3. 2
Trailing Shields
Main Features
Designed for effective inert gas coverage when welding
titanium alloys and stainless steel
Ensures welds are left bright and shiny and eliminates
both discolouration& oxidation
For use on flat sheet or plate & internal or external
welds on tubes, pipes, tanks, vessels, heat exchangers
etc.
Fit any make of GTAW/Tig,
PAW/Plasma or GMAW/Mig welding
torch for manual or automatic welding
continued..
4. 3
Trailing Shields
Main Features
Reduces gas consumption, saves re-work &eliminates
wasted material costs, due to oxidation
Flexible silicone side walls to create closed inert gas
chamber
Auxiliary hoses for greater shield gas coverage where
required
Triple mesh gas distribution system
with non turbulent gas flow
Replaceable silicone rubber side walls
5. 4
Trailing Shields
Potential Customers
Aero engine manufacturing and maintenance
companies
Boiler, Heat Exchanger, Vacuum Tank, Cryotank
manufacturers
Semi conductor, petrochemical, food, dairy piping
fabricators
Racing and sports car manufactures
Every stainless steel fabricator
wishing to save money by dramatically
reducing cleaning costs
6. 5
Trailing Shields
Example
A typical costing of a weld
with trailing shield
vs
without trailing shield
36'' Ø Tank, vessel or pipe
UK List price:
Trailing Shield for a 36'' Ø tank… £196
continued..
7. 6
Trailing Shields
36'' Ø Pipe/Tank welded
without a Trailing Shield
36'' Ø Pipe/Tank welded
witha Trailing Shield
Grinding time1 hr (est.) £30.00 £0.00
Cleaning material costs £10.00 £0.00
Disposal costs £10.00 £0.00
Grinding consumables £10.00 £0.00
Administration costs* £100.00 £10.00 (1 product only)
Cleaning time 1 hr (est.)
subject to size of weld.
£30.00 £0.00
Cost of
Trailing Shield
£0.00
£196.00
Once only purchase
Total costs £190.00 (every weld)
£206 (first weld only)
Approximately £10 for all
subsequent welds
8. 7
Trailing Shields
Fast Payback
The use of a TraillingShield gives
payback in just two welds
The use of aTrailing Shield of some kind for titanium
welding is almost mandatory, for the applications
where the productcannotbe placed inside a
Welding Enclosure
When welding larger titanium components, that could
be placed in a Welding Chamber of some kind,
Trailing Shields might be dramatically more cost
effective than the use of a
Welding Chamber
13. 12
Trailing Shields
Automatic Welding
Trailing Shield for automatic welding machine used for flat plate
(Note dual shield gas supply)
D) 75 mm/3” approx Width including gasket
A) 250 mm/10” approx Body length
B) 320 mm/12.6” approx Length including gasket
C) 50 mm/2” approx Body width
15. 14
Trailing Shields
How a Trailing Shield can be used to shield the outside of a
circumferential weld while being welded from the inside.
(Inset bottom right : finished weld with no discoloration)
16. 15
Trailing Shields
Inside view
Inside view of a Trailing Shield, showing gauze mesh for
uniform gas distribution and high temperature resistant
silicone rubber replaceable skirts.
17. All photos courtesy of
Huntingdon Fusion Techniques Limited, UK.
Thank
you for
your
attention