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Method for preparing hard metal carbide coating on graphite surface
The invention discloses a method for preparing a hard metal carbide coating on the surface of a graphite material. The method comprises the following steps: embedding a graphite material into a mixed salt bath taking borax as base salt, conducting heating to a molten state, and carrying out a preparation reaction of the coating; and after reacting for a period of time, taking out a graphite sample, quenching the graphite sample to room temperature, cleaning residual salt on the surface of the sample, and carrying out drying so as to obtain a compact wear-resistant metal carbide coating on the graphite surface. The method is used for surface densification modification of various carbon-containing materials, a preparation process is simple, equipment requirements are low, and cost is low. The prepared metal carbide coating has extremely high hardness, excellent wear resistance and excellent corrosion resistance; and the method is widely applied to various complex and severe environments and related special application conditions including aerospace engineering and severe marine environments.
本发明公开了一种在石墨材料表面制备硬质金属碳化物涂层的方法，将石墨材料埋入以硼砂为基盐的混合盐浴中，并加热至熔融状态，进行涂层的制备反应。反应一段时间后，取出石墨样品，淬火至室温，洗净样品表面残盐后干燥，即可在石墨表面获得一层致密耐磨的金属碳化物涂层。本发明方法用于多种含碳材料表面致密化改性，制备工艺简单、设备要求低、成本低廉。所制备的金属碳化物涂层具有极高的硬度和极佳的耐磨性能，和优良的耐腐蚀性能；本发明方法广泛应用于各种复杂恶劣环境下及相关特种应用条件，包括航空航天工程和恶劣海洋环境。
Method for preparing hard metal carbide coating on graphite surface
The invention discloses a method for preparing a hard metal carbide coating on the surface of a graphite material. The method comprises the following steps: embedding a graphite material into a mixed salt bath taking borax as base salt, conducting heating to a molten state, and carrying out a preparation reaction of the coating; and after reacting for a period of time, taking out a graphite sample, quenching the graphite sample to room temperature, cleaning residual salt on the surface of the sample, and carrying out drying so as to obtain a compact wear-resistant metal carbide coating on the graphite surface. The method is used for surface densification modification of various carbon-containing materials, a preparation process is simple, equipment requirements are low, and cost is low. The prepared metal carbide coating has extremely high hardness, excellent wear resistance and excellent corrosion resistance; and the method is widely applied to various complex and severe environments and related special application conditions including aerospace engineering and severe marine environments.
本发明公开了一种在石墨材料表面制备硬质金属碳化物涂层的方法，将石墨材料埋入以硼砂为基盐的混合盐浴中，并加热至熔融状态，进行涂层的制备反应。反应一段时间后，取出石墨样品，淬火至室温，洗净样品表面残盐后干燥，即可在石墨表面获得一层致密耐磨的金属碳化物涂层。本发明方法用于多种含碳材料表面致密化改性，制备工艺简单、设备要求低、成本低廉。所制备的金属碳化物涂层具有极高的硬度和极佳的耐磨性能，和优良的耐腐蚀性能；本发明方法广泛应用于各种复杂恶劣环境下及相关特种应用条件，包括航空航天工程和恶劣海洋环境。
Method for preparing hard metal carbide coating on graphite surface
在石墨表面制备硬质金属碳化物涂层的方法
WU ZHENYU (author) / CHEN YIGANG (author) / QING HUAWEN (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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