯度高、热导率低、强度高，大大节省了生产多晶硅的耗电量。
The invention discloses a preparation method of a carbon-ceramic composite material for heat insulation of a reduction furnace, which comprises the following steps: alternately laminating carbon fiber cloth, a carbon fiber net tire and a polymeric membrane, and needling layer by layer to obtain a carbon fiber and polymeric membrane preform; performing carbonization treatment, primary purification treatment and carbon densification treatment on the carbon fiber and polymeric membrane preform in sequence to obtain a low-density carbon-carbon porous body; the low-density carbon-carbon porous body is subjected to secondary purification treatment and silicon carbide densification treatment, and the carbon-ceramic composite material is obtained; the carbon-ceramic composite material is obtained through three times of purification treatment. The carbon-ceramic composite material for heat insulation of the reduction furnace, which is prepared by the preparation method, is high in purity, low in heat conductivity and high in strength, and the power consumption for producing polycrystalline silicon is greatly reduced.
本发明公开了一种还原炉隔热用碳陶复合材料的制备方法，将碳纤维布、碳纤维网胎和高分子膜交替叠层并逐层针刺，得到碳纤维@高分子膜预制体；所述碳纤维@高分子膜预制体依次经碳化处理、一次纯化处理和增密碳处理，得到低密度碳碳多孔体；所述低密度碳碳多孔体经二次纯化处理和碳化硅增密处理，得到碳陶复合材料；所述碳陶复合材料经三次纯化处理得到。通过本发明的制备方法得到的还原炉隔热用碳陶复合材料纯度高、热导率低、强度高，大大节省了生产多晶硅的耗电量。
Preparation method of carbon-ceramic composite material for heat insulation of reduction furnace
一种还原炉隔热用碳陶复合材料的制备方法
11.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Carbon ceramic fiber heat insulation composite material and preparation method thereof
| Europäisches Patentamt | 2022
Carbon-ceramic composite thermal insulation material and preparation method thereof
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2024