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Anti-oxidation and anti-leakage method for graphite crucible
The invention discloses an anti-oxidation and anti-leakage method for a graphite crucible, and belongs to the technical field of anti-oxidation and anti-leakage of graphite crucibles. Mixing titanium carbide or tungsten carbide powder with a sodium silicate solution, and stirring to obtain a first mixed melt; immersing a first graphite crucible of which the top is connected with a vacuumizing device into the first mixed solution; vacuumizing the inner cavity of the first graphite crucible through the vacuumizing device to obtain a treated second graphite crucible; the second graphite crucible is cleaned and dried; fully mixing the high-purity silicon sludge with a sodium silicate solution to obtain a second mixed solution; uniformly spraying the second mixed solution to the inner wall, the outer wall and the bottom of the cleaned and dried second graphite crucible to obtain a third graphite crucible; and putting the third graphite crucible into a vacuum furnace, vacuumizing, gradually heating to a molten state, preserving heat, and cooling. The graphite crucible treated through the method is not prone to liquid leakage in the smelting use process, and the service life is prolonged.
本发明公开了一种石墨坩埚抗氧化防渗漏的方法，属于石墨坩埚抗氧化防渗漏技术领域。将碳化钛或碳化钨的粉末和硅酸钠溶液混合，搅拌后得到第一混合熔液；将顶部连接抽真空装置的第一石墨坩埚浸入所述第一混合溶液中；通过所述抽真空装置对所述第一石墨坩埚内腔抽真空，得到处理好的第二石墨坩埚；将所述第二石墨坩埚进行清洗，烘干；将高纯硅泥与硅酸钠溶液充分混合，得到第二混合溶液；将第二混合溶液均匀喷涂到清洗烘干后的第二石墨坩埚内壁、外壁、底部，得到第三石墨坩埚；将所述第三石墨坩埚放入真空炉中，抽真空后，逐渐升温加热至熔融状态，保温、冷却。通过该方法处理后的石墨坩埚在熔炼使用过程中不容易漏液，且延长了使用寿命。
Anti-oxidation and anti-leakage method for graphite crucible
The invention discloses an anti-oxidation and anti-leakage method for a graphite crucible, and belongs to the technical field of anti-oxidation and anti-leakage of graphite crucibles. Mixing titanium carbide or tungsten carbide powder with a sodium silicate solution, and stirring to obtain a first mixed melt; immersing a first graphite crucible of which the top is connected with a vacuumizing device into the first mixed solution; vacuumizing the inner cavity of the first graphite crucible through the vacuumizing device to obtain a treated second graphite crucible; the second graphite crucible is cleaned and dried; fully mixing the high-purity silicon sludge with a sodium silicate solution to obtain a second mixed solution; uniformly spraying the second mixed solution to the inner wall, the outer wall and the bottom of the cleaned and dried second graphite crucible to obtain a third graphite crucible; and putting the third graphite crucible into a vacuum furnace, vacuumizing, gradually heating to a molten state, preserving heat, and cooling. The graphite crucible treated through the method is not prone to liquid leakage in the smelting use process, and the service life is prolonged.
本发明公开了一种石墨坩埚抗氧化防渗漏的方法，属于石墨坩埚抗氧化防渗漏技术领域。将碳化钛或碳化钨的粉末和硅酸钠溶液混合，搅拌后得到第一混合熔液；将顶部连接抽真空装置的第一石墨坩埚浸入所述第一混合溶液中；通过所述抽真空装置对所述第一石墨坩埚内腔抽真空，得到处理好的第二石墨坩埚；将所述第二石墨坩埚进行清洗，烘干；将高纯硅泥与硅酸钠溶液充分混合，得到第二混合溶液；将第二混合溶液均匀喷涂到清洗烘干后的第二石墨坩埚内壁、外壁、底部，得到第三石墨坩埚；将所述第三石墨坩埚放入真空炉中，抽真空后，逐渐升温加热至熔融状态，保温、冷却。通过该方法处理后的石墨坩埚在熔炼使用过程中不容易漏液，且延长了使用寿命。
Anti-oxidation and anti-leakage method for graphite crucible
一种石墨坩埚抗氧化防渗漏的方法
WANG ZHONGRAN (author) / LIU LIXIN (author) / YU RONGGANG (author) / ZHONG YONG (author)
2022-06-03
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