LUMA tungsten wire and LUMA tungsten-rhenium wire is used as
charge wire in several different application areas. Supplying
high quality wire made by different raw materials and with
different surface finishes, LUMA is a highly appreciated
supplier to manufacturers working within this application
As the charge wire is exposed to high voltage and expected to
give precise results for repetitive cycles; LUMA tungsten
wire and tungsten-rhenium wire are popular materials due to
their high strength and durability.
A charge wire is used to create a field of positive and
negative charges. These charges create an electrostatic field
used in for example digital printers, air cleaners and
LUMA tungsten-rhenium wire
Depending on type of application; the choice between raw
materials, for example LUMA tungsten or tungsten-rhenium
wire, as well as surface finish, such as clean, oxidized or
gold plated, differs.
Below are some examples of application areas using LUMA wire
as charge wire;
LUMA supplies wire which is used as corona wire, generating
fields of positive charges in large digital printers.
Tungsten wire is a reliable and cost-effective alternative
for repetitive cycles of charge and discharge. The tungsten
wire is exposed to a high voltage which puts high demands on
its durability and strength. Mostly LUMA gold plated tungsten
and Luma gold plated tungsten-rhenium wire is used, but also
cleaned and oxidized wire is supplied for this application
area. LUMA tungsten wire with a gold plated surface is the
most common alternative. The gold coated surface reduces
defects and enhances the print quality as well as lifetime.
The gold coat also prevents corrosion.
• Air ionizers / Negative ion generator
LUMA supplies wires to manufacturers of air ionizers. An air
ionizer or negative ion generator is a device that improves
the quality of the air in its environment. By using high
voltage to charge air molecules it attracts airborne
particles. The most common design generates negative ions.
The positively charge particles are attracted to the ions
similar to static electricity and then passed through a
filter. Besides the usage in for example hospitals where the
air environment is of most importance, ion generators are
also used in manufacturing facilities to minimize static
electricity or contamination of dust particles.
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