Technical Data and Specification

trailing shield, back purging, huntingdon fusion, purge and weld

Argweld Weld Trailing Shields® are available in 'flat format' for sheet metal welding or in curved format for welding circular items such as tubes, pipes and vessels.

For manual welding, there is one 'flat format' version.

The 'curved format' versions are for all radii of tubes pipes and vessels up to 2000 mm (80") diameter.

Curved versions are radiussed for welding on the outside of tubes, pipes and vessels and for welding on the inside of large diameter tubes pipes and vessels.

For automatic welding systems, where the welding torch is being carried by a mechanism, the Argweld Weld Trailing Shields® can be longer and wider to cater for the faster welding speeds of an automatic system. These are made to specification (made to order).

Non-stock curved versions are also manufactured to specification (made to order) to suit the appropriate radius and shape for inside welding.

Argweld Weld Trailing Shields® are suitable for use on all brands of TIG/GTAW, MIG/GMAW** and Plasma/PAW manual or automatic welding torches.

For manual welding, the welder finds that with this lightweight and low cost tool, there is no difficulty in dragging it along the surface being welded. One further benefit is that it carries the welding torch at 90º to the weld.

Each Argweld Weld Trailing Shield® now features a new unique clip design, which means welders can choose between right and left hand use and can easily change different shield sizes without having to change the welding torch.

Separate leak tight gas hose connections are provided with the Argweld Weld Trailing Shields®, single ones for smaller sizes and double or triple ones for larger sizes. (See individual size specification)

The insides of the Argweld Weld Trailing Shields® are manufactured with several layers of mesh with different hole sizes so that the welding shield gas is dispersed widely, evenly and slowly over the surface being welded, to avoid turbulence and the creation of low pressure areas that would otherwise allow oxygen to enter from the outside.

Consumable side wall seals manufactured from flexible silicone rubber are fitted to each Argweld Weld Trailing Shield® and can easily be replaced when burnt or damaged.

Silicone rubber is resistant to temperatures up to 200ºC (392ºF). However, it will burn and harden when welding slowly at high currents, so the side wall seals must be regarded as consumable.

The replacement seals can be purchased cut to size for each Argweld Weld Trailing Shields®, or the replacement material can be purchased as continuous strip, at lower cost, for users to cut their own side wall seals to length when required.

** Some high current MIG/GMAW welding applications might be too hot for practical use of the Argweld Weld Trailing Shields®.


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