Lincoln LN 25 Innershield
The Lincoln Innershield process is a welding process that is often used on outdoor construction sites. The so-called Innershield wire is supplied on a standard basket or ring spool and can be welded without inert gas.
Weather and wind conditions have virtually no effect on this wire.
Innershield insert
Modern bridge construction, hydraulic steel construction, shipyards and track construction are increasingly using the Innershield process on construction sites, as it can replace the stick electrode and offer enormous savings potential. Shielding gas is not required for this welding process, which is why it is often referred to as gas-shielded cored wire. This system can be used as soon as welding is carried out outdoors. More and more welding companies around the world are turning to this process, even though it was developed almost 80 years ago.
Basics of the Innershield process
Innershield wire or gas-shielded cored wire contains a powder filling (arc stabilizer) in a metal tube. The powder contains the alloying elements and arc stabilizers to produce an arc without shielding gas. The metal tube is melted in the arc and causes the weld seam to be filled with filler material.
Economic efficiency
A major advantage of gas-shielded flux-cored wire welding compared to stick electrode welding is that the wire is on a so-called "endless spool" weighing approx. 11 kg. In contrast to manual metal arc welding, welding can be carried out continuously as there are no breaks for changing the stick electrode. There is no need to transport argon gas cylinders, which are classified as hazardous goods.
Welding systems for the Innershield process
An Innershield system combination consists of a welding inverter, e.g. Lincoln Flextec 350, a closed flameproof Lincoln LN-25 wire feed box and a special air-cooled K126 flux-cored welding torch.
Frequently asked questionsto Lincoln Innershield
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