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Process for depositing silicon carbide coating on surface of graphite piece
The invention relates to the technical field of silicon carbide, and discloses a process for depositing a silicon carbide coating on the surface of a graphite piece, which comprises the following steps of: 1, cleaning the surface of the graphite piece by using ultrasonic waves to ensure that no impurity exists; 2, mixing silicon carbide, white corundum micro powder, alumina micro powder, ceramic powder, chromic oxide, green micro powder, spodumene and oil sludge in proportion; 3, adding sodium hydroxide water into the mixture, and stirring and mixing; step 4, adding the silica sol into the mixture added with the sodium hydroxide water again, and mixing and stirring; 5, the surface of the graphite piece is evenly coated with the stirred coating to form a coating; and 6, naturally drying the graphite piece coated with the coating in the shade. According to the process for depositing the silicon carbide coating on the surface of the graphite piece, the ceramic powder is added into the formula, so that the heat resistance of the coating is improved, the coating is more stable, and the beneficial effect that the surface of the graphite piece can be directly coated by improving the silicon carbide coating formula process is achieved.
本发明涉及碳化硅技术领域，且公开了一种石墨件表面沉积碳化硅涂层工艺，包括以下步骤：步骤一、使用超声波对石墨件表面清洗确保无杂质；步骤二、将碳化硅、白刚玉微粉、氧化铝微粉、陶瓷粉末、氧化铬、绿微粉、锂辉石和油泥按比例混合；步骤三、向混合料中添加氢氧化钠水进行搅拌混合；步骤四、向加入氢氧化钠水的混合料中再次加入矽溶胶进行混合搅拌；步骤五、搅拌后的涂料均匀涂覆石墨件表面形成涂层；步骤六、涂覆涂层的石墨件自然阴干。该石墨件表面沉积碳化硅涂层工艺，通过在配方中添加陶瓷粉末从而增加涂层的耐热性能，使得涂层更稳定，达到了改进碳化硅涂层配方工艺可以直接涂覆石墨件表面的有益效果。
Process for depositing silicon carbide coating on surface of graphite piece
The invention relates to the technical field of silicon carbide, and discloses a process for depositing a silicon carbide coating on the surface of a graphite piece, which comprises the following steps of: 1, cleaning the surface of the graphite piece by using ultrasonic waves to ensure that no impurity exists; 2, mixing silicon carbide, white corundum micro powder, alumina micro powder, ceramic powder, chromic oxide, green micro powder, spodumene and oil sludge in proportion; 3, adding sodium hydroxide water into the mixture, and stirring and mixing; step 4, adding the silica sol into the mixture added with the sodium hydroxide water again, and mixing and stirring; 5, the surface of the graphite piece is evenly coated with the stirred coating to form a coating; and 6, naturally drying the graphite piece coated with the coating in the shade. According to the process for depositing the silicon carbide coating on the surface of the graphite piece, the ceramic powder is added into the formula, so that the heat resistance of the coating is improved, the coating is more stable, and the beneficial effect that the surface of the graphite piece can be directly coated by improving the silicon carbide coating formula process is achieved.
本发明涉及碳化硅技术领域，且公开了一种石墨件表面沉积碳化硅涂层工艺，包括以下步骤：步骤一、使用超声波对石墨件表面清洗确保无杂质；步骤二、将碳化硅、白刚玉微粉、氧化铝微粉、陶瓷粉末、氧化铬、绿微粉、锂辉石和油泥按比例混合；步骤三、向混合料中添加氢氧化钠水进行搅拌混合；步骤四、向加入氢氧化钠水的混合料中再次加入矽溶胶进行混合搅拌；步骤五、搅拌后的涂料均匀涂覆石墨件表面形成涂层；步骤六、涂覆涂层的石墨件自然阴干。该石墨件表面沉积碳化硅涂层工艺，通过在配方中添加陶瓷粉末从而增加涂层的耐热性能，使得涂层更稳定，达到了改进碳化硅涂层配方工艺可以直接涂覆石墨件表面的有益效果。
Process for depositing silicon carbide coating on surface of graphite piece
一种石墨件表面沉积碳化硅涂层工艺
WU WEIRONG (author) / ZHANG SHUPENG (author)
2023-12-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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