Page 44 - ITAtube Journal 1 2019

Member News
Argweld Weld Trailing Shield
ing on contact with air. The mate- rials mentioned above are chosen for their corrosion resistant prop- erties in particular and if they are then allowed to oxidise during the weld cycle, expensive post welding cleaning techniques become nec- essary.”
“These lightweight, easy to use Trailing Shields® pay for them- selves in just one weld! They are perfect for manual welders, as well as well as automatic machines by helping to cover the weld with an inert gas coverage during and after welding, producing bright, shiny, oxide free welds every time.”
The Trailing Shield® is connected to the argon gas supply, diffus- ing gas evenly without turbu- lence through the multi layers of stainless steel mesh built into the body of the shield. At each side, replaceable silicone rubber side shields provide a barrier to prevent the argon escaping sideways and remaining over the weld metal. As the welding torch is moved forward, the weld remains under an argon gas shield until the welded
metal has cooled below its oxida- tion temperature.
Trailing Shields® are reusable, with a temperature resistance of up to 230oC. They prevent re-work, elim- inate the need for an expensive purge chamber and allow for faster welding.
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.
Radiused Shields are designed to suit the exact diameter of the pipe or vessels being welded. Flat models are available for sheet and plate welding.
Protem SAS
Portable Beveling Machine – US 25
The US25 portable pipe bevelling tool is the most powerful, robust, reliable and versatile portable tube and pipe bevelling/ facing machine in the world.
The versatile cutting head accepts up to four cutting bits. Four machining operations can be carried out simultaneously or individually. The tool bits can be changed and adjusted very quickly. Carbide tool inserts can also be used.
ITAtube Journal No1/February 2019
44