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1. (WO2018157867) SURFACE PROCESSING METHOD FOR TANTALUM SPINNING HEAD

Pub. No.:    WO/2018/157867    International Application No.:    PCT/CN2018/077938
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Sat Mar 03 00:59:59 CET 2018
IPC: C25D 11/26
D01D 4/02
Applicants: BEIJING HUAYU CHUANGXIN TA-NB SCIENCE&TECHNOLOGY CO., LTD.
北京华宇创新钽铌科技有限公司
BEIJING HUAYU CHUANGXIN SCIENCE & TRADE CO., LTD.
北京华宇创新科贸有限责任公司
Inventors: LIU, Yuzhong
刘寓中
Title: SURFACE PROCESSING METHOD FOR TANTALUM SPINNING HEAD
Abstract:
A surface processing method for a tantalum spinning head, comprising the following steps: (a) forming a layer of Ta2O5 film on a tantalum spinning head; (b) optional polishing: polishing the fibre discharge surface of the tantalum spinning head having undergone processing in step (a) to rub off the Ta2O5 film on the surface of the fibre discharge surface; and (c) film plating: using a molten salt electrochemical method to perform film plating on the tantalum spinning head having undergone processing in step (b) to form a film layer containing a lithium compound. A surface processing method for a tantalum spinning head, comprising the following step: using a molten salt electrochemical method to perform film plating on the tantalum spinning head to form a film layer containing a lithium compound, the film plating temperature being 250℃-430℃. A tantalum spinning head acquired by means of surface processing using the aforementioned method.