Generally speaking, there are two cleaning methods of molybdenum wire to achieve bright and shiny surface condition. They are electrolytic cleaning and hydrogen-sintered cleaning.
Molybdenum Wire Cleaned by Electrolysis
This is a method of metal cleaning with the aid of an applied voltage potential in the presence of a medium which conducts electricity, wherein the metal is one electrode submerged in the electrolyte.
Molybdenum Wire Cleaned in Hydrogen Atmosphere
This method of cleaning surfaces on a metallic article, comprising the steps of: (a) disposing the article within a vacuum furnace; (b) heating the article to a temperature of about 1400° F. or above within the vacuum furnace; and (c) repetitively cycling hydrogen gas and a vacuum within the furnace by supplying in each cycle a fresh supply of hydrogen gas within the furnace at a pressure within a range of about 500-10,000 microns, followed by removal of reaction products resulting from a reaction between hydrogen gas and surface contaminants on the article and substantially all residual hydrogen gas from within the furnace.
An example of cleaning effect---diameter=0.10mm