Manufacturing method of tantalum carbide coating on surface of graphite piece: Fid-Bau Portal

Manufacturing method of tantalum carbide coating on surface of graphite piece

YAO YONGXING / LI WENXIN

The invention discloses a preparation method of a tantalum carbide coating on the surface of a graphite piece, which comprises the following steps: uniformly dispersing tantalum oxide powder into a phenolic resin solution to prepare a suspension, coating the surface of the graphite piece with the suspension, curing and sintering to obtain the graphite piece with the tantalum carbide coating. The preparation method disclosed by the invention has the advantages of few steps, simplicity and convenience in operation, high safety and low cost, and the prepared graphite piece can be repeatedly used, is relatively high in quality and is not easy to crack and peel; according to different requirements for the thickness of the tantalum carbide coating, the tantalum carbide coating with different thicknesses can be formed through multiple times of coating and sintering, the formed tantalum carbide coating is uniform, and the requirement for the surface roughness of a graphite piece is met.

本发明公开了一种石墨件表面碳化钽涂层的制作方法，将氧化钽粉末均匀分散到酚醛树脂溶液中，制成混悬液，将混悬液涂覆到石墨件表面，固化、烧结得到具有碳化钽涂层的石墨件；本发明的制备方法具有步骤少、操作简便、安全性高、成本低的优势，制成的石墨件可反复使用，且质量较高，不易开裂、脱皮；针对碳化钽涂层厚度的不同需求，本发明可多次涂覆烧结以形成不同厚度的碳化钽涂层，且形成的碳化钽涂层较为均匀，满足对石墨件表面粗糙程度的要求。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren