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Modified silica fume and application thereof
The invention belongs to the technical field of micro-silicon powder processing, and particularly relates to modified micro-silicon powder and application thereof. The preparation method of the modified micro-silicon powder comprises the following steps: treating micro-silicon powder under a preheating condition to obtain preheated micro-silicon powder, treating the preheated micro-silicon powder under a high-temperature carbonization condition to obtain high-temperature carbonized micro-silicon powder, and cooling the high-temperature carbonized micro-silicon powder under a cooling treatment condition to obtain the modified micro-silicon powder. The resistivity of the modified micro-silicon powder can be increased by about 52.1% compared with that of unmodified micro-silicon powder, and when the modified micro-silicon powder serves as a furnace bottom material of a graphitization furnace, the situation of current leakage of the unmodified micro-silicon powder graphitization furnace can be effectively reduced, the situation of uneven temperature is improved, safety is improved, and the service life is prolonged.
本发明属于微硅粉加工技术领域，具体涉及一种改性微硅粉及其应用。该改性微硅粉的制备方法包括：将微硅粉在预热条件下处理得预热微硅粉，将预热微硅粉在高温炭化条件下处理得高温炭化微硅粉，将高温炭化微硅粉在冷却处理条件下冷却处理得改性微硅粉。该改性微硅粉电阻率较未改造的微硅粉可以提高约52.1％，将其作为石墨化炉的炉底材料可以有效减少未改性微硅粉石墨化炉电流泄露情况，改善温度不均匀状况，提高安全性和增加寿命。
Modified silica fume and application thereof
The invention belongs to the technical field of micro-silicon powder processing, and particularly relates to modified micro-silicon powder and application thereof. The preparation method of the modified micro-silicon powder comprises the following steps: treating micro-silicon powder under a preheating condition to obtain preheated micro-silicon powder, treating the preheated micro-silicon powder under a high-temperature carbonization condition to obtain high-temperature carbonized micro-silicon powder, and cooling the high-temperature carbonized micro-silicon powder under a cooling treatment condition to obtain the modified micro-silicon powder. The resistivity of the modified micro-silicon powder can be increased by about 52.1% compared with that of unmodified micro-silicon powder, and when the modified micro-silicon powder serves as a furnace bottom material of a graphitization furnace, the situation of current leakage of the unmodified micro-silicon powder graphitization furnace can be effectively reduced, the situation of uneven temperature is improved, safety is improved, and the service life is prolonged.
本发明属于微硅粉加工技术领域，具体涉及一种改性微硅粉及其应用。该改性微硅粉的制备方法包括：将微硅粉在预热条件下处理得预热微硅粉，将预热微硅粉在高温炭化条件下处理得高温炭化微硅粉，将高温炭化微硅粉在冷却处理条件下冷却处理得改性微硅粉。该改性微硅粉电阻率较未改造的微硅粉可以提高约52.1％，将其作为石墨化炉的炉底材料可以有效减少未改性微硅粉石墨化炉电流泄露情况，改善温度不均匀状况，提高安全性和增加寿命。
Modified silica fume and application thereof
一种改性微硅粉及其应用
YANG XIUGANG (author) / CHI CONG (author) / HUANG BINGQIAN (author) / LIAO CHENGCAI (author) / YANG XIUDONG (author) / HOU TIANQUAN (author) / WU HAO (author) / YANG SHUICHANG (author)
2024-10-11
Patent
Electronic Resource
Chinese
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