In the sheelite, A.P.T. Refining and reduction, tungsten (W) smelting. How to make tungsten carbide (WC)

摘要

1. The technical field to which the invention described in the claims belongs;Tungsten smelting and tungsten carbide manufacturing technology in powder metallurgy of metallurgy (powder metallurgy).;2. Technical challenges to be solved by the invention;Since the purity of the commercially available tungsten powder is 99.8%, this process raises the purity to 99.99%.;3. The point of the solution of the invention;Improved quality by almost completely eliminating impurities during the processing process of Tungsten.;4. An important use of the invention.;end. Electronic products (electrode of electron tube), electric products (filament of bulb).;I. Manufacture of powder metallurgy and cemented carbide tool (milling carter, bite tip, carbide saw blade, end mill, mining bit).;All. Alloy addition metal of special special steel.