Filamentary Tungsten Dissipates For Industrial Applications
                     Filamentary Tungsten 
Dissipates For Industrial 
Applications
Filamentary Tungsten Dispensers (also sometimes referred to as 
filamentary tubing or filamentary anode) are used for the manufacture 
of the final layer of anodized aluminum forging. 
• Filamentary Tungsten Dispensers Cathodes (also sometimes 
referred to as filamentary tubing or filamentary anode) are used for 
the manufacture of the final layer of anodized aluminum forging. 
As in all manufacturing processes, the ability to create the proper 
anodized product with high quality and consistent color requires 
the use of high quality materials. In this case, the material to be 
used is the high quality filamentary tungsten cathode (herein 
referred to as a “Cathode”) and the specific anodizing method is 
generally a non-contact one utilizing a solute in the discharge 
mechanism. The common cathode used is tungsten filamentary 
which is typically made from a solid alloy or iron.
• As mentioned above, this specific metal fabrication 
process requires anodized deposits to be formed on the 
cathode in order to achieve a finished product with a 
color matching the surrounding metal. Additionally, it is 
critical that the anodizing effect is consistent and last 
through multiple passes with only very minute 
discontinuities in between. The entire fabrication cycle is 
therefore designed to match the entire color spectrum 
from the raw titanium to the final product.
• Filamentary Tungsten Copper cathodes are typically 
made by one or more companies. The cathode is often 
produced in bulk to be used in mass production methods 
for high volume products. OEMs (Original Equipment 
Manufacturer) must typically certify that their cathodes 
are specifically designed and produced for their 
applications. This certification is typically provided to 
assist customers in making their purchasing decisions.
• A common variation among filamentary cathode 
manufacturers includes the addition of nickel to improve 
corrosion resistance. Typically, nickel has a cobalt ion 
and is added in small amounts. This is typically done in 
favor of improving performance at a lower cost. Other 
features to note include the incorporation of a thin 
metallic film on the cathode surface. This provides 
additional protection against moisture and corrosion.
• Filamentary Tungsten Dissipates typically comes in 
standard sizes. Some manufacturers will even custom 
make them to fit certain applications. The anodizing 
process is achieved with a fine mist of aluminum oxide. 
The anodizing process occurs quickly after the cathodes 
are formed. The anodized coating is then allowed to cure 
for several hours before being applied to the metal.
• It should be noted that Filament Laser Diode Spacers
 are used in applications where high strength, durability, 
and excellent electrical characteristics are key factors. 
The anodized coating thickness will affect both the 
strength and durability of the cathode. Companies that 
produce these products are aware of this and have 
designed the cathode package specifically for their 
application. The coating thicknesses can range in 
thickness from a few micrometers to several millimeters. 
There is a wide price range for these cathodes.
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