WELD BACKING TAPE 20100 pages

OTHER PURGING PRODUCTS

ARGWELD® PURGE MONITOR MK V

ARGWELD® LEADING AND TRAILING SHIELDS

Before welding can begin using an inert gas, it is essential
to know that the oxygen content at the weld area has been
reduced to a satisfactory low level.

The ARGWELD® Leading and Trailing Shields are designed
for high quality gas coverage of titanium, duplexes and other
reactive metals while welding.
They can be supported
to fit any make of TIG or
plasma welding torch for
manual and automatic
welding on pipes, vessels
or flat plate.

The ARGWELD® Purge Monitor MK V is specifically designed
to measure oxygen content of below 0.1% with a high degree
of accuracy. An oxygen content of below 1% is normally
considered suitable to ensure that there is no oxidation of the
weld, although there may be some exceptions to this when
welding materials such as titanium and zirconium.

ARGWELD®

WELD BACKING
TAPE

By using an ARGWELD®
Trailing Shield, welds
will be left bright and
shiny and eliminate
discolouration, oxidation, porosity, etc. tt
t
A R G W E L D ® Tr a i l i n g
Shields will reduce gas
consumption, save
re-work and eliminate
wasted material costs
due to oxidation.
The Trailing Shields are
manufactured to suit
each application, with
versions for flat plate/
sheet, for any diameter of
tube , pipe or vessel and radiused for welding on the outside
or the inside of vessels.

ARGWELD INFLATABLE PIPE PURGING SYSTEMS
The ARGWELD® Inflatable Pipe Purging Systems are a twin
dam system for creating a purge area in all pipe and fitting
sizes of 50.8 - 1,828 mm (2 - 72”) diameter.
The systems isolate a 10” length either side of the weld
and allow quality, fast purging of the interspace and easy
withdrawal afterwards.

ARGWELD® PURGE MONITOR
ARGWELD® WATER SOLUBLE PURGE FILM
The use of water soluble purge film for manufacture of purging
dams is well proven and the ARGWELD® Film gives superior
results over all other water soluble products. It can be used for
stainless, duplex and chrome-moly steels as well as titanium.
The ARGWELD® Soluble Purge Film makes dams which
produce an impenetrable purge barrier but which can easily
be washed away when hydrostatically testing the pipe or just
by normal wash out.
It dissolves completely without leaving any fibres to clog up
filters or other sensitive parts in a system and it is strong in all
directions so that it can maintain a good gas barrier throughout
the purging process.
The film and adhesive are completely biodegradable and all
packaging materials are recyclable.

Typically for the welding of thin wall stainless steel sheet
and vessels from one side only, the backing tape can be
attached to the backside of the weld, to support the weld
pool, keep the argon from the weld torch surrounding the
weld pool and eliminate the need to back purge, while
giving a consistent high quality underbead profile.

Quick Purge™ Systems
ABT AH82 09/04/2010 GG

Extending the ARGWELD ® range of purging products,
Huntingdon Fusion Techniques are providing an economical
non metallic weld backing system for the backing of welds,
where purging is required but not easily achieved, for quality
and for supporting weld roots to improve weld bead profiles.

We also have a wide range of other products for pipework
fabrication and welding. Ask for details about:
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ARGWELD® Water soluble purge film
ARGWELD® Purge enclosures
ARGWELD® Purge Plugs
TECHWELD™ Tungsten electrode grinders
TECHWELD™ Multi-Strike™ tungsten electrodes

Huntingdon Fusion Techniques Limited, Stukeley Meadow, Burry Port, Carms SA16 0BU United Kingdom
Telephone: +44 (0) 1554 836 836
Facsimile: +44 (0) 1554 836 837
Email: hft@huntingdonfusion.com
http://www.huntingdonfusion.com
Copyright © 2000-2010 All rights reserved. This publication may not be reproduced by any means without the written permission of Huntingdon Fusion Techniques

For purging large vessels the tremendous savings of purge
gas and waiting time, pays for the use of the backing tape
many times over.
The high temperature heat resistant adhesive aluminium
backing foil is 75 mm (3 inch) wide and in the centre is a heat
resistant band of woven glass fibre cloth 25 mm
(1 inch) wide.
The Amperage range for the tape ranges from 0 through to
240 Amps depending on thickness of the woven glass fibre.
The thickness of the cloth will support single pass welding.

(Without change to the chemistry or metallurgy of the weld).
Features:

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Speeds up production

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Provides back purge facility

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Ideal for stainless steel and alloyed metals

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Saves cleaning costs

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Massive purge gas savings

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Eliminates weld defects

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Suitable for sheet, plate, pipes, vessels

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For horizontal or vertical welding

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No gouging or grinding

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No re-welding or rework

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Allows faster welding with lower skilled t

labour.