Black tungsten wire cleaned in hydrogen atmosphere, in order to get cleaned tungsten wire.
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.
More information, please do not hesitate to contact sales@chinatungsten.com.
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