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Production process of photovoltaic graphite crucible
The invention relates to a production process of a photovoltaic graphite crucible. The production process comprises the following steps: S1, providing pitch coke, petroleum coke and carbon black, and providing a moisture-proof material and pitch; s2, sequentially adding pitch coke, petroleum coke, carbon black and a moisture-proof material into a kneading machine, and mixing to obtain a mixed raw material; s3, obtaining a mixed material; s4, performing rolling treatment on the mixed material to obtain a thin sheet, and grinding the thin sheet to obtain powder; s5, a crucible mold is used for conducting compression molding treatment on the powder, and a parison is obtained; s6, roasting-dipping treatment is carried out, and a roasted blank is prepared; and S7, carrying out graphitization treatment on the roasted blank to obtain the graphite crucible. The roasting treatment is carried out by heating and cooling based on a 576-hour roasting temperature curve. And the resistivity of the graphite crucible is 12-13 [mu] omega m. The production process is high in pertinence, high in production specialization degree, high in production efficiency, high in product quality and suitable for large-scale production, and the produced graphite is good in application safety.
本发明涉及一种光伏用石墨坩埚的生产工艺。上述生产工艺包括如下步骤：S1提供沥青焦、石油焦和炭黑，提供防潮材料和沥青；S2依次将沥青焦、石油焦、炭黑以及防潮材料加入捏合机中进行混合，得到混合原料；S3得到混配料；S4所述混配料经轧制处理变成薄片，对所述薄片进行研磨，得到粉末；S5使用坩埚模具对所述粉末进行压模成型处理，得到型坯；S6焙烧‑浸渍处理，制得焙烧料坯；S7石墨化处理所述焙烧料坯后，制得石墨坩埚。焙烧处理基于576小时焙烧温度曲线进行升温降温。所述石墨坩埚的电阻率为12～13μΩm。本发明的生产工艺针对性强，生产专门化程度高，生产效率高和产品质量高，适用于大规模的生产，生产得到的石墨，应用的安全性好。
Production process of photovoltaic graphite crucible
The invention relates to a production process of a photovoltaic graphite crucible. The production process comprises the following steps: S1, providing pitch coke, petroleum coke and carbon black, and providing a moisture-proof material and pitch; s2, sequentially adding pitch coke, petroleum coke, carbon black and a moisture-proof material into a kneading machine, and mixing to obtain a mixed raw material; s3, obtaining a mixed material; s4, performing rolling treatment on the mixed material to obtain a thin sheet, and grinding the thin sheet to obtain powder; s5, a crucible mold is used for conducting compression molding treatment on the powder, and a parison is obtained; s6, roasting-dipping treatment is carried out, and a roasted blank is prepared; and S7, carrying out graphitization treatment on the roasted blank to obtain the graphite crucible. The roasting treatment is carried out by heating and cooling based on a 576-hour roasting temperature curve. And the resistivity of the graphite crucible is 12-13 [mu] omega m. The production process is high in pertinence, high in production specialization degree, high in production efficiency, high in product quality and suitable for large-scale production, and the produced graphite is good in application safety.
本发明涉及一种光伏用石墨坩埚的生产工艺。上述生产工艺包括如下步骤：S1提供沥青焦、石油焦和炭黑，提供防潮材料和沥青；S2依次将沥青焦、石油焦、炭黑以及防潮材料加入捏合机中进行混合，得到混合原料；S3得到混配料；S4所述混配料经轧制处理变成薄片，对所述薄片进行研磨，得到粉末；S5使用坩埚模具对所述粉末进行压模成型处理，得到型坯；S6焙烧‑浸渍处理，制得焙烧料坯；S7石墨化处理所述焙烧料坯后，制得石墨坩埚。焙烧处理基于576小时焙烧温度曲线进行升温降温。所述石墨坩埚的电阻率为12～13μΩm。本发明的生产工艺针对性强，生产专门化程度高，生产效率高和产品质量高，适用于大规模的生产，生产得到的石墨，应用的安全性好。
Production process of photovoltaic graphite crucible
一种光伏用石墨坩埚的生产工艺
LI YUEWU (author) / ZHAO JUNTONG (author) / ZHANG JIESHI (author) / YU ZHIGUO (author) / PANG CHUAN (author) / ZHAO XIANGMIN (author) / QIU SHIYAO (author) / GUO YONGTAO (author) / LI CHAOLIANG (author) / LI SAN (author)
2022-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Graphite crucible repairing material and graphite crucible repairing method
| European Patent Office | 2024
| Engineering Index Backfile | 1935