Weld Backing Tape® Saves
Grinding Time and Costs
When the undersides of welds are ragged and
uneven, they often need grinding to smooth
them out. This costs labour time and money
for grinding materials.
The use of Argweld® fiberglass Backing Tape®
can save these costs by leaving a smooth fully
penetrating, clean weld that needs no further
work.
Weld Purging Experts Huntingdon Fusion Techniques
HFT® have a range of four Backing Tapes® to support
all weld beads made with welding currents, from 80
amps, up to as high as 600 amps.
“Weld Backing Tape®” is a glass fibre weld backing
system that supports the heavy, molten weld metal,
allowing it to solidify before it could fall away from the
joint. Furthermore, the tape traps the inert gas from
the tig/gtaw weld torch effectively providing a back
purge facility.
HFT manufactures four grades of Weld Backing Tape®
for use up to 80, 160, 240 or 600 Amps which covers
the widest range of welding currents for very thin
to very thick materials, that can be welding with a
single pass. Each tape comprises a 3” (75mm) wide
aluminium adhesive backing strip, in the centre of
which is a 1” (25mm) wide band of woven glass fibre
matting running down the centre. The glass fibre
matting has differing thicknesses to match the welding
current in use.
Once the tape is positioned with the glass fibre
matting under the centre of the weld joint, the welders
can start their arc. The welding torch argon flow has
plenty of space to move between the pores of the
matting, which allows the welding arc to stabilise and
start forming the weld root.
Using Backing Tape®, it is possible to weld with MIG,
(GMAW) TIG (GTAW) or Plasma (PAW) techniques for
the joining of all weldable metals without change to
the chemistry or metallurgy of the weld.
.
Weld Backing Tape® demonstration
video can be viewed at:
https://youtu.be/F6amA6rX2og
www.huntingdonfusion.com
TUBE NEWS January 2018 13