STRIP CLADDING PROCESSES
Cladding is a fundamental process in the pressure vessel industry and is applied across whole spectrum of applications, from Nuclear, Oil and Gas industries to Chemical Processing equipment and steelmaking. Cladding is required on the process side of high pressure critical process plant equipment to provide corrosion resistance against highly severe corrosive service fluid or to increase wear resistance of a component being subjected to heavy wear and tear applications e.g. continuous casting rollers in steel mills.
Submerged arc strip cladding
- The arc causes more penetration into the base material, resulting in dilution levels of ~20%.
- 3D part visualization and rotation,
- Deposition rate: 12-14 kg/h for 60 x 0,5 mm strip.
- Current range restricted to limit dilution.
- Arc-less process, use conductive flux and works on Joule’s resistance heating principle.
- The strip current passes through the molten slag. The resulting resistance heating effect melts the strip and deposits the molten weld pool onto the base material.
- Low dilution level (9 to 12%). Process has significant advantages over SAW.
- Hot metal cored wires added to the molten pool as 3rd constituent.
- Always in single layer, coupled with high welding speed.
- Lowest dilution level coupled with the highest deposition and faster surface coverage rates.
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