Press

Successful Low Cost Weld Purging


Weld Purging is the act of removing oxygen from the vicinity of a joint before, during and after welding. Metals that require weld purging include stainless steels, titanium and zirconium.

Weld Purging various sizes of tubes and pipes can be challenging as well as expensive, which is why many welders today continue to construct their own dams to cut costs. Homemade dams made from material such as foam, sponge or paper can often lead to loss of welds when they leak or slip from position thus flooding the welding zone with air.

Leaders in Weld Purging Technology, Huntingdon Fusion Techniques HFT® offer low cost Weld Purge Film® Kits which can be cut to each pipe size.

Luke Keane, Technical Sales Manager for HFT® said: “Weld Purge Film is great for when mechanical purging devices cannot be retrieved. The Film can be used to create an impermeable barrier, but can be easily washed away after use without leaving any residue.”

Weld Purge Film® Kits can be used on pipe diameters up to 900 mm (36”) and for temperatures up to 300ºC (572ºF) without the material burning, coming loose and losing the weld purge. 

The water-soluble Weld Purge Film® allows dams to be cut easily with the safety knife provided and once they are fixed into position using the water-soluble Weld Purge Super Adhesive® provided, produce an impenetrable purge barrier that can easily be washed away during hydrostatic testing of the pipe or just by normal wash-out. 

These affordable Kits will save operators high costs by minimising gas usage dramatically reducing purge time and eliminating the need to clean or even a failed weld. Weld Purge Film® Kits have been designed and developed by HFT®, containing product accessories needed to manufacture dams that will not come loose during welding.

Other technical advantages of using water-soluble film instead of other materials include: 

  • The total transparency of the film dams, allows the welder to see the weld root as it is being laid.
  • Vapour pressure of the film is very low and does not outgas harmful elements during welding that can mix with the hot metal and cause metallurgical defects.
  • The Argweld® Film does not contain water, unlike paper and sponge products do.

After welding, the water-soluble film is simply washed away and dissolved down to molecular level, leaving no trace.

Huntingdon Fusion Techniques HFT® have a worldwide Exclusive Distributor network, which can be found at www.huntingdonfusion.com.

Made in Wales – Manufacturer of the Year 2019!



New service from OilVoice
Trip Shepherd is for companies who need to track their staff in areas of risk.
It's free to use, so we invite you to try it.

Visit source site

https://huntingdonfusion.com/index.php/en_gb/news/...

weld purge filmhuntingdon fusionweld purgingback purge

More items from michaelareay


Low Cost Alternative to Metal Glove Boxes

There is an ever-increasing demand in industries such as the Aerospace, Medical and Motorsport for high quality welded titanium components. Often, welding has to be carried out in an environment under 50 parts per million throughout the welding cycle. Metal glove boxes were previously a big succes ...

Michaela Reay


Posted 3 days agoPress > huntingdon fusionwelding enclosuremetal glove box +2

Low Cost Pipe Stopping when access is tight

Pipe stopping where access is tight can pose challenges for when duties such as repair work, leak testing and weld purging are required. Pipestoppers®, a Division of Huntingdon Fusion Techniques HFT® design and manufacture a Range of Mechanical and Inflatable Pipestoppers® and Plugs to suit a vari ...

Michaela Reay


Posted 17 days agoPress > low profile stopperspipe stopperpipe blocking +2

QuickPurge® for Weld Purging Large Diameter Pipework

Weld Purging large diameter pipework made from stainless, duplex and chrome steels, titanium or zirconium can be expensive, with requirements to have the oxygen level well below 100 ppm during the welding cycle.  As it is not cost effective to completely fill pipework with expensive inert gas, Hun ...

Michaela Reay


Posted 24 days agoPress > quickpurgeweld purginghuntingdon fusion +2

Protect your weld with the New Design Weld Trailing Shield®

Protecting titanium and stainless steel welds from coming into contact with air whilst they cool prevents oxidation, weld defects and rework. Leaders in Weld Purging Technology, Huntingdon Fusion Techniques HFT® have launched their re-designed Weld Trailing Shields®, which provide an additional in ...

Michaela Reay


Posted 1 month agoPress > argweldtrailing shieldinert gas shield +2

Pipe Maintenance with Pipe Freezing

Companies currently facing system downtime can drastically reduce pipe and valve repair and maintenance costs with Accu-Freeze™ available from the Pipestoppers® Division of Huntingdon Fusion Techniques HFT®. Georgia Gascoyne, CEO for HFT® said: “Pipe freezing is a simple and efficient way of seali ...

Michaela Reay


Posted 1 month agoPress > pipe freezingaccu freezeqwik freezer +1
All posts from michaelareay