PEB Welding: Improving Slag Detachability & Bead Finish in PEB Welding

A PEB manufacturer using a high-priced competitor SAW flux was facing the following challenges:

• Slag not detaching after welding
• Poor bead appearance
• Extra post-weld cleaning and rework
• Lower productivity on PTW machines

Solution Implemented

The customer replaced the existing flux with AV EZEWELD 18L(Z). The video demonstrates that proper SAW flux selection results in stable welding performance.

Video Reference:
Right-side weld – AV EZEWELD 18L(Z)
Left-side weld – Previous competitor flux

Welding Setup

• Process: Submerged Arc Welding (SAW)
• Machine: Pull-Through Welding (PTW)
• Application: PEB structural fillet weld

Consumables & Parameters

• Flux: AV EZEWELD 18L-Z
• Wire: EM12K – 1.6 mm (Tandem)
• Weld Type: Fillet weld
• Welding Speed: 1200 mm/min

• Slag peeled off cleanly without manual intervention
• Smooth and shiny weld bead formation
• No post-weld cleaning or rework required
• Reduced welder fatigue
• Faster throughput on PTW line without rework

Key Advantages Delivered

• Cost-effective alternative to premium competitor flux
• Self-peeling slag behavior
• Consistent bead finish
• Improved productivity and time savings

Outcome

The customer achieved better weld quality at a lower operating cost, confirming that AV EZEWELD 18L(Z) is the best choice for high-speed PEB welding on PTW machines.